507 results about "Dental Gingiva" patented technology

The invention relates to the technical field of oral implantation monitoring, and discloses a monitoring method for analyzing oral implantation health based on using images. The method comprises the following steps: acquiring an optical image data sequence of an oral implanting region by adopting optical scanning equipment, constructing a three-dimensional oral tissue model containing gingival contour features and an implant position, and identifying actual position distribution information of an implant in gingival tissue; and extracting an implant health index set comprising an implant marginal definition value, a surrounding gingival red and swollen area proportion and a gingival atrophy degree value. When any index exceeds a preset health threshold interval, abnormal early warning information is generated, scanning parameters are dynamically adjusted, and images are collected again for iterative monitoring. According to the method, dynamic and accurate monitoring of oral implant health can be realized, health abnormity of the implant can be found in time, and support is provided for long-term health maintenance of the implant.

The invention discloses a high-precision and automatic dental crown generation method. The method comprises seven steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection, and dental crown generation and multi-dimensional refinement. The method comprises the steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection and dental crown generation. Through combination of deep learning and a point cloud algorithm, high-precision segmentation of teeth and gingiva and precise reduction of an occlusion relationship are realized, an oral anatomical feature library and a clinical repair standard are fused, and through multi-dimensional fine adjustment optimization, a dental crown 3D model which is high in fitting degree, harmonious in occlusion and capable of meeting clinical requirements is generated. The method is full-process automatic, greatly improves efficiency, reduces operation threshold, reduces material waste and diagnosis and treatment cost, remarkably improves repair success rate, and is suitable for various oral repair scenes.

The invention discloses an oral care composition containing ampelopsis japonica polysaccharide and application of the oral care composition in inhibiting gingival bleeding. The oral care composition comprises ampelopsis japonica polysaccharide and an orally acceptable carrier, wherein the pH (Potential of Hydrogen) range of the oral care composition is 5.9 to 7.7. The invention also discloses an application of the ampelopsis japonica polysaccharide in the oral care composition for inhibiting gingival bleeding. The invention discloses application of silicon dioxide with a high oil absorption value in an oral care composition for improving the gingival bleeding inhibiting effect of ampelopsis japonica polysaccharide. The combination of the high-oil-absorption-value silicon dioxide and the low-oil-absorption-value silicon dioxide is applied to the oral care composition for improving the gingival bleeding inhibiting effect of the ampelopsis japonica polysaccharide; the invention further discloses application of sorbitol in the oral care composition for improving the effect of inhibiting gingival bleeding by the ampelopsis japonica polysaccharide. The oral care composition has a hemostatic effect and can effectively solve the problem of gingival bleeding.

The invention belongs to the technical field of three-dimensional point cloud processing, and particularly discloses an automatic tooth segmentation method and system for oral cavity scanning point clouds, and the method comprises the following steps: collecting and preprocessing dentition three-dimensional point clouds, extracting point cloud features containing coordinates and normal directions, and constructing a neighborhood structure; setting a first-stage multi-branch network, and performing tooth and gingiva coarse segmentation and instance initial clustering on the point cloud; setting a second-stage semantic refinement network, and carrying out local cutting on the original point cloud; setting a boundary detection and boundary offset network to enhance a tooth contact area, and refining a boundary instance by clustering to obtain a boundary enhanced instance tag; and performing label fusion, and propagating the fused label to the original high-resolution point cloud through a nearest neighbor algorithm to obtain a final semantic label and a final instance label. By adopting the technical scheme, high-precision instance-level segmentation of the complete dentition point cloud is realized through semantic segmentation, boundary detection and clustering cooperative work based on a biased field.

The invention relates to an oral implant positioning method and system based on deep learning. According to the method, three-dimensional point cloud data of an oral cavity is obtained and preprocessed, and a pre-trained three-dimensional deep learning segmentation model is utilized to automatically and accurately segment tooth, gingiva and alveolar bone structures. And based on the segmentation result, extracting key form and spatial relationship characteristics of the alveolar bone, and matching with an implant database to primarily select a candidate scheme. By integrating geometric constraint verification and biomechanical simulation, the candidate schemes are optimized and decided, and the optimal implant implantation position and posture meeting the safety and biomechanical requirements are calculated. And finally, automatically generating digital operation guide plate data completely matched with the gingival form of the patient according to the optimal scheme. According to the method, automation and intellectualization of the whole process from data collection to surgical guide plate generation are achieved, the defects that a traditional method depends on artificial experience, is high in subjectivity and low in efficiency are effectively overcome, and the precision, efficiency and reliability of implantation surgical planning are remarkably improved.

The invention belongs to the technical field of medical materials, and particularly relates to a tooth whitening composition and a preparation method thereof, the tooth whitening composition comprises the following components by weight: 5%-15% of hydrogen peroxide, 0.5%-1.5% of a gel matrix, 0.2%-1.0% of a thickener, 5%-10% of a humectant, 3%-8% of propylene glycol, 0.05%-0.2% of a chelating agent, 1%-3% of a sweetener, 0.1%-0.5% of sodium fluoride, and the balance of water. Aiming at the problems that an existing tooth whitening product is relatively low in pH value (most of 4.0-5.0), easy to irritate gingiva and sensitive in tooth manufacturing, and the existing tooth whitening product needs to be stored in a dark place at a low temperature and is short in whitening validity period, the pH value of the product is adjusted to 5.5-6.5, so that the product is close to oral saliva, the irritation can be reduced, the stability of the product can be ensured, the product is not easy to decompose, and the tooth whitening effect is good. Active ingredients are prevented from losing efficacy in advance, and the whitening validity period is prolonged.

The embodiment of the invention discloses a dental plaque data processing method and device, computer equipment and a storage medium. The method comprises the steps that a target oral cavity is scanned through a target scanning scheme, a target oral cavity image is obtained, the target oral cavity image is a first oral cavity image or a second oral cavity image, the first oral cavity image is an oral cavity image in which miscellaneous data is removed and a dental plaque staining area is reserved, and the second oral cavity image is a second oral cavity image; the second oral cavity image comprises a first sub-oral cavity image obtained before dyeing and a second sub-oral cavity image obtained after dyeing; a target oral cavity three-dimensional model is constructed according to the target oral cavity image, the target oral cavity three-dimensional model comprises a tooth area and a gingival area, and the tooth area comprises a dental plaque dyeing area and an undyed area. By implementing the method provided by the embodiment of the invention, the construction of the oral cavity three-dimensional model in the oral cavity dental plaque scanning scene can be realized, and the construction efficiency is improved.

The invention discloses a design method of a digital jaw pad, a forming method of an orthodontic appliance, the orthodontic appliance, an orthodontic appliance assembly, a device, equipment and a medium. The design method of the digital jaw pad comprises the following steps: acquiring a target digital tooth jaw; according to the outer contour of the target end face of the target digital tooth jaw, a datum line of the digital jaw pad on the target end face is determined, the target end face is a tooth end face, away from gingiva, in the target digital tooth jaw, and the datum line is used for generating the digital jaw pad. According to the invention, the datum line is determined according to the outer contour, and then the digital jaw pad is generated according to the datum line, that is, the digital jaw pad is generated based on the outer contour of the target end face, and for different outer contours of different patients, different datum lines can be determined to generate different digital jaw pads, that is, different digital jaw pads are generated according to different datum lines. The digital jaw pad can be individually designed according to the outer contour of the target end face of each patient, and the patient experience can be greatly improved.

An oral care composition with retinoid compound, amino acid, and / or olive oil. An oral care composition with retinoid compound, a pentapeptide, such as palmitoyl KTTKS [SEQ ID NO. 2], and / or an olive oil. Methods of preventing gingival recession, stopping gingival recession, reversing gingival recession, decrease gum recession, increase gingival barrier protection, promoting collagen synthesis, promoting extracellular matrix synthesis, increasing gum resilience, increasing epidermal thickness and / or promoting fibrillin synthesis, in an oral cavity of an animal by contacting the oral care compositions with at least one surface of the oral cavity.

A flanged healing abutment for securing to an implant that has a bone graft. The flexible flange extends out laterally from the healing abutment body to contact the adjacent gingiva. The flange securely contacts the gingiva in a manner that contains the bone graft, and prevents bacterial infection of the bone graft. The flanged abutment is also able to form gingival emergence profiles. A method for securing a prosthesis to an implant utilizing a flanged healing abutment is also provided.

The invention discloses a segmentation and evaluation method for a tooth preparation shoulder, relates to the technical field of oral medicine digitization, and aims to solve the problems of low segmentation precision, neglect of anatomical distinguishing, single evaluation, unsmooth boundary and the like of an existing method. The method comprises the following steps: shoulder coarse segmentation: screening three-dimensional grid cube units based on an average curvature, and extracting a coarse segmentation shoulder of a maximum connected domain; carrying out shoulder fine segmentation, extracting inner and outer contours, and then carrying out optimization by using a greedy algorithm (ensuring smoothness through inner energy, and enabling outer energy to fit concave-convex characteristics); performing multi-quadrant division, dividing a mesial region, a distal region, a labial region and a lingual region by taking a long axis of a tooth body as a reference, and fitting boundaries by using a B spline; in the evaluation stage, the gingival height and shoulder width of each region are quantified, the weighted average height is calculated to obtain a basic score, and a final score is obtained by combining region balance deduction. The method is high in segmentation precision, achieves differentiated and comprehensive evaluation, is convenient to operate, and is suitable for oral cavity practical operation teaching and false tooth design scenes.

A three-dimensional tooth model segmentation method of a double-branch geometric attention network based on centroid guidance is oriented to oral cavity three-dimensional scanning point cloud data and comprises the steps that firstly, normalization and normal vector estimation are conducted on the oral cavity three-dimensional point cloud data, a double-branch encoder for coordinate and normal decoupling is constructed, and a global topological structure and local geometric features are extracted respectively; secondly, a separable attention mechanism guided by the mass center is introduced into a coordinate branch so as to improve the distinguishing ability of adjacent teeth, and a graph convolution attention mechanism is introduced into a normal branch so as to strengthen the boundary expression of the teeth and gingiva; further, in the fusion stage, a mass center thermodynamic diagram and multi-scale feature aggregation are combined, and joint modeling of global and local structures is achieved; and finally, collaborative optimization of instance segmentation and centroid localization tasks is carried out through a dynamically weighted joint loss function. According to the method, the segmentation precision and robustness under complex cases are remarkably improved while the light weight is kept, and the automation and clinical practicability of oral diagnosis and treatment are enhanced.

An apparatus for treating a tooth or gum tissue is disclosed. The apparatus can include a tooth cap for supporting a treatment device during a treatment procedure. The tooth cap can comprise a platform to support the treatment device. The platform can include an access port to provide a portion of the treatment device with access to a treatment region of the tooth or gum tissue. The tooth cap can also include a wall coupled with and angled relative to the platform, the wall configured to be attached to the tooth or gum tissue during treatment.

The toothbrush according to the invention is designed to be elastic and reversibly deflectable in the area of ​​the finger groove (Fm). If the maximum permissible cleaning force on the teeth and gums is exceeded, small but perceptible movements occur between the individual transverse ribs (Qs) in the area of ​​the finger groove (Fm). These movements are easily felt by the user's fingers resting on them, thus allowing the cleaning force to be constantly monitored, controlled, and limited. Furthermore, due to the coordinated design of the transverse ribs (Qs) (essentially in the form of an irregular truncated pyramid) and the essentially trough-shaped transverse recesses (Qa), there is no risk of pinching or chafing of the skin of the fingers, even when the recommended cleaning force is significantly exceeded.and wherein the surface and volumetric contact between all features in the area of ​​the finger groove (Fm) and the fingers resting thereon is consistently / permanently good, comfortable, stable, non-slip and secure, regardless of which specific tooth area in which specific quadrant of the dentition is being brushed or cleaned. The toothbrush according to the invention, in particular a mechanical manual toothbrush, can be manufactured to a high standard and routinely using both single-component and multi-component technologies (with the exception of bristles).

The invention relates to a composition with bacteriostatic, anti-inflammatory and / or oral cavity repairing effects and application of the composition in toothpaste, and belongs to the technical field of daily chemicals. The composition disclosed by the invention is prepared from the following components in parts by weight: 0.04 to 0.06 part of pyrroloquinoline quinone and 0.2 to 0.3 part of carboxymethyl chitosan. Based on the anti-oxidative stress regulation and control capability of pyrroloquinoline quinone and the broad-spectrum antibacterial synergistic effect of carboxymethyl chitosan, pyrroloquinoline quinone and carboxymethyl chitosan are compounded and applied to a toothpaste formula system, so that the toothpaste has the effects of inhibiting bacteria, resisting inflammation, proliferating and repairing gingival fibroblasts and regulating the composition and diversity of oral microorganisms. According to the composition disclosed by the invention, through a multi-mechanism synergistic effect, an oral health maintenance system integrating bacteriostatic protection, inflammation regulation and control and mucous membrane repair is constructed, and the compound requirements of modern consumers on oral microenvironment regulation and control, mucous membrane barrier strengthening and long-term health management are accurately met.

The present application relates to the technical field of dental diagnosis, and particularly relates to a periodontal disease precise quantitative evaluation method based on IOS images and CBCT images, comprising the following steps: performing image segmentation on an intraoral scanning IOS image to obtain an IOS segmentation result of each tooth; performing image segmentation on a CBCT image to obtain a CBCT segmentation result of each tooth; performing preprocessing and registration on the IOS segmentation result and the CBCT segmentation result to obtain a data fusion model; obtaining a gum contour and a tooth long axis according to the data fusion model, obtaining a gum contour point according to the gum contour, obtaining a alveolar bone contour on the alveolar bone along the direction of the tooth long axis and obtaining a GBD distance according to the gum contour point; and evaluating periodontal disease according to the GBD distance. According to the present application, the data fusion model is obtained according to the segmented IOS result and the CBCT result, the gum contour and the tooth long axis are obtained through the data fusion model, the GBD distance of the gum contour and the alveolar bone contour is measured along the direction of the tooth long axis, and the periodontal disease health condition is evaluated.

The utility model provides a dental instrument which comprises a shell-shaped body with a plurality of tooth containing cavities, the shell-shaped body further comprises an extension part and a traction part, the extension part is formed by extending the edges of the tooth containing cavities towards the gingiva direction, the traction part protrudes from part of the surface of the extension part towards the far-tooth direction to form a cavity structure, and in addition, the traction part is connected with the extension part. The traction part and the edge of the extension part are arranged at an interval; the side surface of the traction part is provided with a containing cavity used for hanging a traction piece, and when the traction device is worn, the extension part covers and wraps part of gingiva. The traction part in each embodiment of the utility model not only can replace the function of an anchorage nail to provide anchorage force or orthodontic force, but also solves a series of negative effects that in the prior art, an implanting nail needs to be driven into a tooth root, and trauma is caused to the interior of the mouth of a patient.

A method for intraoral imaging generates one or more output imaging signals from an intraoral probe and acquires multimodal image content from intraoral surface locations according to tissue response from the one or more imaging signals and associates spatial coordinates to the acquired multimodal image content. A surface contour of the patient dentition is generated by stitching the acquired multimodal image content and preserving the association of spatial coordinates with the stitched multimodal image content. Tooth outlines for one or more teeth are generated from the generated surface contour and the generated outlines arranged as a dental chart representing a spatial ordering of the one or more teeth and of supporting gum tissue adjacent to the teeth. The dental chart is populated by analyzing the acquired multimodal image content and associating the analysis to positions on the dental chart according to the preserved association of spatial coordinates and is displayed.

This invention discloses an automated anterior tooth feature parameter extraction method and evaluation system based on computer vision, comprising: acquiring and visualizing a full-mouth scan image of a patient to be processed; cropping the corresponding tooth portion image; using Gaussian blur to eliminate specular reflection; using color segmentation to set thresholds for the H, S, and V channels respectively; separating the teeth and gingiva in each tooth portion image and performing morphological processing on each; extracting the tooth and gingiva portion contours using contour extraction methods; further refining the segmentation accuracy using the Chan-Vese active contour model algorithm and the energy function within the tooth portion contour; extracting corner points using the Shi-Tomasi corner detection method and then clustering them; extracting other important evaluation feature points through curve fitting and extreme value finding methods; and finally calculating relevant objective indicators for tooth evaluation and automatically generating the corresponding tooth score, thus completing the automated anterior tooth evaluation.

A dental restoration system (1) for restoring a tooth at least during healing of an implant structure (5) placed in a jaw of a patient, comprising a crown base (3) and a locking member (2). The crown base (2) is configured to be positioned on a gingiva former (4) mounted to the implant structure (5). The locking member (2) has a contact surface (212) and a securing structure (24) configured to be secured to the gingiva former (4). The crown base (3) has a through hole (31) configured to receive the locking member (2) such that the contact surface (212) of the locking member (2) contacts the crown base (3) and the securing structure (24) extends at least partially out of the crown base (3). The crown base (3) is made of a base material configured to be combined with a crown material used for building a crown (6).

The invention discloses a gingival model generation method and device, and the method comprises the steps: obtaining a bottom resin wax three-dimensional grid, and a gingival edge line and an alveolar bone line of each tooth in the bottom resin wax three-dimensional grid according to scanning data corresponding to a bottom resin wax model of a target gingiva; grid offset processing is conducted on the three-dimensional grid of the bottom layer resin wax, and an offset wax grid is obtained; according to the ray projection of each gingival edge line on the offset wax grid, performing contour processing corresponding to each tooth on the offset wax grid to form a gingival candidate area; processing the offset wax grid to obtain an offset wax grid with the same appearance as the target gingiva; and merging the three-dimensional grid of the bottom resin wax and the offset wax grid to obtain a gingival model corresponding to the target gingival. The gingival model generation method and device can replace a traditional mode that the gingival model needs experience processing, and the gingival model which is similar to the target gingival in shape and has a high aesthetic effect can be rapidly and accurately generated.

A mouthpiece (10) for distribution of a liquid in a user's mouth, the mouthpiece (10) being configured to be positioned within a superior vestibule of the user's mouth apical to a gingival margin, the mouthpiece (10) comprising: an inlet (12) configured to receive a fluid supply, at least two fluid outlets (22), and an internal channel (14) fluidly connecting the inlet (12) to the fluid outlets (22); and a flange portion (16) at least partially surrounding the channel (14) for adhering to a user's gum; wherein a thickness of the channel (14) is greater than a thickness of the flange portion (16).

The application discloses a kind of solid teeth pain-relieving and inflammation-clearing traditional Chinese medicine composition, it is related to traditional Chinese medicine product technical field.The composition is composed of gypsum, raw rehmannia, coptis, talc, ocher, radix cyathulae and salvia miltiorrhiza seven raw medicinal materials, wherein gypsum, raw rehmannia are monarch drug, clear and purge stomach fire, cool blood and nourish yin;Coptis, talc are ministerial drug, clear heat and dry dampness, lead heat down;Ocher, radix cyathulae are auxiliary drug, heavy town counteract, lead fire down;Salvia miltiorrhiza is servant drug, promote blood circulation and remove blood stasis, promote tissue repair.Modern pharmacological research shows that each drug of the present party has the effects of anti-inflammatory, analgesic, antibacterial, improving microcirculation and protecting periodontal tissue etc.Clinical observation shows that the pain of most patients caused by stomach fire attacking upward, gum redness and swelling, burning pain, bleeding is significantly reduced after taking 1-2 doses, redness and swelling gradually subside.Compared with existing Chinese patent medicines, the present application is simple in prescription, low in cost, has the dual effects of rapid pain relief and long-term tooth fixation, and is especially suitable for patients with recurrent toothache and early periodontitis.

The removable anti-loosening false tooth comprises a false tooth main body, a tooth root connecting block is arranged at the bottom of the false tooth main body through a connecting groove with internal threads, and a tooth root sleeve for performing outer protection positioning on the tooth root connecting block is arranged at a bottom port of the connecting groove and located at the bottom of the false tooth main body; through the false tooth main body, the connecting groove, the tooth root connecting block, the tooth root main body and the threaded connecting part, the false tooth main body is fixed on the threaded connecting part on the tooth root connecting block through threads of the connecting groove for connection and fixation, so that the false tooth main body and the tooth root connecting block can be quickly fixed, and the tooth root sheath is positioned and sleeved outside the tooth root connecting block for protection; according to the structural connection mode, the false tooth main body only needs to be screwed to be separated from the tooth root connecting block in the picking and replacing process, so that the worn false tooth main body can be conveniently picked and replaced, and the problem of gingival injury caused by picking and replacing by virtue of a tool is avoided.

The scalpel comprises a first scalpel handle and a first scalpel head, the first scalpel head is detachably arranged at the front end of the first scalpel handle, a connecting insertion block is arranged at the front end of the first scalpel handle, and a step-shaped clamping groove is formed in the outward end of the connecting insertion block; the tail end of the first tool bit is provided with a connecting groove matched with the stepped clamping groove and the connecting inserting block in appearance, the front end of the first tool bit is provided with an integrally-formed extending part, the extending part is bent outwards, and the width of the end is gradually reduced to form a tip in the outward extending process of the extending part. Blades are arranged on the two side surfaces of the extension part; the extension part which is bent outwards can be suitable for narrow and irregular spaces around wisdom teeth, especially at different tooth position angles, and can be conveniently inserted into a gap between a gingiva and an alveolar bone, so that the connection between the gingiva and a dental crown neck as well as between the gingiva and an alveolar is completely cut and separated, and the end part of the extension part is a sharp end; and accurate puncture and combination of the starting point of the epithelium are facilitated, and damage to healthy tissues is reduced.

A telescopic electric tooth gap brush with a flushing function comprises a main body, a micro motor and a micro water pump are mounted in the main body, the micro motor is located at the upper end of the micro water pump, a reciprocating mechanism is mounted at the power end of the micro motor, and a brush head mounting head is mounted at one end of the reciprocating mechanism. The tooth gap brush has the advantages that the micro motor is used as a power source and matched with the reciprocating mechanism, so that the tooth gap brush head can automatically move in a reciprocating mode, a user is helped to clean teeth, meanwhile, the micro water pump is additionally arranged, flushing cleaning can be carried out while the teeth are cleaned, and the tooth gap brush is convenient to use. According to the tooth gap brush, the overall cleaning efficiency is further guaranteed, the replaceable tooth gap brush head is adopted, the cleanliness of the tooth gap brush head can be kept, the cleanliness of equipment can also be guaranteed, a brush head protection sleeve is additionally arranged on the tooth gap brush head, and the gingiva of a user can be effectively prevented from being injured when the tooth gap brush is used.

The invention relates to the field of three-dimensional modeling, and provides a method, a device and equipment for generating a virtual gingiva, and the method comprises the following steps: obtaining a scanning model of a tooth, and segmenting a tooth model and a gingiva model based on the scanning model; wherein the gingival model covers a gap between adjacent teeth, and a corresponding hole is formed for each tooth model; obtaining the layer number of points influenced by each tooth; wherein the points influenced by the teeth are grid points influenced by tooth movement on the gingival model; the number of layers of the points influenced by the teeth represents the maximum topological hierarchy depth influenced by outward radiation from the edge of the corresponding hole of the tooth model; and according to the layer number of the points influenced by each tooth, carrying out layered movement calculation on the points on the gingival model to generate a virtual gingival model. According to the method, the problem that in the prior art, virtual gingiva generation only depends on gingival line geometric information and ignores real gingiva dynamic deformation characteristics is solved, and the generated virtual gingiva can dynamically adapt to tooth movement and keep biomechanical rationality.

The present invention relates to a method for reconstructing interdental papillary using hyaluronic acid and, more specifically, to a method comprising a process of injecting hyaluronic acid into the gingiva. The method for reconstructing interdental papilla comprising the above process exhibits the effect of alleviating black triangles or food impaction between teeth by enlarging soft tissue in the interdental papilla loss area and increasing the volume of the interdental papilla.

The invention relates to the technical field of electric toothbrushes, in particular to a cleaning brush for dental implants. Comprising a housing; the control switch is mounted on the outer wall of the shell; the mounting shell is arranged at the top of the shell; the sound wave motor is installed in the shell, and the sound wave motor is electrically connected with the control switch; and the rotating rod is rotationally connected to the interior of the mounting shell, an insertion hole is formed in the bottom of the rotating rod, an output shaft of the sound wave motor is inserted into the insertion hole, and a spiral groove is further formed in the upper end of the rotating rod. The sound wave motor can drive the rotating rod to do small-amplitude and high-frequency reciprocating forward and reverse rotation, the spiral groove in the rotating rod is matched with the ball on the inner side of the sliding sleeve, and rotation can be converted into transverse high-frequency reciprocating movement of the sliding sleeve and the first brush and the second brush connected to the sliding sleeve; the transverse movement direction is matched with the trend of an annular gingival margin area at the junction of a dental crown and gingiva of the implant tooth, so that bacterial plaque biofilms accumulated in a high-risk area can be effectively removed.

This invention relates to the field of oral care products technology, specifically to an artificial enzyme with antibacterial properties, its preparation method, and its application. This technical solution employs a chemical reduction method, where a palladium source reacts in an environment containing surfactants and reducing agents to obtain palladium nanozymes. The obtained palladium nanozymes exhibit uniform morphology, controllable particle size, good dispersibility in water, and good biocompatibility; they have no significant toxic side effects on human gingival fibroblasts, possess highly efficient catalase activity, and demonstrate strong antibacterial and bactericidal effects against oral pathogens, significantly reducing bacterial drug resistance; they can inhibit acid production by oral bacteria, preventing tooth decay; and they retain their original catalytic activity even after multiple cycles of use. Applying the palladium nanozymes of this solution to the manufacture of oral care products can solve the technical problems of unsatisfactory safety and easy development of drug resistance in existing oral care products using antibacterial and anti-caries methods, showing promising application prospects.