247 results about "Tooth movement" patented technology

An interactive, software-based treatment planning method to correct a malocclusion is described. The method can be performed on an orthodontic workstation in a clinic or at a remote location such as a lab or precision appliance manufacturing center. The workstation stores a virtual three-dimensional model of the dentition of a patient and patient records. The virtual model is manipulated by the user to define a target situation for the patient, including a target archform and individual tooth positions in the archform. Parameters for an orthodontic appliance, such as the location of orthodontic brackets and resulting shape of an orthodontic archwire, are obtained from the simulation of tooth movement to the target situation and the placement position of virtual brackets. The treatment planning can also be executed remotely by a precision appliance service center having access to the virtual model of the dentition. In the latter situation, the proposed treatment plan is sent to the clinic for review, and modification or approval by the orthodontist. The method is suitable for other orthodontic appliance systems, including removable appliances such as transparent aligning trays.< / PTEXT>

A computer-implemented method treats teeth by generating a digital arrangement of teeth; specifying a sequence of tooth movements to move the teeth to a target arrangement; and generating one or more appliances in accordance with the specified sequence of tooth movements, the appliances comprise polymeric shells having cavities and wherein the cavities of successive shells have different geometries shaped to receive and resiliently reposition teeth from one arrangement to a successive arrangement.

Orthodontic systems and related methods are disclosed for designing and providing improved or more effective tooth moving systems for eliciting a desired tooth movement and / or repositioning teeth into a desired arrangement. Methods and orthodontic systems include the generation of an overcorrection in the tooth-receiving cavities of an appliance worn in the dentition. The overcorrection may provide an improved and more accurately applied force or moment applied to a tooth. The overcorrected force or moment can move a tooth closer to a desired position than if not overcorrected as sufficient force can still applied to the tooth as it gets closer to the desired position. The overcorrected force or moment may also better target the root of the tooth where the biological response to tooth movement occurs. The overcorrection may be calculated in various ways as described herein.

Methods are provided for regulating bone remodeling or tooth movement, comprising allowing a functional appliance to exert a force on oral or maxillofacial bone, muscle, or soft tissue, or one or more teeth of a patient in need thereof; and administering an effective amount of light to the oral or maxillofacial bone, muscle, or soft tissue, or one or more teeth, wherein the light is administered before, during, or after the force is exerted. Methods are also provided for regulating bone remodeling, comprising administering an effective amount of vitamin D to an oral or maxillofacial bone, muscle, or soft tissue, or to one or more teeth of a patient in need thereof; and administering an effective amount of light to the oral or maxillofacial bone, muscle, or soft tissue, or to the one or more teeth. Apparatuses useful for providing light therapy and / or vitamin D is also provided.

The present invention relates to systems and methods for detecting deviations from an orthodontic treatment plan. One method includes receiving a tracking model, performing a matching step between individual teeth in a plan model and the tracking model, comparing the tracking model with the plan model, and detecting one or more positional differences.

The present invention provides orthodontic appliances and systems, and related methods, for applying a force to a target tooth as an appliances is worn by the patient. One positioning appliance includes a tooth positioning appliance having teeth receiving cavities shaped to apply a positioning force to the patient's teeth. The appliance includes a spring-loaded tooth movement device disposed in the appliance so as to engage an attachment mounted on a surface of a patient's tooth and apply a force to the tooth.

The invention discloses a digitalized making method of a dental orthodontic appliance. The digitalized making method comprises the steps of acquiring CT (Computed Tomography) data and carrying out intraoral scanning; reconstructing a three-dimensional oral tissue model to obtain bones and teeth; reconstructing intraoral scanning data to obtain gingivas and accurate teeth; compounding two models to obtain a composite model; calculating key parameters including tooth movement amount, required orthodontic force and moment, and force applying mode and the like, discharging a treated target dentition; accurately calculating a mode of moving each tooth and a movement distance or an angle, calculating a required force and moment; calculating required shape and size parameters of an SMP force applying mechanism, and further designing a force applying unit; generating an immobilizing structure according to the three-dimensional model of each tooth on the basis of the surface; designing accessories according to certain special movements so as to obtain an integral structure of an integrated orthodontic appliance; making an integrated orthodontic appliance by using a three-dimensional printer integrally formed from multiple materials, and providing the integrated orthodontic appliance for being clinically used by a doctor; and during clinical use, heating the integrated orthodontic appliance to a phase change temperature to ensure that the force applying unit becomes soft and is conveniently adhered and fixed on the surface of the tooth. An integrated fixed appliance manufactured by using the method comprises a force applying unit, an immobilizing unit and accessories.

The orthodontic alignment of misaligned teeth includes preparing a digital and / or physical overlay model which is the superimposed positioning of the patient's original misaligned dentition with the target or final position. The superimposition of one upon the other creates an open space through which teeth may move in a natural manner, allowing for a treatment plan that takes into account the physical interaction of one tooth with another or the differences in tooth movement rates due in part to differences in underlying bone density or the like. An aligner tray fabricated using the model will likewise represent the before and after tooth positions and will also have the open space to allow tooth movement. Force exerting structures are preferably placed into the aligner tray to impinge upon the patient's teeth in a prescribed manner when the aligner tray is inserted into the patient's oral cavity.

A computer-implemented method treats teeth by generating a digital arrangement of teeth; specifying a sequence of tooth movements to move the teeth to a target arrangement; and generating one or more appliances in accordance with the specified sequence of tooth movements, the appliances comprise polymeric shells having cavities and wherein the cavities of successive shells have different geometries shaped to receive and resiliently reposition teeth from one arrangement to a successive arrangement.

A computer configured appliance (10) that applies amplified leverage for orthodontic correction of malocclusions that incorporates a number of computer configured prong units (20) for attachment to selected teeth. Each prong unit (20) is connected to a detachable placement template (28) for positioning the prong units (20) at a computer selected tooth location. Once positioned, the prong units (20) are bonded with dental bonding cement (40) to a predetermined site of each tooth. A successive series of computer configured segmented compartment arches (42) are connected by interproximal material (48), with each arch having elastic entry compartments (38), are snapped onto each prong unit (20). When each arch (42) has achieved the optimum tooth movement, the arch (42) is unsnapped, removed and replaced by snapping in the next arch in the series, which has a higher sequential increment of movement.