A quantity of a photocurable composition, such as an orthodontic adhesive
containing a photoinitiator, is placed between the base of an orthodontic
appliance and a replica of a patient's tooth structure. The replica is
made using a material that transmits actinic radiation. As the appliance
is pressed into firm contact with the replica tooth structure, an outer
surface of the photocurable composition assumes the configuration of the
underlying portion of the replica tooth structure. Actinic radiation is
then directed to the photocurable composition, and at least part of the
actinic radiation is directed through the replica tooth model in order to
harden the photocurable composition. The hardened composition provides a
contoured bonding surface having a shape that matches corresponding
regions of the patient's tooth structure. Methods are also disclosed for
making an orthodontic indirect bonding transfer apparatus for use with
appliances having a contoured bonding surface.