118 results about "Missed tooth" patented technology

The invention provides an auxiliary dental implant generation method based on a diffusion model, and relates to the technical field of stomatology, and the method comprises the steps: obtaining historical patient oral cavity CBCT image data, carrying out the preprocessing of the historical patient oral cavity CBCT image data, obtaining a CBCT image data set, training a multi-task segmentation network through the CBCT image data set, and obtaining a CBCT image data set; obtaining an intra-oral tissue segmentation result in the segmentation network; respectively training a detection network from three dimensions of a cross section, a coronal plane and a sagittal plane by using an intraoral tissue segmentation result; obtaining detection results in three directions of a cross section, a coronal plane and a sagittal plane by using a detection network; fusing the detection results in the three directions of the cross section, the coronal plane and the sagittal plane, constructing a three-dimensional bounding box by using a majority voting algorithm, and obtaining an edentulous region; the intraoral segmentation result and the edentulous area serve as prompt information, the network is guided through the iteration process to generate the post-implantation effect, the implantation effect obtained through the method is high in accuracy, and a more accurate auxiliary tool can be provided for stomatology.

A custom tool for forming a dental restoration in a mouth of a patient includes a one-piece mold body providing for a customized fit with at least one tooth of the patient, the one-piece mold body including an occlusal portion forming an occlusal surface corresponding with an occlusal surface of the tooth, a mesial proximal portion forming a mesial proximal surface corresponding with a mesial proximal surface of the tooth, and a distal proximal portion forming a distal proximal surface corresponding with a distal proximal surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth. The occlusal portion, the mesial proximal portion, and the distal proximal portion are based on three-dimensional scan data of the mouth of the patient.

The invention discloses a diffusion model dental crown design method based on multi-view consistency and shape prior, and relates to the technical field of computer vision, and the method comprises the following steps: training a three-dimensional dental nerve radiation field model through an input Shining3D dental crown design data set, and further rendering to obtain a multi-view RGB image; the hidden space representation of the multi-view image is obtained through an encoder, and the measurement of the consistency between views is determined through a multi-view correlation calculation module; modeling is carried out on joint image distribution of multiple views, consistency measurement, obtained through a multi-view correlation calculation module, between the views is introduced into joint probability distribution modeling, and multi-view images are edited through a multi-view fractional distillation sampling method. According to the method, the basic framework updated by the iterative data set is adopted, the model framework is divided into two stages of multi-view editing and nerve radiation field fine tuning, missing teeth with 3D consistency and without collision conflict are automatically generated, and the efficiency and quality of dental crown design are improved.

The invention provides an oral implant surgery planning method and system and a storage medium. The method comprises the steps that an oral CT three-dimensional model is segmented through an oral model segmentation deep learning model to obtain a tooth CT three-dimensional model, a jaw bone CT three-dimensional model, a neural tube CT three-dimensional model and a blood vessel CT three-dimensional model; generating a dental arch curve based on the tooth CT three-dimensional model; missing tooth coordinate data, missing adjacent tooth coordinate data and implantation area coordinate data are obtained through analysis; analyzing to obtain the axial data of the missing adjacent teeth, and analyzing to obtain the axial data of the implant and the coordinate data of the implantation point according to the axial data of the missing adjacent teeth; performing analysis to obtain safe boundary area coordinate data of the implant; and screening in the implant database to obtain the implant type. A key anatomical structure in an oral cavity CT three-dimensional model is automatically identified and segmented through an oral cavity model segmentation deep learning model, a safety boundary area is calculated, an optimal implant scheme is screened out based on an implant library, and decision support is provided for doctors.

The invention relates to a method and a system for improving oral cavity digital data fitting accuracy by using a noninvasive 3D modeling marking module. The method comprises the following steps: designing and obtaining a standardized marking module with a plurality of digital marking points on the surface through 3D modeling; non-invasively and reversibly adhering to the surface of an abutment which is used as an auxiliary reference system; the method comprises the following steps: acquiring oral cavity digital model data with a marking module after different intervention processing or in different data acquisition modes, detecting point-line-surface features of the marking module and preferentially matching, and default that corresponding data are overlapped and established in the same three-dimensional coordinate reference system to finish optimal fitting alignment; therefore, the digital data fitting accuracy of the oral cavity is improved; the marking module-assisted fitting method can be used for 1) comparing the accuracy of different digital data acquisition modes; 2) multi-unit temporary tooth data transfer errors are reduced; and (3) the acquisition error of the missing occlusion data of multiple teeth is reduced, so that the precise design of the target prosthesis is assisted.

The invention discloses a gear fault diagnosis method and system based on piezoelectric stress wave signal active sensing, and relates to the technical field of fault diagnos.A piezoelectric sensing unit is arranged on a tested gear, meshing impact stress waves are captured in real time in a single-to-periodic mode, and a fault diagnosis result is obtained. A high-resolution time-angle combined waveform is obtained through high-pass-envelope-angle domain interpolation, and transient energy imaging is achieved; rapid wave crest counting is executed, emergency faults such as tooth missing and tooth breakage are found instantly, comprehensive criteria are constructed according to absolute peak values, relative deviation and adjacent tooth comparison three-dimensional features, tooth-by-tooth mapping is carried out, and anomalies are marked; and fusing the abnormal tooth ratio and the average severity to generate a damage index, continuously tracking the evolution trend of the abnormal tooth ratio, automatically distinguishing early warning and progressive degradation, completing full life cycle monitoring from micro-crack to peeling under a non-stop condition, outputting emergency, early warning and degradation three-level prompts, and realizing early warning. And the operation and maintenance safety and economy of high-reliability scenes such as wind power and rail transit are improved.

Provided herein are methods and apparatuses for analyzing a patient's dental arches in order to generate a treatment plan for the dentition. In particular described herein are methods and apparatuses for analyzing a patient's dental arches when the patient is missing one or more teeth. Methods and apparatuses are provided to properly number the teeth of a patient's arches after a dental scan, including automatically detect missing teeth after a dental scan and estimating the dimensions of the missing teeth. Methods and apparatuses are provided to perform an analysis of the patient's arches that uses the estimated dimensions of the missing teeth. Methods and apparatuses for designing and manufacturing the aligner are also provided.

A custom tool for forming a dental restoration in a mouth of a patient includes a one-piece mold body providing for a customized fit with at least one tooth of the patient, the one-piece mold body including an occlusal portion forming an occlusal surface corresponding with an occlusal surface of the tooth, a mesial proximal portion forming a mesial proximal surface corresponding with a mesial proximal surface of the tooth, and a distal proximal portion forming a distal proximal surface corresponding with a distal proximal surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth. The occlusal portion, the mesial proximal portion, and the distal proximal portion are based on three-dimensional scan data of the mouth of the patient.

The invention provides a dental implant robot path generation method. The method specifically comprises the following steps: constructing a tooth space pose vector; constructing a regression model for predicting spatial features of target missing teeth by combining spatial pose features of opposite-side homonymous teeth and upper and lower occlusal teeth, and predicting spatial positions and attitude angles of the target missing teeth; tCP calibration is carried out on the dental implant robot; carrying out TCF calibration on the dental implant robot; constructing a spatial transformation relation between an end effector of a mechanical arm of the robot and an external visual positioning system; constructing a spatial transformation matrix between the digital model and the entity printing model by adopting a point cloud registration technology; an initial obstacle avoidance path of the mechanical arm is constructed based on a fast expansion random tree sampling algorithm, and meanwhile, smoothing and speed regulation are performed on a joint track through polynomial interpolation and B spline curve interpolation in combination with an improved algorithm RRT *. According to the technical scheme, the problems that in the prior art, planting errors are large, and the fitting degree is not high are solved.

The invention relates to the technical field of intelligent lamp mirrors, in particular to an intelligent lamp mirror for washing of children, which comprises a mirror module, an inner monitoring camera and a tooth cleaner, and the tooth cleaner is provided with a cleaning groove, a plurality of hardness controllers and a plurality of cleaning brushes. The hardness controller is used for controlling the tall and straight degree of the cleaning brush, so that the friction acting force is dynamically regulated and controlled, stubborn stains are removed, and meanwhile excessive abrasion of enamel is prevented. And on the other hand, the stiffness of the cleaning brush corresponding to the tooth missing position can be reduced through the hardness controller according to the tooth missing condition in the oral cavity of the user, so that the stimulation to gingiva at the tooth missing position is reduced, and the tooth cleaning comfort is improved. The functions of monitoring and cleaning are achieved, and the problems that the cleaning effect is not ideal and teeth and gingiva are damaged due to uncontrollable force of a traditional tooth cleaning tool are solved.

A custom tool for forming a dental restoration in a mouth of a patient. The custom tool includes a facial mold body for a patient-specific, customized fit with the facial side of at least one tooth of the patient, wherein the facial mold body includes a restorative portion, at least one aperture aligned with a portion of a surface of a tooth to be restored and at least one door having an inner surface forming a portion of the mold cavity encompassing missing tooth structure of the tooth to be restored, wherein the door mates with the aperture; a lingual mold body for a patient-specific, customized fit with the lingual side of the tooth of the patient, wherein the lingual mold body includes a restorative portion; wherein the facial mold body and lingual mold body are configured to interlock together; and wherein the facial mold body and lingual mold body are configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of at least one tooth to be restored.

The application discloses a full-automatic tea picking and pruning integrated machine, which comprises a rack and a pruning unit arranged on the rack; the pruning unit comprises reciprocating staggered driving cutters and a plurality of pruning teeth arranged on the cutters; the pruning unit is horizontally slidably arranged on the rack, and a driving motor for driving the pruning unit to reciprocatingly slide is arranged on the rack; the driving motor is started to realize the horizontal reciprocating displacement of the pruning unit, so as to compensate for the pruning gap of the cutters in the tooth missing state; the detection circuit composed of the resistance rod, the wire and the elastic guide sheet is arranged in the pruning tooth, so that the number of broken teeth can be accurately positioned in real time and automatically, and then the controller drives the servo push rod and the motor to drive the whole pruning unit to move horizontally, so that the intact pruning tooth compensates for the pruning gap caused by the missing tooth.

The utility model discloses a complete denture teaching aid. An upper jaw bone and a zygomatic arch are integrally connected, and the upper jaw bone and a lower jaw bone are oppositely arranged at intervals; the upper false tooth is detachably connected with the upper jawbone, and the lower false tooth is detachably connected with the lower jawbone; the two telescopic pieces are fixedly connected to the side portion of the zygomatic arch and the side portion of the mandible respectively, and the fixed ends of the two telescopic pieces are connected to the periphery of the outer side of the zygomatic arch and the top of the outer side of the mandible respectively. The adjusting parts are arranged among the corresponding telescopic parts, the zygomatic arch and the mandible in a suspended mode, and the adjusting parts are fixedly connected with the movable ends of the corresponding telescopic parts respectively. The upper jawbone is integrally connected with the zygomatic arch and is arranged opposite to the lower jawbone at an interval, and the upper jawbone and the lower jawbone in a real oral cavity are simulated. The upper false tooth and the lower false tooth are detachably connected to the upper jawbone and the lower jawbone respectively and are used for simulating and replacing missing teeth. The stretching length and angle of the telescopic piece are controlled through the adjusting piece, and the relative distance and position relation between the maxilla and the mandible are adjusted, so that the alignment process of the maxilla and the mandible is displayed in real time.

The present application relates to the technical field of image data processing, in particular to a missing tooth shape intelligent reconstruction method based on contralateral tooth mirror image transformation. According to the patient's masseter axial ultrasound image and temporal muscle axial ultrasound image, the robustness of each side of the masticatory muscle of the patient's both cheeks is determined; the average wear degree of each side of the patient's both cheeks is measured, and then a regression equation of the average wear degree and the robustness is constructed; the coordination coefficient between the missing tooth side and the contralateral side of the patient is determined by using the regression equation, and then it is judged whether the contralateral homonym tooth of the missing tooth needs to be corrected; if correction is needed, the wear degree correction coefficient of the contralateral homonym tooth is constructed, and then the contralateral homonym tooth of the missing tooth is corrected, and the missing tooth shape reconstruction is carried out based on the corrected contralateral homonym tooth. The present application corrects the contralateral homonym tooth of the missing tooth, so that the missing tooth shape reconstruction is more consistent with the dynamic coordination of masticatory movement.

The application provides a three-dimensional implant crown intelligent selection and generation method based on U-Net, comprising the following steps: converting a three-dimensional tooth model in STL format into a high-resolution two-dimensional projection image; taking a U-Net network structure with VGG16 as a backbone network, combining a bar pooling module, and designing a neural network model for accurately capturing tooth sequential arrangement features; training the neural network model by using an adaptive learning rate adjustment strategy and a cosine annealing learning rate scheduling strategy, and performing semantic segmentation on the two-dimensional projection image to obtain a 2D tooth classification result image; identifying missing tooth labels based on the 2D tooth classification result image, calculating the center points of left and right adjacent teeth of the missing tooth, calculating the center position coordinates of the missing tooth in the 2D image through the center points of the left and right adjacent teeth, and mapping the center position coordinates to a three-dimensional space to obtain three-dimensional center coordinates of the missing tooth; and moving the template tooth center point to the three-dimensional center coordinates of the missing tooth to generate a three-dimensional crown model that matches the missing tooth position.

This invention belongs to the field of dental medical technology, specifically relating to an automatic positioning method, electronic device, and storage medium for dental template teeth. The method includes: acquiring a patient's dental arch model, the cervical margin of a restoration, and a template tooth model; determining the dimensional characteristics of the template tooth; performing preliminary overall matching of the template tooth; extracting the tooth portions from the dental arch and fitting a dental arch curve; calibrating the position and size of the template tooth based on the dental arch curve, including determining the target position and orientation of the restoration based on the cervical margin and the dental arch curve for restored teeth, and determining and locating the missing tooth based on the projection of adjacent restorations, and scaling it according to the morphology of the cervical margin or the arc length of the missing tooth interval. This invention achieves precise initial positioning and adaptation of the template tooth through an automated algorithm, solving the problems of cumbersome and inefficient manual positioning in existing technologies.

The application relates to a semi-solid denture frame which comprises two retention clamps, two connecting bodies and a tooth site support; the two connecting bodies are located between the two retention clamps along a first circumferential direction; the tooth site support is located between the two connecting bodies along the first circumferential direction and is used for supporting a false tooth and a base at a missing tooth site; the connecting body comprises a connecting part and a plug-in part; the connecting part is fixedly connected with the retention clamp; the plug-in part is connected and locked at a first position or a second position on the connecting part; one end of the plug-in part, which is away from the connecting part along the first circumferential direction, is provided with a second retention groove which penetrates through the upper end of the connecting part along a first direction; two connecting protrusions are fixed on the tooth site support and are slidably embedded into the two second retention grooves along the first direction, so that the tooth site support is fixedly connected with the connecting body. The semi-solid denture frame has the effect of mounting the false tooth in the oral cavity.

The application relates to the technical field of image processing, and provides a tooth detection method and device, a terminal device and a readable storage medium, the method comprising the following steps: acquiring a CT image of a patient's oral cavity and preprocessing the CT image to obtain a three-dimensional tooth region image; performing post-processing by using a tooth detection model to obtain a tooth detection result of the patient; wherein the tooth detection model comprises a full-tooth segmenter, a tooth crown and root segmenter and a tooth crown classifier; when the post-processing is performed, the three-dimensional tooth region image is input into the full-tooth segmenter to obtain a full-tooth segmentation result; the full-tooth segmentation result and the CT image are input into the tooth crown and root segmenter to obtain a tooth crown and root segmentation result; and then the tooth crown and root segmentation result and the CT image are input into the tooth crown classifier to obtain a tooth crown classification result. The method can accurately obtain tooth segmentation information and missing tooth position information of the patient, and has high calculation speed.

The application discloses a kind of numerical control processing arbitrary tooth number cutter vibration signal adaptive identification analysis method, belong to aviation manufacturing field, including the following steps: based on vibration sensor obtains cutter vibration data, parses vibration data and draws vibration data image v_image, design vibration image feature descriptor realizes feature extraction, based on the feature difference evaluation function designed in two-dimensional space feature distribution map obtains feature difference key point, according to adaptive regional threshold value judging mode and neural network identification mode obtains identification result, fusion result and comparison obtain signal output.The application is suitable for analyzing and identifying the wear amount, broken tooth, missing tooth, missing and other abnormalities or defects of cutter tooth, based on adaptive identification and result fusion analysis, can further improve the accuracy of tool abnormality identification, reduce false alarm rate and other technical indicators, reduce the possibility of workpiece scrap caused by tool abnormality, thereby avoiding or reducing economic loss.

The utility model relates to the technical field of plastic film cutting tools, and discloses a plastic film cutting tool which comprises a machine shell, a film containing groove is transversely formed in the machine shell, a blade groove is formed above the film containing groove, and a T-shaped cutting knife is inserted into the blade groove. When a plastic film needs to be cut, the plastic film penetrates through a film containing groove, then a pressing rod is pressed downwards, in the downward moving process of the pressing rod, an L-shaped baffle and a pressing plate are firstly extruded through a second spring, the pressing plate is made to press and fix the plastic film needing to be cut, and at the same time, when the pressing rod moves downwards, a second tooth groove moves downwards to drive a special-shaped gear to rotate; the special-shaped gear rotates to drive the T-shaped cutting knife with the first tooth groove formed in the other side to move upwards, when the special-shaped gear rotates to the tooth-missing part to make contact with the first tooth groove, the T-shaped cutting knife rebounds downwards rapidly under extrusion of the first spring, and therefore the plastic film is cut through vertical vibration of the T-shaped cutting knife.

The shapes and sizes of teeth are greatly different in different crowds, and in addition, the problems of crowding, missing, overlapping and the like also exist, so that the complexity of tooth positioning is increased. At present, tooth segmentation and positioning are mainly based on tooth X-ray films, and shooting of the X-ray films in remote areas with backward medical resources is limited. In order to solve the above problems, a deep convolutional neural network is planned to be used in the research, and teeth are positioned and classified based on intraoral images. The method comprises the following steps: firstly, preprocessing a collected data set to improve the capturing capability of important features; secondly, a mixed attention mechanism is introduced into the project, and important information in feature maps of different scales is accurately captured; and finally, the convergence and generalization ability of the model are improved through a residual module. The specific innovation points are as follows: 1, a mixed attention mechanism is introduced into a basic framework based on U-Net + + to dynamically adjust the weight of each feature map in the network; 2, the low-level features and the high-level features are connected by adopting skip connection, so that the problem of local information loss possibly caused by the low-level features and the high-level features can be solved;

The present invention discloses an implant bridge fatigue test device and method. The implant bridge fatigue test device is applied to the implant bridge, comprising: a base connected to the implant bridge; a loading mechanism; a pad installed on the loading mechanism, the loading mechanism pressurizes the implant bridge through the pad, and the position where the implant bridge is connected to the base is staggered with the position of the pad. The implant bridge fatigue test device and method of the present invention fixes the implant bridge on the base, and uses the loading mechanism to pressurize the implant bridge through the pad. Since the implant bridge is fixed at the patient's tooth loss position through a dental implant, the part of the implant bridge supported by the dental implant has better pressure bearing performance. Therefore, in the fatigue test device, the position where the implant bridge is connected to the base is staggered with the position of the pad, so as to perform fatigue testing on the position of the implant bridge with poor pressure bearing performance, thereby obtaining a relatively accurate fatigue test result. The present invention can be applied to the field of dental implant bridges.

The invention provides a method and device for guiding a mechanical arm trolley and a dental chair to position and related equipment. An infrared binocular camera is used for recognizing the change of an array at the tail end of a mechanical arm so as to convert the change into the position change of the mechanical arm trolley; the change of the mouth clamp array is recognized by using the infrared binocular camera, the position change of the target tooth missing position of a patient can be obtained through dental jaw registration, the position change is further converted into the change of the position and angle of the dental chair, and finally, an operator is guided according to the preset relative position relation between the mechanical arm trolley and the dental chair. Compared with the prior art, the method provided by the invention has the advantages that the operator can be graphically guided to place the trolley and the dental chair in reasonable positions in the intraoperative software after calibration and registration are completed, the operator only needs to operate according to the guide whether the operator is skilled or not, and the whole operation process can be smoothly completed after the trolley and the dental chair are placed according to the guide. Meanwhile, the method provided by the invention can reduce the operation time.

The invention relates to the technical field of forensic dental medicine and restorative dentistry, and discloses an artificial intelligence-driven defective tooth automatic restoration and reconstruction method, which comprises the following steps: S1, collecting a human real tooth model and collecting a corresponding two-dimensional image and a three-dimensional model to obtain an original data set; s2, processing the original data set by using a traditional image processing method to obtain an enhanced data set, and randomly dividing the enhanced data set into a training set, a verification set and a test set in a ratio of 8: 1: 1; and S3, constructing a tooth restoration and reconstruction network structure, wherein the overall network structure comprises three sub-networks: a tooth image restoration network, a tooth image preprocessing network and a tooth three-dimensional reconstruction network. According to the method, the repairing process of the defective teeth is simplified, manual participation is reduced, and the tooth repairing process is more intelligent, so that the repairing efficiency is remarkably improved, and meanwhile, the requirement for diagnosis experience of doctors is also reduced.

Methods for a personalized root-shaped implant are disclosed. The method for generating a personalized root-shaped implant model includes capturing a CBCT image of a missing teeth area of a patient; performing image segmentation and model reconstruction on the CBCT image and obtains a full-mouth original teeth model; selecting a target tooth model from the full-mouth original teeth model; and processing the target tooth model in a preset strategy such that the personalized root-shaped implant model is generated.

The invention relates to the technical field of tooth restoration, in particular to an oral cavity posterior mold tooth loss restoration method and system based on a metal framework and deep learning, and the method comprises the following steps: firstly, designing a metal framework for fixing a restoration body; acquiring three-dimensional point cloud data of the oral cavity of the patient by using oral cavity scanning equipment; carrying out three-dimensional reconstruction on the tooth at the missing part by utilizing a self-attention implicit function network; and finally, customizing a dental restoration according to the reconstructed three-dimensional tooth model, and mounting the dental restoration on a metal frame. The metal frame is used for fixing the prosthesis, damage to mold teeth on the two sides of the missing tooth position is avoided, and damage to gingiva of the missing tooth position is avoided. The missing teeth are accurately complemented through the self-attention implicit function network, and the aesthetic property and comfort of the prosthesis are improved.

This application provides a protective dental crown, comprising: a dental crown; and a retaining ring detachably connected to the side of the dental crown. The dental crown is fitted onto a target tooth for protecting missing teeth in elderly comatose patients. The retaining ring is fitted onto teeth surrounding the target tooth to secure the dental crown. Applied to comatose elderly patients, the crown covers the missing tooth, and then a retaining ring of appropriate size is fitted onto the patient's healthy teeth to secure the crown. This isolates the defective tooth, preventing contact with oral tissues and complications such as oral ulcers. The solution is simple to operate, convenient to use, and inexpensive, facilitating its widespread adoption.

The utility model provides a zipper tooth separating and counting device. The zipper tooth separating and counting device comprises a supporting base, a zipper separating structure, a zipper combining mechanism and a correlation type detector. The zipper separating mechanism and the zipper combining mechanism are both arranged on the supporting base. A zipper tooth guide groove used for guiding zipper teeth to be combined after zipper separation is formed in the zipper combining mechanism. The correlation type detector is installed on the zipper combining mechanism, the detection end of the correlation type detector is aligned with the zipper tooth guide groove, and the correlation type detector is used for alternately detecting gaps between zipper teeth passing through the zipper tooth guide groove. The zipper tooth counting device has the advantages that the situation of tooth leakage or excessive tooth can be effectively reduced, so that the accuracy of zipper tooth counting can be improved; and an air blowing mechanism is further arranged, dust and other impurities attached to the detection end of the correlation type detector and in the zipper tooth guide groove can be blown off in time, and therefore the situation that the detection accuracy is affected due to the fact that the dust and other impurities are attached to the correlation type detector can be avoided.

The present application relates to the technical field of intelligent lamp mirror, especially to a kind of intelligent lamp mirror for children washing, including mirror module, internal monitoring camera and teeth cleaner, the teeth cleaner is provided with cleaning groove, multiple hardness controllers and multiple cleaning brushes.The present application controls the neatness of cleaning brush by hardness controller, thereby realizing dynamic regulation of friction force, while preventing excessive wear of enamel when removing stubborn stains.On the other hand, the neatness of cleaning brush can be reduced at the missing teeth by hardness controller according to the missing teeth in user's oral cavity, to reduce the irritation to gums at the missing teeth, thereby improving the comfort of cleaning teeth.The present application realizes the functions of monitoring and cleaning, and overcomes the problems of uncontrolled force of traditional teeth cleaning tools, resulting in unsatisfactory cleaning effect and damage to teeth and gums.

The present invention discloses an implant placement positioning device, comprising a main caliper, a first baffle and a second baffle, wherein the main caliper is provided with a first scale, and the top and bottom of the main caliper are respectively provided with a first slideway; the second baffle is perpendicular to the main caliper and arranged in parallel with the first baffle, the end of the second baffle close to the main caliper is arranged on the first slide bar, the first slide bar is installed on the first slideway, the second baffle is provided with a second scale, the bottom and top of the second baffle are respectively provided with a second slideway, the second slide bar is installed on the second slideway, the second slide bar is provided with an annular hole and a strip hole connected to each other, a positioning rod is provided in the annular hole, a positioning pin is provided at the end of the positioning rod close to the first baffle, and a limit plate is provided at the end of the positioning rod away from the first baffle. The present invention can quickly locate the length, width and midpoint of the missing tooth position by using the first baffle and the second baffle in combination, is easy to operate, has accurate positioning, is simple in structure, has low cost, and is suitable for popularization and use.