Oral orthodontic anterior tooth conjunctive coverage measuring device
By designing a tooth probe device with adjustable length longitudinal measuring rod and transverse measuring rod, the problem that existing tooth probes cannot accurately measure the anterior teeth overlay distance and coverage distance is solved, achieving higher measurement accuracy and cost save.
Patent Information
- Application Number
- CN202420974224.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-06
AI Technical Summary
When measuring the anterior teeth covering distance and coverage distance, existing dental probes cannot accurately measure the length of the lower anterior teeth crown, resulting in large errors in the measurement results and the degree of deep coverage and deep coverage cannot be accurately judged at the same time.
A tooth probe device including a handle, a longitudinal measuring rod and a transverse measuring rod is designed. The length of the longitudinal measuring rod is adjustable. Through the coordination of the longitudinal sleeve and the cutting end hook rod, the lower front teeth crown length and overlay can be accurately measured. Distance, transverse measuring rods measure coverage distance, and use scales and color coatings to improve measurement accuracy.
It significantly improves the measurement accuracy of the coverage distance and coverage distance, and can measure both at once at the same time. It is suitable for different patients, accurately judges the degree of deep coverage and deep coverage, saving medical costs.
Smart Images
Figure CN222265462U_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of medical devices, and in particular relates to an orthodontic anterior teeth overbite and coverage measuring device. Background Art
[0002] Orthodontics refers to the correction of teeth, elimination of malocclusion and deformity. Deep overbite and deep overjet are the most common malocclusions in clinical practice and are common diseases in orthodontics. The methods for diagnosing deep overbite and deep overjet of anterior teeth mainly include general oral examination, occlusal relationship examination and radiographic examination; among them, general oral examination is mainly through visual examination to preliminarily determine whether there is deep overbite or deep overjet; occlusal relationship examination can use tools to roughly measure the overbite and coverage distance of the anterior teeth, determine whether there is deep overbite or deep overjet, and determine the degree of deep overbite and deep overjet; radiographic examination can more accurately diagnose the degree of deep overbite and deep overjet, but compared with general oral examination and occlusal relationship examination, it increases the patient's medical costs. Therefore, in the clinical diagnosis process of orthodontics, general oral examination and occlusal relationship examination are usually performed first.
[0003] When checking the occlusal relationship, an ordinary dental probe is usually used to measure the overbite distance (the vertical distance that the upper front teeth cover the lip surface of the lower front teeth when the teeth are normally occluded) and the overlap distance (the horizontal distance that the incisor tip of the upper front teeth exceeds the lip surface of the lower front teeth when the teeth are normally occluded). Although the existing ordinary dental probe can be used to measure the overbite distance, it is not specifically used to measure the overbite distance. It cannot accurately measure the crown length and overbite distance of the patient's lower front teeth, which also leads to a large error in the overbite distance measured by it. The measurement results are not accurate for judging whether there is a deep overbite and the degree of the deep overbite. Summary of the invention
[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide an oral orthodontic anterior teeth overbite and overlay measuring device, the measuring device comprises a dental probe body, the dental probe body is composed of a handle, a transverse measuring rod and a longitudinal measuring rod, the length of the longitudinal measuring rod is adjustable, the longitudinal measuring rod can be used to measure the crown length and overbite distance of the patient's lower anterior teeth, and is suitable for different patients, the transverse measuring rod can be used to measure the overlay distance, compared with the existing ordinary dental probe, the measuring device can be specifically used to measure the overbite distance and the overlay distance, and significantly improves the accuracy of the measurement results.
[0005] The present invention is achieved through the following technical solutions:
[0006] An orthodontic anterior teeth overbite measurement device comprises a dental probe body, wherein the dental probe body is composed of a handle, a transverse measuring rod and a longitudinal measuring rod;
[0007] The longitudinal measuring rod is composed of a longitudinal rod body, a longitudinal sleeve and a cut-end hook rod; the longitudinal sleeve is sleeved on the bottom of the longitudinal rod body, and the longitudinal sleeve can slide along the axial direction of the longitudinal rod body, and the longitudinal sleeve and the longitudinal rod body form a telescopic rod structure with adjustable length; the right end of the cut-end hook rod is connected to the top end of the longitudinal rod body, and the cut-end hook rod is perpendicular to the longitudinal rod body;
[0008] The left end of the transverse measuring rod is fixedly connected to the outer side wall of the longitudinal sleeve, and the right end of the transverse measuring rod is connected to the left end of the handle;
[0009] The outer side wall of the longitudinal rod body is provided with a plurality of first scales distributed at equal intervals from top to bottom along the axial direction thereof, the outer side wall of the longitudinal sleeve is provided with a plurality of second scales distributed at equal intervals from top to bottom along the axial direction thereof, and the outer side wall of the transverse measuring rod is provided with a plurality of third scales distributed at equal intervals from left to right along the axial direction thereof;
[0010] By moving the longitudinal sleeve along the axial direction of the longitudinal rod body, the measuring range of the longitudinal rod body and the longitudinal sleeve can be adjusted to be suitable for different patients. The longitudinal rod body and the longitudinal sleeve are used to measure the crown length of the lower anterior teeth and the vertical distance that the upper anterior teeth cover the lip surface of the lower anterior teeth (i.e., the overbite distance). The existence of a deep overbite and the degree of the deep overbite are determined based on the ratio of the measured overbite distance to the crown length of the lower anterior teeth. The transverse measuring rod is used to measure the horizontal distance (i.e., the overbite distance) that the incisal end of the upper anterior teeth exceeds the lip surface of the lower anterior teeth. The overbite distance and the overbite distance can be obtained based on the third scale on the transverse measuring rod directly below the incisal end of the upper anterior teeth. The overbite distance and the overbite distance can be measured at one time.
[0011] Furthermore, a downwardly inclined hook portion is provided at the left end of the incisal end hook rod; when measuring the overlay distance, the longitudinal rod body, the incisal end hook rod and the incisal end hook rod cooperate with each other, so that the incisal end hook rod can be hooked on the incisal end of the lower front teeth, which is convenient for operation and prevents the incisal end hook rod from detaching from the incisal end of the lower front teeth.
[0012] Furthermore, the longitudinal rod body is composed of an upper rod body, a middle rod body and a lower rod body, the middle rod body is connected between the upper rod body and the middle rod body, and the middle rod body is inclined downward, so that the lower rod body is located on the right side of the upper rod body; the longitudinal sleeve is sleeved on the lower rod body, and the inner wall of the longitudinal sleeve is provided with an elastic interlayer for fixing the lower rod body, and the elastic interlayer increases the friction resistance of the lower rod body through the elastic interlayer to avoid natural slippage between the longitudinal sleeve and the lower rod body, and a certain axial external force needs to be applied to cause relative axial movement between the longitudinal sleeve and the lower rod body; the lower rod body is biased to the right side of the upper rod body, and when the upper rod body is close to the lip surface of the lower front teeth, the left side of the longitudinal sleeve contacts the lip surface of the lower front teeth or has a certain distance from the lip surface of the lower front teeth, so that the longitudinal sleeve and the lip surface of the lower front teeth are abutted, resulting in the upper rod body being unable to fit the lip surface of the lower front teeth.
[0013] Furthermore, the first scale, the second scale and the third scale are any one of an annular groove and an annular boss; for example, the first scale is an annular groove opened on the outer wall of the longitudinal rod body, the second scale is an annular groove opened on the outer wall of the longitudinal sleeve, and the third scale is an annular groove opened on the outer wall of the transverse measuring rod.
[0014] Furthermore, the axial spacing between two adjacent first scales, between two adjacent second scales, and between two adjacent third scales is 0.5 mm or 1 mm, and the corresponding measurement length can be obtained according to the number of read scales.
[0015] Furthermore, both sides of each first scale of the outer side wall of the longitudinal rod body are provided with color coatings, and the colors of the color coatings on the outer side wall of the longitudinal rod body are different from each other;
[0016] Color coatings are provided on both sides of each second scale of the outer wall of the longitudinal sleeve, and the colors of the color coatings on the outer wall of the longitudinal sleeve are different from each other;
[0017] Both sides of each third scale of the outer wall of the transverse measuring rod are provided with color coatings, and the colors of the color coatings on the outer wall of the transverse measuring rod are different from each other;
[0018] Specifically, the colors of the color coatings on the outer wall of the longitudinal rod from top to bottom are arranged in a cycle in the order of red, orange, yellow, green, cyan, blue, and purple; the colors of the color coatings on the outer wall of the longitudinal sleeve from top to bottom are arranged in a cycle in the order of red, orange, yellow, green, cyan, blue, and purple; the colors of the color coatings on the outer wall of the transverse measuring rod from left to right are arranged in a cycle in the order of red, orange, yellow, green, cyan, blue, and purple; when reading the measurement data, the measured length is corresponded by the color of the color coating. For example, when the axial spacing between adjacent scales is 1mm, on the longitudinal rod, from top to bottom, the first red color coating corresponds to a measurement reading of 0 to 1mm, and the first yellow color coating corresponds to a measurement reading of 2 to 3mm. The scale values are clearer when corresponding to the color coating.
[0019] Furthermore, a cursor is slidably arranged on the transverse measuring rod, and the cursor is composed of a sleeve slidably mounted on the transverse measuring rod and a scale arranged on the outer wall of the top of the sleeve, and the sleeve can move axially on the transverse measuring rod; specifically, the left end face of the sleeve is flush with the left wall face of the scale, and when measuring the covering distance, the sleeve is moved axially along the transverse measuring rod, and the scale is moved to the cutting end of the upper front teeth, and the spacing between the left end face of the sleeve and the lip face of the lower front teeth is the covering distance, and the length value is obtained by reading the number of third scales on the left side of the sleeve on the transverse measuring rod; using the cursor for positioning can facilitate improving the measurement accuracy of the covering distance. If there is no cursor, the cutting end of the upper front teeth is not easy to correspond to the third scale on the transverse measuring rod, and reading deviation is prone to occur.
[0020] Furthermore, the cross-section of the longitudinal rod body and the cross-section of the longitudinal sleeve are both circular or square; the cross-section of the transverse measuring rod and the cross-section of the sliding sleeve are both circular or square.
[0021] Furthermore, the right end of the transverse measuring rod is detachably connected to the left end of the handle, the transverse measuring rod and the longitudinal measuring rod are disposable, and the handle is reusable, which can save costs.
[0022] Furthermore, the handle is composed of a handle body, a joint and an elastic splint; a socket is provided at the left end of the handle body, and the socket is composed of a threaded hole section, a conical hole section and a circular hole section from left to right; the joint is a hollow T-shaped sleeve structure, the right end of the joint can be inserted into the socket at the left end of the handle body, and the right end of the joint is threadedly connected to the left end of the handle body, specifically, an outer wall of the right end of the joint is provided with an external thread; a plurality of elastic splints are provided on the right end face of the joint, and the plurality of elastic splints are centered on the central axis of the joint. The centers are evenly distributed in a circular ring shape, and the right end of the transverse measuring rod can pass through the joint and into the insertion hole of the handle rod body. When the right end of the joint is threadedly connected to the left end of the handle rod body, the inner wall of the tapered hole section of the insertion hole in the handle rod body squeezes each elastic clamp so that each elastic clamp clamps the right end of the transverse measuring rod, thereby fixing the transverse measuring rod and the handle. After the handle rod body and the joint are separated, each elastic clamp expands outward to release the clamping constraint on the right end of the transverse measuring rod, so that the transverse measuring rod can be pulled out of the joint.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] The measuring device can be used for occlusal relationship inspection and measurement of overbite distance and coverage distance in the oral department. When measuring the overbite distance and coverage distance, the doctor holds the handle to extend the longitudinal measuring rod into the patient's mouth, hangs the incisal end hook rod on the incisal end of the lower front teeth, and the longitudinal rod body rests on the lip surface of the lower front teeth. The longitudinal sleeve is moved along the axial direction of the longitudinal rod body to adjust the measuring range of the longitudinal rod body and the longitudinal sleeve. The device can be used to measure the crowns of lower front teeth of different lengths and is suitable for different patients. The longitudinal rod body and the longitudinal sleeve are used to measure the length of the crowns of the lower front teeth and the length of the upper front teeth covering the lips of the lower front teeth. The vertical distance between the upper front teeth and the lip surface (i.e., the overbite distance) is measured, and the ratio of the overbite distance measured to the crown length of the lower front teeth is used to judge whether there is a deep overbite and the degree of the deep overbite. The horizontal distance (i.e., the coverage distance) where the incisor tip of the upper front teeth exceeds the lip surface of the lower front teeth is measured using a transverse measuring rod. The coverage distance is obtained based on the third scale on the transverse measuring rod just below the incisor tip of the upper front teeth. The overbite distance and the coverage distance can be measured at the same time. Compared with existing ordinary dental probes, this measuring device is specially used to measure the overbite distance and the coverage distance, and can significantly improve the accuracy of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention.
[0026] Figure 2 It is a schematic diagram of the explosion structure of the present invention.
[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.
[0028] Figure 4 for Figure 3 A schematic diagram of the enlarged local structure in the middle.
[0029] Figure 5 for Figure 3 Enlarged schematic diagram of the local structure at point B in the middle.
[0030] Figure 6 It is a schematic diagram of the structure of the present invention in use state.
[0031] The names of the components in the figure are: 1, handle 1.1, handle rod body 1.2, joint 1.3, elastic splint 2, transverse measuring rod 3, longitudinal measuring rod 3.1, longitudinal rod body 3.1.1, upper rod body 3.1.2, middle rod body 3.1.3, lower rod body 3.2, longitudinal sleeve 3.3, cutting end hook rod 3.4, hook part 4, first scale 5, second scale 6, third scale 7, cursor 7.1, sliding sleeve 7.2, ruler 8, elastic interlayer 9, retaining ring 10, upper front teeth 11, lower front teeth. DETAILED DESCRIPTION
[0032] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
[0033] An orthodontic anterior teeth overbite measurement device, such as Figures 1 to 3 As shown, it includes a dental probe body, which is composed of a handle 1, a transverse measuring rod 2 and a longitudinal measuring rod 3; the longitudinal measuring rod 3 is composed of a longitudinal rod body 3.1, a longitudinal sleeve 3.2 and an incisional end hook rod 3.3; Figure 3 and Figure 4 As shown, the longitudinal rod body 3.1 is composed of an upper rod body 3.1.1, a middle rod body 3.1.2 and a lower rod body 3.1.3, the middle rod body 3.1.2 is connected between the upper rod body 3.1.1 and the middle rod body 3.1.2, and the middle rod body 3.1.2 is tilted downward, so that the lower rod body 3.1.3 is located on the right side of the upper rod body 3.1.1;
[0034] like Figures 1 to 4As shown, the longitudinal sleeve 3.2 is sleeved on the lower rod body 3.1.3 of the longitudinal rod body 3.1, and the longitudinal sleeve 3.2 can slide along the axial direction of the longitudinal rod body 3.1, and the longitudinal sleeve 3.2 and the longitudinal rod body 3.1 form a telescopic rod structure with adjustable length; the inner side wall of the longitudinal sleeve 3.2 is provided with an elastic interlayer 8 for fixing the lower rod body 3.1.3, and the elastic interlayer 8 increases the friction resistance of the lower rod body 3.1.3 to avoid the natural slip between the longitudinal sleeve 3.2 and the lower rod body 3.1.3, and a certain axial external force needs to be applied to make the longitudinal sleeve 3.2 and the lower rod body 3.1.3 relative to each other along the axial direction;
[0035] The right end of the cut end hook rod 3.3 is connected to the top of the upper rod body 3.1.1 of the longitudinal rod body 3.1, and the cut end hook rod 3.3 is perpendicular to the upper rod body 3.1.1 of the longitudinal rod body 3.1;
[0036] The left end of the transverse measuring rod 2 is fixedly connected to the outer side wall of the lower rod body 3.1.3 of the longitudinal sleeve 3.2, and the right end thereof is connected to the left end of the handle 1;
[0037] like Figures 1 to 4 As shown, the outer wall of the longitudinal rod body 3.1 is provided with a plurality of annular groove-shaped first scales 4 which are evenly spaced from top to bottom along the axial direction thereof, the outer wall of the longitudinal sleeve 3.2 is provided with a plurality of annular groove-shaped second scales 5 which are evenly spaced from top to bottom along the axial direction thereof, and the outer wall of the transverse measuring rod 2 is provided with a plurality of annular groove-shaped third scales 6 which are evenly spaced from left to right along the axial direction thereof; in addition, the first scale 4, the second scale 5 and the third scale 6 can also be annular boss-shaped; the axial spacing between two adjacent first scales 4, between two adjacent second scales 5 and between two adjacent third scales 6 is 1 mm, and the corresponding measuring length can be obtained according to the number of scales read; in addition, the axial spacing between two adjacent first scales 4, between two adjacent second scales 5 and between two adjacent third scales 6 can also be 0.5 mm;
[0038] like Figures 1 to 3As shown, a cursor 7 is slidably arranged on the transverse measuring rod 2, and the cursor 7 is composed of a sleeve 7.1 slidably mounted on the transverse measuring rod 2 and a scale 7.2 arranged on the outer side wall of the top of the sleeve 7.1. The sleeve 7.1 can move axially on the transverse measuring rod 2; specifically, the left end face of the sleeve 7.1 is flush with the left wall face of the scale 7.2. When measuring the covering distance, the sleeve 7.1 is moved axially along the transverse measuring rod 2, and the scale 7.2 is moved to the incisal end of the upper front teeth 10. The spacing between the left end face of the sleeve 7.1 and the lip surface of the lower front teeth 11 is the covering distance, and the length value is obtained by reading the third scale 6 numbers on the left side of the sleeve 7.1 on the transverse measuring rod 2; using the cursor 7 for positioning can improve the measurement accuracy of the covering distance. If there is no cursor 7, the incisal end of the upper front teeth 10 is not convenient to correspond to the third scale 6 on the transverse measuring rod 2, and reading deviation is prone to occur.
[0039] As a preferred embodiment, in this embodiment, Figures 1 to 3 As shown, the left end of the incisal end hook rod 3.3 is provided with a downwardly inclined hook portion 3.4; when measuring the overlap distance, the longitudinal rod body 3.1, the incisal end hook rod 3.3 and the incisal end hook rod 3.3 cooperate with each other, and the incisal end hook rod 3.3 can be hooked on the incisal end of the lower front teeth 11, which is easy to operate and prevents the incisal end hook rod 3.3 from detaching from the incisal end of the lower front teeth 11.
[0040] As a preferred embodiment, in this embodiment, in order to avoid rotation between the longitudinal sleeve 3.2 and the longitudinal rod body 3.1, the inner side wall of the longitudinal sleeve 3.2 and the outer side wall of the lower section rod body 3.1.3 of the longitudinal rod body 3.1 can be guided by setting a sliding groove and a slider extending along the axial direction. Specifically, a sliding groove or a slider can be set on the inner side wall of the longitudinal sleeve 3.2, and a slider that slides with the sliding groove of the inner side wall of the longitudinal sleeve 3.2 or a sliding groove that slides with the slider of the inner side wall of the longitudinal sleeve 3.2 can be set on the outer side wall of the lower section rod body 3.1.3 of the longitudinal rod body 3.1.
[0041] As a preferred embodiment, in this embodiment, Figure 4 As shown, the channel inside the longitudinal sleeve 3.2 is composed of two sections of channels with different apertures, and the aperture of the upper section of the channel is smaller than the aperture of the lower section of the channel, forming a step surface, and the elastic interlayer 8 is fixed to the inner wall of the upper section of the channel, and a circular baffle is provided at the bottom end of the lower section rod body 3.1.3, and the outer wall of the circular baffle is gap-matched with the inner wall of the lower section of the channel and is slidably connected; the above structure can prevent the longitudinal sleeve 3.2 from falling off from the lower section rod body 3.1.3 when sliding to adjust the length.
[0042] As a preferred embodiment, in this embodiment, both sides of each first scale 4 of the outer wall of the longitudinal rod body 3.1 are provided with color coatings, and the colors of the color coatings on the outer wall of the longitudinal rod body 3.1 are different from each other;
[0043] Both sides of each second scale 5 of the outer wall of the longitudinal sleeve 3.2 are provided with color coatings, and the colors of the color coatings on the outer wall of the longitudinal sleeve 3.2 are different from each other;
[0044] Both sides of each third scale 6 of the outer wall of the transverse measuring rod 2 are provided with color coatings, and the colors of the color coatings on the outer wall of the transverse measuring rod 2 are different from each other;
[0045] Specifically, the colors of the color coatings on the outer wall of the longitudinal rod body 3.1 from top to bottom are arranged in a circular sequence according to the order of red, orange, yellow, green, cyan, blue, and purple; the colors of the color coatings on the outer wall of the longitudinal sleeve 3.2 from top to bottom are arranged in a circular sequence according to the order of red, orange, yellow, green, cyan, blue, and purple; the colors of the color coatings on the outer wall of the transverse measuring rod 2 from left to right are arranged in a circular sequence according to the order of red, orange, yellow, green, cyan, blue, and purple; when reading the measurement data, the color of the color coating corresponds to the measured length, for example, when the axial spacing between adjacent scales is 1 mm, on the longitudinal rod body 3.1, from top to bottom, the first red color coating corresponds to a measurement reading of 0 to 1 mm, and the first yellow color coating corresponds to a measurement reading of 2 to 3 mm;
[0046] In addition, scale values can also be marked on one side of the first scale 4 on the longitudinal rod body 3.1, on one side of the second scale 5 on the longitudinal sleeve 3.2, and on one side of the third scale 6 on the transverse measuring rod 2. The scale values can be directly read when measuring distance. However, the diameters of the longitudinal measuring rod 3 and the transverse measuring rod 2 are small, and the marked scale values may not be clear. It is clearer to correspond the scale values through color coating.
[0047] As a preferred implementation, in this embodiment, the cross-sections of the longitudinal rod body 3.1, the longitudinal sleeve 3.2, the transverse measuring rod 2 and the sliding sleeve 7.1 are all circular; in addition, they may also be square.
[0048] As a preferred embodiment, in this embodiment, Figures 1 to 3 as well as Figure 5As shown, the right end of the transverse measuring rod 2 is detachably connected to the left end of the handle 1, the transverse measuring rod 2 and the longitudinal measuring rod 3 are disposable, and the handle 1 is reusable, which can save costs; the handle 1 is composed of a handle rod body 1.1, a joint 1.2 and an elastic splint 1.3; a socket is provided at the left end of the handle rod body 1.1, and the socket is composed of a threaded hole section, a conical hole section and a circular hole section from left to right; the joint 1.2 is a hollow T-shaped sleeve structure, the right end of the joint 1.2 can be inserted into the socket at the left end of the handle rod body 1.1, and the right end of the joint 1.2 is threadedly connected to the left end of the handle rod body 1.1, specifically, an outer wall of the right end of the joint 1.2 is provided with an external thread; a plurality of The elastic splint 1.3, and multiple elastic splints 1.3 are evenly distributed in a circular ring shape with the central axis of the joint 1.2 as the center. The right end of the transverse measuring rod 2 can pass through the joint 1.2 and penetrate into the insertion hole of the handle rod body 1.1. When the right end of the joint 1.2 is threadedly connected with the left end of the handle rod body 1.1, the inner side wall of the tapered hole section of the insertion hole in the handle rod body 1.1 squeezes each elastic splint 1.3 so that each elastic splint 1.3 clamps the right end of the transverse measuring rod 2, thereby fixing the transverse measuring rod 2 to the handle 1. After the handle rod body 1.1 and the joint 1.2 are separated, each elastic splint 1.3 expands outward to release the clamping constraint on the right end of the transverse measuring rod 2, so that the transverse measuring rod 2 can be drawn out from the joint 1.2;
[0049] In addition, the right end of the transverse measuring rod 2 can also be connected to the handle 1 by a thread, but it is inconvenient to open an external thread on the right end of the transverse measuring rod 2 with a smaller diameter, and each disposable transverse measuring rod 2 needs to have an external thread on the right end, which complicates the production process and has a high processing cost.
[0050] As a preferred implementation, in this embodiment, a retaining ring 9 is fixed to the outer wall of the right end of the transverse measuring rod 2, and a mounting hole for the retaining ring 9 to pass through is opened on the left end face of the joint 1.2, so that when the right end of the transverse measuring rod 2 is connected to the handle 1, it is convenient to position it through the retaining ring 9.
[0051] The working principle and technical effects of this embodiment are as follows:
[0052] When measuring the overbite and overlap distance during occlusal examination, Figure 6As shown, a disposable assembly of the transverse measuring rod 2 and the longitudinal measuring rod 3 is installed on the handle 1. The patient opens his mouth, and the doctor holds the handle 1 to hook the incisal end hook rod 3.3 on the incisal end of the patient's lower front teeth 11, so that the upper rod body 3.1.1 of the longitudinal rod body 3.1 fits the labial surface of the lower front teeth 11, and the patient closes his mouth and bites his teeth (it should be noted that the outer diameters of the upper rod body 3.1.1 and the incisal end hook rod 3.3 are relatively thin, not more than 0.5mm, so when the teeth are normally occluded, the influence of the upper rod body 3.1.1 and the incisal end hook rod 3.3 between the upper front teeth 10 and the lower front teeth 11 on the measurement results can be ignored);
[0053] The doctor slides and adjusts the longitudinal sleeve 3.2 according to the length of the crown of the patient's lower front teeth 11. Specifically, if the bottom end of the longitudinal sleeve 3.2 is located on the upper side of the bottom edge of the crown of the lower front teeth 11, the longitudinal rod body 3.1 and the longitudinal sleeve 3.2 cannot measure the length of the crown of the lower front teeth 11. At this time, the longitudinal sleeve 3.2 needs to be moved downward to ensure that the bottom edge of the crown of the lower front teeth 11 is located within the measuring range of the second scale 5 on the longitudinal sleeve 3.2. Of course, the bottom end of the longitudinal sleeve 3.2 cannot be too much lower than the bottom edge of the crown of the lower front teeth 11 to avoid conflict with the jawbone. Different patients have different lengths of the crown of the lower front teeth 11. In this embodiment, the longitudinal sleeve 3.2 and the longitudinal rod body 3.1 form a telescopic rod structure with adjustable length, which can be used to measure the crowns of lower front teeth 11 of different lengths.
[0054] The crown length of the lower front teeth 11 is obtained according to the first scale 4 on the longitudinal rod 3.1 and the second scale 5 on the longitudinal sleeve 3.2, and the overbite distance is obtained according to the first scale 4 on the longitudinal rod 3.1 horizontally opposite to the incisal edge of the upper front teeth 10; the sliding cursor 7 is moved to the incisal end of the upper front teeth 10 by moving the scale 7.2 to the incisal end of the upper front teeth 10, and the covering distance is obtained according to the third scale 6 on the left side of the sliding sleeve 7.1 on the transverse measuring rod 2;
[0055] The degree of deep overbite is determined by the ratio of the overbite distance to the crown length of the lower anterior teeth 11. When the ratio is between 1 / 3 and 1 / 2, it is a mild deep overbite; when the ratio is between 1 / 2 and 2 / 3, it is a moderate deep overbite; when the ratio is greater than 2 / 3, it is a severe deep overbite; the degree of deep overbite is determined by the overlay distance. When the overlay distance is 3 to 5 mm, it is degree I deep overlay; when the overlay distance is 5 to 7 mm, it is degree II deep overlay; when the overlay distance is greater than 7 mm, it is degree III deep overlay;
[0056] The overbite and overlay measuring device can measure the crown length and overbite distance of the patient's lower front teeth 11 by using the longitudinal measuring rod 3, and can measure the overlay distance by using the transverse measuring rod 2. The overbite and overlay distance can be measured simultaneously. Compared with the existing ordinary dental probe, the overbite and overlay measuring device is specially used to measure the overbite and overlay distance, and can significantly improve the accuracy of the measurement result; the transverse measuring rod 2 and the longitudinal measuring rod 3 are disposable, and the handle 1 is reusable. The transverse measuring rod 2 and the longitudinal measuring rod 3 can be made of metal material or plastic, which is safe and hygienic and can help save costs.
Claims
1. An orthodontic anterior teeth overbite and overjet measuring device, comprising a dental probe body, characterized in that: The dental probe body is composed of a handle (1), a transverse measuring rod (2) and a longitudinal measuring rod (3); The longitudinal measuring rod (3) is composed of a longitudinal rod body (3.1), a longitudinal sleeve (3.2) and a cut-end hook rod (3.3); the longitudinal sleeve (3.2) is sleeved on the bottom of the longitudinal rod body (3.1), and the longitudinal sleeve (3.2) can slide along the axial direction of the longitudinal rod body (3.1), and the longitudinal sleeve (3.2) and the longitudinal rod body (3.1) form a telescopic rod structure with adjustable length; the right end of the cut-end hook rod (3.3) is connected to the top end of the longitudinal rod body (3.1), and the cut-end hook rod (3.3) is perpendicular to the longitudinal rod body (3.1); The left end of the transverse measuring rod (2) is fixedly connected to the outer side wall of the longitudinal sleeve (3.2), and the right end of the transverse measuring rod (2) is connected to the left end of the handle (1); The outer side wall of the longitudinal rod body (3.1) is provided with a plurality of first scales (4) distributed at equal intervals from top to bottom along its axial direction, the outer side wall of the longitudinal sleeve (3.2) is provided with a plurality of second scales (5) distributed at equal intervals from top to bottom along its axial direction, and the outer side wall of the transverse measuring rod (2) is provided with a plurality of third scales (6) distributed at equal intervals from left to right along its axial direction.
2. The orthodontic anterior teeth overbite and overjet measuring device according to claim 1, characterized in that: The left end of the cut-end hooking rod (3.3) is provided with a hooking portion (3.4) inclined downward.
3. The orthodontic anterior teeth overbite and overjet measuring device according to claim 1, characterized in that: The longitudinal rod body (3.1) is composed of an upper rod body (3.1.1), a middle rod body (3.1.2) and a lower rod body (3.1.3); the middle rod body (3.1.2) is connected between the upper rod body (3.1.1) and the middle rod body (3.1.2), and the middle rod body (3.1.2) is inclined downward so that the lower rod body (3.1.3) is located on the right side of the upper rod body (3.1.1); the longitudinal sleeve (3.2) is sleeved on the lower rod body (3.1.3), and the inner side wall of the longitudinal sleeve (3.2) is provided with an elastic interlayer (8) for fixing the lower rod body (3.1.3).
4. The orthodontic anterior teeth overbite and overjet measuring device according to claim 1, characterized in that: The first scale (4), the second scale (5) and the third scale (6) are any one of an annular groove and an annular boss.
5. The orthodontic anterior teeth overbite and overjet measuring device according to claim 3, characterized in that: The axial spacing between two adjacent first scales (4), between two adjacent second scales (5), and between two adjacent third scales (6) is 0.5 mm or 1 mm.
6. The orthodontic anterior teeth overbite and overjet measuring device according to claim 4 or 5, characterized in that: Both sides of each first scale (4) on the outer side wall of the longitudinal rod body (3.1) are provided with a color coating, and the colors of the color coatings on the outer side wall of the longitudinal rod body (3.1) are different from each other; Both sides of each second scale (5) on the outer wall of the longitudinal sleeve (3.2) are provided with a color coating, and the colors of the color coatings on the outer wall of the longitudinal sleeve (3.2) are different from each other; Color coatings are provided on both sides of each third scale (6) on the outer side wall of the transverse measuring rod (2), and the colors of the color coatings on the outer side wall of the transverse measuring rod (2) are different from each other.
7. The orthodontic anterior teeth overbite and overjet measuring device according to claim 1, characterized in that: A cursor (7) is slidably arranged on the transverse measuring rod (2), the cursor (7) comprising a sliding sleeve (7.1) slidably mounted on the transverse measuring rod (2) and a scale (7.2) arranged on the top outer side wall of the sliding sleeve (7.1), and the sliding sleeve (7.1) is movable along the axial direction on the transverse measuring rod (2).
8. The orthodontic anterior teeth overbite and overjet measuring device according to claim 1, characterized in that: The cross-section of the longitudinal rod body (3.1) and the cross-section of the longitudinal sleeve (3.2) are both circular or square.
9. The orthodontic anterior teeth overbite and overjet measuring device according to claim 8, characterized in that: The cross-sections of the transverse measuring rod (2) and the sliding sleeve (7.1) are both circular or square.
10. The orthodontic anterior teeth overbite and overjet measuring device according to claim 1, characterized in that: The right end of the transverse measuring rod (2) is detachably connected to the left end of the handle (1); the transverse measuring rod (2) and the longitudinal measuring rod (3) are disposable, and the handle (1) is reusable.
11. The orthodontic anterior teeth overbite and overjet measuring device according to claim 10, characterized in that: The handle (1) is composed of a handle body (1.1), a joint (1.2) and an elastic clamp (1.3); a socket is provided at the left end of the handle body (1.1), and the socket is composed of a threaded hole section, a conical hole section and a circular hole section from left to right; the joint (1.2) is a hollow T-shaped sleeve structure, the right end of the joint (1.2) can be inserted into the socket at the left end of the handle body (1.1), and the right end of the joint (1.2) is threadedly connected to the left end of the handle body (1.1); a plurality of The plurality of elastic clamps (1.3) are evenly distributed in a circular ring shape with the central axis of the joint (1.2) as the center. The right end of the transverse measuring rod (2) can pass through the joint (1.2) and penetrate into the insertion hole of the handle rod body (1.1). When the right end of the joint (1.2) is threadedly connected with the left end of the handle rod body (1.1), the inner side wall of the tapered hole section of the insertion hole in the handle rod body (1.1) squeezes each elastic clamp (1.3) so that each elastic clamp (1.3) clamps the right end of the transverse measuring rod (2).
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CN121163618A