Intraoral scanning system

Abstract

An intraoral scanning system (102) comprises an intraoral scanner (104) configured for obtaining images of a dental object. The intraoral scanner (104) comprises a projector unit (112) for illuminating the dental object, a camera unit (114) configured for acquiring images of the dental object, a scanner housing (116), and a button interface (118) arranged on the scanner housing (116), the projector unit (112) and the camera unit (114) being arranged inside the scanner housing (116). The button interface (118) comprises a first button (120) having a contact surface with a first haptic property and a second button (122) having a contact surface with a second haptic property. The first button (120) is activated when a first activation weight is applied onto the contact surface of the first button (120), and the second button (122) is activated when a second activation weight is applied onto the contact surface of the second button (122). The first activation weight is different from the second activation weight.

Description

Technical Field

[0001] This invention generally relates to intraoral scanning systems, and more specifically, to an intraoral scanner with a button interface that enhances the user experience during scanning a patient's oral cavity. Background Technology

[0002] Intraoral scanners are handheld devices commonly used in dentistry to scan and capture digital images of the human oral cavity. Images can be generated on a computing device to create digital impression data of the oral cavity. Such handheld devices include input interfaces for operating various functions, such as activating the device and / or feeding commands to the computing device. Users such as dentists and medical practitioners find using the input interface cumbersome, for example, when they expect to view the oral cavity without visual interruption through digital images, and / or when using such an interface to select any object on the computing device. Summary of the Invention

[0003] The object of this invention is to provide an input interface (e.g., a button interface) for an intraoral scanner to address one or more drawbacks of the prior art. As an example, an intraoral scanner includes buttons that can be distinguished from each other, for example, by their tactile characteristics.

[0004] To this end, an intraoral scanning system is described. The intraoral scanning system includes an intraoral scanner for acquiring images of a dental object. The intraoral scanner includes a projector unit for illuminating the dental object, a camera unit for acquiring images of the dental object, a scanner housing housing the projector unit and the camera unit, and a button interface disposed on the scanner housing. The button interface includes a first button and a second button. The first button has a contact surface with a first tactile characteristic. The first button is activated when a first activation weight is applied to the contact surface of the first button. The second button has a contact surface with a second tactile characteristic. The second button is activated when a second activation weight is applied to the contact surface of the second button.

[0005] In this document, the term "tactile properties" is used to describe surface features that can be perceived by touch, such as contours, shapes, surface roughness, etc. The term "contact surface" is used to describe the surface of a button configured to be manipulated by a user (e.g., by touching the contact surface with a user's finger). Therefore, a contact surface is the externally exposed surface of a button (e.g., a first button and a second button) configured to be activated by contact with a user.

[0006] In some additional, alternative, or selectively cumulative embodiments, the first tactile characteristic differs from the second tactile characteristic, and / or, the first activation weight differs from the second activation weight. Different tactile characteristics and different activation weights allow the user of the intraoral scanner to distinguish buttons by their tactile sensation.

[0007] In some additional, alternative, or selectively cumulative embodiments, the first activation weight is between 170 g and 270 g, preferably between 185 g and 255 g, and more preferably between 200 g and 240 g.

[0008] In some additional, alternative, or selectively cumulative embodiments, the second activation weight is between 120 g and 220 g, preferably between 135 g and 205 g, and more preferably between 150 g and 190 g.

[0009] In some additional, alternative, or selectively cumulative embodiments, the first activation weight is at least 10% heavier than the second activation weight, preferably 20% heavier, and more preferably 25% heavier.

[0010] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first outer contour and the contact surface of the second button has a second outer contour. In some embodiments, the first outer contour differs from the second outer contour. This allows buttons to be distinguished by their tactile feel.

[0011] In some additional, alternative, or selectively cumulative embodiments, one of the first and second contours is generally convex, while the other of the first and second contours is generally concave.

[0012] In some additional, alternative, or selectively cumulative embodiments, the first profile is generally concave, while the second profile is generally convex.

[0013] In some additional, alternative, or selectively cumulative embodiments, the first contour includes a recess, while the second contour includes a dimple. This allows buttons to be distinguished by their tactile feel.

[0014] In some additional, alternative, or selectively cumulative embodiments, the first profile includes a circumferential edge surrounding the recess.

[0015] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first outer area, and the contact surface of the second button has a second outer area. The first outer area differs from the second outer area. This allows the buttons (i.e., the first button and the second button) to be distinguished by tactile sensation.

[0016] In some additional, alternative, or selectively cumulative embodiments, one of the first and second outer areas is 20% to 60% larger than the other of the first and second outer areas, preferably 30% to 50% larger, and more preferably 35% to 45% larger.

[0017] In some additional, alternative, or selectively cumulative embodiments, the first outer area is larger than the second outer area.

[0018] In some additional, alternative, or selectively cumulative embodiments, the first outer area is 200 mm. 2 Up to 300mm 2 Between, preferably 220mm 2 Up to 280mm 2 Between, more preferably at 240mm 2 Up to 260mm 2 between.

[0019] In some additional, alternative, or selectively cumulative embodiments, the second outer area is 125 mm. 2 Up to 225mm 2 Between, preferably 145 mm 2 Up to 205 mm 2 Between, more preferably between 165 mm 2 Up to 185 mm 2 between.

[0020] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first activation area, and the contact surface of the second button has a second activation area, and the first activation area is different from the second activation area. This allows buttons to be distinguished by tactile sensation.

[0021] In some additional, alternative, or selectively cumulative embodiments, one of the first and second active regions is 2 to 10 times larger than the other of the first and second active regions, preferably 4 to 8 times larger, and more preferably 5 to 7 times larger.

[0022] In some additional, alternative, or selectively cumulative embodiments, the first activation region is larger than the second activation region.

[0023] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first shape, and the contact surface of the second button has a second shape. The first shape differs from the second shape. This allows buttons to be distinguished by their tactile feel.

[0024] In some additional, alternative, or selectively cumulative embodiments, one or both of the first and second shapes are generally circular.

[0025] In some additional, alternative, or selectively cumulative embodiments, the radius of the first profile is between 5 mm and 13 mm, preferably between 6 mm and 12 mm, and more preferably between 7 mm and 11 mm.

[0026] In some additional, alternative, or selectively cumulative embodiments, the radius of the second profile is between 5.5 mm and 11.5 mm, preferably between 6.5 mm and 10.5 mm, and more preferably between 5.5 mm and 9.5 mm.

[0027] In some additional, alternative, or selectively cumulative embodiments, the center of the first button has a first height above or below the outer surface of the scanner housing, and the center of the second button has a second height above or below the outer surface of the scanner housing. The first height differs from the second height. This allows the buttons to be distinguished by tactile sensation.

[0028] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first surface roughness, and the contact surface of the second button has a second surface roughness. The first surface roughness differs from the second surface roughness. This allows buttons to be distinguished by their tactile feel.

[0029] In some additional, alternative, or selectively cumulative embodiments, the center of the first button and the center of the second button are between 12 mm and 24 mm apart, preferably between 14 mm and 22 mm, and more preferably between 16 mm and 20 mm.

[0030] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first type of visual marking, while the contact surface of the second button has a second type of visual marking. The first type of visual marking is different from the second type of visual marking.

[0031] In some additional, alternative, or selectively cumulative embodiments, one of the first and second visual markers is centrally disposed on its respective contact surface, while the other of the first and second visual markers is disposed around the periphery of its respective contact surface.

[0032] In some additional, alternative, or selectively cumulative embodiments, at least one of the contact surfaces of the first button and the second button is provided as a single flexible cover. This single flexible cover allows the button interface to remain clean and hygienic. Furthermore, the single flexible cover protects the internal components of the intraoral scanner from dust and water.

[0033] In some additional, alternative, or selectively cumulative embodiments, a single flexible cover layer is made of an elastomer (e.g., silicone rubber).

[0034] In some additional, alternative, or selectively cumulative embodiments, a single flexible cover is disposed in one or more recesses on the outer surface of the scanner housing.

[0035] In some additional, alternative, or selectively cumulative embodiments, the contact surfaces of the first button and the second button are both provided as a single flexible overlay.

[0036] In some additional, alternative, or selectively cumulative embodiments, a single flexible overlay is made as a single piece and provides or defines both the contact surface of the first button and the contact surface of the second button.

[0037] In some additional, alternative, or selectively cumulative embodiments, the flexible overlay includes a separation region between the contact surfaces of the first button and the second button. The separation region may include a width narrower than the width of the contact surfaces of the first and second buttons. This allows buttons to be distinguished by tactile sensation.

[0038] In some additional, alternative, or selectively cumulative embodiments, one or both of the first and second buttons are press buttons.

[0039] In some additional, alternative, or selectively cumulative embodiments, one or both of the first and second buttons are touch buttons.

[0040] In some additional, alternative, or selectively cumulative embodiments, a touch button providing one or both of a first button and a second button is provided as one or more touch-sensitive areas on the outer surface of the scanner housing.

[0041] In some additional, alternative, or selectively cumulative embodiments, one of the first and second buttons is provided as a press button, while the other of the first and second buttons is provided as a touch button. This allows buttons to be distinguished by their tactile feel.

[0042] In some additional, alternative, or selectively accumulated embodiments, the intraoral scanner also includes an inertial measurement unit (IMU) for detecting movement of the intraoral scanner and generating movement data based on the detected movement.

[0043] In some additional, alternative, or selectively cumulative embodiments, the intraoral scanning system includes an external computing device and a display coupled to the external computing device.

[0044] In some additional, alternative, or selectively cumulative embodiments, the second button is configured to control one or more functions of an external computing device that can translate motion data into cursor movement on a display.

[0045] In some additional, alternative, or selectively cumulative embodiments, the external computing device is configured to convert the activation of the second button into a selection command of a function associated with the cursor position.

[0046] In some additional, alternative, or selectively cumulative embodiments, the external computing device is remotely located and the display is located locally, for example, in the same room as the intraoral scanner.

[0047] In another aspect of the invention, an intraoral scanning system is described. This intraoral scanning system includes an intraoral scanner for acquiring images of a dental object. The intraoral scanner includes a projector unit, a camera unit, and a button interface. The projector unit illuminates the dental object, and the camera unit is coupled to the projector unit and acquires images of the dental object. The projector unit and the camera unit are arranged inside a scanner housing. The button interface is arranged on the scanner housing. The button interface includes a first button and a second button. The first button has a contact surface with a first tactile characteristic. The first button is activated when a first activation weight is applied to the contact surface of the first button. The second button has a contact surface with a second tactile characteristic. The second button is activated when a second activation weight is applied to the contact surface of the second button. The different tactile characteristics and different activation weights allow the user of the intraoral scanner to distinguish the buttons by their tactile sensation.

[0048] In some additional, alternative, or selectively cumulative embodiments, the first activation weight is between 170 g and 270 g, preferably between 185 g and 255 g, and more preferably between 200 g and 240 g.

[0049] In some additional, alternative, or selectively cumulative embodiments, the second activation weight is between 120 g and 220 g, preferably between 135 g and 205 g, and more preferably between 150 g and 190 g.

[0050] In some additional, alternative, or selectively cumulative embodiments, the first activation weight is at least 10% heavier than the second activation weight, preferably 20% heavier, and more preferably 25% heavier.

[0051] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button includes a first outer contour and the contact surface of the second button includes a second outer contour. The first outer contour differs from the second outer contour. This allows the user of the intraoral scanner to distinguish the buttons by their tactile sensation.

[0052] In some additional, alternative, or selectively cumulative embodiments, one of the first and second outer contours is generally convex, while the other of the first and second outer contours is generally concave.

[0053] In some additional, alternative, or selectively cumulative embodiments, the first outer contour includes a recess centrally located on the contact surface of the first button, and the second outer contour includes a protrusion centrally located on the contact surface of the second button. This allows the user of the intraoral scanner to distinguish the buttons by their tactile sensation.

[0054] In some additional, alternative, or selectively cumulative embodiments, the contact surface of the first button has a first outer area, and the contact surface of the second button has a second outer area. The first outer area differs from the second outer area. This allows the user of the intraoral scanner to distinguish the buttons by their tactile sensation.

[0055] In some additional, alternative, or selectively cumulative embodiments, one of the first outer area and the second outer area is 20% to 60% larger than the other of the first outer area and the second outer area, preferably 30% to 50% larger, and more preferably 35% to 45% larger.

[0056] In some additional, alternative, or selectively cumulative embodiments, at least one of the contact surfaces of the first button and the second button is provided as a single flexible cover layer. The single flexible cover layer is made of an elastomer such as silicone rubber. The flexible cover layer allows the button interface to remain clean and hygienic.

[0057] In some additional, alternative, or selectively cumulative embodiments, a single flexible overlay is formed as a single piece and provides both the contact surfaces of the first button and the second button. The single flexible overlay includes a separation region between the contact surfaces of the first and second buttons, and the separation region has a width narrower than the width of the contact surfaces of the first and second buttons. This allows the user of the intraoral scanner to distinguish the buttons by touch.

[0058] In some additional, alternative, or selectively cumulative embodiments, one or both of the first and second buttons are touch buttons. A touch button, providing one or both of the first and second buttons, is provided as one or more touch-sensitive areas on the outer surface of the scanner housing.

[0059] In some additional, alternative, or selectively cumulative embodiments, one of the first and second buttons is provided as a press button, and the other of the first and second buttons is provided as a touch button. This allows the user of the intraoral scanner to distinguish the buttons by their tactile sensation.

[0060] In some additional, alternative, or selectively cumulative embodiments, the intraoral scanning system also includes an external computing device and a display coupled to the external computing device. A second button controls one or more functions of the external computing device.

[0061] In some additional, alternative, or selectively accumulated embodiments, the intraoral scanner includes an inertial measurement unit (IMU) for detecting movement of the intraoral scanner and generating movement data based on the detected movement. An external computing device translates the movement data into cursor movement generated on a display. The external computing device translates the activation of a second button into a selection command for a function associated with the current position of the cursor. Attached Figure Description

[0062] The above and other features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of exemplary embodiments and with reference to the accompanying drawings, wherein:

[0063] Figure 1 This is a view of a clinical dental setting according to an embodiment of the present invention;

[0064] Figure 2 According to embodiments of the present invention Figure 1 A block diagram of an intraoral scanning system used in clinical dental settings;

[0065] Figure 3 It is an intraoral scanner of an intraoral scanning system according to an embodiment of the present invention;

[0066] Figure 4 This is the button interface of an intraoral scanner according to an embodiment of the present invention;

[0067] Figure 5 This is an embodiment of the button interface of an intraoral scanner according to an embodiment of the present invention;

[0068] Figure 6 This is a cross-sectional view of the button interface according to an embodiment of the present invention;

[0069] Figure 7 This is an exploded view of the button interface of an intraoral scanner according to an embodiment of the present invention, which shows the components and details of the underlying circuitry associated with the button interface;

[0070] Figures 8A to 8F An exemplary embodiment of the button interface of an intraoral scanner according to an embodiment of the present invention is shown; and

[0071] Figures 9A to 9H A further exemplary embodiment of a button interface correspondingly mounted on the scanner housing of an intraoral scanner according to an embodiment of the present invention is shown. Detailed Implementation

[0072] Example embodiments are described below with reference to the accompanying drawings. Unless otherwise expressly stated in the drawings, the dimensions, positions, etc., of parts, features, elements, etc., and any distances between them are not necessarily proportional and may be disproportionate and / or exaggerated for clarity.

[0073] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a” and “an” as used herein also include the plural forms. It should be understood that, as used in this specification, the terms “comprising,” “including,” and / or “including” specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Unless otherwise stated, in a narrative, the range of values ​​includes the upper and lower limits of the range and any subranges in between. Unless otherwise stated, terms such as “first,” “second,” etc., are used only to distinguish one element from another. For example, one element may be referred to as “first element,” and similarly, another element may be referred to as “second element,” or vice versa. The section headings used herein are for organizational purposes only and should not be construed as limiting the described subject matter.

[0074] Unless otherwise indicated, the terms “approximately,” “roughly,” “approximately,” etc., mean that quantities, dimensions, formulations, parameters, and other quantities and characteristics are not and need not be precise, but may be approximate and / or larger or smaller as desired, reflecting tolerances, conversion factors, rounding, measurement errors, and other factors known to those skilled in the art.

[0075] For ease of description, this document may use spatial relative terms such as “right,” “left,” “down,” “below,” “lower,” “above,” and “above” to describe the relationship between one element or feature and another, as illustrated in the accompanying figures. It should be understood that spatial relative terms are intended to encompass different orientations beyond those depicted in the figures. For example, if an object in the figure is flipped, what is described as being “below” or “below” other elements or features would be oriented as being “above” other elements or features. Thus, the term “down” could, for example, include the vertical direction. Objects may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein may be interpreted accordingly.

[0076] Unless otherwise expressly stated, all connections and all operational connections may be direct or indirect. Similarly, unless otherwise expressly stated, all connections and all operational connections may be rigid or non-rigid.

[0077] The same numbers denote the same elements. Therefore, the same or similar numbers can be described with reference to other accompanying figures, even if they are neither mentioned nor described in the corresponding figures. Furthermore, elements not indicated by figure labels can be described with reference to other accompanying figures.

[0078] Many different forms and embodiments are possible without departing from the spirit and teachings of the invention, and therefore the invention should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that the invention will be thorough and complete, and will convey the scope of the invention to those skilled in the art.

[0079] In this specification, references to "an embodiment" or "an embodiment" mean that at least one embodiment of the invention includes a particular feature, structure, or characteristic described in connection with that embodiment. The phrase "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment, nor is it necessarily a single or alternative embodiment that is mutually exclusive with other embodiments.

[0080] refer to Figure 1 This describes a clinical dental facility (or simply facility 100). Facility 100 includes various devices. As an example, facility 100 includes an intraoral scanning system 102 with an intraoral scanner 104. Facility 100 accommodates a user 106 (e.g., a dentist) and a patient 110 to be examined by user 106. Figure 1 The illustration depicts user 106 performing an intraoral scan on patient 110. Additionally, location 100 includes various devices enabling the user to perform operations such as scanning and / or monitoring the oral cavity of patient 110 (referred to as an intraoral scan). The intraoral scanning system 102 may also include an external computing device 108 and a display coupled to the external computing device 108. The display may include a touchscreen display; however, other displays known now or developed in the future may also be used. In some embodiments, the external computing device 108 may be located remotely to location 100, and the display may be located locally to location 100, for example, in the same room as the intraoral scanner 104. The external computing device 108 may also include auxiliary devices such as a mouse, joystick, keyboard, etc.

[0081] External computing devices (e.g., servers, laptops, or desktops) can be configured to display a graphical user interface (GUI) via a monitor, which can show a real-time preview of a 3D model of the scan data collected so far during the scan and / or a real-time video feed of the current field of view of the intraoral scanner. The GUI can also display one or more menus or options for controlling the scanning and / or control-related processes associated with the external computing device. These menus or options can be activated using the intraoral scanner as a pointing device, i.e., by detecting the movement of the scanner using an inertial measurement unit. The user can then move a virtual selection tool (e.g., a cursor) in the GUI to the desired menu option or option by moving the scanner, and then select the desired menu option or option by pressing a button (e.g., a second button) on the button interface while simultaneously hovering the virtual selection tool over the desired menu option or option. For such operations, the button (e.g., the second button) intended for selecting the menu option or option has a lighter activation weight so that the user does not unintentionally move the virtual selection tool when applying force to the button to activate it.

[0082] refer to Figure 2 and Figure 3 The intraoral scanner 104 may include a camera unit 114, which can be used to acquire images of the dental object of the patient 110 and / or capture precise three-dimensional (3D) images or models of the patient's oral cavity. The dental object or the patient's oral cavity may include the patient's teeth, gums, and surrounding tissues. The captureable model can be used for many procedures of the patient 110, such as implant planning, orthodontics, prosthesis restoration, and dental restoration. The intraoral scanner 104 may also include a projector unit 112, a camera unit 114, a scanner housing 116, and a button interface 118. The button interface 118 may include a first button 120 and a second button 122. The first button 120 may also be a power button and / or a master button, which is used to activate (e.g., start scanning or power on) / deactivate (e.g., stop scanning or power off) the intraoral scanner 104.

[0083] The intraoral scanner 104 may also include a scanning head 216 and a body 218 extending away from the scanning head 216. Furthermore, the intraoral scanner 104 may include an inertial measurement unit (IMU) 212. The IMU 212 may be configured to detect movement of the intraoral scanner 104 and may also generate movement data based on the detected movement. Both the intraoral scanner 104 and the external computing device 108 may include corresponding processors and transceivers that allow communication between the intraoral scanner 104 and the external computing device 108. The intraoral scanner 104 may also include a battery 220 (see [link to battery description]). Figure 3 ).

[0084] Projector unit 112 is configured to illuminate a dental object. Projector unit 112 can be configured to project structured light or laser patterns onto the oral cavity of patient 110. Camera unit 114 can be coupled to projector unit 112 and configured to acquire or obtain images of the illuminated dental object of patient 110. Furthermore, projector unit 112 and camera unit 114 can be arranged inside scanner housing 116.

[0085] A button interface 118 may be disposed on the scanner housing 116, wherein the button interface 118 may include a first button 120 and a second button 122. As described above, the first button 120 may be an activation / power button and may be used, for example, to activate and deactivate the intraoral scanner 104. Conversely, the second button 122 may be configured to control one or more functions of the external computing device 108; as an example, the second button 122 may be used for interaction and / or selection commands on the display and / or external computing device 108.

[0086] The first button 120 may have a first contact surface 420 having a first tactile characteristic, and the first button 120 may be activated when a first activation weight (e.g., by pressing with a finger) is applied to the first contact surface 420. The second button 122 may have a second contact surface 422 having a second tactile characteristic, and the second button 122 may be activated when a second activation weight is applied to the second contact surface 422. The first tactile characteristic differs from the second tactile characteristic; furthermore, the first activation weight differs from the second activation weight. As an example, the first activation weight may be greater than the second activation weight. Applying a relatively high activation weight to the first button 120 prevents accidental activation / deactivation, while applying a relatively low activation weight to the second button 122 reduces the pressure required to use the second button 122, making it easier or less strenuous for the user 106 to use the second button once or repeatedly as needed. As an example, the function associated with a single touch or click of the second button 122 may differ from the function associated with two or more touches or clicks of the second button 122, and the relatively low activation weight that can be applied to the second button 122 reduces the pressure required to make such a touch or click. Furthermore, the different activation weights and different tactile characteristics allow the user of the intraoral scanner 104 to distinguish buttons 120 and 122 by their tactile sensation.

[0087] In some examples, the first activation weight can be between 170 g and 270 g, preferably between 185 g and 255 g, more preferably between 200 g and 240 g. The second activation weight can be between 120 g and 220 g, preferably between 135 g and 205 g, more preferably between 150 g and 190 g. In some embodiments, the first activation weight can be at least 10% heavier than the second activation weight, preferably 20% heavier, more preferably 25% heavier. These values ​​are provided for illustrative purposes only and other values ​​may be included.

[0088] refer to Figure 4 and Figure 5 In some embodiments, one or both of the first button 120 and the second button 122 may be a touch button, for example, a touch surface that detects a user's touch based on a capacitive sensor and / or a force sensor. To this end, one or both of the first button 120 and the second button 122 may include one or more touch-sensitive areas, such as on the outer surface of the first button 120 and the second button 122 (and / or the scanner housing 116). Furthermore, in some embodiments, one or both of the first button 120 and the second button 122 may include a press button. Additionally, in some embodiments, one of the first button 120 and the second button 122 may include a press button, while the other of the first button 120 and the second button 122 may include a touch button.

[0089] In some embodiments, a first contact surface 420 of a first button 120 has a first outer contour 320, and a second contact surface 422 of a second button 122 has a second outer contour 322. The first outer contour 320 may differ from the second outer contour 322. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other of the first outer contour 320 and the second outer contour 322 may be generally concave. The term “generally” as used herein or elsewhere refers to manufacturing tolerances. As an example, the first outer contour 320 may be concave, while the second outer contour 322 may be convex. The first outer contour 320 may include a recess 430 centrally disposed on the first contact surface 420 of the first button 120, and the second outer contour 322 may include a protrusion 432 disposed at the center of the second contact surface 422 of the second button 122. Furthermore, the first outer contour 320 may include a circumferential edge 324 surrounding the recess 430. The circumferential edge 324 may define a raised annular surface surrounding the recess 430. These features allow the user of the intraoral scanner 104 to distinguish the first button 120 from the second button 122 by touch.

[0090] As discussed herein, this difference in the contours, activation weight, and various other tactile characteristics of buttons 120, 122 allows users to distinguish buttons 120, 122 by touch (e.g., finger touch) without requiring user 106 to shift their eye position toward buttons 120, 122, thereby allowing user 106 to perform any activity (e.g., scanning or monitoring a patient's dental object or oral cavity 110 on the display 108 of an external computing device) without taking their gaze away from the activity.

[0091] In some embodiments, the first contact surface 420 of the first button 120 has a first outer area, and the second contact surface 422 of the second button 122 has a second outer area. The first outer area differs from the second outer area. This allows the user of the intraoral scanner 104 to distinguish the buttons 120 and 122 by touch. One of the first and second outer areas can be 20% to 60% larger than the other, preferably 30% to 50%, and more preferably 35% to 45%. As an example, the first outer area is larger than the second outer area. The first outer area can be 200 mm. 2 Up to 300 mm 2 Between, preferably 220mm 2 Up to 280mm 2 Between, more preferably at 240mm 2 Up to 260mm 2 Between. The second outer area can be 125mm². 2 Up to 225mm 2 Between, preferably 145mm 2 Up to 205mm 2 Between, more preferably at 165mm 2 Up to 185mm 2 Between. These values ​​are provided for illustrative purposes only, and other values ​​may be included.

[0092] Furthermore, in some embodiments, the first contact surface 420 of the first button 120 has a first shape, and the second contact surface 422 of the second button 122 has a second shape. The first shape may differ from the second shape. This allows buttons 120 and 122 to be distinguished by touch. One or both of the first and second shapes are generally circular. In some embodiments, buttons 120 and 122 may also have different dimensions so that buttons 120 and 122 can be distinguished by touch. In one example, the radius of the first outer shape is between 5 mm and 13 mm, preferably between 6 mm and 12 mm, and more preferably between 7 mm and 11 mm. The radius of the second outer shape is between 5.5 mm and 11.5 mm, preferably between 6.5 mm and 10.5 mm, and more preferably between 5.5 mm and 9.5 mm. These values ​​are provided for illustrative purposes only, and other values ​​may be included.

[0093] Note that throughout the text, the term "shape" refers to the shape when viewed along the button's activation direction—that is, the direction in which force must be applied to activate the button—while the term "profile" refers to the outline when viewed perpendicular to the button's activation direction. In other words, "shape" is used when viewing the button from above, and "profile" is used when viewing the button from the side.

[0094] In some examples, one of the first and second active regions may be 2 to 10 times larger than the other, preferably 4 to 8 times larger, and more preferably 5 to 7 times larger. As an example, the first active region may differ from the second active region; for example, the first active region may be larger than the second active region. These values ​​are provided for illustrative purposes only, and other values ​​may be included.

[0095] In some embodiments, at least one of the first contact surface 420 of the first button 120 and the second contact surface 422 of the second button 122 is provided as a single flexible cover layer 308 (see Figure 5 The single flexible cover layer 308 may be made of an elastomer (e.g., silicone rubber). Furthermore, the single flexible cover layer 308 may be integrally formed for both the first contact surface 420 of the first button 120 and the second contact surface 422 of the second button 122. In other words, both the first contact surface 420 of the first button 120 and the second contact surface 422 of the second button 122 may be provided or defined by the single flexible cover layer 308. In some embodiments, the single flexible cover layer 308 may be a thin layer (e.g., rubber or silicone) covering the electronics of the buttons 120, 122, and protecting the internal components of the intraoral scanner 104 from dust and water. The flexible cover layer 308 allows the button interface 118 to remain clean and hygienic, for example, by preventing any material from leaking into the scanner housing 116.

[0096] A single flexible cover layer 308 may include a separation region 310 between the first contact surface 420 of the first button 120 and the second contact surface 422 of the second button 122. The separation region 310 may include a width W (see...). Figure 8C and Figure 8F It is narrower than the width of the contact surfaces 420, 422 of the first button 120 and the second button 122 (for example, see...). Figure 8C and Figure 8F (Button interface 118 in the image). In some embodiments, a single flexible cover 308 may be disposed in one or more recesses on the outer surface of the scanner housing 116 such that the outer surface of the flexible cover 308 is substantially flush with the outer surface of the scanner housing 116. The separation area 310 may indicate the distinction between the first button 120 and the second button 122 by providing a tactilely and visually distinguishable area between the contact areas of the first button 120 and the second button 122.

[0097] See Figure 6 In some embodiments, the center of the first button 120 has a first height H1 above or below the outer surface of the scanner housing 116, and the center of the second button 122 has a second height H2 above or below the outer surface of the scanner housing 116. The first height H1 may be different from the second height H2 so that buttons 120 and 122 can be distinguished by touch. As an example, the first height H1 may be lower than the second height H2.

[0098] Furthermore, in some embodiments, the first contact surface 420 of the first button 120 has a first surface roughness, and the second contact surface 422 of the second button 122 has a second surface roughness. The first surface roughness may differ from the second surface roughness so that buttons 120 and 122 can be distinguished by touch. The center of the first button 120 and the center of the second button 122 may be spaced apart from each other (see distance S) by a value between 12 mm and 24 mm, preferably between 14 mm and 22 mm, and more preferably between 16 mm and 20 mm.

[0099] In some embodiments, the first contact surface 420 of the first button 120 has a first type of visual marking, and the second contact surface 422 of the second button 122 has a second type of visual marking. The first type of visual marking may be different from the second type of visual marking. One of the first and second visual markings may be centrally arranged on its respective contact surface, and the other of the first and second visual markings may be arranged around the perimeter of its respective contact surface. Visual markings may include any visually visible features, such as, but not limited to, images, marks, icons, embossing, engraving, words, letters, color markings, etc.

[0100] Figure 7 An exploded view of the button interface 118 of the intraoral scanner 104 is shown. As described above, the intraoral scanner 104 includes a scanner housing 116, which incorporates the button interface 118 including a first button 120 and a second button 122, recesses 430 and protrusions 432 in the first button 120 and the second button 122, and a single flexible cover layer 308. Furthermore, the intraoral scanner 104 may also include an adhesive material 402, a dome retainer 404, a metal dome 406, a spacer 408, circuitry 410, an adhesive 412, and a reinforcement 414.

[0101] The adhesive material 402 can be configured to bond a single flexible cover layer 308 to the body of the intraoral scanner 104. Furthermore, the adhesive material 402 can withstand exposure to heat, moisture, and chemical reagents (if any). The dome retainer 404 can be configured to hold the single flexible cover layer 308 in place and prevent misalignment or accidental displacement of the first contact surface 420 of the first button 120 and the second contact surface 422 of the second button 122. The metal dome 406 is a convex metal element configured to provide haptic feedback based on a responsive touch experience. The metal dome 406 below the first button 120 can at least partially define a first activation weight, i.e., the first activation weight can correspond to the weight required to press the metal dome 406 below the first button 120. The metal dome 406 below the second button 122 can at least partially define a second activation weight, i.e., the second activation weight can correspond to the weight required to press the metal dome 406 below the second button 122. The metal dome 406 below the first button 120 will require more pressure to press than the metal dome 406 below the second button 122.

[0102] Furthermore, the metal dome 406 can be configured to create an electrical connection to trigger a command. The spacer 408 can be a thin insulating layer between the metal dome 406 and the underlying circuitry 410. The circuitry 410 can be configured to detect touch and convert the touch into a signal through integration with the scanner's main processing unit. An adhesive 412 can be used to bond sensitive electronic components and ensure conductivity in the permanently insulated area. The reinforcement 414 can be a rigid support for reinforcing the flexible component. The reinforcement 414 can be manufactured using fiberglass and / or rigid plastic materials. Variations in this structure and arrangement will be apparent to those skilled in the art without departing from the claimed subject matter. Figure 7 The components of the intraoral scanner 104 described herein are exemplary, and in some embodiments, one or more of such components may be omitted. In some cases, additional components, which are now known or will be developed in the future, may be included within the intraoral scanner 104.

[0103] Figures 8A to 8F Several embodiments of the button interface 118 according to some embodiments of the present invention are shown. For convenience, similar reference numerals are used to denote the same or similar parts.

[0104] Figure 8A A button interface 118 is depicted, which may include a button layout with an inverted dome and may include a first button 120 and a second button 122. A single flexible cover layer 308 may include a straight structure 810 on either side of a separation region 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally disposed on a first contact surface 420 of the first button 120. A second outer contour 322 may include an inverted dome 826 located at the center of a second contact surface 422 of the second button 122. A protrusion 432 of the second button 122 may be in the form of a bump 432A. Although not limited to any structure or form, a bump 432A may correspond to a dome-shaped block that is structurally raised relative to the outer surface portion defined by the second outer contour 322. In some embodiments, a recessed region may surround the protrusion 432 or the bump 432A.

[0105] Figure 8BA button interface 118 is depicted, which may include a button layout having a first button 120 and a second button 122, and a single flexible cover layer 308 may include a linear structure (similar to linear structure 810) on either side of the separation region 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally located on the first contact surface 420 of the first button 120. A second outer contour 322 may include a protrusion 432 located at the center of the second contact surface 422 of the second button 122. The second outer contour 322 may be generally convex, while the first outer contour 320 may be generally concave.

[0106] Figure 8C A button interface 118 is depicted, which may include a flat button layout having a first button 120 and a second button 122, and a single flexible cover layer 308 may include a curved structure 870 on either side of the separation region 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally located on the first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of the second contact surface 422 of the second button 122.

[0107] Figure 8D A button interface 118 is depicted, which may include a button layout with a domed shape, the button layout including a first button 120 and a second button 122, and a single flexible cover layer 308 may include a straight structure (similar to a straight structure 810) located on either side of the separation area 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a dome 834 (similar to a dome 826) located at the center of a second contact surface 422 of the second button 122.

[0108] Figure 8E A button interface 118 is depicted, which may include a button layout including a first button 120 and a second button 122, and a single flexible cover layer 308 may include a linear structure (similar to linear structure 810) located on either side of a separation region 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a protrusion 432 portion located at the center of a second contact surface 422 of the second button 122. The second outer contour 322 may be generally convex, while the first outer contour 320 may be generally concave. In some embodiments, the recessed region may surround the protrusion 432.

[0109] Figure 8FA button interface 118 is depicted, which may include a flat button layout including a first button 120 and a second button 122, and a single flexible cover layer 308 may include a curved structure (similar to a curved structure 870) on either side of the separation region 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion 836 located at or arranged at the center of the second contact surface 422 of the second button 122.

[0110] Figures 9A to 9H The button interface 118 is shown (as is also shown). Figures 8A to 8F Various examples of different variations and embodiments of the intraoral scanner 104 (described herein) are presented. Various other such examples can be conceived and applied by those skilled in the art based on the invention without departing from the claimed subject matter. For convenience, similar reference numerals are used to denote the same or similar parts.

[0111] Figure 9A The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout including a first button 120 and a second button 122. A single flexible cover layer 308 may include a curved structure 932 (similar to a curved structure 870) located on either side of the separation region 310 of the button interface 118. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0112] Figure 9B The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout, including a first button 120 and a second button 122, and a single flexible cover layer 308 may include a slightly curved structure on either side of the separation region 310 of the button interface 118. Furthermore, the single flexible cover layer 308 may include an elongated portion 942 at the second button 122. A first outer contour 320 may include a centrally located recess 430 on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0113] Figure 9C The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout including a first button 120 and a second button 122, and a single flexible cover layer 308 may include a slightly curved structure on either side of the separation region 310 of the button interface 118. Furthermore, the single flexible cover layer 308 includes a slightly narrowed portion 952 near the second button 122. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0114] Figure 9D The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout including a first button 120 and a second button 122. A single flexible cover layer 308 may include a slightly curved structure 962 on either side of a separation region 310 of the button interface 118, and the area of ​​the first button 120 may be larger than the area of ​​the second button 122. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0115] Figure 9E The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout, including a first button 120 and a second button 122. A single flexible cover layer 308 may include a slightly curved structure 972 on either side of a separation region 310 of the button interface 118, and the area of ​​the first button 120 may be equal to the area of ​​the second button 122. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0116] Figure 9FThe depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout including a first button 120 and a second button 122. A single flexible cover layer 308 may include a slightly curved structure 982 on either side of a separation region 310 of the button interface 118, and the area of ​​the first button 120 may be wider than the area of ​​the second button 122. A first outer contour 320 may include a recess 430 centrally located on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0117] Figure 9G The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout including a first button 120 and a second button 122. A single flexible cover layer 308 may include a linear structure 992 on either side of a separation region 310 of the button interface 118, and the width of the first button 120 may be greater than the width of the second button 122. A first outer contour 320 may include a centrally located recess 430 on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0118] Figure 9H The depicted intraoral scanner 104 may include a button interface 118, which may include a flat button layout, including a first button 120 and a second button 122, and a single flexible cover layer 308 may include a linear structure 996 on either side of a separation region 310 of the button interface 118. A first outer contour 320 may include a centrally located recess 430 on a first contact surface 420 of the first button 120. A second outer contour 322 may include a flat portion located at the center of a second contact surface 422 of the second button 122. One of the first outer contour 320 and the second outer contour 322 may be generally convex, while the other may be generally concave.

[0119] During operation, user 106 can perform an oral scan of patient 110 by inserting the scanning head 216 of intraoral scanner 104 into the oral cavity of patient 110. The scanning process can be initiated by activating the first button 120 (e.g., by applying a first activation weight to the first contact surface 420 of the first button 120). Other functions associated with the process (e.g., feeding instructions to an external computing device 108) can be initiated by user 106 by activating the second button 122 (e.g., by applying a second activation weight to the second contact surface 422 of the second button 122). In other words, when user 106 applies the first activation weight to the first button 120, the scanning process can be initiated, and when user 106 applies the second activation weight to the second button 122, a pointer is activated. The pointer allows the scanning head 216 to navigate to several areas of the oral cavity, for example, at different angles, to capture dental objects.

[0120] According to an exemplary scanning procedure, user 106 can navigate intraoral scanner 104 in the oral cavity of patient 110 to capture three-dimensional (3D) images of intraoral scanner 104. As a result, the 3D geometry of the soft and hard tissues within the oral cavity can be replicated by intraoral scanner 104. A 3D scan of the patient's teeth or oral cavity can be generated on the display of external computing device 108. User 106 can adjust, refine, or rescan areas of the patient's oral cavity as needed. Subsequently, user 106 can press a second button 122 (also called a pointer button) to initiate pointer movement corresponding to the oral cavity. IMU 212 can detect the movement of intraoral scanner 104 and can generate movement data based on the detected movement. Furthermore, external computing device 108 can be configured to convert the movement data into movement of the cursor on the display of external computing device 108. Additionally, in some cases, external computing device 108 can be configured to convert activation of the second button 122 into a selection command for a function associated with the current or real-time position of the cursor. Once the analysis is complete, the scanning process can be terminated by user 106 applying (e.g., reapplying) a first activation weight to terminate the scanning process on the first button 120.

[0121] As described above, the relatively high activation weight available for the first button 120 prevents it from being accidentally activated, while the relatively low activation weight available for the second button 122 reduces the pressure required to activate it. This makes it easier or less effort for the user 106 to repeatedly use / activate the second button when needed. For example, the function associated with a single contact or single click of the second button 122 can differ from the function associated with two or more contact or clicks, or multiple contact or multiple clicks, thereby enhancing the versatility of the second button 122. This function can also correspond to one or more selection commands for one or more functions associated with the cursor position.

[0122] The different characteristics of the different contours of the first outer contour 320 and the second outer contour 322, as well as the various other different characteristics of the buttons 120, 122, allow users to distinguish the buttons 120, 122 by touch (e.g., touching the buttons 120, 122 with their fingers) without requiring the user 106 to shift their eye position toward the buttons 120, 122, thereby allowing the user 106 to perform any activity (e.g., scanning or monitoring the patient's dental object or oral cavity 110 on the display of the external computing device 108) without taking their gaze away from the activity.

[0123] It should be understood that the above description is merely an illustration of various aspects of the disclosed embodiments. Those skilled in the art can make various substitutions and modifications without departing from the various aspects of the disclosed embodiments.

[0124] The use of terms such as "first," "second," "third," "fourth," "primary," "secondary," and "tertiary" does not imply any specific order, but is included to identify individual elements. Furthermore, the use of these terms does not indicate any order or importance, but rather distinguishes one element from others. Note that the terms "first," "second," "third," "fourth," "primary," "secondary," and "tertiary" used in this document are for labelling purposes only and are not intended to indicate any specific spatial or temporal order. Additionally, labeling an element as "first" does not imply the existence of a second element, and vice versa.

[0125] It should be noted that the term "comprising" does not necessarily exclude the existence of other elements or steps besides those listed. It should also be noted that the term "an" or "a" preceding an element does not exclude the existence of multiple such elements.

[0126] It should also be noted that any reference numerals in the drawings do not limit the scope of the claims, exemplary embodiments may be implemented at least in part by both hardware and software, and several “apparatus”, “units” or “devices” may be represented by the same hardware.

[0127] It should be understood that references to "embodiment," "an embodiment," or "an aspect," or features included as "may," in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment of the invention. Furthermore, in one or more embodiments of the invention, specific features, structures, or characteristics may be suitably combined. The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the overall principles described herein can be applied to other aspects.

[0128] While embodiments and features have been shown and described, it should be understood that they are not intended to limit the claimed invention, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the claimed invention. Therefore, the specification and drawings are to be considered illustrative rather than restrictive. The claimed invention is intended to cover all alternatives, modifications, and equivalents.

Claims

1. An intraoral scanning system (102), comprising: An intraoral scanner (104) configured to acquire images of a tooth object, wherein the intraoral scanner (104) includes: Projector unit (112), which is configured to illuminate the tooth object, A camera unit (114), which is connected to the projector unit (112) and configured to acquire an image of the tooth object, A scanner housing (116), wherein the projector unit (112) and the camera unit (114) are arranged inside the scanner housing (116), and A button interface (118) is disposed on the scanner housing (112), wherein the button interface (118) includes: A first button (120) has a contact surface with a first tactile characteristic, wherein the first button (120) is configured to be activated when a first activation weight is applied to the contact surface of the first button (120), and A second button (122) has a contact surface with a second tactile characteristic, wherein the second button (122) is configured to be activated when a second activation weight is applied to the contact surface of the second button (122). The first activation weight is different from the second activation weight.

2. The intraoral scanning system (102) according to claim 1, characterized in that, The first tactile characteristic is different from the second tactile characteristic.

3. The intraoral scanning system (102) according to claim 2, characterized in that, The contact surface of the first button (120) has a first outer contour, the contact surface of the second button (122) has a second outer contour, and wherein the first outer contour is different from the second outer contour.

4. The intraoral scanning system (102) according to claim 3, characterized in that, One of the first outer contour and the second outer contour is generally convex, and the other of the first outer contour and the second outer contour is generally concave.

5. The intraoral scanning system (102) according to claim 3 or 4, characterized in that, The first outer contour includes a recess (430) centrally disposed on the contact surface of the first button (120), and the second outer contour includes a protrusion (432) centrally disposed on the contact surface of the second button (122).

6. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, The contact surface of the first button (120) has a first outer area, and the contact surface of the second button (122) has a second outer area, wherein the first outer area is different from the second outer area.

7. The intraoral scanning system (102) according to claim 6, characterized in that, One of the first outer area and the second outer area is 20% to 60% larger than the other of the first outer area and the second outer area, preferably 30% to 50% larger, and more preferably 35% to 45% larger.

8. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, The first activation weight is between 170 grams and 270 grams, preferably between 185 grams and 255 grams, and more preferably between 200 grams and 240 grams.

9. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, The second activation weight is between 120 grams and 220 grams, preferably between 135 grams and 205 grams, and more preferably between 150 grams and 190 grams.

10. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, The first activation weight is at least 10% heavier than the second activation weight, preferably 20% heavier, and more preferably 25% heavier.

11. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, At least one of the contact surface of the first button (120) and the contact surface of the second button (122) is provided as a single flexible cover layer (308), wherein the single flexible cover layer (308) is made of an elastomer, such as silicone rubber.

12. The intraoral scanning system (102) according to claim 11, characterized in that, The single flexible cover layer (308) is integrally formed and provides the contact surface of the first button (120) and the contact surface of the second button (120), wherein the single flexible cover layer (308) includes a separation region (310) between the contact surface of the first button (120) and the contact surface of the second button (120), and wherein the width of the separation region (310) is narrower than the width of the contact surfaces of both the first button (120) and the second button (120).

13. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, One or both of the first button (120) and the second button (122) are touch buttons, wherein the touch button, which provides one or both of the first button (120) and the second button (122), is provided as one or more touch-sensitive areas on the outer surface of the scanner housing (116).

14. The intraoral scanning system (102) according to claim 13, characterized in that, One of the first button (120) and the second button (122) is provided as a press button, and the other of the first button (120) and the second button (122) is provided as a touch button.

15. The intraoral scanning system (102) according to any one of the preceding claims, characterized in that, The intraoral scanning system (102) also includes: External computing device (108); and A display connected to the external computing device (108). The second button (122) is configured to control one or more functions of the external computing device (108).

16. The intraoral scanning system (102) according to claim 15, characterized in that, The intraoral scanner (104) also includes: An inertial measurement unit (IMU) (212) is configured to detect movement of the intraoral scanner (104) and generate movement data based on the detected movement. The external computing device (108) is configured to convert the movement data into cursor movement generated on the display, and the external computing device (108) is configured to convert the activation of the second button (120) into a selection command of a function associated with the current position of the cursor.

Images