35 results about "Dental impaction" patented technology

The invention relates to a manufacturing method of an integrated post core based on a single tooth impression, the integrated post core and a post core system, and relates to the technical field of dental post core repair. By adopting the method, the problems of poor positioning and poor adaptability of the integrated pile core can be solved. The method comprises the following steps: preparing a tooth body of a diseased tooth according to the requirement of full-crown repair, and preparing a root canal pile way of the diseased tooth by using a reamer; performing single tooth impression on the diseased tooth to obtain a diseased tooth post nuclear impression, scanning the diseased tooth post nuclear impression to obtain a digital single tooth impression, and then performing intraoral dentition scanning on the patient; according to a digital single tooth impression and an intraoral dentition scanning result, performing digital design and processing and manufacturing of an integrated post core to obtain an initial integrated post core; and performing model try-on and adjustment on the initial integrated pile core to obtain a target integrated pile core, and performing clinical try-on and bonding on the target integrated pile core.

The invention relates to the technical field of dental fluorosis patient repairing, and discloses a dental fluorosis patient tooth surface defluorination repairing device which comprises a grinding device and a grinding head, a cooling assembly is arranged on one side of the grinding device, and an adsorption assembly is arranged on one side of the grinding device; and the cooling assembly comprises a liquid box, the liquid box is connected with a liquid outlet pipe through a first connecting pipe, an atomizing nozzle is arranged in the liquid outlet pipe, the liquid outlet pipe is fixedly connected to the top of the outer surface of the grinding device, and the atomizing nozzle is located at the top of the grinding head. The invention aims to solve the problems that when an existing defluorination repair device for dental fluorosis is used, friction grinding is generated in a contact core area of a grinding head and a dental surface, local friction heat is easy to damage fragile enamel of a dental fluorosis, dental pulp sensitivity is caused, heat generated by friction between the grinding head and the dental surface cannot be dissipated in time, and the dental fluorosis repair effect is poor. And the problem that the enamel with poor thermal conductivity is easy to have micro-cracks due to local high temperature is solved.

The invention relates to a three-platinum-root-rehmannia root gargle and a preparation method and application thereof, and belongs to the technical field of oral medicine and traditional Chinese medicine application. The invention provides a three-platinum radix rehmanniae gargle. The three-platinum radix rehmanniae gargle comprises the following components in parts by mass: 1-10 parts of rhizoma bletillae, 1-10 parts of radix angelicae, 1-10 parts of rhizoma corydalis, 1-10 parts of cortex dictamni, 1-10 parts of fructus kochiae, 1-10 parts of honeysuckle, 1-5 parts of borneol and 1-5 parts of pseudo-ginseng. The three-platinum-radix rehmanniae gargle provided by the invention locally acts on sensitive areas of diseased teeth and is gargled after treatment, so that the three-platinum-radix rehmanniae gargle has the effects of diminishing inflammation, inhibiting bacteria, resisting tooth sensitivity, dispersing blood stasis, stopping bleeding, promoting tissue regeneration, relieving pain, clearing away heat and toxic materials and the like, effectively relieves tooth pain or sensitivity and protects dental pulp. When being used for preparing the deep caries pulp-protecting treatment medicine, the compound can permeate into dentin or dental pulp in the deep caries pulp-protecting treatment process and after operation, and plays the roles of relieving pain, desensitizing, clearing away heat and toxic materials and the like, so that the dental pulp is protected, and toothache and tooth sensitivity are avoided.

The application relates to a root canal treatment instrument, in particular to a root canal drill and grinding system with an auxiliary positioning guide plate, which is used for root canal treatment of a diseased tooth and comprises a clamping piece, a guide piece, a handset and a bracket type guide plate; the guide piece comprises a guide piece body, a central hole and guide columns; the central hole is arranged at the center of the guide piece body, and the guide columns are symmetrically arranged at the two ends of the guide piece body and take the central hole as the center; a drill needle is arranged on the handset and passes through the central hole; the clamping piece is used for clamping and fixing the guide piece on the handset; the bracket type guide plate comprises a columnar support and a retainer connected to the columnar support; the retainer is wrapped on a fixed tooth to fix the columnar support; the columnar support is symmetrically arranged with guide column insertion slots on the two sides of the diseased tooth, and guide column insertion slot cavities matched with the guide columns are arranged on the guide column insertion slots. Compared with the prior art, the application solves the problems of poor guiding accuracy, small drilling and grinding operation space, high difficulty and narrow discharge channel in the prior art.

The utility model discloses a tooth correcting device. Belongs to the technical field of orthodontics, the orthodontic appliance comprises a plurality of fixing pieces, a connecting piece and a traction assembly, the fixing pieces are suitable for being fixed on a plurality of anchorage teeth in a one-to-one correspondence mode, the traction assembly comprises a traction hook, a connecting buckle and a traction line, the traction hook is provided with a traction end and a connecting end, the traction end is located on the lingual side of an affected tooth, and the connecting end is connected with the connecting piece; or the traction end is located on the cheek side of the diseased tooth, the connecting end is connected with the fixing piece, the connecting buckle is bonded to the side, facing or away from the traction end, of the diseased tooth, and the traction end is connected with the connecting buckle through a traction line so as to apply correction force for correcting jaw locking to the diseased tooth, so that the diseased tooth is reset towards the interior of the alveolar bone, and correction of jaw locking of the diseased tooth is achieved. The traction ends are located on the sides, away from the occlusal surface, of the gingival edges of the corresponding diseased teeth, correction force comprises gingival press-in force, and the diseased teeth can be effectively prevented from stretching in the correction process.

The invention discloses a dental robot master-slave tracking error outer ring pre-correction method based on an SAO-LSTM neural network, relates to the technical field of oral robots, and aims to solve the problems of low positioning precision and poor safety caused by relatively large master-slave tracking error of a dental robot. According to the method, an SAO-LSTM prediction model combined with a snow ablation optimization algorithm is designed so as to approach an inner ring dynamic behavior of a slave hand robot; taking the dynamic interaction data of the master and slave robots as network input, and obtaining a predicted value of a master and slave position tracking error; the range of the predicted value is limited by using the designed safety limiter, so that potential risks in the operation process of the master and slave robots are avoided; and inputting the pre-corrected master hand position instruction into a kinematics planner of an outer ring of the slave hand robot to realize accurate interaction between the tail end of the slave hand robot and the diseased tooth. The result shows that the SAO-LSTM neural network has good generalization ability and prediction performance, so that the master-slave tracking error meets the precision and safety requirements of oral surgery in clinic.

The application relates to the technical field of dental instruments, in particular to an intelligent bite pad integrated with an opening device and a rubber dam clamp, which comprises a rubber dam clamp, the rubber dam clamp comprises two clamping arms and an elastic arc bow, the two clamping arms are connected through the arc bow, a first bite part is arranged on one side of the clamping arms close to the arc bow, a connecting shell is fixedly arranged on the top of the first bite part, a connecting port is arranged on the side, away from the first bite part, of the connecting shell, a second bite part is movably arranged on the connecting shell, an adjusting assembly for adjusting the distance between the first bite part and the second bite part is arranged in the connecting port, and bite grooves are arranged on the sides, away from each other, of the first bite part and the second bite part. During oral treatment, the rubber dam cloth is used to separate the diseased tooth from other oral structures, the diseased tooth is isolated, the patient bites the first bite part and the second bite part, the oral cavity of the patient is supported, and the comfort of the patient is improved.

The invention discloses an AI-assistance-based rapid adaptation method for pre-crowning of children, and belongs to the field of digital diagnosis and treatment of the dental department of children. The method comprises the following steps: 1, importing oral scanning data (. Stl / . Dcm / . Ply format) of a child patient; 2, a doctor selects target diseased teeth in the three-dimensional model; 3, performing AI segmentation on the dental crown, automatically positioning an adjacent point and a cheek-tongue highest point of a single diseased tooth, calculating a near-far intermediate diameter and a cheek-tongue diameter, and positioning a measurement point and calculating the size after AI simulation segmentation positions of a plurality of continuous diseased teeth; 4, simulation matching is conducted on the AI according to the size and the preformed crown model; 5, outputting a TOP3 model, a matching degree score and a three-dimensional superposition comparison graph; and 6, clinically verifying the adaptive effect. According to the method, manual errors are eliminated, second-level matching is achieved, multiple brands are adapted, the crown edge adaptability is improved, the matching time is shortened to 3 seconds per tooth, the measurement error is + / -0.05 mm, and the first-time adaptation rate is larger than or equal to 92%.

The utility model provides a detachable horizontal impacted mandibular wisdom tooth separation guide plate which comprises a bracket guide plate capable of being arranged on an inferior alveolar cavity of a patient in a matched mode, a tooth separation guide plate arranged on the bracket guide plate and a connecting assembly arranged between the tooth separation guide plate and the bracket guide plate. An operator can accurately carry out a tooth division operation according to the positioning of the tooth division guide plate on the diseased tooth, so that the risk of complications such as diseased tooth root breakage and the like is remarkably reduced, positioning according to the experience of the operator is not needed, the operation time is remarkably shortened, the operation quality is improved, and the wound area in the operation is reduced; and the device has the advantages of simple structure, simplicity and convenience in operation, low preparation cost, disposable use and convenience in popularization and implementation.

This invention provides a black triangular restorative patch, comprising an elastically molded patch body. Two sides of the elastically molded patch body are bent to form a covering body. The covering body has injection holes suitable for injecting fluid resin. A traction and pressing wing extends from the outer side of the covering body away from the patch body, with the outer side of the traction and pressing wing extending outwards towards the covering body and the inner side extending inwards towards the covering body. This invention not only allows the patch to fit more tightly against the tooth but also minimizes the gap between the inner side of the traction and pressing wing and the edge of the affected tooth. This ensures a tight seal with the edge of the affected tooth after resin injection, preventing the resin from forming a protrusion and creating a smooth transition. This reduces the workload of subsequent polishing. Furthermore, the resin injection holes on the covering body avoid the problem of resin being introduced through the labial side of the patch, as is common in existing methods. Polishing only requires removing the resin corresponding to the injection hole, improving restorative efficiency.

The invention discloses a digital protective jaw pad and a preparation method thereof, and the preparation method comprises the following steps: 1, carrying out intraoral three-dimensional scanning to obtain a digital model; step 2, a dynamic occlusion relation is recorded by a digitized face bow, and an inresting jaw position is determined; 3, making an occlusion recording silica gel and plaster model; 4, scanning the plaster model, designing a virtual jaw pad in combination with the intraoral scanning digital model, and performing personalized buffering treatment; and step 5, processing the PMMA solid jaw pad by a CAM technology. Whole-course digital precise manufacturing of the protective jaw pad is achieved, occlusion interference of diseased teeth is avoided through the personalized buffering design, the material biocompatibility is good, wearing is comfortable, traumatic teeth or postoperative teeth are effectively protected, and meanwhile the treatment effect and the patient satisfaction degree are improved by combining patient education.

The invention discloses an elastic modulus gradient pile core material and a preparation method thereof, and an elastic modulus gradient pile core prepared from the elastic modulus gradient pile core material. The preparation method comprises the following steps: firstly, preparing a stake-core repair system with matched shape and size by clinically scanning the stake channel shape of a patient, and further preparing a stake-core system with bionic function gradient by simulating the elastic modulus gradient distribution of natural teeth and utilizing an additive manufacturing process. The stress distribution condition of the stake, the stake-tooth interface and the tooth part can be improved, and the service life of the stake-core repair diseased tooth can be prolonged.

A method of using an oral cavity CBCT image for designing a one-stage tooth root type dental implant having a fixation device, comprising: before oral cavity CBCT imaging for an affected tooth (1), inserting a metal wire (5) into the gingival sulcus (9) of the gingival margin of the affected tooth, and acquiring CBCT image data of the emergence portion from the gingival margin to the alveolar bone margin of the affected tooth (1), the intercuspal occlusion relationship, and the tooth root and the alveolar socket of the affected tooth, so as to provide CBCT image data of the intercuspal occlusion relationship that satisfies the design of the tooth root type dental implant; then converting the CBCT image data into the three-dimensional patch model and performing repeated processing on the surface to obtain a final dental implant model; and on the basis of the final dental implant model, performing 3D printing to manufacture a dental implant.

A determining method for an under-navigation apical surgery path is provided. The determining method includes the following steps: S1, obtaining CT image data of affected teeth and jaw bone data of a patient, and calculating the CT image data of the affected teeth to obtain calculation parameters of the surgery path; S2, based on the calculation parameters of the surgery path and in combination with the data of the affected teeth and the jaw bone data, obtaining a start point and an ending point of the surgery path, and generating the surgery path based on the start point and the ending point.

The present invention provides an oral pulp cleaning and treatment method and a pulp treatment system thereof, which relate to the technical field of the oral industry, including: fusing multimodal images such as CBCT and OCT to construct a four-dimensional risk model to guide path planning; performing adaptive and precise debridement under closed-loop feedback of multiple sensors such as pressure, acoustics, and chemistry; designing and 3D printing personalized restorations that are compatible with biomechanics through topological optimization algorithms; and finally achieving long-term stability monitoring and early failure warning of affected teeth through implantable passive sensors. The present invention also discloses an intelligent processing system for implementing this method. Through an integrated intelligent processing process, the present invention significantly improves the safety, success rate, and long-term survival rate of complex root canal treatments.

This invention provides a scanning rod and a digital method for taking a complete impression of the root canal using the scanning rod, relating to the field of oral medicine. The method includes: scanning the patient's oral cavity using an intraoral scanner to obtain an initial digital model of the dentition; injecting a silicone rubber lightweight material into the root canal post using a syringe, and inserting the scanning rod into the root canal post while waiting for the impression material to cure; scanning the affected tooth with the scanning rod and a predetermined number of teeth on either side of the affected tooth using the intraoral scanner to obtain the scanning rod and the digital model of the dentition. The digital method for taking a complete impression of the root canal using the scanning rod provided by this invention avoids the problems of reduced accuracy and patient discomfort caused by large-area impression taking. By matching the digital model of the dentition, the scanning rod and the digital model of the dentition, and the digital impression of the post, the post data obtained is reduced, and the accuracy of the post is improved.

The present invention provides a method and device for determining a fenestration path for apical surgery under navigation, wherein the method comprises the following steps: S1, obtaining CT image data of a patient's affected tooth and jaw data, calculating the CT image data of the affected tooth to obtain calculation parameters of the surgical path; S2, obtaining the starting point and end point of the surgical path according to the calculation parameters of the surgical path combined with the jaw data of the affected tooth, and then generating the surgical path. The present invention improves the efficiency of preoperative design, reduces the learning cost of doctors, and has a standardized design of the scheme with high accuracy.

The invention relates to the technical field of critical care, and discloses a mouth bite device for critical care, which comprises a central catheter channel, an external tooth guard plate and an internal tooth guard plate are arranged outside the central catheter channel, and an upper bite plate and a lower bite plate are arranged between the external tooth guard plate and the internal tooth guard plate. The upper biteplate and the lower biteplate are arranged on the left side and the right side of the upper biteplate, the inner side of the upper biteplate and the inner side of the lower biteplate are each provided with a preset dismounting opening, and an air cylinder is arranged below the preset dismounting openings. The dismounting openings, the air cylinders, the stabbing cones, the upper biteplate and the lower biteplate are matched, so that air can be blown to an affected tooth body of a patient and the vicinity of the affected tooth body through the stabbing cones and the air cylinders; the temperature of input gas is controlled through an external air pump and temperature control equipment, so that cold air or hot air is blown to the diseased teeth to cool or preserve heat of the diseased teeth, a temporary analgesic effect is achieved on the diseased teeth suffering from acute pulpitis, no analgesic agent or other dental instruments are needed to be matched with doctors, and the operation is simple and convenient. Only a nurse is needed to quickly and temporarily relieve pain of the diseased teeth of a patient.

The utility model discloses a multi-point retention two-section tooth root type implant device, and relates to the technical field of human oral medicine, the multi-point retention two-section tooth root type implant device comprises a tooth root type implant at a lower gingival section, a gingival penetrating necklace, a healing screw, a plurality of retention screws, a repair screw at an upper gingival section and a repair abutment, the gingival penetrating part of the tooth root type implant is provided with a repair retention keyway; an oblique retention screw bolt channel is arranged at the bottom, a retention groove is designed in the horizontal plane of the gum at the upper end, the root implant is placed in an original tooth extraction socket after an affected tooth is extracted, the retention screw is screwed into an alveolar bone through the retention screw bolt channel and can fix the root implant from different directions, and the gum penetrating collar is sleeved on the outer side of the gum penetrating part of the implant. The healing screw is installed in the repair retention bolt channel in the synostosis healing period to prevent foreign objects from entering the implant, and the repair screw is installed in the repair retention bolt channel after synostosis healing; according to the technical scheme provided by the invention, the initial stability of RAI can be improved, and the glazed all-ceramic gingival-penetrating necklace is adopted to solve the problems of gingival blackening and implant periphery inflammation.

This invention relates to the field of dental restoration technology and discloses a method for fabricating a 3D-printed resin filling guide. In clinical practice, the affected tooth is prepared and color matched. Three-dimensional data of the patient's upper and lower jaw dentition and the prepared abutment tooth data are obtained through digital oral scanning, along with the occlusal relationship. The abutment tooth data includes the abutment tooth size, axial direction, and gingival margin morphology. The 3D-printed resin filling guide fabrication method provided by this invention, utilizing digital design and 3D printing technology, creates a resin filling guide that meets the patient's personalized needs. This fundamentally overcomes many drawbacks of existing dental resin restoration techniques, achieving precision, personalization, and minimally invasive dental resin restoration, while improving clinical operational efficiency and patient satisfaction with aesthetic treatment.

The invention discloses a dental repair positioning device for stomatology, and relates to the technical field of medical instruments, the dental repair positioning device for stomatology comprises an expansion assembly, an adjusting assembly and a positioning assembly.The dental repair positioning device for stomatology can drive two expansion arms to expand by starting a motor when the oral cavity of a patient is expanded; the oral cavity of a patient can be driven to be expanded through expansion of the expansion arms, then repair operation is facilitated, after expansion is completed, the positions of the two expansion arms can be relatively fixed through clamping connection of clamping connection teeth A and clamping connection teeth B, and therefore the oral cavity of the patient cannot be closed in the repair operation period; when the teeth of the patient are positioned, the positioning assembly can be driven to move to the affected teeth by rotating the adjusting assembly, and the affected teeth can be positioned through the positioning assembly, so that subsequent repair operation of a doctor is facilitated.

The invention provides an oral cavity dental pulp cleaning and repairing method and a dental pulp diagnosis and treatment system thereof, and relates to the technical field of oral industry, and the method comprises the following steps: fusing CBCT, OCT and other multi-modal images to construct a four-dimensional risk model to guide path planning; self-adaptive precise debridement is carried out under multi-sensing closed-loop feedback of pressure, acoustics, chemistry and the like; designing and 3D printing a personalized restoration adaptive to biomechanics through a topological optimization algorithm; and finally, long-term stability monitoring and early failure early warning of the diseased teeth are realized through the implantable passive sensor. The invention further discloses an intelligent diagnosis and treatment system for implementing the method. Through the integrated intelligent diagnosis and treatment process, the safety and success rate of complex root canal treatment and the long-term survival rate of diseased teeth are remarkably improved.

The utility model provides a detachable inferior alveolar nerve block anesthesia guide plate which comprises a supporting guide plate arranged on an inferior alveolar cavity of a patient in a matched mode, an anesthesia positioning assembly arranged on the supporting guide plate and located above diseased teeth of the patient, and a connecting assembly arranged between the anesthesia positioning assembly and the supporting guide plate. The anesthesia positioning assembly is detachably arranged on the supporting guide plate, when the supporting guide plate is arranged on the inferior alveolar cavity of a patient in a matched mode, the anesthesia positioning assembly can be directly positioned to the mandibular hole of the patient, a needle is directly inserted through the anesthesia positioning assembly, anesthetic can directly flow to the inferior alveolar nerve, and the requirements of tooth implantation, periodontal surgery and other operations can be met; the anesthetic device is simple in structure, convenient to operate, low in implementation cost and convenient to popularize and implement, affected teeth of a patient can be quickly and accurately anesthetized without relying on the operation experience of an operator, excessive anesthetic can be effectively avoided, discomfort of the patient in an operation is reduced, and operation time is shortened, and the anesthetic device has the advantages of being simple in structure, convenient to operate, low in implementation cost and convenient to popularize and implement.

The utility model provides a zirconium oxide all-ceramic constant periodontal splint which comprises splint bodies arranged on the cheek side and the tongue side of an affected tooth clamp respectively, each splint body comprises a clamping part arranged on the vertical face of the affected tooth and connecting parts arranged at the two ends of the clamping part, and each splint body comprises a decorative layer, a supporting layer and a connecting layer which are sequentially stacked from outside to inside. And the supporting layer is made of zirconium oxide. The zirconium oxide is adopted as the material of the supporting layer, so that the supporting layer has high strength and good biocompatibility, the effective fixation of loose teeth is ensured, and the problem that a metal splint affects the attractiveness is avoided. The decorative layer can be made of materials similar to teeth in color, and attractiveness is further improved. In addition, due to the multi-layer structural design of the splint, all layers are clear in function and have a synergistic effect, the stability of the splint is effectively improved, and the service life of the splint is effectively prolonged. The periodontal disease treatment device has the advantages of being simple in structure and production process, meeting the periodontal disease treatment requirement, considering the attractiveness requirement and use experience of a patient and being convenient to popularize and implement.

The application discloses a kind of gingival atrophy degree intraoral image quantitative evaluation method and system, belong to oral medical image analysis technical field, comprising: obtaining the reference period historical intraoral image and the current intraoral image of the target tooth;Virtual cement-enamel junction reference line is generated in the recheck period by topological mapping algorithm;Extract endogenous anatomical anchor point;Query standard physical size parameter;Nonlinear pixel to physical distance mapping field is generated;The actual gum edge line of the target tooth is extracted;The three-dimensional normal vector of the surface of the target tooth is calculated;The quantitative evaluation value of the gingival atrophy of the target tooth is output.The present application makes full use of the identity and time sequence continuity rule of the target tooth between the reference period and the recheck period in tooth position attribution and anatomical structure, solves the measurement starting point loss problem when the physical cement-enamel junction in the recheck period cannot be identified due to pathological changes, effectively eliminates the nonlinear measurement deviation caused by perspective distortion under non-standard shooting angle.

The invention belongs to the field of tooth implantation, and particularly discloses an autologous bone column transplanted tooth plug-and-implant implantation method, which comprises the following steps: S1, planning an implantation site based on CT image data; s2, minimally invasive extraction of diseased teeth and cleaning of tooth extraction pits and surrounding granulation tissues; s3, positioning the planting site by using a positioning drill, and drilling a bone column at the planting site by using a girdling drill to form a planting nest; s4, sequentially using a drill bit for planting to gradually enlarge the diameter of the planting hole until the model of the selected implant can be completely in place, and then implanting the implant; s5, transplanting the bone column to a jumping gap and a bone defect position; according to the method, the implanting nest is drilled through the ring cutting drill in the hole preparation process, the autogenous bone column can be obtained in the process, bone waste is reduced, after the implant is implanted into the implanting nest, jumping gaps and bone defect positions are filled with the autogenous bone column, commercial bone products do not need to be used for filling, and the later implanting and repairing time is shortened.

The utility model discloses a false tooth colorimetric plate, which comprises colorimetric teeth and a colorimetric plate provided with the colorimetric teeth, each colorimetric tooth comprises a plurality of split tooth end parts and tooth root parts, the number of the tooth end parts and the number of the tooth root parts are both multiple, the colorimetric plate comprises a colorimetric plate I and a colorimetric plate II which are connected in a nested manner, the tooth end parts are arranged on the colorimetric plate I, and the tooth root parts are arranged on the colorimetric plate II. A protruding block is arranged on the side, opposite to the tooth end portion, of the first colorimetric plate, a groove matched with the protruding block is formed in the second colorimetric plate, the tooth end portion and the protruding block are arranged on the same side, the tooth end portion is connected with the first colorimetric plate through a rod, and the colorimetric plates are contained in the containing box. The plurality of tooth end parts and the plurality of tooth root parts are respectively matched with each other, so that the multi-tooth dental implant can be suitable for rich colors of diseased teeth; the bracket is used for obliquely placing the colorimetric plate in the box body, and the end, provided with the colorimetric teeth, of the colorimetric plate is lower than the end, not provided with the colorimetric teeth, of the colorimetric plate, so that direct contact with the colorimetric teeth is avoided during use; when the colorimetric plate I and the colorimetric plate II are embedded, the tooth end part and the tooth root part are in the same plane.

The invention belongs to the technical field of medical equipment, and discloses an oral cavity tooth and dental pulp clinical examination device which comprises a base, the base is connected with a head fixing assembly and a visual diagnosis assembly, the head fixing assembly comprises a head supporting plate and a box body, the box body is connected with a clamping assembly, the clamping assembly comprises a second spring and a wedge-shaped seat, the second spring is connected with a sliding rod, and the wedge-shaped seat is connected with the sliding rod. The sliding rod is connected with a linkage rod, the linkage rod is connected with a wedge-shaped sliding block, and the wedge-shaped sliding block is connected with a clamping plate. The visual diagnosis assembly comprises a control display center and a visual diagnosis base body, the control display center is connected with a sleeve, the sleeve is connected with an operating rod, the visual diagnosis base body is connected with a camera, a non-contact distance sensor, a protective mirror and a fan, the fan is communicated with an air inlet head, and the visual diagnosis base body is provided with an air outlet. The head fixing assembly is used for fixing the head of a patient, the visual diagnosis assembly is used for observing conditions of diseased teeth and surrounding tissues of the diseased teeth, the examination process is stable, obtained images are clear, and the diagnosis and treatment efficiency is high.

The invention discloses X-ray developing permeable resin, a preparation method and application in preparation of a material for diagnosing and treating subfissure teeth, and belongs to the technical field of dental diagnosis and treatment. The X-ray developing permeable resin is a network-shaped polymer formed by polymerizing a resin matrix and a developing agent through a cross-linking agent; the developing agent is an iodinated chemical substance containing unsaturated bonds. The X-ray developing permeable resin material provided by the invention has X-ray radiation resistance, can help to diagnose fine cracks, can permeate into the cracks while developing, seals the cracks and prevents the cracks from further expanding, so that the purpose of retaining diseased teeth in vivo is achieved, and diagnosis and treatment integration of hidden fissure teeth is realized.

The utility model relates to the technical field of oral medical instruments, in particular to a tooth extraction auxiliary tool which comprises a main body, a water supply pipeline and a water drainage pipeline, and the main body comprises a shell, a transmission assembly arranged in the shell, an impact head and a driving assembly; the transmission assembly comprises an eccentric wheel and a transmission rod set, the upper end of the transmission rod set makes contact with the eccentric wheel, the lower end of the transmission rod set is connected with the impact head, the transmission rod set is sleeved with a spring for resetting, and the water wheel is connected with the eccentric wheel through a rotating shaft so as to drive the impact head to stretch out and draw back in a reciprocating mode through the transmission rod set. The tool utilizes pressure of tap water to drive the water wheel, realizes reciprocating motion of the impact head through eccentric transmission, is convenient to use, can avoid damage of alveolar bones or tooth roots caused by overlarge force, and completely pulls out diseased teeth.