Classification of Alveolar Ridge Defect Class I – Horizontal – labiolingual defect with normal ridge height Class II – Vertical – coronolabial defect with normal ridge width Class III – Combination – horizontal and vertical ridge defect

Factors when replacing posterior teeth with an Implant Supported Fixed Partial Denture. 1. Posterior placement of implants of adequate lngth may be inhibited by anatomic features such as location of mandibular Canal. 2. If there are natural teeth in the opposite jaw, sufficient space may not be available for the abutments or to provide sufficient [...]