Device and method for measuring odontoprisis gap

Abstract

The device comprises a holding part, a measuring part and a positioning part, the measuring part comprises a first measuring part and a second measuring part, the first measuring part is in an L shape, one end of the first measuring part is connected with the holding part, the other end of the first measuring part is of a U-shaped forked structure, one end of the positioning part is arranged on the U-shaped forked structure in a sliding and sleeving mode, and the other end of the positioning part is connected with the holding part. The positioning part is provided with a positioning body, the positioning body is used for being in contact with a reference adjacent tooth during measurement, the U-shaped bifurcated structure is provided with scales so as to measure the position of the positioning part on the first measuring part, the second measuring part is used for being inserted into the U-shaped bifurcated structure during measurement, and the scales are arranged on the second measuring part so as to measure the position of the positioning part on the second measuring part. Therefore, the nearest position of the first measuring part to the jaw dentition is measured. According to the invention, the distance between the gingiva at the anterior tooth missing tooth space and the reference position can be measured by referring to the position of the cutting end or the tooth tip of the adjacent tooth, the starting and ending points of the measurement are defined in the anterior tooth space in the inclined axial direction, and the accuracy of the measurement is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oral implant restoration measurement, and in particular to a device and method for measuring missing tooth gaps. Background Art

[0002] Edentulous teeth are common and frequently occurring diseases in oral clinics. Available restoration methods include fixed restoration supported by natural teeth, removable partial denture restoration, and implant restoration. Before restoration, the gap between missing teeth needs to be measured and analyzed, and the size of the same teeth on the opposite side of the same jaw needs to be compared and judged. The measurement of the gap between missing teeth varies depending on their position in the dentition. Naturally, the posterior teeth are arranged relatively upright. When one or several posterior teeth on one side are missing, the existing measuring tools can be used directly to measure and analyze the vertical gap under occlusion. The measurement result is regarded as the distance from the gingival plane to the occlusal plane at the missing tooth site, which can be used to assist in selecting the height of the implant base and the thickness of the restoration material.

[0003] However, the natural front teeth are arranged with an outward tilt angle (non-upright arrangement) and have an overlapping relationship with the opposing teeth. When one or several front teeth are missing, the existing measurement tools can only measure the vertical distance from the gums at the missing tooth to the opposing teeth. It does not take into account the position of the tilt axis of the anterior tooth area and the incisal end of the opposite tooth with the same name, and cannot be used to accurately evaluate the missing tooth space. In summary, the existing measurement tools and measurement methods cannot locate the tilt axis, nor can they indicate the reference position of the measurement. Therefore, they are not suitable for the measurement and analysis of the tilt axis of the missing tooth space that is common in the anterior tooth area. Summary of the invention

[0004] The purpose of the present invention is to provide a edentulous gap measuring device and a measuring method to address the problems that the measuring tools in the prior art cannot locate the inclined axis, cannot locate the measurement reference position, and are not suitable for the measurement and analysis of the inclined axis of the anterior tooth edentulous gap. The device and the measuring method can refer to the position of the incisal tip or the tooth tip of the adjacent tooth, measure the distance from the gums at the anterior tooth edentulous gap to the reference position, and clarify the starting and ending points of the measurement in the anterior tooth gap on the inclined axis, thereby improving the accuracy of the measurement.

[0005] The present invention is achieved through the following technical solutions:

[0006] In the first aspect, the present invention provides a device for measuring missing tooth gaps, comprising a holding portion, a measuring portion and a positioning portion, the measuring portion comprising a No. 1 measuring portion and a No. 2 measuring portion, the No. 1 measuring portion being L-shaped, one end of which is connected to the holding portion, and the other end being a U-shaped bifurcated structure, one end of the positioning portion being slidably mounted on the U-shaped bifurcated structure, a positioning body being provided on the positioning portion, the positioning body being used to contact with a reference adjacent tooth during measurement, a scale being provided on the U-shaped bifurcated structure to measure the position of the positioning portion on the No. 1 measuring portion, the No. 2 measuring portion being used to be inserted into the U-shaped bifurcated structure during measurement, and a scale being provided on the No. 2 measuring portion to measure the position of the No. 1 measuring portion closest to the opposing dentition.

[0007] As a preferred solution of the present invention, a square through hole is provided on the positioning portion, and the square through hole is adapted to the U-shaped bifurcated structure on the first measuring portion.

[0008] As a preferred solution of the present invention, a circular through hole is provided on the positioning portion, the circular through hole passes through the side wall of the square through hole, and the second measuring portion is pre-installed in the circular through hole.

[0009] As a preferred embodiment of the present invention, a retaining hole is provided on the second measuring part, and the retaining hole is used for allowing dental floss to pass through during measurement.

[0010] As a preferred solution of the present invention, the plane on the square through hole of the positioning part and located on the same side as the positioning body is a reading plane, and the reading plane is used to indicate the scale position of the positioning part on the U-shaped bifurcated structure during measurement.

[0011] As a preferred solution of the present invention, the positioning body includes three types: a positioning plane, a positioning groove and a positioning protrusion.

[0012] As a preferred solution of the present invention, based on the positioning plane, the depth of the positioning groove is 0.5 mm, and the height of the positioning protrusion is 0.5 mm.

[0013] As a preferred solution of the present invention, the second measuring part is cylindrical, and a scale of 0-5 mm is arranged along the axial direction thereof.

[0014] As a preferred solution of the present invention, a scale of 0-15 mm is provided on the U-shaped bifurcated structure of the first measuring part.

[0015] As a preferred solution of the present invention, it also includes a self-positioning structure, which has a sliding groove adapted to the U-shaped bifurcated structure of the first measuring part, and the second measuring part can be installed on the self-positioning structure.

[0016] In a second aspect, the present invention provides a method for measuring missing tooth gaps, using the missing tooth gap measuring device described in the first aspect, comprising the following steps:

[0017] The positioning part is mounted on the U-shaped bifurcated structure of the first measuring part, and is arranged at the bottom end of the U-shaped bifurcated structure of the first measuring part;

[0018] Place the U-shaped bifurcated structure of the No. 1 measuring part against the gums in the center of the edentulous area, and adjust the buccal and lingual and mesiodistal upward inclination of the No. 1 measuring part to make it parallel to the long axis of the adjacent teeth;

[0019] Slide the positioning part along the U-shaped forked structure of the first measuring part until the positioning body on the positioning part contacts the incisal end or tooth cusp of the adjacent tooth, and read the measurement result according to the scale position of the positioning part on the U-shaped forked structure of the first measuring part, which is recorded as the axial measurement value of the missing tooth gap;

[0020] Insert the No. 2 measuring part into the U-shaped forked structure of the No. 1 measuring part, and use the No. 2 measuring part to measure at the position where the No. 1 measuring part is closest to the opposing dentition. Read the measurement result and record it as the distance between the long axis of the edentulous gap and the opposing teeth, that is, the radial measurement value of the edentulous gap.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] 1. The present invention can refer to the position of the incisal edge or tooth cusp of the adjacent tooth to measure the distance from the gums at the anterior tooth gap to the reference position. In the anterior tooth gap with an inclined axis, the starting and ending points of the measurement are clearly defined, thereby improving the accuracy of the measurement.

[0023] 2. The measurement results of the present invention can assist in determining the design length of future restorations and the height of future available implant abutments;

[0024] 3. The U-shaped bifurcated structure of the No. 1 measuring part in the present invention can limit the moving track of the No. 2 measuring part to the long axis of the edentulous gap, and the positioning part limits the measuring direction of the No. 2 measuring part, so that it can measure the distance between the long axis of the edentulous gap and the opposing teeth, which can assist in determining the design thickness of the future restoration and the diameter of the future implant abutment;

[0025] 4. The second measuring part of the present invention has a larger movable distance in the U-shaped bifurcated structure of the first measuring part, and is suitable for various overbite situations;

[0026] 5. In the present invention, the second measuring part can be buckled onto the first measuring part through a self-positioning structure, which is beneficial for maintaining a stable position of the second measuring part during the measurement process, and the plane of the self-positioning structure is also convenient for reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 1 It is a schematic diagram of the holding part and the first measuring part of the missing tooth space measuring device of the present invention;

[0029] Figure 2 It is a schematic diagram of the coordination between the missing tooth gap measuring device and the positioning part in the present invention;

[0030] Figure 3 It is a schematic diagram of the positioning part including the positioning plane and the second measuring part in the present invention;

[0031] Figure 4 It is a schematic diagram of the positioning part with the positioning groove in the present invention cooperating with the second measuring part;

[0032] Figure 5 It is a schematic diagram of the positioning part including the positioning protrusion in the present invention cooperating with the second measuring part;

[0033] Figure 6 Schematic diagram of preparing to measure the edentulous space of the left central incisor using the measuring device;

[0034] Figure 7 This is a schematic diagram of the axial measurement of the edentulous space of the left central incisor;

[0035] Figure 8 This is a schematic diagram of the radial measurement of the edentulous space of the left central incisor;

[0036] Fig. 9 Schematic diagram of preparing to measure the edentulous space of the right central incisor using the measuring device;

[0037] Fig.10 This is a schematic diagram of the axial measurement of the edentulous space of the right lateral incisor;

[0038] Fig.11 This is a schematic diagram of the radial measurement of the missing tooth space of the right central incisor;

[0039] Fig.12 This is a schematic diagram of the axial measurement of the right central incisor edentulous space in the continuous edentulous space;

[0040] Fig.13 This is a schematic diagram of radial measurement of the right central incisor edentulous space in a continuous edentulous space;

[0041] Fig.14It is a schematic diagram of the second measuring section with a self-positioning structure;

[0042] Fig.15 Schematic diagram of radial measurement of the edentulous space of the right central incisor when using the No. 2 measuring part with a self-positioning structure.

[0043] Marks and corresponding parts names in the attached drawings:

[0044] 1-holding part; 2-measuring part No. 1; 3-positioning part; 31-positioning body; 32-square through hole; 33-reading plane; 34-circular through hole; 4-measuring part No. 2; 41-retention hole; 42-self-positioning structure. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0047] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0050] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0051] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0052] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0053] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0054] Please refer to Figures 1 to 15 A device for measuring missing tooth gaps provided in an embodiment of the present application comprises a holding portion 1, a measuring portion and a positioning portion 3, wherein the measuring portion comprises a No. 1 measuring portion 2 and a No. 2 measuring portion 4, wherein the No. 1 measuring portion 2 is L-shaped, one end of which is connected to the holding portion 1, and the other end is a U-shaped bifurcated structure, one end of the positioning portion 3 is slidably mounted on the U-shaped bifurcated structure, a positioning body 31 is provided on the positioning portion 3, the positioning body 31 is used to contact with a reference adjacent tooth during measurement, a scale is provided on the U-shaped bifurcated structure to measure the position of the positioning portion 3 on the No. 1 measuring portion 2, the No. 2 measuring portion 4 is used to be inserted into the U-shaped bifurcated structure during measurement, and a scale is provided on the No. 2 measuring portion 4 to measure the closest position of the No. 1 measuring portion 2 to the opposing dentition.

[0055] Specifically, the gripping portion 1 may be a long cylindrical structure, used to hold the device when measuring the missing tooth gap, so as to facilitate the measurement operation. The first measuring portion 2 may be an L-shaped slat-like structure, one end of which is fixedly connected to one end of the gripping portion 1. The first measuring portion 2 is designed to be L-shaped to avoid being blocked by adjacent teeth during measurement.

[0056] The end of the No. 1 measuring part 2 away from the gripping part 1 is a U-shaped bifurcated structure, and the so-called U-shaped bifurcated structure means that a U-shaped groove is opened axially from the end of the No. 1 measuring part 2, so that the end of the No. 1 measuring part 2 forms a U-shaped bifurcated structure. A 0-15mm scale is set on the U-shaped bifurcated structure of the No. 1 measuring part 2, and the scale is marked axially from the end.

[0057] The positioning part 3 may be a rectangular parallelepiped structure, one end of the positioning part 3 forms a sliding connection with the U-shaped forked structure of the first measuring part 2, and the positioning part 3 is perpendicular to the U-shaped forked structure of the first measuring part 2. A positioning body 31 is provided on the positioning part 3, and the positioning body 31 is located on one side of the positioning part 3 facing the end of the U-shaped forked structure of the first measuring part 2, so that the positioning body 31 contacts the incisal end or cusp of the reference adjacent tooth during measurement.

[0058] According to some embodiments of the present application, a square through hole 32 is provided at one end of the positioning portion 3, and the square through hole 32 is adapted to the U-shaped bifurcated structure on the first measuring portion 2. The positioning portion 3 is slidably mounted on the U-shaped bifurcated structure of the first measuring portion 2 through the square through hole 32.

[0059] According to some embodiments of the present application, the plane on the same side as the positioning body 31 on the square through hole 32 of the positioning portion 3 is a reading plane 33, and the reading plane 33 is used to indicate the scale position of the positioning portion 3 on the U-shaped bifurcated structure during measurement. When measuring, since the positioning portion 3 can slide on the U-shaped bifurcated structure of the first measuring portion 2, when the positioning body 31 on the positioning portion 3 contacts the incisal end or cusp of the reference adjacent tooth, the scale position of the reading plane 33 can be read at this time, and the reading is the axial measurement value of the missing tooth gap.

[0060] According to some embodiments of the present application, a circular through hole 34 is provided on the positioning part 3, and the circular through hole 34 passes through the side wall of the square through hole 32, and the second measuring part 4 is pre-installed in the circular through hole 34. In this design, when the second measuring part 4 is not in use, it can be installed in the circular through hole 34 on the positioning part 3, which is convenient for storage and avoids loss.

[0061] According to some embodiments of the present application, the second measuring part 4 is cylindrical, and a 0-5 mm scale is set axially thereon. The scale is marked from one end of the second measuring part 4. When measuring, the second measuring part 4 is inserted into the U-shaped bifurcated structure of the first measuring part 2, and the second measuring part 4 is used to measure at the position closest to the first measuring part 2 and the opposing dentition, and the measurement result is read out and recorded as the distance between the long axis of the edentulous gap and the opposing teeth, that is, the radial measurement value of the edentulous gap.

[0062] According to some embodiments of the present application, a retention hole 41 is provided on the second measuring part 4, and the retention hole 41 is used for passing a dental floss during measurement. The retention hole 41 is provided at one end of the second measuring part 4 away from the scale, and when the second measuring part 4 is used for measurement, a dental floss is passed through the retention hole 41, so that the second measuring part 4 can be prevented from accidentally falling off into the oral cavity during use.

[0063] According to some embodiments of the present application, the positioning body 31 has three types: a positioning plane, a positioning groove and a positioning convex body. Taking the positioning plane as a reference, the depth of the positioning groove is 0.5 mm, and the height of the positioning convex body is 0.5 mm.

[0064] Since the positioning body 31 has three types, namely, a positioning plane, a positioning groove and a positioning convex body, the measurement is realized with reference to the incisor or cusp of the same tooth on the opposite side of the same jaw; the height difference between the positioning groove and the positioning convex body and the positioning plane is consistent with the height difference between the lateral incisor and the central incisor and canine in the natural dentition. Therefore, the measurement of the missing tooth gap of the anterior teeth with one of the central incisor, lateral incisor or canine as a reference can be realized by replacing the positioning part 3 of different positioning bodies 31. That is: when there is no height difference between the missing tooth and the adjacent tooth of the measurement reference, the positioning plane is used to assist in positioning; when the missing tooth is located on the crown side of the adjacent tooth of the measurement reference, the positioning convex body is used to assist in positioning; when the missing tooth is located on the root side of the adjacent tooth of the measurement reference, the positioning groove is used to assist in positioning.

[0065] According to some embodiments of the present application, a self-positioning structure 42 is further included, and the self-positioning structure 42 has a slide groove that matches the U-shaped bifurcated structure of the first measuring part 2, and the second measuring part 4 can be installed on the self-positioning structure 42. Specifically, the self-positioning structure 42 can be a rectangular structure, and a slide groove that matches the U-shaped bifurcated structure of the first measuring part 2 is opened on one side of the self-positioning structure 42, and a through hole that matches the second measuring part 4 is provided.

[0066] When in use, the self-positioning structure 42 can be buckled on the U-shaped bifurcated structure of the No. 1 measuring part 2 through the sliding groove, so that the self-positioning structure 42 can slide along the U-shaped bifurcated structure of the No. 1 measuring part 2, and the No. 2 measuring part 4 is installed on the self-positioning structure 42 through the through hole, and the end of the No. 2 measuring part 4 extending into the mouth is in the U-shaped bifurcated structure of the No. 1 measuring part 2, so that the No. 1 measuring part 2 is measured at the position closest to the opposing dentition, and the measurement result is read out and recorded as the distance between the long axis of the missing tooth gap and the opposing teeth, such as Fig.14 and Fig.15 shown.

[0067] According to some embodiments of the present application, before the upper restoration of the anterior teeth implant, the measuring device in the embodiment of the present application is used to measure the long axis of the implant as the reference, and the axial measurement value of the edentulous area is measured, and 1mm is subtracted to obtain the maximum height of the optional finished abutment; the radial measurement value of the edentulous area is measured, and 1mm is subtracted to obtain the maximum radius of the optional finished abutment. When the radius of the selected finished abutment exceeds this numerical requirement, it is necessary to adjust the palatal side.

[0068] The measuring device in the embodiment of the present application can also be used to measure the thickness of soft tissue: select the positioning part 3 of the positioning plane, place the U-shaped bifurcated structure of the first measuring part 2 on the bone surface, move the positioning part 3 to make the positioning plane contact the free gingiva, and the reading is the soft tissue thickness; when the U-shaped bifurcated structure is placed on the implant platform for measurement, the reading is the gingival height. The U-shaped bifurcated structure of the first measuring part 2 can also be used to measure the height of hollow thin-walled structures, such as measuring the remaining height after the abutment is adjusted and ground, which can be used to determine whether the bonding height is sufficient.

[0069] A method for measuring missing tooth gaps provided in an embodiment of the present application, using the missing tooth gap measuring device described above, comprises the following steps:

[0070] ① Put the positioning part 3 on the U-shaped bifurcated structure of the first measuring part 2 through the square through hole 32, and set it at the bottom of the U-shaped bifurcated structure of the first measuring part 2;

[0071] ② Place the U-shaped bifurcated structure of the No. 1 measuring part 2 against the gums in the center of the edentulous area, and adjust the inclination of the No. 1 measuring part 2 in the buccal and lingual directions and in the mesiodistal and upward directions to make it parallel to the long axis of the adjacent tooth;

[0072] ③ Slide the positioning part 3 along the U-shaped bifurcated structure of the first measuring part 2 until the positioning body 31 on the positioning part 3 contacts the incisal end or cusp of the adjacent tooth, and read the measurement result according to the scale position of the reading plane 33 on the square through hole 32 of the positioning part 3 on the U-shaped bifurcated structure of the first measuring part 2, which is recorded as the axial measurement value of the missing tooth gap;

[0073] ④ Tie the dental floss in the retention hole 41 of the No. 2 measuring part 4, take it out from the positioning part 3, insert the No. 2 measuring part 4 into the U-shaped forked structure of the No. 1 measuring part 2, measure the No. 1 measuring part 2 at the position closest to the opposing dentition through the No. 2 measuring part 4, read the measurement result, and record it as the distance between the long axis of the edentulous gap and the opposing teeth, that is, the radial measurement value of the edentulous gap.

[0074] Specifically, the gap measurement of the missing maxillary left central incisor is based on the incisal tip of the right central incisor as a reference. The operation process is as follows:

[0075] ① Use the positioning part 3 of the positioning plane, put it on the U-shaped bifurcated structure of the first measuring part 2, and set it at the bottom of the U-shaped bifurcated structure, such as Figure 6 ② Place the U-shaped forked structure of the No. 1 measuring part 2 against the gums at the center of the edentulous area of ​​the left central incisor in the maxillary, and adjust the No. 1 measuring part 2 in the buccal and lingual directions and in the mesiodistal and upward directions to make it parallel to the long axis of the right central incisor; ③ Move the positioning part 3 away from the bend until the positioning plane contacts the incisal end of the right central incisor, and read the measurement result according to the position of the reading plane 33 at one end of the square through hole 32 of the positioning part 3, and record it as the axial measurement value of the edentulous gap, as shown in FIG. Figure 7 ④ Tie the dental floss in the retention hole 41 of the second measuring part 4, take it out from the positioning part 3, measure at the position closest to the first measuring part 2 and the opposing dentition, read the measurement result, and record it as the distance between the long axis of the missing tooth gap and the opposing teeth, that is, the radial measurement value of the missing tooth gap, as shown in FIG. Figure 8 shown.

[0076] Specifically, the gap measurement of the maxillary right lateral incisor missing uses the right canine cusp as a reference, and the operation process is as follows:

[0077] ① Use the positioning part 3 with the positioning groove, put it on the U-shaped bifurcated structure of the first measuring part 2, and set it at the bottom of the U-shaped bifurcated structure, such as Fig. 9 ② Place the U-shaped forked structure of the No. 1 measuring part 2 against the gums at the center of the edentulous area of ​​the right lateral incisor of the maxillary right side, and adjust the No. 1 measuring part 2 in the buccal and lingual directions and in the mesiodistal and upward directions to make it parallel to the long axis of the right canine; ③ Move the positioning part 3 away from the bend until the positioning groove contacts the cusp of the right canine, and read the measurement result according to the position of the reading plane 33 at one end of the square through hole 32 of the positioning part 3, and record it as the axial measurement value of the edentulous gap, as shown in FIG. Fig.10 ④ Tie the dental floss in the retention hole 41 of the second measuring part 4, take it out from the positioning part 3, measure at the position closest to the first measuring part 2 and the opposing dentition, read the measurement result, and record it as the distance between the long axis of the missing tooth gap and the opposing teeth, that is, the radial measurement value of the missing tooth gap of the right lateral incisor, as shown in FIG. Fig.11 shown.

[0078] Specifically, the gap measurement for missing maxillary left and right central incisors is based on the incisal tips of the left and right lateral incisors as references, and the operation process is as follows:

[0079] ① Use the positioning part 3 of the positioning convex body, put it on the U-shaped fork structure of the No. 1 measuring part 2, and set it at the bottom of the U-shaped fork structure; ② Place the U-shaped fork structure of the No. 1 measuring part 2 against the gums in the center of the edentulous area of ​​the maxillary right central incisor, and adjust the inclination of the No. 1 measuring part 2 in the buccal and lingual directions and in the mesiodistal and upward directions to make it parallel to the long axis of the right lateral incisor; ③ Move the positioning part 3 away from the bend until the positioning convex body contacts the incisal end of the right lateral incisor, and read the measurement result according to the position of the reading plane 33 at one end of the square through hole 32 of the positioning part 3, and record it as the axial measurement value of the edentulous gap of the right central incisor, such as Fig.12 ④ Tie the dental floss in the retention hole 41 of the second measuring part 4, take it out of the positioning part 3, measure at the position closest to the first measuring part 2 and the opposing dentition, read the measurement result, and record it as the distance between the long axis of the missing tooth gap and the opposing teeth, that is, the radial measurement value of the missing tooth gap of the right central incisor, as shown in FIG. Fig.13 As shown; ⑤ Place the U-shaped forked structure of the No. 1 measuring part 2 against the gums in the center of the edentulous area of ​​the maxillary left central incisor, and adjust the inclination of the No. 1 measuring part 2 in the buccal-lingual direction and the mesio-distal-upward direction to make it parallel to the long axis of the left lateral incisor; ⑥ Move the positioning part 3 away from the bend until the positioning protrusion contacts the cutting end of the left lateral incisor, and read the measurement result according to the position of the reading plane 33 at one end of the square through hole 32 of the positioning part 3, and record it as the axial measurement value of the edentulous gap of the left central incisor; ⑦ Tie the dental floss in the retention hole 41 of the No. 2 measuring part 4, take it out of the positioning part 3, measure at the position where the No. 1 measuring part 2 is closest to the opposing dentition, read the measurement result, and record it as the distance between the long axis of the edentulous gap and the opposing teeth, that is, the radial measurement value of the edentulous gap of the left central incisor.

[0080] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for measuring missing tooth gaps, characterized in that: It includes a holding part, a measuring part and a positioning part, the measuring part includes a No. 1 measuring part and a No. 2 measuring part, the No. 1 measuring part is L-shaped, one end of which is connected to the holding part, and the other end is a U-shaped bifurcated structure, one end of the positioning part is slidably mounted on the U-shaped bifurcated structure, a positioning body is provided on the positioning part, the positioning body is used to contact with the reference adjacent tooth during measurement, the U-shaped bifurcated structure is provided with a scale to measure the position of the positioning part on the No. 1 measuring part, the No. 2 measuring part is used to be inserted into the U-shaped bifurcated structure during measurement, and the No. 2 measuring part is provided with a scale to measure the position of the No. 1 measuring part closest to the opposing dentition.

2. The device for measuring missing tooth space according to claim 1, characterized in that: The positioning portion is provided with a square through hole, and the square through hole is adapted to the U-shaped bifurcated structure on the first measuring portion.

3. The device for measuring missing tooth gaps according to claim 2, characterized in that: The positioning portion is provided with a circular through hole, the circular through hole passes through the side wall of the square through hole, and the second measuring portion is pre-installed in the circular through hole.

4. The device for measuring missing tooth space according to claim 3, characterized in that: The second measuring part is provided with a retaining hole, and the retaining hole is used for allowing dental floss to pass through during measurement.

5. The device for measuring missing tooth space according to claim 2, characterized in that: The plane on the square through hole of the positioning part and located on the same side as the positioning body is a reading plane, and the reading plane is used to indicate the scale position of the positioning part on the U-shaped bifurcated structure during measurement.

6. The device for measuring missing tooth gaps according to any one of claims 1 to 5, characterized in that: The positioning body includes three types: a positioning plane, a positioning groove and a positioning convex body.

7. The device for measuring missing tooth spaces according to claim 6, characterized in that: Taking the positioning plane as a reference, the depth of the positioning groove is 0.5 mm and the height of the positioning protrusion is 0.5 mm.

8. The device for measuring missing tooth spaces according to claim 1, characterized in that: The second measuring part is cylindrical, and a scale of 0-5 mm is arranged along the axial direction thereof.

9. The device for measuring missing tooth spaces according to claim 1, characterized in that: The U-shaped bifurcated structure of the first measuring part is provided with a scale of 0-15 mm.

10. A method for measuring missing tooth gaps, using the missing tooth gap measuring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The positioning part is mounted on the U-shaped bifurcated structure of the first measuring part, and is arranged at the bottom end of the U-shaped bifurcated structure of the first measuring part; Place the U-shaped bifurcated structure of the No. 1 measuring part against the gums in the center of the edentulous area, and adjust the buccal and lingual and mesiodistal upward inclination of the No. 1 measuring part to make it parallel to the long axis of the adjacent teeth; Slide the positioning part along the U-shaped forked structure of the first measuring part until the positioning body on the positioning part contacts the incisal end or tooth cusp of the adjacent tooth, and read the measurement result according to the scale position of the positioning part on the U-shaped forked structure of the first measuring part, which is recorded as the axial measurement value of the missing tooth gap; Insert the No. 2 measuring part into the U-shaped forked structure of the No. 1 measuring part, and use the No. 2 measuring part to measure at the position where the No. 1 measuring part is closest to the opposing dentition. Read the measurement result and record it as the distance between the long axis of the edentulous gap and the opposing teeth, that is, the radial measurement value of the edentulous gap.

Images