AIPGE 2005 Dental 18

171. The permanent anterior tooth that most often shows variation in size is the -

1. Mandibular canine.
2. Mandibular central incisor.
3. Maxillary canine.
4. Maxillary lateral incisor.

172. Relative to primary mandibular incisors, permanent mandibular incisors erupt -

1. Lingually.
2. Facially.
3. Distally.
4. Mesially.

173. In cephalometrics, the Frankfort plane is constructed -

1. Horizontally from nasion through portion.
2. Horizontally from nasion to the superior aspect of external auditory meatus.
3. Vertically from orbitale through the maxillary canine.
4. Horizontally from orbitale to the superior aspect of the external auditory meatus.

174. The last primary tooth to be replaced by a permanent tooth is usually -

1. Maxillary canine.
2. Mandibular canine.
3. Maxillary first molar.
4. Mandibular second molar.
175. Which is the predominant factor in the formation of the alveolar process?

1. Eruption of teeth.
2. Normal process of growth.
3. Lengthening of the condyle.
4. Overall growth of the bodies of the maxilla and the mandible.

176. Resistance units of equal size pulling against each is an example of which form of
anchorage -

1. Cortical anchorage.
2. Reciprocal anchorage.
3. Reinforced anchorage.
4. Stationary anchorage.

177. A single force applied at which point of a tooth will allow complete translation of the tooth -

1. At the apex.
2. At the incisal edge.
3. At the center of resistance.
4. At the center of rotation.

178. Which of the fibers attached to cementum are most likely to contribute to replace of tooth rotation -

1. Apical fibers.
2. Gingival group of fibers.
3. Horizontal fibers.
4. Oblique fibers.

179. What is the average amount of Leeway space available in the upper arch?

1. 0.9 mm.
2. 1.8 mm.
3. 3.5 mm.
4. 5.0 mm.

180. As age advances, the human profile generally -

1. Remain the same.
2. Increase in convexity.
3. Decreases in convexity.
4. Decreases in concavity.