MDS PREP

A tooth makes its appearance in the oral cavity usually when

1. all of the crown is completed

2. all of the root is completed

3. one half of the root is completed

4. one half of the crown is completed

Dental Anatomy Answer: 3

A tooth makes its appearance in the oral cavity usually when one half of the root is completed

The beginning of active eruption of a human tooth occurs

1. before the root has begun to develop

2. coincidental with the beginning of root formation

3. before the root has begun to develop

4. after one half of the root is formed

Dental Anatomy Answer: 4

The beginning of active eruption of a human tooth occurs after one half of the root is formed

Which of the following describes the anatomic progression from mandibular first to third molars?
1. The roots become more divergent.
2. The crowns and roots become longer.
3. The crowns and roots become shorter.
4. The crowns become longer, but the roots get shorter.

Dental Anatomy Answer: 3

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

Dental Anatomy Answer: 3

Specific gravity of enamel is:

1) 1.9

2) 2.2

3) 2.5

4) 2.8

Dental Anatomy Answer: 4

How many pulp horns are usually present in a typical primary mandibular first molar?
1. 1
2. 2
3. 3
4. 4

Dental Anatomy Answer: 4

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 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

MDS PREP

A tooth makes its appearance in the oral cavity usually when

1. all of the crown is completed

2. all of the root is completed

3. one half of the root is completed

4. one half of the crown is completed

The beginning of active eruption of a human tooth occurs

1. before the root has begun to develop

2. coincidental with the beginning of root formation

3. before the root has begun to develop

4. after one half of the root is formed

Which of the following describes the anatomic progression from mandibular first to third molars?
1. The roots become more divergent.
2. The crowns and roots become longer.
3. The crowns and roots become shorter.
4. The crowns become longer, but the roots get shorter.

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

Specific gravity of enamel is:

1) 1.9

2) 2.2

3) 2.5

4) 2.8

How many pulp horns are usually present in a typical primary mandibular first molar?
1. 1
2. 2
3. 3
4. 4

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

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MDS PREP

A tooth makes its appearance in the oral cavity usually when 1. all of the crown is completed 2. all of the root is completed 3. one half of the root is completed 4. one half of the crown is completed

The beginning of active eruption of a human tooth occurs 1. before the root has begun to develop 2. coincidental with the beginning of root formation 3. before the root has begun to develop 4. after one half of the root is formed

Which of the following describes the anatomic progression from mandibular first to third molars?1. The roots become more divergent. 2. The crowns and roots become longer. 3. The crowns and roots become shorter. 4. The crowns become longer, but the roots get shorter.

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

Specific gravity of enamel is: 1) 1.9 2) 2.2 3) 2.5 4) 2.8

How many pulp horns are usually present in a typical primary mandibular first molar?1. 1 2. 23. 34. 4

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

Explore by subjects

A tooth makes its appearance in the oral cavity usually when

1. all of the crown is completed

2. all of the root is completed

3. one half of the root is completed

4. one half of the crown is completed

The beginning of active eruption of a human tooth occurs

1. before the root has begun to develop

2. coincidental with the beginning of root formation

3. before the root has begun to develop

4. after one half of the root is formed

Which of the following describes the anatomic progression from mandibular first to third molars?
1. The roots become more divergent.
2. The crowns and roots become longer.
3. The crowns and roots become shorter.
4. The crowns become longer, but the roots get shorter.

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

Specific gravity of enamel is:

1) 1.9

2) 2.2

3) 2.5

4) 2.8

How many pulp horns are usually present in a typical primary mandibular first molar?
1. 1
2. 2
3. 3
4. 4

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