This fact is from Maxillofacial Prosthetics — Obturators in Prosthodontics. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Surgical obturator first then Interim obturator then Definitive obturator
Aramany classification for maxillectomy defects
Speech bulb for velopharyngeal insufficiency
Feeding plate for cleft palate infant
Orbital prosthesis retained by implants or adhesive.