Primary Deciduous Teeth Question And Answers

The Primary Deciduous Teeth

Question 1. Describe in detail the difference between deciduous (primary) dentition and permanent dentition.
Answer:

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Question 2. Write about the Primary Maxillary Central Incisor.
Answer:

Primary Maxillary Central Incisor Aspects:

• Crown.
  • Greater mesiodistal diameter than the cervicofacial length.
• Labial surface – smooth.
  • Incisal edge- straight.
  • Root length greater than crown length.

Deciduous vs permanent teeth question and answer

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Primary Maxillary Central Incisor Lingual aspect:

• Marginal ridges – well developed.
• Cingulum
• Well developed.
• Extends up to the incisal ridge.
• Divides into mesial and distal fossa.
• Root narrows lingually.
• Cross-section- triangular in shape.

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Primary Maxillary Central Incisor Mesial and Distal Aspects:

• Wider crown at cervical third.
• The curvature of the cervical third.
• The curvature of the cervical line is distinct and curves towards the incisal edge.
• Cervical curvature distally is less than the curvature medially.
• Roots appear blunter.
• The mesial surface of the root has concavity and the distal surface is convex.

Primary Maxillary Central Incisal Aspects:

• Straight incisal edge.
• The labial surface of it is broader and smoother.
• Proximal surfaces are broad.

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