Prosthodontics & Occlusion · single question
Which type of pontic is used ONLY for mandibular molar replacement because it causes phonetic disturbances in the maxillary arch?
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Correct answer: A. Hygienic (sanitary) pontic
Hygienic (sanitary) pontic has a convex tissue surface with an open space between pontic and ridge — allows easy cleaning but creates air space causing phonetic disturbances (sibilant sounds). Used ONLY for mandibular molars where esthetics/phonetics are less critical.
- A. CORRECT. Hygienic (sanitary) pontic — mandibular molars only. Open space causes phonetics problems in maxillary arch.
- B. Modified ridge lap is most common for esthetic areas — facial contact only, lingual open.
- C. Saddle/ridge lap pontic has maximum tissue contact — best esthetics, worst hygiene. Not a mandibular-only pontic.
- D. Ovate pontic = best esthetic option (requires tissue preparation) — used in high esthetic anterior maxilla.
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