Dental measuring device

Abstract

A dental measuring device comprises a measuring device body and a measuring clamping seat, the measuring device body comprises a base, an axis seat, a first measuring arm, a second measuring arm and a measuring rod, the axis seat, the first measuring arm and the second measuring arm can pivot mutually, the second measuring arm is provided with the measuring rod, the measuring rod is provided with a measuring needle used for measuring a tooth mold, and the measuring clamping seat is used for clamping the tooth mold. The analysis clamping seat comprises a clamping table and an adjusting base, the analysis clamping seat is arranged on the base, the clamping table can be used for clamping a tooth die, the angle and direction of the clamping table can be changed through the adjusting base, three adjusting screws are locked on the adjusting base, and the height of the corresponding position of the clamping table is changed through advancing and retreating of the adjusting screws. And the effect of three-point positioning adjustment on the tooth die and the accurate adjustment of the angle of the tooth die are achieved.

Description

Technical Field

[0001] This utility model relates to a dental analyzer, specifically a dental analyzer that facilitates quick calibration by the user. Background Technology

[0002] Dental abnormalities and diseases are complex, with common ones including tooth decay, periodontal disease, or premature tooth removal due to external forces. The gaps created by tooth removal can affect the surrounding healthy teeth. As the teeth lose the support of adjacent teeth, the surrounding teeth will gradually loosen and fall out, creating a vicious cycle for all teeth. Therefore, it is necessary to replace dentures in a timely manner. Existing denture methods include more expensive dental implants, or fixed bridges, crowns, and removable dentures. Since everyone's tooth shape, mouth shape, and gum condition are different, it is necessary to obtain the patient's dental impressions to facilitate the subsequent fabrication of dentures, bridges, crowns, and removable dentures.

[0003] The fabrication of dentures requires collaboration between dentists and dental technicians. Bridges, crowns, and removable partial dentures all have specific insertion and removal paths. If the angle or direction is incorrect, these devices cannot be installed correctly. Therefore, dentists and dental technicians need to confirm the angle and direction of the dental model. This requires a measuring instrument to confirm the height and ensure the positioning points on the model are consistent. The instrument also has an adjustment function, allowing the dental technician to obtain the same dental model orientation as the dentist's design, thus avoiding installation angle problems during subsequent denture fabrication.

[0004] Furthermore, in order to improve the efficiency of doctors' design and dental model technicians' processing, it is also necessary to speed up the measurement and positioning process. Under the premise of allowing accuracy and error, the positioning points on the dental model can be measured by the analyzer to ensure that the angle and direction of the dental model are consistent between the doctor and the dental model technician, thereby reducing the preparation work and time wastage and improving efficiency.

[0005] Depend on Figure 26As shown, a conventional dental surveyor (90) has a surveyor table (91) with only a ball joint (92). When determining, recording and reproducing the path of insertion of a cast on a conventional dental surveyor (90), once one direction is determined, the movement of the ball joint (92) will cause the originally determined direction to change when determining another direction. When re-tripodizing on a traditional dental surveyor (90), often two points are adjusted to be at the same height. When adjusting the height of the other point, the movement of the ball joint (92) will cause the relationship between the two points that were originally at the same height to change. This makes it quite difficult to determine, record and reproduce the path of insertion of a cast on a dental surveyor on a traditional dental surveyor (90). It also results in imprecise denture fabrication and affects the patient's experience.

[0006] Therefore, in view of this, the creator came up with the idea of ​​creation and designed it based on many years of experience. After extensive discussions, sample testing, and multiple revisions and improvements, this utility model was finally launched. Utility Model Content

[0007] The technical problem this invention aims to solve is to provide a dental analyzer that addresses the aforementioned deficiencies in the existing technology.

[0008] Technical characteristics of the problem-solving process:

[0009] This utility model provides a dental analyzer, comprising an analyzer and an analyzer clamp. The analyzer includes a base, a pivot seat, a first measuring arm, a second measuring arm, and an analyzer rod. The pivot seat is locked onto the base. The first measuring arm is pivotally connected to the pivot seat, and the second measuring arm is pivotally connected to the first measuring arm, allowing the pivot seat, the first measuring arm, and the second measuring arm to pivot relative to each other. The second measuring arm is equipped with the analyzer rod, and the analyzer rod is equipped with an analyzer needle for analyzing a dental mold. The analyzer clamp includes a clamping platform and an adjusting base. The analyzer clamp is placed on the base. The clamping platform can be used to clamp a dental mold and has a clamping adjustment part for adjusting the clamping tightness. The bottom of the clamping table has a spherical rotating part, and the center of the adjustment base has a fine-tuning component. The fine-tuning component is locked with a fine-tuning handle. The rotating part is clamped on the fine-tuning component. Rotating the fine-tuning handle can release the fine-tuning component, thereby adjusting the rotating part and changing the angle and direction of the clamping table. The top of the adjustment base has a top sleeve to limit the position of the rotating part. The adjustment base is locked with a first adjustment screw, a second adjustment screw, and a third adjustment screw. By moving the adjustment screws forward and backward, the height of the positioning points of the toothed mold clamped on the clamping table corresponding to the first adjustment screw, the second adjustment screw, and the third adjustment screw can be changed, achieving the effect of three-point positioning adjustment.

[0010] Furthermore, the shaft seat is locked onto the base, and a pivot shaft is provided at the top of the shaft seat. The first measuring arm passes through a shaft hole and a first pivot hole. A first mounting hole and a second mounting hole are respectively opened on the side of the shaft hole and the first pivot hole. The pivot shaft of the shaft seat passes through the shaft hole. The second measuring arm passes through a second pivot hole and a measuring rod hole. A third mounting hole and three fourth mounting holes are respectively opened on the side of the second pivot hole and the measuring rod hole. A measuring rod bushing is installed in the measuring rod hole. The fourth mounting hole is secured by several ball spring screws. A measuring rod is inserted through the measuring rod bushing, and a measuring needle can be mounted on the measuring rod for measuring a toothed die. A stop is locked at the top of the measuring rod, which abuts against the measuring rod bushing to limit the measuring rod's range of motion. A ball spring screw is locked at both the top and bottom of the fourth mounting hole. The ball spring screw applies even pressure to the measuring rod to eliminate tolerances within the measuring rod bushing and improve accuracy. The middle... A measuring rod locking screw is installed in the fourth mounting hole, abutting against the measuring rod. Tightening or loosening the measuring rod locking screw can adjust and fix the position of the measuring rod. A sliding bushing is passed through the first pivot hole and the second pivot hole, and a pivot shaft passes through the two sliding bushings. A stop screw is locked in the second mounting hole, abutting against the pivot shaft to fix the pivot shaft, thereby allowing the shaft seat, the first measuring arm, and the second measuring arm to pivot relative to each other. The first measuring arm is locked in the first mounting hole and the pivot shaft by a stop screw for adjustment and fixation. The angle between the pivot seat and the first measuring arm is fixed. The second measuring arm is locked in the third mounting hole by a stop screw and abuts against the pivot shaft to adjust and fix the angle between the first measuring arm and the second measuring arm. A screw cap is provided on the top of the pivot shaft and the pivot shaft to limit its top position. The first measuring arm and the second measuring arm are provided with several shims and several bearings to enhance the smoothness of pivoting, thereby achieving a pivoting linkage relationship between the pivot seat, the first measuring arm, the second measuring arm and the measuring rod, and maintaining a precise parallelism and perpendicularity relationship.

[0011] The main objective of this invention is that the adjusting base can adjust the angle and direction of the tooth mold, thereby initially bringing the first, second, and third positioning points close to the first, second, and third adjusting screws respectively, thus quickly completing the initial correction. The local height of the tooth mold can be adjusted through the first, second, and third adjusting screws, enabling quick, intuitive, simple, and accurate three-point positioning. The shaft seat, first measuring arm, and second measuring arm can pivot relative to each other, and in conjunction with the measuring needle, the height of the first, second, and third positioning points can be quickly measured for analysis, thus improving efficiency.

[0012] Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description and the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is an exploded view of the analyzer of this utility model.

[0015] Figure 3 This is an exploded view of the analytical clamp of this utility model.

[0016] Figure 4 This is a cross-sectional view of the present invention.

[0017] Figure 5 This is a schematic diagram showing the addition of a measuring needle and a clamping tooth mold to this utility model.

[0018] Figure 6 This is a schematic diagram of the pivoting analyzer of this utility model measuring the tooth mold.

[0019] Figure 7 This is a schematic diagram of the adjustment of the clamping table angle according to the present invention.

[0020] Figure 8 This is a schematic diagram illustrating how the height of the clamping table can be adjusted using adjusting screws according to this utility model.

[0021] Figure 9 This is a schematic diagram showing the relative position of the positioning point and the adjusting screw before measurement in this utility model.

[0022] Figure 10 This is a top view showing the relative positions of the positioning points and the adjusting screws before measurement, indicating the positions of the positioning points close to the adjusting screws.

[0023] Figure 11 This is a schematic diagram of the tooth mold and positioning points of this utility model.

[0024] Figure 12 This is a schematic diagram of the positioning point presented by projection in this utility model.

[0025] Figure 13 This is a schematic diagram of the first positioning point for the analysis of this utility model.

[0026] Figure 14 This is a schematic diagram of the second positioning point for the analysis of this utility model.

[0027] Figure 15 This is a schematic diagram of the first correction presented by projection.

[0028] Figure 16This is a schematic diagram of the third positioning point for the analysis of this utility model.

[0029] Figure 17 This is a schematic diagram of the projection of the third adjusting screw in this utility model.

[0030] Figure 18 This is a schematic diagram of the second correction presented by projection in this utility model.

[0031] Figure 19 This is a schematic diagram of the third correction presented by projection in this utility model.

[0032] Figure 20 This is a schematic diagram of adjusting the first adjusting screw according to the present invention.

[0033] Figure 21 This is a schematic diagram of the projection of the first adjusting screw in this utility model.

[0034] Figure 22 This is a schematic diagram of the fourth correction presented by projection in this utility model.

[0035] Figure 23 This is an enlarged schematic diagram of the fourth correction presented by projection of this utility model.

[0036] Figure 24 This is one of the schematic diagrams of the actual measurement tooth mold of this utility model.

[0037] Figure 25 This is the second schematic diagram of the actual measurement tooth mold of this utility model.

[0038] Figure 26 A three-dimensional diagram of a conventional dental measuring instrument.

[0039] Symbol explanation:

[0040] Existing section:

[0041] Traditional dental analyzer – (90) Analyzer base – (91) Ball joint – (92)

[0042] Part of this utility model:

[0043] Measuring instrument -----(10) Ball spring screw --(101) Measuring rod locking screw -(102) Sliding bushing ----(103) Pivot shaft -----(104) Stop screw arm ----(105) Screw cap -----(106) Washer ------(107) Bearing part -----(108) Stop screw ----(109) Base ------(11) Threaded fastener -----(111) Shaft seat -----(12) Pivot shaft -----(121) First measuring arm ----(13) Shaft hole ------(131) First mounting hole ---(1311) First pivot hole ---(132) Second mounting hole --- (1321) Second measuring arm --- (14) Second pivot hole --- (141) Third mounting hole --- (1411) Measuring rod hole --- (142) Fourth mounting hole --- (1421) Measuring rod bushing --- (143) Measuring rod --- (15) Measuring needle --- (151) Top stop --- (152) Measuring clamp --- (20) Clamping table --- (21) Clamping adjustment part --- (211) Rotating part --- (212) Adjusting base --- (22) Fine adjustment part --- (221) Fine adjustment handle --- (222) Top sleeve --- (23) Tooth mold ------(30)

[0044] First positioning point --- (A)

[0045] Second positioning point --- (B)

[0046] Third positioning point --- (C)

[0047] First adjusting screw -- (O)

[0048] Second adjusting screw -- (P)

[0049] Third adjusting screw -- (Q) Detailed Implementation

[0050] To further understand and recognize the purpose, features, and effects of this utility model, the following are examples with reference to the accompanying drawings, and detailed explanations are provided below:

[0051] First, please let Figures 1 to 6 As shown, this utility model provides a dental surveyor (1), which includes a surveyor (10) and a surveyor table (20), wherein,

[0052] The simplified form of the analyzer (10) of this utility model is as follows: The analyzer (10) includes a base (11) (surveyor plateform), a spindle (12) (vertical column), a first surveying arm (13) (first surveying arm), a second surveying arm (14) (second surveying arm), and a spindle (15) (vertical spindle). The spindle (12) is locked on the base (11). The first surveying arm (13) is pivotally connected to the spindle (12), and the second surveying arm (14) is pivotally connected to the first surveying arm (14), so that the spindle (12), the first surveying arm (13), and the second surveying arm (14) can pivot relative to each other. The second surveying arm (14) is equipped with the spindle (15), and the spindle (15) is equipped with a measuring rod (151) (analyzing rod) for measuring a toothed die (30) (cast).

[0053] The complete form of the measuring instrument (10) of this utility model is as follows: The measuring instrument (10) includes a base (11), a pivot seat (12), a first measuring arm (13), a second measuring arm (14), and a measuring rod (15). The pivot seat (12) is locked on the base (11). A pivot shaft (121) is provided on the top of the pivot seat (12). The first measuring arm (13) has a shaft hole (131) and a first pivot hole (132) through it. A first insertion hole (1311) and a second insertion hole (1321) are respectively opened on the side of the shaft hole (131) and the first pivot hole (1321). The pivot shaft (121) of the pivot seat (12) passes through the shaft hole (131). The second measuring arm (14) has a second pivot hole (141). The second pivot hole (141) and the measuring rod hole (142) are respectively provided with a third insertion hole (1411) and three fourth insertion holes (1421) on their sides. A measuring rod bushing (143) is installed in the measuring rod hole (142). A number of ball point set screws (101) are locked in the fourth insertion holes (1421) to assemble the measuring rod bushing (143) into the fourth insertion hole (1421). A measuring rod (15) is inserted in the measuring rod bushing (143). A measuring needle (151) can be installed in the measuring rod (15) for measuring a tooth mold (30). A stop part (152) is locked on the top of the measuring rod (15). The top stop (152) abuts against the measuring rod bushing (143) to limit the movement range of the measuring rod (15). A ball spring screw (101) is locked in the upper and lower fourth mounting holes (1421). The ball spring screw (101) applies average pressure to the measuring rod (15) to eliminate tolerances within the measuring rod bushing (143) and improve accuracy. A measuring rod locking screw (102) is locked in the middle fourth mounting hole (1421) against the measuring rod (15). Tightening or loosening the measuring rod locking screw (102) can adjust and fix the position of the measuring rod (15). A sliding bushing (103) passes through each of the first pivot hole (132) and the second pivot hole (141).The sliding bushing (103) passes through a pivot shaft (104), and a stop screw (109) is locked in the second mounting hole (1321) against the pivot shaft (104) to fix the pivot shaft (104), thereby allowing the shaft seat (12), the first measuring arm (13), and the second measuring arm (14) to pivot relative to each other. The first measuring arm (13) is locked in the second mounting hole (1321) with a stop screw (105). A mounting hole (1311) and a pivot shaft (121) are provided to adjust and fix the angle between the shaft seat (12) and the first measuring arm (13). The second measuring arm (14) is locked in the third mounting hole (1411) by a stop screw (105) and abuts against the pivot shaft (104) to adjust and fix the angle between the first measuring arm (13) and the second measuring arm (14). A screw cap (106) is provided on the top of the pivot shaft (121) and the pivot shaft (104). The screw is used to limit its top position. The first measuring arm (13) and the second measuring arm (14) are provided with several washers (107) and several bearing portions (108) to enhance the smoothness of pivoting. The washers (107) are used to protect the bearing portions (108) below them, thereby achieving a pivoting relationship between the shaft seat (12), the first measuring arm (13), and the second measuring arm (14).

[0054] The measuring clamp (20) includes a cast clamping table (21) and an adjusting base (22). The measuring clamp (20) is placed on the base (11). The cast clamping table (21) can be used to clamp a toothed mold (30) and is provided with a cast holding knob (211) to adjust the tightness of the clamping. The bottom of the cast clamping table (21) is provided with a swivel ball. The center of the adjusting base (22) is provided with a fine adjustment device (221), which is locked with a fine adjustment knob (222). The rotating part (212) is clamped on the fine adjustment part (221). Rotating the fine adjustment knob (222) can release the fine adjustment part (221) and adjust the rotating part (212) to change the angle and direction of the clamping table (21). The top of the adjustment base (22) is provided with a top sleeve (23) to limit the position of the rotating part (212). The adjustment base (22) is locked with a first adjustment screw (O), a second adjustment screw (P), and a third adjustment screw (Q). By moving the first adjustment screw (O), the second adjustment screw (P), and the third adjustment screw (Q) forward and backward, the height of the tooth mold on the clamping table (21) corresponding to the first adjustment screw (O), the second adjustment screw (P), and the third adjustment screw (Q) changes, so as to achieve the effect of three-point positioning adjustment.

[0055] This utility model provides a dental analyzer (1), wherein the analyzer bushing (143) is made of copper and is made by drilling a hole in the center of a copper pillar.

[0056] This utility model provides a dental measuring instrument (1), wherein the bearing part (108) is a thrust bearing, which has high parallelism and accuracy during pivoting.

[0057] Depend on Figure 2 As shown, this utility model provides a dental measuring instrument (1), wherein the spindle seat (12) is locked onto the base (11) from bottom to top by a number of screw fasteners (111).

[0058] Depend on Figure 3As shown, this utility model provides a dental measuring instrument (1), wherein the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) are evenly arranged in a ring around the adjusting base (22).

[0059] Depend on Figure 7 As shown, this utility model provides a method for precisely determining the insertion and removal path of a dental mold using a dental analyzer (1). The dentist adjusts the angle of the dental mold (30) using the fine-tuning handle (222) to initially determine the front-to-back and left-to-right tilt of the mold. Figure 10 As shown, the tooth mold is positioned close to the first adjusting screw, the second adjusting screw, and the third adjusting screw in the front-back and left-right directions, respectively. Figure 8 As shown, since adjusting one of the first adjusting screw (O), the second adjusting screw (P), or the third adjusting screw (Q) does not simultaneously affect the other two, the adjusting screws can be used to precisely adjust and determine the front-back and left-right tilt of the gear mold (30). Therefore, it can be determined that adjusting the first adjusting screw, the second adjusting screw, and the third adjusting screw can precisely adjust the front-back and left-right directions of the gear mold. Figure 24 , 25 As shown, the measuring needle (151) measures the tooth portion of the dental mold (30) to serve as a reference for the path of insertion during denture manufacturing. This precisely adjusts and determines the insertion and removal path of the dental mold (30), allowing the fabricated denture to be worn at a better angle. This method precisely determines the path of insertion of the dental mold on a dental surveyor.

[0060] Depend on Figures 7 to 11As shown, this utility model provides a method for recording and reproducing the insertion and removal path of a dental mold using a dental surveyor (1). This method is performed through the following steps: - (a) Recording the insertion and removal path of the dental mold (30). After the dentist measures the dental mold (30) on the dental surveyor, they determine the direction and inclination of the mold, i.e., the insertion and removal path, using the three-point equal-height positioning method (Tripoding). (1) Method), select three separate equal height points on the surface of the dental model (30) to form a first positioning point (A), a second positioning point (B), and a third positioning point (C). The dentist hands the dental model (30) to the dental model technician to continue to reproduce the loading and unloading path of the dental model and to make the denture; (2) Reproducing the loading and unloading path of the dental model. Before making the denture, the dental model technician must reproduce the loading and unloading path of the dental model (30) determined by the dentist on the dental analyzer. The dental model technician adjusts the position and angle of the dental model (30) on the dental analyzer (1) so that the first positioning point (A), the second positioning point (B), and the third positioning point (C) are adjusted to be at the same height to reproduce the loading and unloading path of the dental model (30).

[0061] Depend on Figure 11 As shown, this utility model provides a method for reproducing the path of insertion of a cast on a dental surveyor using a dental analyzer (1). This method involves the following steps: selecting contour points on the surface of the dental sample (30), resulting in a first positioning point (A), a second positioning point (B), and a third positioning point (C). The first positioning point (A), the second positioning point (B), and the third positioning point (C) form a triangle. Figure 7 As shown, by rotating the fine-tuning handle (222), the fine-tuning member (221) can be released, thereby adjusting the rotating part (212) and changing the angle and direction of the clamping table (21). Figure 9 , Figure 10 As shown, the angle of the tooth mold (30) is adjusted so that the first positioning point (A), the second positioning point (B), and the third positioning point (C) are close to the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) respectively, and at the same time, the heights of the first positioning point (A), the second positioning point (B), and the third positioning point (C) are as consistent as possible to complete the initial correction. Figure 13 , Figure 14As shown, firstly, using the second adjusting screw (P) as a reference, the height of the second positioning point (B) is measured using the tip of the measuring needle (151), and the first adjusting screw (O) is adjusted to adjust the height of the first positioning point (A) so that the first positioning point (A) and the second positioning point (B) are at the same height. The height is then confirmed using the measuring needle (151). Figure 16 As shown, adjust the third adjusting screw (Q) to adjust the height of the third positioning point (C) so that the first positioning point (A) and the third positioning point (C) are at the same height. Figure 13 As shown, the first adjusting screw (O) is then adjusted to adjust the height of the first positioning point (A), making the first positioning point (A) equal to the height of the second positioning point (B). After repeated adjustments, the first positioning point (A), the second positioning point (B), and the third positioning point (C) are made to be at the same height, so that the dental mold (30) is in the correct angular direction. This facilitates the collaborative work between the dentist and the dental mold technician, thereby further improving work efficiency and the accuracy of denture fabrication.

[0062] The principle of the dental analyzer of this utility model is explained in detail as follows: The fine-tuning handle (222) adjusts the angle of the dental mold (30) to initially determine the front-to-back and left-to-right tilt of the dental mold, so that the first positioning point (A), the second positioning point (B), and the third positioning point (C) are close to the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) respectively. Therefore, it can be determined that when adjusting the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) to adjust the first positioning point (A), the second positioning point (B), and the third positioning point (C), the height change of one point will be higher than that of the other two.

[0063] Depend on Figures 7 to 10 As shown, the repositioning method for the insertion path of a cast on a dental surveyor is described. Step 1: Adjust the angle and position of the cast (30) using the fine-tuning handle (222) so that the first positioning point (A), the second positioning point (B), and the third positioning point (C) on the cast are close to the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (P), respectively, and the first positioning point (A), the second positioning point (B), and the third positioning point (C) are approximately at the same height.

[0064] Depend on Figure 12As shown, using the principles of projection geometry, the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) projected onto the H plane, V plane, and L plane are referred to as points O, P, and Q, respectively. The lines connecting any two of these three points are referred to as the OP line, the PQ line, and the OQ line.

[0065] Furthermore, the first positioning point (A), the second positioning point (B), and the third positioning point (C) projected onto the H-plane, V-plane, and L-plane will be referred to as points A, B, and C, respectively, for ease of reading and understanding.

[0066] Depend on Figure 12 As shown, using the principles of projection geometry, assume point O is the contact point between the first adjusting screw (O) and the base (11), point P is the contact point between the second adjusting screw (P) and the base (11), and point Q is the contact point between the third adjusting screw (Q) and the base (11). In the three-dimensional coordinate system, there is an H plane, a V plane, and an L plane. The H plane is an imaginary plane of the base (11). Points O, P, and Q must lie on the H plane. The V plane is the plane through which the OP line passes and is perpendicular to the OP line. The L plane is the plane through which the PQ line passes and is perpendicular to the PQ line. The V plane and the L plane are perpendicular to the H plane, but the V plane and the L plane are not necessarily perpendicular to each other.

[0067] Depend on Figures 13 to 14 As shown, this describes the repositioning method for the insertion path of a cast on a dental surveyor. Step two: Adjust the height of the first positioning point (A) using the first adjusting screw (O), and adjust the height of the second positioning point (B) using the second adjusting screw (P), so that the first positioning point (A) and the second positioning point (B) are at the same height.

[0068] Depend on Figure 15 As shown, using the principles of projection geometry, the projection diagrams of points A, B, and C on the V plane are shown. Points A and B are at the same height, while point C is at a lower height. The height difference between the three points is hc, and the line OP coincides at a single point.

[0069] Depend on Figure 16 As shown, in step three, use the third adjusting screw (Q) to adjust the height of the third positioning point (C) so that the first positioning point (A) and the third positioning point (C) are at the same height. Figure 17 As shown, points A, B, and C rotate about line OP as an axis.

[0070] Depend on Figure 18As shown, using the principles of projection geometry, points A, B, and C are now rotated around OP in the projection diagram of the V plane until they are at the same height. The original relationship of points A and B being at the same height in step two has changed, and the height difference of the three points is hb. The mathematical relationship is hc:hb=AC:AB, and hc is much larger than hb, indicating that the height difference of the three points has decreased.

[0071] Depend on Figure 19 As shown, using the principles of projection geometry, in the projection diagram of points A, B, and C on the L plane, points A and C are at the same height, while point B is higher. The height difference between the three points is hb, and the PQ line coincides as a single point.

[0072] Depend on Figure 20 As shown, in step four, adjust the height of the first positioning point (A) using the first adjusting screw (O) so that the first positioning point (A) is at the same height as the second positioning point (B). Figure 21 As shown, points A, B, and C rotate about line PQ.

[0073] Depend on Figure 22 As shown, using the principles of projection geometry, in the projection diagram of points A, B, and C on the L plane, points A and B are at the same height while point C is at a lower height, and the height difference between the three points is hc". The PQ line coincides as a single point.

[0074] Based on the above principles, it can be observed that the height difference of the three points decreases from hc to hb, then to hc", and gradually decreases to an almost indistinguishable size, thus making the three points equal in height.

[0075] Therefore, by repeatedly adjusting the height of the adjusting screw, the height difference between the three positioning points will gradually decrease until the first positioning point (A), the second positioning point (B), and the third positioning point (C) are at the same height. The user can then adjust the dental mold (30) to the correct angle and direction, thus completing the repositioning of the dental mold on the dental surveyor.

[0076] Depend on Figure 24 and Figure 25 As shown, the measuring needle (151) measures the tooth portion of the dental mold (30) to serve as a reference for the wearing angle during denture manufacturing, so that the manufactured denture can be worn at a better angle.

[0077] In summary, the dental measuring instrument of this invention has the following advantages: (i) It can precisely adjust and determine the loading and unloading path of the dental mold (30). Adjusting one of the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) will not affect the other two at the same time, so the front-back and left-right tilt of the dental mold (30) can be precisely adjusted; (ii) The adjusting base (22) can adjust the angle and direction of the dental mold (30), so that the first positioning point (A), the second positioning point (B), and the third positioning point (C) can be initially brought close to the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q) respectively, and at the same time, the first positioning point... (A) The heights of the second positioning point (B) and the third positioning point (C) are as equal as possible, so as to quickly complete the preliminary correction; (III) The local height of the tooth mold (30) can be adjusted by the first adjusting screw (O), the second adjusting screw (P), and the third adjusting screw (Q), so as to quickly, intuitively, easily, and accurately perform three-point equal height positioning; (IV) The use of thrust bearings can eliminate the parallelism error caused by the shaft hole tolerance between the first measuring arm (13) and the second measuring arm (14) and between the first measuring arm (13) and the shaft seat (12), and use The ball spring screw (101) eliminates the perpendicularity error caused by the tolerance of the shaft hole between the measuring rod (15) and the measuring rod bushing (143), so that the shaft seat (12), the first measuring arm (13), the second measuring arm (14), and the measuring rod (15) can pivot relative to each other and maintain extremely high parallelism and perpendicularity; (V) The shaft seat (12), the first measuring arm (13), and the second measuring arm (14) can pivot relative to each other, and with the measuring needle (151), the height of the first positioning point (A), the second positioning point (B), and the third positioning point (C) can be quickly measured. The method of measurement of the first positioning point (A) and the second positioning point (B) can be adjusted to the same height, and then iteratively approximate the two points between the third positioning point (C) and the second positioning point (B) to reduce the height error, thereby quickly bringing the first positioning point (A), the second positioning point (B) and the third positioning point (C) to the same height, so that the dental model (30) is in the correct angle and direction, which is conducive to the collaborative work of the doctor and the dental model technician, and further improves the work efficiency.

[0078] The above description is only a preferred embodiment of this utility model and should not be construed as limiting the scope of this utility model; that is, all equivalent changes and modifications made in accordance with the scope of the patent application of this utility model should still fall within the scope of this utility model patent.

Claims

1. A dental doser, characterized in that, It comprises a scale and a scale holder, wherein: The scale comprises a base, a shaft holder, a first scale arm, a second scale arm and a scale rod, the shaft holder is locked on the base, the first scale arm is pivoted with the shaft holder, the second scale arm is pivoted with the second scale arm, so that the shaft holder, the first scale arm and the second scale arm can be pivoted with each other, the second scale arm is equipped with the scale rod, and the scale rod is equipped with a scale needle for scaling a tooth mold; The scale holder comprises a clamping table and an adjusting base, the scale holder is placed on the base, the clamping table can be used to clamp a tooth mold and is equipped with a clamping adjusting part for adjusting the tightness of clamping, the bottom of the clamping table is equipped with a spherical rotating part, the central part of the adjusting base is equipped with a fine adjustment part, the fine adjustment part is locked with a fine adjustment handle, the rotating part is clamped on the fine adjustment part, and rotating the fine adjustment handle can loosen the fine adjustment part to adjust the rotating part so that the angle and direction of the clamping table are changed, the top of the adjusting base is equipped with a top sleeve for limiting the position of the rotating part, the adjusting base is locked with a first adjusting screw, a second adjusting screw and a third adjusting screw, the height of the clamping table corresponding to the first adjusting screw, the second adjusting screw and the third adjusting screw is changed by the forward and backward movement of the first adjusting screw, the second adjusting screw and the third adjusting screw, so as to achieve the effect of three-point positioning adjustment.

2. The dental dosimeter of claim 1, wherein, The pivot shaft of the shaft core seat is arranged in the shaft hole, the second measuring arm passes through a second pivot hole and a measuring rod hole, the second pivot hole and the measuring rod hole are respectively provided with a third installation hole and three fourth installation holes, a measuring rod sleeve is arranged in the measuring rod hole, a measuring rod is arranged in the measuring rod sleeve, the measuring rod can be arranged with a measuring needle to measure a tooth mold, a top stop portion is arranged at the top of the measuring rod, the top stop portion can be arranged on the measuring rod sleeve to limit the movement range of the measuring rod, the fourth installation holes at the top and the bottom are arranged with a ball spring screw, the ball spring screw gives the measuring rod an average pressure to eliminate the tolerance of the measuring rod in the measuring rod sleeve to improve the accuracy, the fourth installation hole in the middle is arranged with a measuring rod locking screw arranged on the measuring rod, and the position of the measuring rod can be adjusted and fixed by tightening or loosening the measuring rod locking screw, the first pivot hole and the second pivot hole are respectively arranged with a sliding sleeve, the two sliding sleeves pass through a pivot shaft, a stop screw is arranged in the second installation hole and arranged on the pivot shaft to fix the pivot shaft, so that the shaft core seat, the first measuring arm and the second measuring arm can be pivoted relative to each other, the first measuring arm is arranged with a stop screw arm on the first installation hole and the pivot shaft to adjust and fix the angle between the shaft core seat and the first measuring arm, the second measuring arm is arranged with a stop screw arm on the third installation hole and arranged on the pivot shaft to adjust and fix the angle between the first measuring arm and the second measuring arm, the pivot shaft and the pivot shaft are provided with a screw cover at the top to limit the top position, the first measuring arm and the second measuring arm are provided with a plurality of spacers and bearing portions to enhance the smoothness of pivoting, so that the shaft core seat, the first measuring arm and the second measuring arm are in a linkage relationship.

3. The dental doser of claim 2, wherein, The measuring rod sleeve is made of copper, and the measuring rod sleeve is made of a copper column drilled in the center.

4. The dental doser of claim 2, wherein, The bearing portion is a thrust bearing.

5. The dental doser of claim 2, wherein, The shaft core seat is locked on the base from bottom to top by a plurality of screw members.

6. The dental doser of claim 2, wherein, The first adjusting screw, the second adjusting screw and the third adjusting screw are evenly arranged on the adjusting base.

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