287 results about "TOOTH EXTRACTIONS" patented technology

A method for making a dental implant by obtaining images of the tooth pre-atraumatic tooth extraction and post extraction and using those images to computer generate and mill a titanium replacement implant employing CAD / CAM equipment. The implant includes a scalloped neck interface similar to the replaced tooth's scalloped cementoenamel junction, a polished neck area between a root portion and a crown portion, and the numeral for the tooth number imprinted on the implant's facial surface. Chevron retention fins are provided on the root portion for engaging the bone of the tooth socket or osteotomy when the implant is tapped into position. Retention grooves are provided on the crown portion to which a provisional crown is cemented slightly out of occlusion at the time the implant is placed. The provisional crown will be replaced with a permanent crown after osteointegration of the implant has occurred.

A hybrid method for dental implant treatment planning and a corresponding approach to make a surgical guide. After digital treatment planning is performed with CT scan data, a master model is created, which embodies the patient anatomy and entire treatment plan. Jaw bone, tooth surfaces, soft tissues and nerves are all contained by the master model. The plan details including implant sizes and positions, surgical guide drill options, as well as the choice of a surgical kit, are all conveyed by the master model. Meanwhile, models of specially designed “implant inserts (or replicas)” are also generated, which have one end that fits into the implant holes on the master model and another end to make the surgical guide. The master model and inserts are manufactured with rapid prototyping technology. A surgical guide is later on made from them with conventional lab processes. A main characteristic of this approach is that the master model and the inserts are the physical embodiment of a virtual treatment plan. With them, the surgeons can continue the treatment planning for operations like tooth extractions and bone modifications before making the surgical guides. Therefore the treatment planning workflow is a combination of digital treatment planning and a physical model based planning, in other words, a hybrid approach. A differentiator in this invention is the generation of a closed solid model of the soft tissue, as part of the master model, from the scan data. This approach can be applied to create both bone-borne and tissue-borne surgical guides with low cost process, which is a big advantage over other approaches.

A moldable, bioresorbable, biocompatible, non-allergenic crosslinked collagen derivative dressing for the prevention of post extraction alveolar osteitis (dry socket) pain is disclosed along with methods for use of the gel. The dressing is placed at the time of surgery acting as a bone covering obtundant and physiologic scaffolding for the conduction of normal alveolar bone healing sequence of fibroblast ingrowth, blood vessel formation, and reossification of the extraction site defect. In one form, the dressing is a flowable, moldable, biocompatible, bioresorbable dressing prepared by reacting (i) a collagen derivative, such as gelatin or atelocollagen, and (ii) a non-cytotoxic crosslinking agent.

The invention discloses a compound growth factor collagen sustained-release carrier material for promoting repair of various traumas in oral and maxillofacial regions and a method for preparing the same. In order to overcome the defect of poor curative effect existing in the conventional medicaments for treating the traumas of various tissues such as an oral cavity and a face, a bioactive collagen sustained-release material is prepared by combining collagen modified by liposome, chitosan, glycosaminoglycan and the like with one or more of a basic fibroblast growth factor (bFGF), a platelet derived growth factor (PDGF-BB), a vascular endothelial growth factor (VEGF) and a keratinocyte growth factor (KGF). The bioactive collagen sustained-release material is characterized in that: each gram of bioactive collagen sustained-release material contains not less than 10ng of growth factors, and the bioactive collagen sustained-release material has the obvious effect of treating various facial tissue traumas such as tooth extraction wound, oral ulcer, facial nerve injury, mandibular defect and the like. The collagen sustained-release carrier material can continuously release an effective amount of the growth factors to the wound for a long time, fully exert the inducing effect of the growth factors and obviously shorten the time for wound healing so as to fulfill the aim of treatment.

A pharmaceutical composition comprising: (a) meloxicam or a pharmaceutically acceptable salt thereof; and (b) one or more additional pharmaceutically active compounds selected from antacids, sedatives, and central nervous system stimulants, and the use of such composition of an inflammatory disease, symptoms of an inflammatory disease, including various symptoms thereof, and / or headache, toothache, ache after tooth extraction, sore throat, otalgia, arthralgia, neuralgia, lumbago, myalgia, muscle stiffness of shoulder, pain of contusion, pain of fracture, pain of sprain, menstrual pain, traumatic pain, chill, exothermic reaction and / or cold and various symptoms of cold such as sore throat, chill, pyrexia, headache, arthralgia and muscle pain.

A tooth extraction device is provided that uses a clamp assembly to clamp a tooth to be extracted, and a handle for positioning the clamp assembly within a patient's mouth. A cable and an actuator for moving the cable are provided for moving the clamp assembly. The clamp assembly includes a pair of clamp links pivotally connected to a carrier block. The carrier block is slidably movable relative to the handle to extract the tooth after the clamp links are rotated into engagement with opposite sides of the tooth. A base tooth support engages a first neighboring tooth on a proximal side of the clamp assembly, and a removable tooth support engages a second neighboring tooth on a distal side of the clamp assembly. The tooth supports distribute the force of extracting a tooth over the neighboring teeth, thereby allowing more control in manipulating the device during a tooth extraction.

An asymmetrically placement designed to preserve bone by having the coronal aspect being compatible with the bony anatomy at the time of tooth extraction. The implant may be of either a single or two stage design. By modifying the top of the implant fixture to partially mimic the bony anatomy at the time of extraction more crestal bony anatomy can be preserved and bone growth encouraged.

A method for making a dental implant by obtaining images of the tooth pre-atraumatic tooth extraction and post extraction and using those images to computer generate and mill a titanium replacement implant employing CAD / CAM equipment. The implant includes a scalloped neck interface similar to the replaced tooth's scalloped cementoenamel junction, a polished neck area between a root portion and a crown portion, and the numeral for the tooth number imprinted on the implant's facial surface. Chevron retention fins are provided on the root portion for engaging the bone of the tooth socket or osteotomy when the implant is tapped into position. Retention grooves are provided on the crown portion to which a provisional crown is cemented slightly out of occlusion at the time the implant is placed. The provisional crown will be replaced with a permanent crown after osteointegration of the implant has occurred.

The present invention relates to the production of platelet gels formed into beneficial geometric shapes. Specifically the present invention provides a simpler way to introduce platelet gel for specific uses, such as into the cavity of a gum left after a tooth extraction. Molds of predetermined shapes are provided for forming the desired shape.

The invention discloses application of a gel material in tooth extraction. The application is characterized in that the gel is applied to a tooth socket after a tooth is extracted to promote bone healing and formation of a new bone; the gel material is temperature-sensitive hydrogel or solvent-sensitive gel; the phase transition temperature of the temperature-sensitive hydrogel is in a range of 25 to 36 DEG C, namely when the temperature is lower than the phase transition temperature, the gel material is liquid, and when the temperature is higher than the phase transition temperature, the gel material is solid; and the solvent-sensitive gel means that the gel material is not dissolved in water but easily dissolved in a solvent, and the gel material is liquid when being dissolved in the solvent and solid after the solvent is reduced.

Disclosed herein is an apparatus for correcting the position of teeth used in dentistry. The apparatus for correcting the position of teeth is constructed in a structure in which an implantation unit is securely fixed to a palate, e.g., the roof of a mouth, the bony tissue of which is very excellent and the soft tissue thickness of which is small, using a fixing source, opposite suspension parts are suspended by opposite buccal molar areas to draw front teeth backward, whereby the movement of teeth at the molar tooth areas is prevented, and therefore, reimplantation is unnecessary, application points for drawing the front teeth, including the molar teeth, backward are located at the buccal molar areas, whereby the application of a force (a correction force) is easy, it is possible to induce natural extension of a dental arch (an arch-shaped area where teeth are implanted), and the teeth are moved backward to correct the irregularities of teeth, whereby it is possible to considerably reduce a possibility of tooth extraction.

A bone repair material is described that is of putty-like consistency, particularly useful for repairing dental bony defects such as those caused by bone loss resulting from moderate or severe periodontitis, augmenting of bony defects of the alveolar ridge, filling tooth extraction sites, or sinus elevation grafting. The repair material includes a porous, resorbable particulate that is bone-derived or derived from bone-like hydroxyapatite or synthetic hydroxyapatite; and, a resorbable carrier, such as high molecular weight polysaccharides, such as hyaluronic acid. A high concentration of particulate in the putty enhances bone repair and requires a high concentration of carrier to retain the putty at the defect site. For a particulate density of about 1.2 g / cc such as PEPGEN P-15® Bone Graft, a preferred formulation comprises about 55% percent by weight of the putty suspended in a hyaluronic acid gel of about 1.4×106 daltons molecular weight and a final concentration of about 56 mg / cc which material adheres to a bony periodontal defect and does not excessively expand or migrate from the defect when held in place by a conventional flap closure.

An immediate dental implant shell has outer, multiple zones for engaging a soft tissue socket left immediately after tooth extraction from a bone socket. The zones have combinations of different biologic agents, macro- or micro-geometric, or micro- or macro-morphology irregularities to better engage gingival sulcus, junctional epithelium and dento-gingival fiber zones of the soft tissue socket. The shell may also have various guide markings and projections to aide drilling of the implant hole in the bone socket. A dental implant is placed in the drilled implant hole before or after the shell has been placed in the soft tissue socket, and has an axis that is independent of the shell axis so the shell and implant both sit in optimum positions in their respective soft and bone sockets.

A bone repair material is described that is of putty-like consistency, particularly useful for repairing dental bony defects such as those caused by bone loss resulting from moderate or severe periodontitis, augmenting of bony defects of the alveolar ridge, filling tooth extraction sites, or sinus elevation grafting. The repair material includes a porous, resorbable particulate that is bone-derived or derived from bone-like hydroxyapatite or synthetic hydroxyapatite; and, a resorbable carrier, such as high molecular weight polysaccharides, such as hyaluronic acid. A high concentration of particulate in the putty enhances bone repair and requires a high concentration of carrier to retain the putty at the defect site. For a particulate density of about 1.2 g / cc such as PEPGEN P-15® Bone Graft, a preferred formulation comprises about 55% percent by weight of the putty suspended in a hyaluronic acid gel of about 1.4×106 daltons molecular weight and a final concentration of about 56 mg / cc which material adheres to a bony periodontal defect and does not excessively expand or migrate from the defect when held in place by a conventional flap closure.

The invention discloses a bionic electrical activity moldable titanium reinforced composite film material and a preparation method thereof. The bionic electrical activity moldable titanium reinforcedcomposite film material mainly consists of an electrical activity film material and a titanium mesh, wherein the electrical activity film material is a piezoelectric polymer film or a nanometer composite film consisting of a nanometer level piezoelectric ceramic particle filling and a piezoelectric polymer basal body; and the volume by percentage of the piezoelectric ceramic particle filling is 0-20%. Through adjustment of parameters of a preparation technology, bionic electrical properties and molding of a titanium mesh composite reinforced film can be controllably adjusted. The prepared electrical activity titanium mesh reinforced composite film material has favorable effects on performing bone implantation molding, maintaining bone mass and accelerating bone repair, is high in clinicalmaneuverability, is particularly suitable for clinical indications of extensive bone defect molding repair of bone stuffing implantation, oral cavity implant repair bone increment, tooth extraction socket site preservation and the like. The preparation method which is adopted is simple, and high in controllability, and can be applied to industrial production.

The invention relates in general to the fabrication of provisional or temporary crowns utilized to temporarily restore dental implants. The pre-fabricated provisional crowns are designed to specifically mate to the gingival portion of the abutment fixture of a dental implant or the collar of a dental implant. Therefore, the clinician can place the implant alone or in conjunction with a tooth extraction, and may select and place a pre-fabricated provisional crown for that particular implant system in the same appointment. The pre-fabricated provisional implant crown will generally comprise a hollow shell. The shell will be hollow in the interior aspect in order to accommodate implant prosthetic abutment systems.

A dental implant has a hollow shell with outer bio-compatible surface for engaging a soft tissue socket left in gingival tissue after a tooth has been extracted, to promote healing. The shell tapers outwardly from a first to a second perimeter, the second perimeter being asymmetrically scalloped with opposite distal and mesial peaks and opposite lingual and facial valleys between the peaks. A dental implant in the bone socket left after tooth extraction is rigidly connected to a temporary post, the temporary post extending in the shell. The shell engages against the soft tissue socket without gaps and without requiring alignment between the shell and implant axes.

A novel periotome is disclosed for manually cutting periodontal ligaments during a tooth extraction procedure. The periotome carries end tools manufactured from flexible medical grade materials, usually stainless steel. The end tools have flexible cutting blades with serrated edges and use flattened yieldable surfaces to relieve tool tip stresses which occur during exodontic procedures.

The invention provides a traction device for mandibular impacted wisdom teeth, which relates to the field of orthodontics. The device comprises a bracket, a first retention part, a second retention part and a traction part, wherein the bracket is used for being fixed on the lingual sides of mandibular first and second molars on the same side of a mandibular impacted wisdom tooth, the first retention part is used for being fixed on the crown side of the mandibular impacted wisdom tooth, the second retention part is used for being fixed on the buccal side of the mandibular impacted wisdom tooth, and the two ends of the traction part are respectively connected with the bracket and the first retention part; and the bracket comprises a rod-shaped main body, connecting heads, a connecting rod and a cross rod, the connecting heads are respectively arranged at the positions on the rod-shaped main body and corresponding to the mandibular first and second molars, a groove and the cross rod are arranged at the positions on the rod-shaped main body and corresponding to the mandibular impacted wisdom tooth, the cross rod and the rod-shaped main body are parallel to each other and are located on the occlusion side of the rod-shaped main body, and the cross rod is connected with the rod-shaped main body by the connecting rod. The traction device provided by the invention can flexibly adjust the traction direction of an impacted wisdom tooth, and effectively draw the impacted wisdom tooth to separate from an alveolar nerve canal in a relatively short period of time so as to facilitate subsequent tooth extraction treatment.

The invention relates to a composition, in the form of a gel, comprising tranexamic acid for topical oral application to a tooth extraction site either before, during or after the tooth extraction to control dental bleeding, to treat or prevent alveolar osteitis, or to produce or maintain a blood clot. The composition may comprise additional components such as chlorhexidine, methyl cellulose, a sweetener, a flavouring agent (e.g. mint), and a preservative (e.g. potassium sorbate).

A composition for local anesthesia which comprises a local anesthetic such as lidocaine hydrochloride as an active ingredient and an agent for sustaining anesthetic action selected from the group consisting of antihistamines such as diphenhydramine hydrochloride or hydroxyzine hydrochloride, and does not substantially contain catecholamines such as epinephrine, which has increased durability of anesthetic action without using catecholamines, and is useful as a safe composition for local anesthesia for performing short-time dental operations such as tooth extraction or oral surgery operations.

The invention discloses a tooth extraction auxiliary device for stomatology. The tooth extraction auxiliary device comprises a base, wherein a supporting frame is mounted on the base, a mounting groove is formed in the middle of a top frame of the supporting frame, two ends of the top frame of the supporting frame are fixedly connected with traction belts, the supporting frame is connected with an opening assistive device through a thread, the opening assistive device comprises two cylindrical mounting seats, two intermeshed gears are mounted inside the left cylindrical mounting seat through wheel axles, two fixed pulleys are mounted inside the right cylindrical mounting seat through fixing shafts, outer sides of the gears and the fixed pulleys are all fixedly connected with rotating frames, supporting rods are mounted on outer sides of the rotating frames, lip sleeves are fixedly mounted at tops of the rotating frames, and a lip can be easily supported by the lip sleeves, so that a dental patient can open mouth more easily during tooth extraction, the patient has less possibility of shutting up mouth when suffering pain, cheeks of the patient can be well propped open due to the design of the supporting rods, and a doctor can carry out tooth extraction for the patient more easily and smoothly due to a broader field of vision.

The invention relates to a gel material which comprises 3-80 wt% of sucrose acetate isobutyrate colloidal particle, 0.1-30 wt% of pharmaceutical active component, 0-60 wt% of assistant and the balance of water. The gel material is applicable to promoting bone healing and new bone formation in tooth cavities after implementation of tooth extraction. The bone healing is wound healing after implementation of tooth extraction; and the new bone formation is new bone formation in a tooth implantation process. The gel material can also be used for temporary sealing after cavity preparation and during dental pulp disease treatment in the tooth disease treatment process.

A tooth extracting tool including an elongated handle and a pair of tooth engaging members extending out of one end of the handle and a pneumatic or hydraulic piston for tightly gripping the tooth to be extracted between the pair of tooth engaging members. The tool also includes a mechanism for subjecting the grasped tooth to linear oscillation at an opposite end of the handle and for limiting the back and forth linear movement of the tooth to between about plus or minus 5 mm.

A tooth extraction assisting device includes an ultrasonic machine, an ultrasonic hand piece, and 5 different insert tips that are hook-on to the hand piece. The ultrasonic machine outputs a signal with high frequency oscillation. This high frequency oscillation signal received by the ultrasonic hand piece generates a high frequency vibration of the insert tip. A set of 5 different configuration insert tips was designed for a precision surgical cut at the coronal portion of the periodontal ligament around tooth to be extracted. This device also provides a better visibility at the surgical area with the cavitation effect. With the help of the tooth extraction assisting device dental clinician is able to perform tooth extraction with less chair-time without damaging to the buccal alveolar process which increases the chance of immediate implant placement at the same appointment.

The invention discloses a traditional Chinese medicine based narcotic drug used for a tooth extraction operation and a preparation method thereof. The traditional Chinese medicine based narcotic drug comprises the raw medicines as follows: flos rhododendri, rubia cordifolia, flos daturae, pentapetes phoeniceam, glaucescent fissistigma root, carbo of typhae pollen, membrana follicularis ovi, cutch, alangium chinense harms, illicium verum, stellaria media, honeysuckle, herb of pedunculoside and radix angelicae. The traditional Chinese medicine based narcotic drug provided by the invention is prepared based on traditional Chinese theory of traditional Chinese medicine, has the advantages of being free of toxic and side effect, good in effects on relieving pain and stopping bleeding, fast to come into effect and low in cost, does not need injection when in use; when in use, dental tweezers are operated to clamp a cotton ball to drop or apply the liquid medicine into a periodontal pocket of a tooth to be extracted; when the periodontium has no pain, the tooth extraction operation can be carried out; therefore, the feared state of mind of a patient, especially a child and the patient fearful of giving an injection or the patient fainting on acupuncture, can be quelled.

The invention provides a dental tampon which contains fibrous protein and polysaccharides, wherein the fibrous protein contains collagen, and the collagen accounts for 10-90% of the total mass of thedental tampon according to mass percent; and the dental tampon can also contain organic polymeric materials, and the organic polymeric materials account for 20-0.05% of the total mass of the dental tampon according to mass percent. The invention further provides a preparation method of the dental tampon, comprising the steps of stirring and mixing raw materials of the dental tampon, and then sizing and freeze-drying the raw materials in a mold to obtain the integrally formed dental tampon. The dental tampon mainly uses the collagen for stopping bleeding, has the shape conforming to tooth structure characteristics of all age groups, is a disposable sterile non-toxic dental haemostatic material, has convenient use and simple operation, and can stop bleeding for the gingival wound surface caused by tooth extraction.

A bone repair material is described that is of putty-like consistency, particularly useful for repairing dental bony defects such as those caused by bone loss resulting from moderate or severe periodontitis, augmenting of bony defects of the alveolar ridge, filling tooth extraction sites, or sinus elevation grafting. The repair material includes a porous, resorbable particulate that is bone-derived or derived from bone-like hydroxyapatite or synthetic hydroxyapatite; and, a resorbable carrier, such as high molecular weight polysaccharides, such as hyaluronic acid. A high concentration of particulate in the putty enhances bone repair and requires a high concentration of carrier to retain the putty at the defect site. For a particulate density of about 1.2 g / cc such as PEPGEN P-15® Bone Graft, a preferred formulation comprises about 55% percent by weight of the putty suspended in a hyaluronic acid gel of about 1.4×106 daltons molecular weight and a final concentration of about 56 mg / cc which material adheres to a bony periodontal defect and does not excessively expand or migrate from the defect when held in place by a conventional flap closure.

The invention discloses a complex tooth extraction model. The complex tooth extraction model comprises a base (1), a simulated alveolar bone (2) and normal teeth (3), wherein the simulated alveolar bone (2) is fixed on the base (1), and the normal teeth (3) are directly embedded into the simulated alveolar bone (2); at least one tooth position where a complex tooth is prone to appear on the simulated alveolar bone (2) is a vacancy, and the vacancy extends towards the base (1) to form a vacancy groove (4); a detachable complex tooth model block (5) is mounted in the vacancy groove (4); the complex tooth model block (5) comprises a model block alveolar bone (51) and a complex tooth (52) which is embedded into the model block alveolar bone (51). According to the complex tooth extraction model, disease conditions of various complex teeth can be simulated, and the complex tooth extraction model can be repeatedly used and is applicable to tooth extraction exercises of various complex serious destroyed teeth.