This fact is from FPD — Tooth Preparation & Pontics in Prosthodontics. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Antes law: root surface of abutments must be greater than or equal to pontics
Sanitary pontic = posterior mandible
Modified ridge lap = posterior maxilla = most hygienic fixed pontic
Ovate pontic = best esthetics
Tylman formula for fixed bridge design
Connector types: rigid and non-rigid.