516 results about "Jaw bone" patented technology

A method of growing jaw bone utilizing a device that can receive a sponge (or other material) that includes or is a substance that stimulates bone growth. The device positions the sponge next to the bone to be regenerated and is preferably a wire mesh partially surrounding the bone to be regenerated. The device defines a cavity having at least one or more openings through which the material may be inserted and thus received in the cavity.

A device and arrangement for installation of a fixture in a jaw bone comprises a fixture holder designed to cooperate with a guide member forming part of a template, via which guide member the fixture can be applied in its position in the jaw bone with the aid of the fixture holder. The arrangement is also provided with one or more elements which, with the aid of the guide member, ensure defined positions of the fixture in the vertical and transverse directions. The element or elements is or are arranged on the fixture holder.

The present invention provides an implant system of facilitated use and installation which comprise an implant and a prosthesis support and a method of installation thereof. The prosthesis support disclosed herein includes an abutment and a collar member. Prior art implant systems are mostly made of metallic parts which are assembled with a screw and are shaped to receive a tooth prosthesis. The design of the abutment allows it to be made from highly filled composite materials being of a better optical quality and being easily machinable and further allows its installation without the use of a screwing member. The design of the collar member allows minimization of bacteria growth and tartar formation. The optimization of the implant system proposed herein may reduce stress to the jaw bone and therefore minimize the risk of injury for the patient.

An apparatus includes a template which locates hole positions in a jawbone while the template is separated from the jawbone by gum tissue. The template follows a contour of the gum tissue surrounding the jawbone and has guide holes which receive a cutting tool. Anchoring elements attach the template to the jawbone. A system includes means for scanning an implantation site on a patient's jawbone, simulating the implantation site, and determining nerve-rich areas or nerve paths in the jawbone. A holed template is produced which is separated from the jawbone by at least gum tissue of the patient. Attachment hole positions in the jawbone are located so as to avoid nerve paths. A method of forming holes to attach a dental implant to a patient's jaw bone without surgical intervention in gum tissue of the patient to expose the jawbone is disclosed which avoids impingement on a nerve path.

A patient's obstructive sleep apnea is treated by identifying a patient with sleep apnea attributable at least in part to movement of a base of a tongue of the patient toward a pharyngeal wall of the patient. The tongue is stiffened by an implant sized to be placed within the tongue. A distal portion of the implant is sized to extend within the tongue from a first end near a mandibular-geniohyoid interface to a second end near a base of the tongue. A proximal portion is attached to the first end and adapted to be secured to a jaw bone of the patient following a period of healing after placement of the implant in the tongue.

The present invention provides methods for moving a tooth to a desired position within a patient's mouth using orthodontics including perforating tissue in the oral cavity sufficient to induce an inflammatory response. The perforations may be made in any area of the maxilla or mandible, and any number of perforations may be made that are preferably 0.5 to 1.5 mm diameter, and preferably 1 to 3 mm deep. The invention also provides a device that may be used in conjunction with slow-speed rotary instruments or with manual drivers for providing the perforations. The device has a drill that makes the perforations and a stop that prevents the drill from penetrating the jaw bone beyond a predetermined depth. The invention also provides a kit that supplies the professional with the necessary components in a sealed container to carry out the osteoperforations. The kit may include hand held and rotatory perforating devices, anesthetic, and a soft tissue punch.

Systems and methods for ultrasonic imaging of a jaw and coupling cushions suited for use in the mouth. The system includes a specially configured ultrasonic probe, a position locator module for defining a probe location and transmitting the definition to a central processing unit (CPU) and the CPU. The CPU is capable of receiving digital data from transducers in the probe and receiving the location of the probe and producing an image of at least a portion of a jaw. The method includes providing the ultrasonic probe, defining its location and communicating the location to a CPU and transmitting an signal from a transducer and receiving at least a portion of the signal at at least one of the transducers. The CPU receives transducer data and a location of the probe and produces an image of the at least a portion of the jaw. An ultrasonic coupling cushion is further disclosed.

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.

Method for drilling a hole for placement of an implant therein in which an initial hole is formed in the jaw bone having a diameter smaller than a desired diameter for placement of the implant and a depth smaller than a desired depth for placement of the implant. A flat ledge is formed in the bone around the initial hole by the same drill bit which forms the initial hole. The initial hole is then enlarged to the desired diameter and the desired depth using another drill bit which is designed to contact the ledge when the initial hole has been enlarged to exactly the desired depth. Penetration of the drill bit into the jaw bone once the hole has been enlarged to the desired depth is therefore prevented.

An orthodontic supporting structure of the present invention comprises an implant unit (21) which is implanted in a jaw bone and a connecting unit (22) which includes an arm part (14) having a fastening portion (15). The implant unit (21) has a narrow part (18) in its upper portion (17). The connecting unit (22) further includes an engaging part (26) having an opening (16a) at one end. The engaging part (26) can fit on the narrow part (18) of the implant unit (21). The connecting unit (22) can be attached to the implant unit (21) in a simple way by just sliding the engaging part (26) along the narrow part (18) and then crimping far ends (26b) of the engaging part (26).

The invention relates to the fields of computer-aided technology and maxillofacial plastic medical apparatus and instruments, in particular to an optimal design and manufacturing method for a jaw defect individual restoration. The optimal design and manufacturing method is characterized by comprising the following steps: conducting CBCT scanning on the maxillofacial part of a patient, obtaining DICOM data, guiding the data into three-dimensional modeling software-MIMICS (Materialise, Belgium) to reconstruct a jaw three-dimensional model, designing the individual restoration, designing models of a plurality of virtual screw according to the size of retention screws supposed to be adopted, then moving the models to the appropriate positions of the jaw to simulate the situation to the screw retention restoration, obtaining Von Mises stress and a strain nephogram, and manufacturing entities of various materials through the fast forming technology. The jaw defect individual restoration made through the manufacturing method for the jaw defect individual restoration has good performance in biomechanical properties including breaking strength, stress-strain distribution, the service life and the like. So far, a patient with upper and lower jaw defects accepting an implanting operation is observed for two years, and no bad complications of fracture, exposure and the like happen.

Aspects of the present disclosure are presented for a single surgical instrument configured to grasp, seal, and/or cut tissue through application of therapeutic energy, and also detect nerves through application of non-therapeutic electrical energy. A medical device may include two jaws at an end effector, used to apply therapeutic energy and to perform surgical procedures. The therapeutic energy may be in the form of ultrasonic vibrations or higher voltage electrosurgical energy. One of the jaws may be configured to cut tissue through application of the blade. In addition, one or both of the two jaws may be configured to apply nontherapeutic energy for nerve stimulation probing. The application of therapeutic energy may be disabled while the nontherapeutic nerve stimulation energy is applied, and vice versa. The nontherapeutic nerve stimulation energy may be applied to the use of one or more probes positioned near one or both of the jaws.

The invention discloses a method for building a three-dimensional tooth-and-jaw fusion model. The method includes the steps that data is collected in the occlusion state, and a skull CT image is rebuilt, laser scanning of a gypsum occlusion model is subjected to digital processing; picture processing and the image matching function are based on a reverse engineering software Geomagic Studio, a method based on point matching and the iterative algorithm are combined in the reverse engineering software, a gypsum dentition occlusion model and CT rebuilt dentitions are matched, indistinct CT rebuilt dentitions are replaced, and finally, the three-dimensional tooth-and-jaw fusion model matched in the occlusion state that a CT rebuilt jaw model and the gypsum dentition occlusion model are integrated is obtained. CT imaging artifacts caused by intraoral metal and the error, caused by upper-and-lower-jaw dentition overlapping in the occlusion state, between the occlusion relationship and the practical intraoral occlusion position in the fusion model are reduced, and therefore the accuracy of computer aided design and the treating effect are improved.

The invention discloses an automatic tooth arrangement method and an automatic tooth arrangement device, relating to the medical field of digital orthodontics, and solving the problem that the automatic tooth arrangement is poor in accuracy. The main technical scheme is as follows: the automatic tooth arrangement method comprises the following steps: acquiring three-dimensional data of dentition needing orthodontics and three-dimensional data of craniofacial jaw bone; selecting feature points on the three-dimensional data of the dentition and the three-dimensional data of the craniofacial jaw bone; constructing tooth arrangement planes and dental arch curves according to the selected feature points, wherein the tooth arrangement planes comprise a median sagittal plane, a horizontal plane and a tooth arrangement occlusal plane, and the dental arch curves comprise an upper jaw tooth arrangement curve and a lower jaw tooth arrangement curve; moving teeth in the three-dimensional data of the dentition according to the preset tooth positions, so that a target dentition after orthodontics is formed, and the preset tooth positions comprise the target upper and lower dentition sagittal position, the target upper and lower dentition vertical position, and the target upper jaw and lower jaw among-dentition position. The automatic tooth arrangement method and the automatic tooth arrangement device are mainly used for the tooth arrangement in the orthodontics.

The invention discloses a low-elasticity-modulus titanium-based jawbone implant and a preparation method of the implant. The preparation method mainly comprises the six steps that CT-scanned jawbone section image data are obtained; a rebuilt jawbone three-dimensional digital model is obtained; a jawbone implant digital model of a multi-hole structure is designed and obtained; a machining file of slice layered cross section data is obtained; the selective laser melting technology is adopted for preparing the jawbone implant; and surface treatment is carried out on the implant. The implant is used for treating a patient with jawbone defects, and the CAD digital design technology is used in the design of the implant; and jawbone repairing individualized design and multi-hole support structure design are combined, and through the selective laser melting technology, the low-elasticity-modulus titanium-based jawbone implant is prepared. The implant can meet the individual needs of the patient, and meanwhile can reduce the elastic modulus; and the problems of stress concentration and stress shielding of a traditional jawbone implant are solved, the preparation time is shortened, and the machining difficulty and the production cost are reduced.

A positioning device for dental implant has a post and multiple guides. The post is cylindrical and has a diameter corresponding to a diameter of a hole in a dental model. The guides are mounted detachably on the post and are semi-tubular tabs and each has an inner concave, an inner diameter, and an outer diameter. The guides are mounted concentrically one another. A dentist can use the positioning device to precisely position a drill bit of a drilling device on an edentulous place of a patient's jaw bone and drills a bone cavity suitable for a dental implant. The drill bit can be easily inserted into the patient's mouth without opening excessively.

A method of manufacturing an abutment of an artificial tooth, which includes an implant fixture installed in a jaw bone and a crown defining a contour thereof. The abutment is fixed to the implant fixture to connect the implant fixture to the crown. A three-dimensional image of an oral cavity of a patient is generated on a computer by 3D scanning of a dental plate of plaster. A virtual tooth is designed using the image of the oral cavity, in consideration of a row of teeth in a region from which a tooth is missing, the height of adjacent teeth and alignment with an upper or lower tooth. The shape of the abutment is designed according to the shape of the designed virtual tooth. Data on the designed abutment is transmitted to a precision machine. The designed abutment is cut using the precision machine to have a one body structure.

The screw-type intraossal dental implant has a bottommost implant tip that is located in the apical area and comprises a root part which extends up to said implant tip and which is intended for insertion into a jaw bone. The implant neck extending up to the coronal area is placed on the root part and is intended for being placed inside the gingivae. The outer thread on the root part is preferably self-cutting. The invention is characterized in that the root part comprises an essentially parabolic outer contour with the implant tip serving as the vertex. The inventive outer contour makes it possible to obtain an improved primary stability and guarantees, to a great extent, the long-term success of the implant.

An implant hole guide is used in drilling a hole in jaw bone for a dental implant. A bar of the guide has opposite ends and opposite surfaces, one being adapted to engage a jaw bone adjacent the site of a hole to be drilled. A guide bore extends in the bar adjacent one end for guiding the drill. First and second guide posts extend from the opposite surfaces of the bar adjacent the other end. The posts are parallel to the bore and are spaced from the bore by a minimum center-to-center implant distance sufficient to maintain at least 3 mm of jaw bone between adjacent implant receiving holes in the jaw bone.