Podcast
Questions and Answers
What is a characteristic of defective enamel in amelogenesis imperfecta?
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?
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?
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?
Which of the following is a potential cause of developmental enamel defects?
Which of the following best describes the implications of disrupted enamel formation?
Which of the following best describes the implications of disrupted enamel formation?
What is a characteristic of permanent teeth compared to primary teeth?
What is a characteristic of permanent teeth compared to primary teeth?
What is enamel hypoplasia?
What is enamel hypoplasia?
What is one of the primary functions of the primary dentition?
What is one of the primary functions of the primary dentition?
Which of the following best describes root dilaceration?
Which of the following best describes root dilaceration?
How does the size of primary teeth compare to that of permanent teeth?
How does the size of primary teeth compare to that of permanent teeth?
Which of the following correctly identifies a consequence of premature loss of a primary tooth?
Which of the following correctly identifies a consequence of premature loss of a primary tooth?
Which factor is most likely associated with dental trauma leading to avulsion?
Which factor is most likely associated with dental trauma leading to avulsion?
What might be a sign or symptom of teething?
What might be a sign or symptom of teething?
Which of the following statements accurately reflects a difference between primary and permanent dentition?
Which of the following statements accurately reflects a difference between primary and permanent dentition?
What may characterize a tooth affected by odontoma?
What may characterize a tooth affected by odontoma?
Which condition is NOT associated with the primary dentition?
Which condition is NOT associated with the primary dentition?
Which type of enamel opacities can indicate a history of dental trauma?
Which type of enamel opacities can indicate a history of dental trauma?
What is the primary reason for monitoring the eruption dates of primary teeth?
What is the primary reason for monitoring the eruption dates of primary teeth?
What is a potential outcome of trauma affecting the tooth enamel?
What is a potential outcome of trauma affecting the tooth enamel?
What happens if there's ectopic eruption of a permanent tooth?
What happens if there's ectopic eruption of a permanent tooth?
In terms of color, how do primary teeth typically compare to permanent teeth?
In terms of color, how do primary teeth typically compare to permanent teeth?
Which of the following is a common misconception about primary teeth?
Which of the following is a common misconception about primary teeth?
What impact does root angulation have on dental health?
What impact does root angulation have on dental health?
What permanent teeth replace the primary first and second molars?
What permanent teeth replace the primary first and second molars?
At what age do primary teeth typically begin to exfoliate?
At what age do primary teeth typically begin to exfoliate?
Which characteristic is NOT true of primary teeth compared to permanent teeth?
Which characteristic is NOT true of primary teeth compared to permanent teeth?
Which of the following is a common sign of teething?
Which of the following is a common sign of teething?
When do the lower central incisors typically erupt?
When do the lower central incisors typically erupt?
What is a potential consequence of hypoplasia of enamel in a preterm child?
What is a potential consequence of hypoplasia of enamel in a preterm child?
Which primary tooth typically erupts last?
Which primary tooth typically erupts last?
What age range is associated with the eruption of primary upper canines?
What age range is associated with the eruption of primary upper canines?
Which statement about primary teeth is false?
Which statement about primary teeth is false?
What typical behavior might indicate that a baby is teething?
What typical behavior might indicate that a baby is teething?
What is the consequence of trauma to primary incisors on permanent successors?
What is the consequence of trauma to primary incisors on permanent successors?
What was the outcome related to the age of the child at the time of dental trauma?
What was the outcome related to the age of the child at the time of dental trauma?
Which of the following conditions refers to having too many teeth?
Which of the following conditions refers to having too many teeth?
In the context of primary teeth, what is avulsion?
In the context of primary teeth, what is avulsion?
What does the term 'intrusion' refer to in dental trauma?
What does the term 'intrusion' refer to in dental trauma?
What percentage of reviewed studies indicated developmental issues in permanent teeth related to prior trauma?
What percentage of reviewed studies indicated developmental issues in permanent teeth related to prior trauma?
What is the primary focus of the systematic review by Lenzi et al (2014)?
What is the primary focus of the systematic review by Lenzi et al (2014)?
What does hypodontia refer to in dental terms?
What does hypodontia refer to in dental terms?
How common is it for primary teeth to be reimplanted after avulsion?
How common is it for primary teeth to be reimplanted after avulsion?
What was the total number of studies reviewed by Lenzi et al (2014)?
What was the total number of studies reviewed by Lenzi et al (2014)?
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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
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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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