Primary Dentition hard

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Questions and Answers

What is a characteristic of defective enamel in amelogenesis imperfecta?

It is more resistant to acid attacks than healthy enamel.

It is thicker than normal enamel.

It retains less plaque compared to normal enamel.

It appears thinner than normal enamel. (correct)

Which statement accurately describes the potential consequences of enamel hypoplasia in primary teeth?

It causes permanent changes in the structure of permanent successors.

It leads to earlier tooth wear and increased caries risk. (correct)

It decreases the risk of caries in children.

It primarily affects the molars without impacting incisors.

What factor does NOT influence the appearance of enamel defects?

The stage of development during the disruption.

The duration of the disruption.

The extent of the disruption.

The type of inherited condition present. (correct)

Which of the following is a potential cause of developmental enamel defects?

Inherited and acquired systemic conditions. Signup and view all the answers

Which of the following best describes the implications of disrupted enamel formation?

It creates enamel more susceptible to plaque accumulation and decay. Signup and view all the answers

What is a characteristic of permanent teeth compared to primary teeth?

Permanent teeth are darker in color. Signup and view all the answers

What is enamel hypoplasia?

A defect leading to reduced enamel thickness. Signup and view all the answers

What is one of the primary functions of the primary dentition?

To serve as a space maintainer Signup and view all the answers

Which of the following best describes root dilaceration?

An abnormal curvature of the tooth's root. Signup and view all the answers

How does the size of primary teeth compare to that of permanent teeth?

Primary teeth are smaller in size. Signup and view all the answers

Which of the following correctly identifies a consequence of premature loss of a primary tooth?

Spontaneous drifting of adjacent teeth Signup and view all the answers

Which factor is most likely associated with dental trauma leading to avulsion?

Improper root angulation. Signup and view all the answers

What might be a sign or symptom of teething?

Swollen gums and irritability Signup and view all the answers

Which of the following statements accurately reflects a difference between primary and permanent dentition?

Primary teeth have thinner enamel than permanent teeth. Signup and view all the answers

What may characterize a tooth affected by odontoma?

Irregular root formation. Signup and view all the answers

Which condition is NOT associated with the primary dentition?

Periodontal disease Signup and view all the answers

Which type of enamel opacities can indicate a history of dental trauma?

Dark brown opacities. Signup and view all the answers

What is the primary reason for monitoring the eruption dates of primary teeth?

To identify potential orthodontic issues Signup and view all the answers

What is a potential outcome of trauma affecting the tooth enamel?

Decreased formation of new enamel. Signup and view all the answers

What happens if there's ectopic eruption of a permanent tooth?

It will erupt but be misaligned due to lack of space. Signup and view all the answers

In terms of color, how do primary teeth typically compare to permanent teeth?

Primary teeth tend to be whiter. Signup and view all the answers

Which of the following is a common misconception about primary teeth?

They are just temporary and do not require care. Signup and view all the answers

What impact does root angulation have on dental health?

Poor angulation can lead to increased root caries. Signup and view all the answers

What permanent teeth replace the primary first and second molars?

Permanent first and second premolars Signup and view all the answers

At what age do primary teeth typically begin to exfoliate?

6-13 years Signup and view all the answers

Which characteristic is NOT true of primary teeth compared to permanent teeth?

Primary teeth have mammelons Signup and view all the answers

Which of the following is a common sign of teething?

Flushed cheeks Signup and view all the answers

When do the lower central incisors typically erupt?

6 months Signup and view all the answers

What is a potential consequence of hypoplasia of enamel in a preterm child?

Higher risk of caries Signup and view all the answers

Which primary tooth typically erupts last?

Upper E Signup and view all the answers

What age range is associated with the eruption of primary upper canines?

16-20 months Signup and view all the answers

Which statement about primary teeth is false?

They have thicker enamel than permanent teeth. Signup and view all the answers

What typical behavior might indicate that a baby is teething?

Biting and chewing on objects Signup and view all the answers

What is the consequence of trauma to primary incisors on permanent successors?

Increased incidence of developmental disorders. Signup and view all the answers

What was the outcome related to the age of the child at the time of dental trauma?

Younger children experience more significant damage to permanent teeth. Signup and view all the answers

Which of the following conditions refers to having too many teeth?

Hyperdontia Signup and view all the answers

In the context of primary teeth, what is avulsion?

Removal of teeth from their socket. Signup and view all the answers

What does the term 'intrusion' refer to in dental trauma?

Teeth being forced into the socket. Signup and view all the answers

What percentage of reviewed studies indicated developmental issues in permanent teeth related to prior trauma?

More than 40% showed increased incidence of disorders. Signup and view all the answers

What is the primary focus of the systematic review by Lenzi et al (2014)?

Impact of trauma in primary teeth on permanent successors. Signup and view all the answers

What does hypodontia refer to in dental terms?

Having missing teeth. Signup and view all the answers

How common is it for primary teeth to be reimplanted after avulsion?

Not normally reimplanted. Signup and view all the answers

What was the total number of studies reviewed by Lenzi et al (2014)?

18 studies Signup and view all the answers

Study Notes

Importance of Primary Dentition

Primary dentition is important for:
- Space Maintenance: Guiding permanent teeth into correct positions
- Speech Development: Proper pronunciation requires tongue placement against teeth
- Chewing and Digestion: Breaking down food before swallowing
- Esthetics: Contributing to a child's facial appearance and self-esteem

Primary vs Permanent Dentition

Key Differences:
- Number: Primary (20) vs Permanent (32)
- Size: Primary teeth are smaller than permanent teeth
- Color: Primary teeth are whiter than permanent teeth
- Exfoliation: Primary teeth are lost and replaced by permanent teeth
- Premolars: Primary dentition lacks premolars, they are replaced by permanent premolars
- Enamel: Primary enamel is thinner and more translucent than permanent enamel
- Roots: Primary roots are shorter and narrower than permanent roots
- Pulp: Primary pulp is larger than permanent pulp
- Mamellons: Absent in primary teeth, present in permanent teeth

Eruption Pattern of Primary Dentition

Lower central incisors (A): Erupt at 6 months
Lower lateral incisors (B): Erupt at 7 months
Upper central incisors (A): Erupt at 7.5 months
Upper lateral incisors (B): Erupt at 8-9 months
Upper first molars (D): Erupt between 12-16 months
Lower first molars (D): Erupt between 12-16 months
Upper canines (C): Erupt between 16-20 months
Lower canines (C): Erupt between 16-20 months
Upper second molars (E): Erupt between 2-2.5 years
Lower second molars (E): Erupt between 2-2.5 years

Teething

Common Signs:
- Flushed cheeks
- Red and sore gums
- Increased drooling
- Biting and chewing
- Irritability
- Rubbing ears
Controversial Signs: There is no evidence to support claims of diarrhea or other gastrointestinal issues during teething.

Conditions Affecting Primary Dentition

Hypoplasia: Defects in enamel formation
Amelogenesis Imperfecta: Inherited condition causing enamel defects
Developmental Enamel Defects: Can be caused by damage or disruption during enamel development, increasing risk of early childhood caries and tooth wear.
Trauma: Can cause various issues, including:
- Avulsion: Complete displacement of a tooth
- Intrusion: Tooth pushed into the socket
- Extrusion: Tooth pushed out of the socket
- Lateral Luxation: Tooth displaced sideways
- Root Fracture: Fracture of the tooth root
- Enamel Hypoplasia: Discoloration or pitting of enamel
- Root Dilaceration: Angulation or bend in the tooth root
- Odontoma: Tumor-like growth of dental tissue
Premature Loss: Can cause complications, including:
- Tooth Drifting: Adjacent teeth shifting into the empty space
- Delay of Permanent Eruption: Delayed emergence of the adult tooth
- Ectopic Eruption: Permanent tooth erupting out of position
- Malocclusion: Improper bite alignment
- Crowding: Lack of space for permanent teeth

Trauma in Primary Dentition

Lenzi et al. (2014): Systematic review of 18 studies showed an increased incidence of developmental disorders in permanent teeth following trauma to primary incisors.
Age and Severity: The younger the child at the time of trauma, the more severe and frequent the damage to the permanent tooth.

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Description

Explore the significance of primary dentition in children's development. This quiz covers aspects like space maintenance, speech development, chewing, and the aesthetic impact of primary teeth. Additionally, understand the key differences between primary and permanent dentition.