MDS PREP

The secretory product of odontoblasts is:

1) Topocollagen.

2) Calcium salts.

3) Mantle dentin.

4) Hydroxyapatite

Dental Anatomy Answer: 3

Dentinogenesis is the formation of dentin by odontoblasts of mesenchymal origin
located at the periphery of the dental pulp

Dentinogenesis is initiated by the inductive influence of the enamel organ
involving molecular signaling pathways, such as Wnt, Runx-2, and TGF-?. In the
molar tooth, dentinogenesis starts at the late bell stage, and occurs in the
crown as well as root regions.

Predentin, the first organic matrix secreted by odontoblasts, is composed by
proteoglycans, glycoproteins, and collagens.

How soon after the eruption of permanent tooth is the apex usually fully developed?
1. Immediately
2. 3-6 months
3. 2-3 years
4. 6-9 years

Dental Anatomy Answer: 3

Afet tooth eruption in permanent teeth the apex is fully developed after 2-3 years

Which of the following bicuspid are sents the greatest difficulty, when root canal therapy becomes necessary?
1. Maxillary first
2. Maxillary second
3. Mandibular first
4. Mandibular second

Dental Anatomy Answer: 1

Which of the following newly erupted teeth is
MOST likely to exhibit only one pulp horn?
1. #31
2. #28
3. #19
4. #15

Dental Anatomy Answer: 2

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

Dental Anatomy Answer: 2

The third molars are usually expected to erupt at
1. 8 - l2 years
2. 17-25 years
3. l6 years
4. 12 - l5 years

Dental Anatomy Answer: 2

Which of the following is true regarding maxillary molars?
1. Curve inward more sharply from the medial plane on the buccal than do the mandibular molars
2. By their arrangement and design allow room for the powerful masseter muscle.
3. Are set somewhat lingual to the premolars
4. Show a convergence of their buccal surfaces mesially

Dental Anatomy Answer: 2

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 Anatomy Answer: 1

MDS PREP

The secretory product of odontoblasts is:

1) Topocollagen.

2) Calcium salts.

3) Mantle dentin.

4) Hydroxyapatite

How soon after the eruption of permanent tooth is the apex usually fully developed?
1. Immediately
2. 3-6 months
3. 2-3 years
4. 6-9 years

Which of the following bicuspid are sents the greatest difficulty, when root canal therapy becomes necessary?
1. Maxillary first
2. Maxillary second
3. Mandibular first
4. Mandibular second

Which of the following newly erupted teeth is
MOST likely to exhibit only one pulp horn?
1. #31
2. #28
3. #19
4. #15

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

The third molars are usually expected to erupt at
1. 8 - l2 years
2. 17-25 years
3. l6 years
4. 12 - l5 years

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

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MDS PREP

The secretory product of odontoblasts is: 1) Topocollagen. 2) Calcium salts. 3) Mantle dentin. 4) Hydroxyapatite

How soon after the eruption of permanent tooth is the apex usually fully developed? 1. Immediately 2. 3-6 months 3. 2-3 years 4. 6-9 years

Which of the following bicuspid are sents the greatest difficulty, when root canal therapy becomes necessary? 1. Maxillary first 2. Maxillary second 3. Mandibular first 4. Mandibular second

Which of the following newly erupted teeth is MOST likely to exhibit only one pulp horn?1. #31 2. #28 3. #19 4. #15

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

The third molars are usually expected to erupt at 1. 8 - l2 years 2. 17-25 years 3. l6 years 4. 12 - l5 years

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

Explore by subjects

The secretory product of odontoblasts is:

1) Topocollagen.

2) Calcium salts.

3) Mantle dentin.

4) Hydroxyapatite

How soon after the eruption of permanent tooth is the apex usually fully developed?
1. Immediately
2. 3-6 months
3. 2-3 years
4. 6-9 years

Which of the following bicuspid are sents the greatest difficulty, when root canal therapy becomes necessary?
1. Maxillary first
2. Maxillary second
3. Mandibular first
4. Mandibular second

Which of the following newly erupted teeth is
MOST likely to exhibit only one pulp horn?
1. #31
2. #28
3. #19
4. #15

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

The third molars are usually expected to erupt at
1. 8 - l2 years
2. 17-25 years
3. l6 years
4. 12 - l5 years

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