Showing posts with label KCET. Show all posts
Showing posts with label KCET. Show all posts

21.When the malignancy involves the jaw bones the success with radiotherapy alone is

a. Fair b.Good c.Reduced d.Increased

ANS. C


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20. How many teeth (out of 32) in the normal dentition oppose only ONE other tooth?

A. None B. 1

C. 2 D. 4


ANS.D.


Because of the shift of the mandibular teeth in a mesial direction due to the smaller size of the anterior teeth, most teeth have two opposing teeth. That is, they oppose their counterpart in the other arch, and a tooth either mesial or distal to that counterpart. There are two classes of exceptions. One of the exceptions is the mandibular central incisors. These two teeth (#24 and #25) oppose only the maxilary centrals (#8 and #9). The other exception is the maxillary third molars (#1 and #16), which oppose only the mandibular third molars.

Note that the mandibular third molars oppose both the maxillary second and third molars.


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17.The facio-lingual dimension of the Band and Loop space maintainer should be approximately-

A) 8 mm. B) 3.4 mm. C)4.5 mm D)2.10 mm.

ANS. 8 mm.

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