DMF- Pedia Part 2 (Nolla's until teeth developmental lobes)

Nolla's stage of tooth development and give their description (11)

- Stage 0: absense of crypt

- Stage 1: presence of crypt

- Stage 2: initial calcification

- Stage 3: 1/3 of crown completed

- Stage 4: 2/3 of crown completed

- Stage 5: crown almost completed

- Stage 6: crown completed; root formation begins

- Stage 7: 1/3 of root completed

- Stage 8: 2/3 of root completed

- Stage 9: root almost completed;open apex

- Stage 10: root completed; closed apex

Board Question: What happens when there is early extraction of deciduous teeth?

Delayed eruption of permanent teeth

Board Question: At what Nolla's stage does eruption start?

Stage 6

Board Question: At what Nolla's stage is the tooth clinically evident

Stage 8

The only anterior teeth that have a greater width than height

Primary max CI

Board Question: Which primary molar crown most resembles the crown of a permanent 1st PM

Primary Max Right 1st Molar

Board Question: Primary mandibular 2nd molar resembles what permanent tooth

Permanent Mandibular 1st molar

Board Question: Primary max 2nd molar resembles what permanent tooth

Max 1st molar

Board Question: Peg shape laterals arrise from how many lobes?

2 lobes

Board Question: What is the rule of 4 for incisors

- Loss of incisors before age 4, eruption is delayed. Loss of incisors after age of 4, eruption is hastened

Board Question: What is the Rule of 7 for primary molars

- Loss of primary molars before age 7, delayed eruption. Loss or primary molars after age 7, hastened eruption

What primary tooth doesnt resemble any other teeth

Primary mandibular 1st molar

Primary mandibular 1st premolar is the tooth with the most prominent mesiobuccal cervical ridge giving it a __ appearance

Pot belly appearance

Primary Mandibular 1st molar has __ and __ distal surface and __ and __ mesial surface

Distal: Rounded and short

Mesiak: flat and long

Board Question: Only anterior teeth that have greater width than height?

Primary max CI

Board Question: Largeest primary CI

Mand 2nd molar

Board Question: largest permanent tooth

Max 1st molar

Board Question: smallest primary tooth?

Mand lateral incisor

Board Question: smallest permanent tooth?

Mand CI

Board Question: largest PM?

Max 1st PM

Board Question: What do we call the 5th cusp of Max 1st Molar

Cusp of Carabelli

Board Question: What morphological pecularity can a dentist recognize with deciduous molars?

Bell shaped crowns

Board Question: __ lesion is more common in primary teeth

Bifurcation lesion

Board Question: __ lesion is more common in permanent teeth

Periapical

Board Question: Mamelons seen in adults are due to what malocclusion?

Anterior Open Bite

Board Question: Last primary tooth to be replaced? At what age?

Max canines

11-12 years old

Board Question: 1st primary tooth to erupt

Mandibular 1st molars

Board Question: 1st succedaneous tooth to erupt

Mandibular CI

Permanent teeth that replace primary teeth

succedaneous teeth

Succedaneous teeth? (5)

CI

LI

Canines

1st PM

2nd PM

Non-succedaneous teeth (3)

1st, 2nd and 3rd permanent molars

Permanent or Primary Teeth: Whiter crowns

Primary

Permanent or Primary Teeth: Shallow anatomy

Primary

Permanent or Primary Teeth: Enamel rods in gingival 3rd slope gingivally

Permanent

Permanent or Primary Teeth: Exaggerated buccal and linguak cervical ridges

Primary

Permanent or Primary Teeth: Longer, slender abd divergent roots with little or no trunk

Primary

Primary teeth have __ pulp cavities and __ pulp horns

Larger

Pointed

Permanent or Primary Teeth: Increase # of accessory canals in the pulpal floor

Primary

Primary teeth have uniform enamel thickness of __ mm occlusally

1 mm

All anterior teeth have how many lobes?

4 lobes

2nd molars have how many lobes

4 lobes

First molars have how many lobes

5 lobes

All premolars have 4 lobes, except __ that have __ lobes

Mandibular 2nd PM

5 lobes

Lobes in Anterior Teeth are presented as __ and __ which are separated by __

Mamelons and Cingulum

Developmental depression

Lobes in Posterior Teeth are presented as __ which are separated by __

Cusps

Developmental grooves

Primary center of ossification of the tooth

Lobes

The __ cusp ridge of primary canines is longer than __ cusp ridge

Mesial

Distal

The __ cusp ridge of permanent canines is shorter than __ cusp ridge

Mesial

Distal

Primary canines have developed cusps and crown appears __ and __

Wide

Sharp