Pontic design of an FPD:
- a. Same size buccolingually of the missing tooth
- b. Smaller than missing buccolingually.***
- c. Wider buccolingually
- d. None of the above.
The correct answer is (b), smaller than missing buccolingually.
The pontic is the part of the fixed partial denture (FPD) that replaces the missing tooth. It is important to design the pontic correctly to ensure that it is both functional and aesthetic.
The buccolingual (cheek to tongue) dimension of the pontic should be smaller than the buccolingual dimension of the missing tooth. This is because the pontic does not need to support the cheek or tongue to the same extent as a natural tooth.
A pontic that is too wide buccolingually can make it difficult for the patient to floss and clean their teeth, which can lead to plaque buildup and tooth decay. It can also make the pontic look bulky and unnatural.
The other options are incorrect:
- (a) A pontic that is the same size buccolingually as the missing tooth will be too wide and can cause the problems described above.
- (c) A pontic that is wider buccolingually than the missing tooth will be even more too wide and will definitely cause the problems described above.
- (d) None of the above is incorrect because the correct answer is (b).
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Prostho fixed