Patent ID: 9597164
Date: 2017-03-21
CPC Classifications: A61C,B33Y,Y10T

Claim:
1. A system for orthodontically positioning a patient's tooth, the system comprising: an attachment; a patient removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to receive and apply a resilient positioning force to the patient's teeth, at least one of the teeth receiving cavities comprising an attachment receiving well having a cross sectional shape that conforms to a cross sectional shape of the attachment and being configured to engage with and receive therein the attachment when the orthodontic appliance is worn by the patient and a force is being applied to the attachment; a tactile object disposed between the attachment receiving well and the attachment so as to modulate engagement between the attachment and the attachment receiving well when the orthodontic appliance is worn by the patient; and a base disposed in the attachment receiving well, at least part of the tactile object being physically coupled to the base, and at least one of the base and the tactile object being made from a material having an elastic modulus less than an elastic modulus of a material from which the appliance is formed.