Each of the following PDL fiber groups is found in association with a central incisor EXCEPT one. Which one is this EXCEPTION? 1. Apical 2. Interradicular 3. Horizontal 4. Alveolar crest
Dental AnatomyAnswer: 2
The permanent mandibular second molar differs from the permanent mandibular first molar in the number of
1. marginal ridges
2. roots
3. cusps
4. lingual grooves
Dental AnatomyAnswer: 3
The secretory product of odontoblasts is: 1. Topocollagen. 2. Calcium salts. 3. Mantle dentin. 4. Hydroxyapatite
Dental AnatomyAnswer: 3
Which of the following devices accurately locates the hinge axis position of the mandible? 1. Kinematic facebow 2. Arbitrary facebow 3. Wax recording device 4. Average value facebow
Dental AnatomyAnswer: 1
Which of the following anatomic facts should be considered before scaling a permanent maxillary canine?
1 Presence of proximal groove on dis tal surface
2. Presence of proximal groove on me sial surface
3. Presence of a mesial development depression on the crown
4. Presence of proximal grooves on both mesial and distal surfaces
Dental AnatomyAnswer: 4
Which of the following is the first formed portion of the dentin? 1. Circumpulpal 2. Intertubular 3. Transparent 4. Mantle
Dental AnatomyAnswer: 4
Considering root morphology, which of the following teeth MOST readily lend themselves to rotation during extraction? 1. Maxillary central incisor 2. Mandibular central incisor 3. Mandibular lateral incisor 4. Mandibular canine
Dental AnatomyAnswer: 1
Which of the following are the tissues immediately adjacent to the periodontal ligament? 1. Dentin and lamina dura 2. Cementum and alveolar bone 3. Gingiva and alveolar plate 4. Bundle bone and intermediate plexus
