Method, system and model for indirect bonding
A physical model of at least a portion of a patient's dentition has model dental surfaces corresponding to real dental surfaces of the patient's dentition. The physical model includes one or more targets, each configured for facilitating placement of an orthodontic appliance on the model at a desired location. The targets lack mechanical stops that are outwardly protruding from the original model dental surfaces. Also provided are a method of manufacturing a physical model for use in indirect bonding procedures, a method for indirect bonding for use in an orthodontic procedure, a method for providing an indirect bonding transfer tray for use in an orthodontic procedure, and a system for providing a physical model for use in indirect bonding orthodontic procedures.
1. A method for manufacturing a dental model for facilitating placement of an orthodontic appliance on a patient's dentition, the method comprising:
forming a positive physical model of at least a portion of the patient's dentition, including one or more teeth; and
forming a recess in a surface of at least one of the one or more teeth of the positive physical model, the recess being formed at a desired location for the placement of the orthodontic appliance and shaped to receive at least a portion of the orthodontic appliance and constrain movement thereof in order to facilitate the placement of the orthodontic appliance at the desired location on the positive physical model, the recess including at least one edge face to which at least one edge of the orthodontic appliance abuts against to constrain movement of the orthodontic appliance at the desired location.
2. The method of claim 1 , further comprising positioning the orthodontic appliance in the recess at the desired location on the positive physical model.
3. The method of claim 2 , further comprising:
positioning a transfer tray over the positive physical model so as to embed the orthodontic appliance into the transfer tray;
removing the transfer tray and the orthodontic appliance embedded therewithin from the positive physical model; and
positioning the transfer tray over the patient's dentition so as to transfer the orthodontic appliance to the patient's dentition at a desired location corresponding to the desired location on the positive physical model.
4. The method of claim 1 , wherein the orthodontic appliance comprises a buffer layer and a recessed mechanical stop shaped to receive the buffer layer.
5. The method of claim 4 , wherein the orthodontic appliance comprises an appliance base and the buffer layer is removably attached to the appliance base.
6. The method of claim 1 , wherein the at least one edge face projects into a model dental surface.