A method for registering a dental model on a tray base includes obtaining a dental model that is an impression of at least some of a patient's teeth; disposing the dental model on a tray base; drilling at least one registration pin hole from a bottom of the tray base, through the tray base, and into a bottom of the dental model while the dental model is disposed on the tray base; and inserting at least one registration pin into the at least one registration pin hole with the at least one registration pin extendable between the dental model and the tray base.