1. A computerized system for IPR tooth modeling of a patient to facilitate orthodontic treatment, said computerized system comprising: a microprocessor comprising a plurality of algorithms; a memory device; and wherein said computerized system for IPR modeling is configured for: determining whether stripping is needed for a tooth between any neighboring teeth; generating an three-dimensional IPR tooth model for said tooth based on potential collision with any neighboring teeth; and utilizing said IPR tooth model to facilitate treatment planning.