Align Technology, Inc.

Anton Terekhov

Rene M Sterental

Artem Borovinskih

Mikhail Minchenkov

Ivan Pavlov

Vadim Matov

John Y Morton

Jihua Cheng

Fuming Wu

Tzishing Jesse Lim

A method of planning an orthodontic treatment for a patient may include receiving a digital representation of the patient's dentition in an initial arrangement, determining a first geometry for an upper shell of an orthodontic appliance. The first geometry may include a first plurality of tooth-receiving cavities shaped to receive an upper jaw of the patient's dentition and an upper cutout disposed along an upper gingival edge of the upper shell. The method may also include determining a location of an upper elastic band receiving member. The location of the upper elastic band receiving member may correspond to a position of the upper cutout. The location of the upper elastic band receiving member may be determined so as to generate a tooth repositioning force to facilitate repositioning of the patient's dentition when an elastic band is secured to the upper elastic band receiving member.

Devices and methods for dental appliances with cutouts

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.

Systems for treatment planning with overcorrection

An orthodontic positioning device including a patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth provided in one of an upper jaw and a lower jaw and comprising a cutout operable to expose an orthodontic elastic band receiving member. The cutout corresponds to a material removed along a gingival edge of the patient removable orthodontic tooth positioning appliance and is operable to be disposed over a tooth, is shaped to extend between a first point of a gingival line of the tooth and a second point of the gingival line of the tooth, and has a gingival-facing surface arrangeable between the elastic band receiving member and an occlusal surface of the tooth wherein the cutout is arcuate

Orthodonitic appliance with precision cutout

Method to manufacture aligner by modifying tooth position

An orthodontic positioning device and methods for making an orthodontic positioning device including a first patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth provided in one of an upper jaw and a lower jaw. The first appliance includes a hook configured to receive an orthodontic elastic band. The orthodontic positioning device also includes a second patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to a patient's teeth provided in the other of the upper jaw and the lower jaw. The second appliance includes a cutout operable to expose an orthodontic elastic band receiving member.

Automatic placement of precision cuts

Growing community of inventors

Moscow, Russia

Anton Terekhov