Prosthodontics & Occlusion · single question
A pontic in the premolar region that is difficult to clean is BEST described as:
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Correct answer: A. Ridge-lap pontic
- A. Correct. The ridge-lap pontic (or saddle pontic) contacts both the buccal and lingual slopes of the residual ridge in a concave fashion, making it extremely difficult to clean. It is NOT recommended due to plaque accumulation. It is the answer to 'which is most difficult to clean.'
- B. Sanitary (hygienic) pontic is the easiest to clean — it is suspended above the ridge with no contact.
- C. Modified ridge-lap contacts only the buccal slope — it is easier to clean than the full ridge-lap.
- D. Ovate pontic contacts the ridge in a convex dimple — it is actually easy to clean with floss.
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