Podcast
Questions and Answers
What is a major function of primary teeth?
What is a major function of primary teeth?
- Providing permanent teeth stability
- Increasing bite force
- Affecting permanent teeth color
- Maintaining space for permanent teeth (correct)
Which of the following is a sign of teething?
Which of the following is a sign of teething?
- Frequent coughing
- Increased appetite
- Irritability (correct)
- Nasal congestion
What can result from the premature loss of a primary tooth?
What can result from the premature loss of a primary tooth?
- Teeth continuing to grown faster
- Maintaining the alignment of other teeth
- Permanent teeth erupting early
- Crowding of teeth due to caries (correct)
What describes the morphology of primary dentition?
What describes the morphology of primary dentition?
Which of the following describes an effect of space maintenance in primary dentition?
Which of the following describes an effect of space maintenance in primary dentition?
What condition may occur as a result of ectopic eruption of a permanent tooth?
What condition may occur as a result of ectopic eruption of a permanent tooth?
What is a key difference between primary and permanent dentition?
What is a key difference between primary and permanent dentition?
What role does primary dentition play in speech development?
What role does primary dentition play in speech development?
At what age do primary teeth typically begin to exfoliate and are replaced by permanent teeth?
At what age do primary teeth typically begin to exfoliate and are replaced by permanent teeth?
Which primary teeth are replaced by permanent first and second premolars?
Which primary teeth are replaced by permanent first and second premolars?
Which of the following is NOT a characteristic of primary teeth?
Which of the following is NOT a characteristic of primary teeth?
What is the upper limit age for the eruption of lower canine teeth?
What is the upper limit age for the eruption of lower canine teeth?
Which symptom is commonly associated with teething?
Which symptom is commonly associated with teething?
What is a notable difference between primary and permanent teeth regarding their pulp chamber?
What is a notable difference between primary and permanent teeth regarding their pulp chamber?
At what age do primary upper molars (Upper D) typically erupt?
At what age do primary upper molars (Upper D) typically erupt?
What describes the shade of primary teeth compared to permanent teeth?
What describes the shade of primary teeth compared to permanent teeth?
What are common appearances of developmental enamel defects?
What are common appearances of developmental enamel defects?
What causes enamel defects in preterm children?
What causes enamel defects in preterm children?
Which of the following increases the risk of early childhood caries?
Which of the following increases the risk of early childhood caries?
What determines the appearance of a developmental enamel defect?
What determines the appearance of a developmental enamel defect?
What is a characteristic of amelogenesis imperfecta?
What is a characteristic of amelogenesis imperfecta?
What can be a result of enamel disruption during development?
What can be a result of enamel disruption during development?
Which of the following is NOT a cause of developmental enamel defects?
Which of the following is NOT a cause of developmental enamel defects?
Why does defective enamel have increased risk for caries?
Why does defective enamel have increased risk for caries?
What is indicated by studies regarding trauma to primary incisors and permanent teeth?
What is indicated by studies regarding trauma to primary incisors and permanent teeth?
How does the age of a child at the time of dental trauma relate to the impact on permanent teeth?
How does the age of a child at the time of dental trauma relate to the impact on permanent teeth?
Which dental condition is associated with trauma to primary teeth?
Which dental condition is associated with trauma to primary teeth?
What occurs more frequently following dental trauma in primary teeth?
What occurs more frequently following dental trauma in primary teeth?
What anatomical difference exists between primary and permanent dentition?
What anatomical difference exists between primary and permanent dentition?
Which of the following is a potential consequence of not reimplanting avulsed primary teeth?
Which of the following is a potential consequence of not reimplanting avulsed primary teeth?
What is one of the common sequelae observed in permanent teeth following trauma to primary teeth?
What is one of the common sequelae observed in permanent teeth following trauma to primary teeth?
What factor does not influence the severity of damage to permanent teeth after trauma to primary teeth?
What factor does not influence the severity of damage to permanent teeth after trauma to primary teeth?
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Study Notes
Importance of Primary Dentition
- Primary teeth play a crucial role in space maintenance, eating and chewing, speech development, aesthetics, and oral hygiene habits.
- Premature loss of a primary tooth can lead to the drifting of adjacent teeth, delayed eruption of the permanent successor, ectopic eruption of the permanent tooth, and malocclusion.
- Retention of primary teeth can occur if there is no permanent predecessor present.
- Trauma to primary teeth can cause developmental disorders in permanent successors, with the severity of the damage increasing with the child's age at the time of the trauma.
- Avulsion, the complete displacement of a tooth, can lead to root resorption, enamel hypoplasia, root angulation, and odontoma-like malformations in permanent teeth.
Differences Between Primary and Permanent Dentition
- There are fewer primary teeth than permanent, with primary teeth being smaller and whiter.
- Primary teeth lack premolars and exfoliate to be replaced by permanent teeth between 6 to 13 years old.
- Permanent teeth have mammelons, present on the incisal edges, absent in primary teeth.
- Primary teeth have thinner enamel, larger pulp chambers, and thicker dentine compared to permanent teeth.
Eruption Dates
- The first primary tooth to erupt is the lower central incisor (A) at 6 months.
- The last primary tooth to erupt is the lower second molar (E) at 2-2.5 years.
Teething
- Symptoms of teething include flushed cheeks, red and sore gums, increased drooling, biting and chewing on objects, irritability, and rubbing the ear.
- It's important to note that there is no evidence to support claims that teething causes diarrhea or other unrelated symptoms.
Conditions Affecting Primary Dentition
- Hypoplasia of enamel can occur due to a lack of oxygen, abnormal enamel formation, or amelogenesis imperfecta, all of which can increase the risk of caries due to pits, fissures, and exposed dentine.
- Developmental enamel defects can present as enamel hypoplasia or opacities, caused by damage to the developing enamel. These defects increase the risk of early childhood caries and toothwear.
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