d. All of the above Ans: (a)
239. Smoking and tobacco use can lead to failure of implant because a. Smoking is a known risk for osteoporosis b. Poor healing capacity c. Infection due to impaired organ function d. All of the above Ans: (d)
240. It is very important to evaluate this anatomical structure before placement of an implant in the posterior maxilla a. Posterior palatal seal area b. Maxillary tuberosity c. Maxillary sinus d. Both (a) and (c) Ans: (c)
241. Anatomical structures of maxilla pertinent to treatment planning of an implant patient a. Maxillary sinus and canine fossa b. Incisive papilla, labial and buccal frenum c. Canine fossa and incisive foramen d. Both (a) and (c) e. Both (a) and (b)