A dental implant with improved sealing capacity utilizes materials compatible with both hard and soft tissues to not only osseointegrate, but also form physiological or static seals with gingival tissue to reduce incidents of perio-implantitis and soft tissue sloughing. Disclosed embodiments contemplate the addition of a biocompatible top insert about an implant which will encourage either physiological integration or at least static sealing of the soft tissue about the implant. The top insert may be fashioned of any biocompatible material, though bone and other similar mineral structures may be utilized. The top insert may be fashioned entirely of the biocompatible material, be impregnated with the material, or the material my be formed into a ceramic surface layer about the insert.

Methods of fabricating orthodontic alignment devices. First forces may be applied to teeth of a digital model to simulate movement of the teeth from one stage of an ordered sequence of stages to a next stage. The first forces may include one or more unwanted forces that move one or more teeth of the digital model in an unwanted direction. One or more forces may be applied to the palate of the digital model that results in second forces applied to the teeth of the digital model to replace or offset the one or more unwanted forces. A shape for the orthodontic alignment device may be determined based on the first and second forces applied to the teeth and in combination with the one or more forces applied to the palate of the digital model. An orthodontic alignment device may be fabricated based on the determined shape.

At least one surgical plaque is provided, which has at least one fixation plaque so as to fix the separated bone parts of the lower and upper jaws in orthognathic surgery. Accordingly, its novelty is to include the following: at least one vertical extension that is connected from one side of said fixation plaque so as to fix the broken parts of 1.sup.st mandibula, and at least one carrier element provided to move linearly on said vertical extension so as to provide skeletal anchorage.

A removable orthodontic assembly to be used in a user's mouth, including: a frame member configured to be removably positioned proximate a lingual portion of the user's teeth; a first connector member, wherein the first connector member comprises a first end extending proximate to a labial portion of the user's teeth and a second end engaging the frame member; and a labial bow configured to be removably positioned proximate to the labial portion of the user's teeth having a first end and a second end, wherein the labial bow is configured to removably engage the first connector member.

A semiconductor device includes a transistor comprising: a plurality of layers, wherein each of the plurality of layers has at least one Group III-V compound material; a gate electrode operatively coupled to at least one of the plurality of layers; a source electrode disposed on a first side of the gate electrode; a drain electrode disposed on a second side of the gate electrode; a field plate disposed between the gate electrode and the drain electrode; and a plurality of conductive lines disposed above the gate electrode, the source electrode, and the drain electrode. The semiconductor device further includes a plurality of test structures, wherein each of the test structures, including a first metal pattern and a second metal pattern, emulates at least one of the gate electrode, the source electrode, the drain electrode, the field plate, or at least one of the plurality of conductive lines.

Disclosed are apparatuses and techniques for distalizing, mesializing and/or expanding teeth in the upper or lower dental arch of a patient's mouth to make room for crowded or protruded teeth located in the anterior arch region to distally/mesially and/or laterally shift into. In some aspects, an apparatus includes a body; a first arm coupled to an adjustment mechanism of the body and attachable to a molar; a second arm coupled to the apparatus body and attachable to a non-molar tooth; and an anchorage device attachable to a bone in the mouth, which the first arm is configured to transfer a force onto the molar when the adjustment mechanism is actuated to cause movement of the molar in the dental arch, and which the anchorage device is operable to positionally stabilize the body and the second arm to prevent movement of the non-molar tooth in the dental arch.

Orthodontic appliances and methods of manufacturing are disclosed. Manufacturing an appliance can include obtaining position data corresponding to an original tooth arrangement (OTA) of a patient's teeth, obtaining data corresponding to a desired final tooth arrangement (FTA) of the patient's teeth, and determining displacements between the OTA data and the FTA data. Based on the determined displacements, a configuration of an orthodontic appliance is determined. The appliance includes an anchor configured to be positioned adjacent the patient's teeth, and a plurality of arms each extending away from and coupled to the anchor, the arms configured to be secured to the patient's teeth. When the appliance is installed, the arms urge individual teeth from the OTA toward the FTA.

A device for arranging a fabricated dental apparatus with respect to jaw members of a patient during a restorative dental procedure includes a main body and a stabilizer portion. The main body is configured to support the fabricated dental apparatus and includes either a mandible surface configured to engage a mandible of a patient or a maxillary surface configured to engage a maxilla of a patient. The stabilizer portion includes a maxillary surface or a mandible surface, respectively, and is configured to be removably fitted to a maxilla or mandible of the patient, respectively. Thus, the main body and the stabilizer portion predictably position the fabricated dental apparatus with respect to the mandible and the maxilla to facilitate installation of the dental apparatus onto the mandible and the maxilla in a proper alignment.

The present disclosure describes an antimicrobial dental device for tissue regeneration comprising: a main body comprising an interior and an exterior surface; electrodes to stimulate the tissue to regenerate and eliminate bacteria, connected by an electrical circuit; wherein the plurality of electrodes is impregnated throughout the interior of the main body for creating micro-electric fields; a plurality of channels oriented from the outer surface towards the interior of the main body to receive a fluid and direct it to the electrical circuit for creating an electric flow; an array of pillars which are hydrophilic, wherein the space between each pillar of the pillar array forms a network of capillary channels to receive and retain the electric flow from the plurality of channels near the tissue; a hydrophobic and insulating zone inside the main body to repel the electric flow in a zone of the tissue to be protected.

The invention discloses a modular surgical bone screw assembly having a threaded base portion and a screw head adapted to attach a variety of structures to bone. The features of the screw include a modular design for the assembly that separates the function of anchorage to the recipient bone to one of the modules of the device (threaded portion) from the other function of attaching another element (such as bone block, membrane, orthodontic wires, elastics etc) to a second module (the screw head). The design also allows the head to be exchanged after the implant has been placed.