Question: Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in______________?

• 1. Maxillary first molar
• 2. Mandibular second premolar
• 3. Mandibular first molar
• 4. Maxillary second premolar

Question: Which of the following are the unctions of contact areas______________?

• 1. Distribution of occlusal stresses
• 2. Protection of periodontium
• 3. Stabilization of dental arches
• 4. All of the above

Question: Which four mandibular teeth are so aligned that when viewed from the occlusal, a straight line may be drawn bisecting the contact areas_____________?

• 1. 5,6,7,8
• 2. 4,5,6,7
• 3. 3,4,5,6
• 4. 2.3.4.5

Question: Contact areas of anterior teeth which are placed in centre of middle third ____________?

• 1. Mesial contacts of maxillary lateral and canine
• 2. Distal contacts of maxillary centrals and laterals
• 3. Distal contacts of maxillary laterals and canine
• 4. Mesial contacts of maxillary first and second premolar

Question: Which of the following do not contribute to arch stability ?

• 1. Cusps
• 2. Root forms
• 3. Embrasures
• 4. Periodontal fibers

Question: Mesial contact area of the permanent canine is at the______________?

• 1. Middle third
• 2. Junction of the incisal and middle thirds
• 3. Junction of the middle and cedrvical thirds
• 4. None of the above

Question: Distal contact of upper first premolar is________________?

• 1. Lower than mesial contact area
• 2. Little cervical to junction of occlusal and middle third of crown
• 3. Higher than mesial contact area
• 4. A and B

Question: The contact area on the distal surface of a maxillary first premolar should be placed in________________?

• 1. Middle 3rd of proximal surface with lingual embrasure greater than the facial embrasure
• 2. Occlusal 3rd of proximal surface with the lingual embrasure greater than facial embrasure
• 3. Occlusal 3rd of proximal surface with facial embrasure greater than lingual embrasure
• 4. Middle 3rd with facial embrasure greater than the lingual embrasure

Question: The tooth that is commonly seen in an abnormal relation and contact with its adjacent teeth of the same arch is ________________?

• 1. Mandibular first premolar
• 2. Mandibular lateral incisor
• 3. Maxillary central incisor
• 4. Maxillary lateral incisor

Question: Largest embrasure lies between______________?

• 1. Maxillary central incisors
• 2. Maxillary central and lateral incisor
• 3. Maxillary canine and first premolar
• 4. Maxillary lateral incisor and canine