An indirect bonding apparatus is made by initially placing spacer material over
a replica of the patient's tooth structure. A tray is then formed over the spacer
material and hardened. Next, the spacer material is removed from the tooth replica
and orthodontic appliances are placed on the replica at desired locations. A matrix
material is placed between the tray and the replica and allowed to harden. Optionally,
the apparatus includes features for facilitating removal of the transfer apparatus
after the bonding procedure has been completed, and features for applying firm,
uniform pressure to the appliances during the bonding procedure. Other aspects
of indirect bonding are also described.