198results about "Dental aids" patented technology

A splint device (100) for robotically-guided surgery includes elongate first and second splint portions (200, 400) each having opposed longitudinal ends and an interface edge extending between the ends, wherein the respective interface edges (250, 450) are arranged as a complement to each other. First and second alignment elements (800A, 800B) engaged with the first and second splint portions are arranged to interact with each other such that a substantially consistent gap is defined between the first and second interface edges, from the first ends to the second ends of the first and second splint portions. A threaded member (900) is engaged between the first and second splint portions and arranged to advance the first and second interface edges toward each other in response to advancement of the threaded member. A tracking portion (1000) having a kinematic mount (1100) engaged therewith is engaged with the first or second splint portion and extends outwardly therefrom. An associated method is also provided.

The invention discloses a duplex adjacent surface forming sheet system, which belongs to the field of oral cavity medical instruments and comprises a first forming sheet and a second forming sheet, the fixing ring is used for clamping the two sides between the first forming piece and the second forming piece which are attached to ensure that the first forming piece and the second forming piece are attached to teeth; a hollow groove is formed in the middle of the second forming sheet, and a positioning connecting structure connected with the second forming sheet is arranged on the first forming sheet; the positioning connecting structure comprises mounting holes which are symmetrically formed in the two sides of the middle of the first forming piece and matched with the two ends of the second forming piece. By means of the design, the two forming pieces can be overlaid at the same time, and perfect wrapping of the adjacent faces of the two teeth and accurate recovery of the contact are achieved. In addition, the gap between the two adjacent faces can be integrally planned through the mode, and many defects caused by respective filling in a traditional mode are overcome, for example, the problems that filling of the other adjacent face hole is hindered due to the fact that one filling body is too large, and food is impacted due to deviation of a contact area are solved.

The invention discloses a method for post-root canal therapy resin closure retreatment in a medullary cavity, and relates to the technical field of root canal therapy, and the method comprises the following steps: S1, pre-operation sampling; s2, removing the restoration and other materials: removing the restoration on the surface of the dental crown and the resin sealing material in the medullary cavity by using a material removal technology and a tool, wherein the material removal technology and the tool comprise a grinding device with a sensor or a laser technology; s3, re-cleaning and disinfecting the root canal: after cleaning the root canal, using a root canal disinfection drug added with nano-silver particles, and mixing the nano-silver particles with traditional disinfection drugs such as calcium hydroxide paste; s4, filling and re-treating: blending the color of the resin by using a computer color matching technology before filling the medullary cavity; the system further comprises an intelligent design monitoring platform. According to the invention, a grinding device with a sensor or a laser technology is adopted, so that the damage to tooth tissues, especially key parts, is remarkably reduced, and the treatment safety and accuracy are improved.

A dental matrix for forming a crown on a tooth includes a body having a expandable tab, which allows the diameter of an opening to be expanded for removal of the matrix from the formed crown.

The present disclosure relates to a dental finishing strip that includes an abrasive protrusion. The disclosed device can be utilized in dental restorations of interproximal cavities. The abrasive finishing strip with abrasive protrusion can remove sharp enamel edges at the proximal surface of the tooth and assist in forming a desired beveled edge at the proximal surface. Such beveled edges are conventionally difficult to form along preparation edges associated with the proximal surface of the target tooth. A beveled margin results in an improved sealing of the composite resin to the treated tooth, which in turn can increase a composite dental filling's longevity.

The invention relates to the field of tooth and pulp pathology, and discloses an isolation and double-forming system for tooth proximal neck and root defect repair treatment, which is matched with a rubber barrier clip for tooth proximal neck and root defect repair treatment to obtain a good moisture isolation condition and leakproofness during proximal neck and root defect filling repair. The double-forming and isolating system is used for treating tooth adjacent face neck root defects. The problem that an existing adjacent face forming system and an existing rubber barrier system are difficult to form, closely attach and isolate during tooth adjacent face neck root treatment is solved, the sealing performance of filling treatment is improved, meanwhile, the shape recovery effect of the adjacent face and the neck root can be guaranteed, and the practical application value is achieved.

The present invention addresses the problem of providing an auxiliary instrument for dental treatment capable of being easily removed from a tooth restored while hardly causing pain to a patient when removing the auxiliary instrument for dental treatment after curing a curable composition for tooth restoration. One aspect for solving the above problem is an auxiliary instrument for dental treatment, the auxiliary instrument having a body part having a recessed opening part capable of accommodating at least a portion required to be restored of a tooth restored of a patient, wherein: a portion at least accommodating the portion required to be restored has an inner surface shape corresponding to a preliminarily designed outer surface shape of the portion required to be restored of the tooth after restoration; in a state in which the body part is elastically deformed and attached to the tooth restored, a cavity is formed by the inner surface shape and the outer surface shape of the tooth restored; the auxiliary instrument for dental treatment restores the tooth restored by irradiating a dental photocurable composition introduced into the cavity with light in a state of being attached to the tooth restored to cure the dental photocurable composition; and a resin material having a tensile elongation in accordance with JIS K6251 of 10%-60% is used.

Embodiments of this disclosure provide a staging assembly (10) for negative pressure, multi-canal irrigation of a root canal system followed by obturation. The staging assembly may be part of a kit that includes a plurality of catheters (50) sized for insertion into the root canal system. To hold the catheter in its proper position in the canal, the catheter may include a stop (37) and the staging assembly may include a corresponding stop hold (36). The distal end (51) of the catheter can be positioned 2 mm to 5 mm from the terminus end of the root canal. The staging assembly is then sealed, creating a closed system. Irrigating solution is vacuum-drawn out the ends of the catheters and debris is evacuated through a vacuum port of the staging assembly. During irrigation, no hands on time is required by the clinician. After irrigation, vacuum is reversed to dry the canal. Obturation occurs through the vacuum.

Described are various embodiments of a butterfly-shaped dental matrix band for performing fillings on two adjacent teeth simultaneously. In one embodiment, the band comprises a central portion, the central portion resting at the contact point upon the band being engaged in-between the adjacent teeth; two thin and pliable adjacent wings, each wing surrounding and extending away circumferentially from an edge of the central portion, and wherein a first portion of each wing comprising an area extending from said central portion to a lower edge of each wing along said vertical axis has a thickness equal to at most half the thickness of the central portion; and a second portion of each wing not included in said first portion has a thickness equal to the thickness of the central portion. In some embodiments, each wing has a tab at the upper edge thereof to grab and manipulate the matrix band.

Dental matrices and crowns are disclosed for making dental veneers and crowns on teeth. The dental matrices are adapted to the specific tooth type (e.g., premolars, molars, canines, incisors, palatal teeth, lingual teeth) to be treated in a single procedure, and can provide a veneer on the tooth for an aesthetically pleasing appearance and then be resurfaced. The dental matrix for forming a crown on a tooth includes a body with expandable tabs, allowing the diameter of the opening to be expanded for removal of the matrix from the formed crown.

The utility model discloses an implantation guide plate with a rubber barrier, which particularly relates to the field of dental implantation and comprises a positioning plate, rubber barrier cloth is arranged at the upper end of the positioning plate, a guide plate is arranged at the upper end of the rubber barrier cloth, a positioning groove is formed in the bottom end of the positioning plate, a clamping plate is arranged in the positioning groove, and a clamping groove is formed in the clamping plate. A positioning groove is formed in the upper end of the positioning plate, a positioning protrusion is arranged at the bottom end of the guide plate, a guide ring is fixedly arranged in the middle of the guide plate, and a guide ring in-place hole is formed in the upper end of the positioning plate. According to the utility model, the rubber barrier cloth is arranged between the positioning plate and the guide plate, can play roles in isolating moisture, isolating infection, clearing the visual field, pulling soft tissues and the like, can prevent cooling water, saliva or blood from influencing the operation of medical personnel during hole preparation, and can improve the visual field in the oral cavity and the success rate of the implant.

There is a mylar matrix band. The mylar matrix band has an elongated thin plastic film having an overall shape of an inverted-V with a flattened middle, and including three regions, specifically: a middle region having a primary axis along a horizontal extent thereof; a left region adjacent to the middle region and extending at a first angle from the primary axis of the middle region; and a right region adjacent to the middle region opposite the left region and extending at a second angle from the primary axis of the middle region; wherein the first and second angles are between 25-60 degrees from the primary axis and an interior length of the middle region as measured from an interior transition between each of the left region and right region is greater than 5 mm.

The utility model discloses a rubber barrier perforated plate, which belongs to the technical field of medical equipment and comprises a transparent plate body, a positioning area is arranged on the transparent plate body, the positioning area is consistent with a rubber barrier in size and shape, a cross center line is arranged in the positioning area, and the positioning area is divided into four quadrants by taking the cross center line as an xy coordinate system. A right upper jaw tooth position hole and a left upper jaw tooth position hole are formed in the first quadrant and the fourth quadrant respectively, and a right lower jaw tooth position hole and a left lower jaw tooth position hole are formed in the second quadrant and the third quadrant respectively. Due to the fact that the plate body is transparent, finding of corresponding tooth position holes and adjustment of the relative position of the punching plate and the rubber barrier are very convenient, meanwhile, punching can be conducted on the rubber barrier on the corresponding tooth position holes in the transparent plate body in combination with the punching technology, the influence of the thickness, the color and the transparency of the rubber barrier is avoided, and the punching effect is good. And the influence of ambient light is relatively small.

The rubber barrier moisture insulation system comprises a rubber barrier sleeve clamp, rubber barrier belt hole cloth and an out-of-mouth supporting frame, the out-of-mouth supporting frame is used for unfolding and supporting the edge of the rubber barrier belt hole cloth outside the mouth, the rubber barrier belt hole cloth is elastic, the rubber barrier sleeve clamp comprises a clamping wing, and mounting mechanisms are fixedly arranged on the two sides of the top of the clamping wing respectively. A retention frame is fixedly arranged between the two clamping wings through a mounting mechanism, fixed barrier cloth is fixedly arranged in the middle of the tops of the clamping wings in a penetrating mode, a prefabricated barrier cloth hole is formed in the fixed barrier cloth, a preset sleeve hole is formed in the rubber barrier belt hole cloth, and the hole diameter of the preset sleeve hole is larger than that of the prefabricated barrier cloth hole. The rubber barrier belt hole cloth is arranged on the inner side of the rubber barrier sleeve clamp in an attached mode, the two sides of the clamping wings can be bent and shaped, teeth to be treated penetrate through the preset sleeve holes and the prefabricated barrier cloth holes of the rubber barrier belt hole cloth, the two sides of the clamping wings can be bent and shaped, the rubber barrier belt hole cloth is tightly attached to gingiva, retention in the horizontal direction is achieved, and accidental injury caused by improper control is avoided.

Various embodiments of a butterfly-shaped dental matrix band for simultaneously placing fillings on two adjacent teeth are described. In one embodiment, the band comprises a central section, the central section being located at the point of contact when the band is inserted between the adjacent teeth; two thin and flexible adjacent wings, each wing surrounding an edge of the central section and extending circumferentially from it, wherein a first section of each wing, comprising a region extending from the central section to a lower edge of each wing along the vertical axis, has a thickness at most half the thickness of the central section; and a second section of each wing, not included in the first section, has a thickness equal to the thickness of the central section.In some embodiments, each wing has a tab on its upper edge to grip and handle the matrix band.

The utility model discloses a rubber barrier convenient for fixing an implanted tooth, which belongs to the technical field of rubber barriers, and comprises a rubber blanket, a limiting component, a support II and two tooth clamping components, the rubber blanket covers the outer surface of the tooth, the tooth clamping components are clamped on the surface of the tooth through the rubber blanket, and the limiting component is arranged on the support II. Support assemblies are installed at the two ends of the second support, the rubber cloth wraps the outer surfaces of the support assemblies and the second support, the tooth clamping assembly comprises a limiting bolt and two sets of clamping blocks, inserting grooves are formed in the ends, close to each other, of the two clamping blocks, the inserting grooves are matched with the limiting bolt, and teeth needing to be treated penetrate through the rubber cloth after the rubber cloth is perforated. According to the utility model, the teeth to be treated are isolated from the oral cavity through the two tooth clamping assemblies, and the two tooth clamping assemblies are clamped on two adjacent teeth of the teeth to be treated through the rubber blanket, so that the rubber blanket is effectively fixed without occupying the operation space of a doctor, and the use convenience can be improved.

There is obtained a cheek retractor that a right outer flange and a left outer flange are provided with a right personal authentication identification code plate portion and a left personal authentication identification code plate portion, respectively, on which two-dimensional barcodes are printed. Since the cheek retractor is mounted on an oral cavity of a patient by holding an arm, which is close to the right personal authentication identification code plate portion and the left personal authentication identification code plate portion, by hand and by pushing the arm inward against a spring force, and an image including a right personal authentication identification code and a left personal authentication identification code is captured, even without experience, an image can be captured to encompass the entirety of a mouth, and since identification information of the patient can be acquired, who the patient is can be grasped.

Dental matrices and crowns are disclosed for making dental veneers and crowns on a tooth. The dental matrix is adapted for the specific tooth type (e.g., premolar, molar, canine, incisor, palatal, lingual) being treated in a single treatment, which results in a veneer on the tooth, which may then be resurfaced, for an aesthetically pleasing appearance. A dental matrix for forming a crown on a tooth includes a body having an expandable tab, which allows the diameter of an opening to be expanded for removal of the matrix from the formed crown.

Aspects of the present invention relate to a dental retractor for controlling the position of soft tissue within a mouth, the dental retractor comprising: a lip retractor for controlling the position of a lip; and a cheek retractor comprising a pair of arms for controlling the position of a cheek; and wherein the dental retractor comprises a tongue retractor removably coupled to the dental retractor for controlling the position of a tongue.

An insert is configured to place one or more dental fillings between a first tooth and a second tooth of a patient. The insert comprises a guide sized and shaped to fit between a first tooth and a second tooth, and an elongate body extending in a longitudinal direction. The elongate body comprises a first curved portion to shape a first filling on the first tooth, a second curved portion to shape a second filling on the second tooth and a gum engagement structure sized and shaped to engage with a gum of the patient.

The invention relates to a composition for isolating tissue, the composition comprising a radiation curable component A1, preferably being present in an amount of at least 40 wt. % with respect to the composition, the radiation curable component A1 comprising a polyether polyol spacer group having a molecular weight (Mw) of 1,000 to 20,000 g / mol, and at least two (meth)acrylate moieties, photo-initiator, guanidyl containing polymer, carrageenan, optionally softener, optionally dye, optionally filler, optionally additives. The invention also relates to a process for temporarily isolating tissue, the process comprising the steps of providing the composition described in any of the preceding claims, placing the composition in contact with tissue, radiation curing the composition at least partially for a time period T1, optionally moving or adjusting the partially cured composition, optionally radiation curing the partially cured composition for a time period T2, wherein T2>T1, removing the composition from the tissue.

The present invention relates to a dental object (100) for attachment to a tooth (101) or to teeth in an intraoral space, with an adhesive area (103) comprising a gutta-percha material (105) for attaching the dental object (100) to the tooth (101) or teeth.

The utility model relates to a rubber barrier face bow which comprises a face bow body and a rubber barrier, the face bow body is provided with a plurality of fixing protrusions used for fixing the rubber barrier, the face bow body is in a U shape and comprises a transverse rod, vertical rods connected to the two ends of the transverse rod and shielding rods formed by upwarping one ends of the vertical rods, and the rubber barrier is connected between the two shielding rods. According to the utility model, the face bow body tilts upwards, and the rubber barrier is connected between the two shielding rods, so that a barrier is formed at the front end of the face bow body, and the phenomenon that flushing fluid splashes to the face of a patient is not easy to occur when an operation area is cleaned by flushing operation.

The stay wire type tooth space wedge comprises a space wedge body and a stay wire, the space wedge body is an elastic body, a through hole is formed in the center of the space wedge body in the length direction in a penetrating mode, and the stay wire is fixedly connected into the through hole and protrudes out of the two ends of the space wedge body. The gap wedge body comprises a small end and a large end, the size of the gap wedge body is gradually increased from the small end to the large end so that the gap wedge body can be in a wedge shape, and at least one concave area is arranged on the outer wall of the gap wedge body in the circumferential direction. According to the pull line type tooth space wedge, the tooth space wedge can be more conveniently placed in a tooth space, the whole tooth space can be plugged tightly after the pull line type tooth space wedge is pulled, the forming piece is made to make close contact with a hole-shaped gingival wall, the pull line type tooth space wedge can adapt to spaces of different tooth spaces, gingival walls on the two sides of a cheek tongue can be plugged tightly, overhang is avoided, multiple sizes do not need to be designed, and the application range is wider.

Aspects of the invention relate to a dental retractor for controlling the position of soft tissue in the mouth, the dental retractor comprising a lip retractor for controlling the position of the lips and a cheek retractor with a pair of arms for controlling the position of the cheeks, the dental retractor comprising a tongue retractor removably coupled to the dental retractor for controlling the position of the tongue.

A splint device (100) for robotically-guided surgery includes elongate first and second splint portions (200, 400) each having opposed longitudinal ends and an interface edge extending between the ends, wherein the respective interface edges (250, 450) are arranged as a complement to each other. First and second alignment elements (800A, 800B) engaged with the first and second splint portions are arranged to interact with each other such that a substantially consistent gap is defined between the first and second interface edges, from the first ends to the second ends of the first and second splint portions. A threaded member (900) is engaged between the first and second splint portions and arranged to advance the first and second interface edges toward each other in response to advancement of the threaded member. A tracking portion (1000) having a kinematic mount (1100) engaged therewith is engaged with the first or second splint portion and extends outwardly therefrom. An associated method is also provided.

The utility model provides a wedge which comprises a soft piece, a main body, a handle and a plurality of stop pieces, the soft piece can generate elastic deformation and comprises a head part and an insertion part which are connected, the head part is used for guiding the insertion part to enter slits between teeth, and the size of the insertion part is gradually increased from the middle to the two ends; the limiting part limits the insertion part to move along the insertion direction or the opposite direction of the insertion direction; the plurality of stop pieces are arranged on the periphery of the soft piece at intervals in the insertion direction, each stop piece can generate elastic deformation, and the stop pieces are gradually away from the soft piece in the insertion direction so as to limit the soft piece to move in the direction opposite to the insertion direction; the main body is strip-shaped and penetrates through the soft piece, and one end of the main body is close to the head part; the handle is connected to the other end of the body. The wedge can be stably inserted into a slit between teeth and is not easy to loosen, and the forming sheet arranged on the peripheral side of the teeth can be attached to the teeth so as to treat the teeth.