Primary Dentition medium

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Questions and Answers

What is a characteristic of enamel defects caused by amelogenesis imperfecta?

The enamel defects are usually only cosmetic.

The enamel is defective and thinner than normal. (correct)

The enamel is more resistant to acid attack.

The enamel appears thicker and less plaque-retentive.

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

Inherited and acquired systemic conditions. (correct)

Poor oral hygiene leading to plaque buildup.

Excessive fluoride exposure during childhood.

Regular consumption of acidic foods.

How do developmental enamel defects typically affect primary teeth?

They primarily cause discoloration without structural issues.

They lead to complete tooth regeneration.

They enhance the overall strength of the teeth.

They can increase the risk of early childhood caries and tooth wear. (correct)

What factors influence the appearance of enamel defects?

The stage of development and duration of disruption. Signup and view all the answers

Which statement about the effect of enamel hypoplasia is false?

It makes enamel thicker and more durable. Signup and view all the answers

What is a characteristic of primary teeth in terms of color?

They are usually whiter than permanent teeth. Signup and view all the answers

Which of the following describes a potential dental issue related to avulsion?

Complete displacement of the tooth from its socket. Signup and view all the answers

Which of the following terms refers to an abnormal curvature of a tooth root?

Dilaceration Signup and view all the answers

What dental condition is characterized by underdevelopment of enamel surfaces?

Hypoplasia Signup and view all the answers

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

They are smaller than permanent teeth. Signup and view all the answers

What type of discoloration is commonly seen in dental hypoplasia?

Yellow or brown opacity Signup and view all the answers

Which dental formation is often associated with incorrect root formation?

Odontoma Signup and view all the answers

What is typically the primary cause of dental avulsion?

Trauma to the tooth Signup and view all the answers

What is the typical appearance of deciduous or primary teeth compared to permanent teeth?

Lighter and smaller in size Signup and view all the answers

What describes the impact of dental trauma on permanent teeth?

Can cause root dilaceration. Signup and view all the answers

At what age do primary teeth typically begin to exfoliate and are replaced by permanent teeth?

6-13 years Signup and view all the answers

Which primary teeth are replaced by permanent premolars?

Primary first and second molars Signup and view all the answers

What is a sign of teething in infants?

Dribbling more than usual Signup and view all the answers

Which of the following is NOT a characteristic of primary teeth?

Presence of mammelons Signup and view all the answers

Which of the following is a condition that can affect the primary dentition?

Hypoplasia of enamel Signup and view all the answers

What age do the lower primary central incisors typically erupt?

6 months Signup and view all the answers

Which primary teeth erupt between 12 to 16 months of age?

Upper D and Lower D Signup and view all the answers

Which symptom is commonly believed to be associated with teething but lacks evidence?

Diarrhea Signup and view all the answers

Which factor increases the risk of carries in children?

Hypoplasia of enamel Signup and view all the answers

What is the general appearance of the gums during teething?

Red and sore Signup and view all the answers

What is one significant function of primary dentition?

It helps maintain space for the eruption of permanent teeth. Signup and view all the answers

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

Their early loss does not affect future dental health. Signup and view all the answers

What is one potential consequence of premature loss of a primary tooth?

Increased likelihood of cavity formation in adjacent teeth. Signup and view all the answers

What is NOT a sign of teething in children?

Fever exceeding 101°F. Signup and view all the answers

Which factor is important in distinguishing primary teeth from permanent teeth?

Primary teeth have a different eruption timeline. Signup and view all the answers

Why is the primary dentition particularly at risk for caries?

They have thinner enamel and smaller crowns. Signup and view all the answers

What is the result of tooth drift in the primary dentition?

Crowding of permanent teeth. Signup and view all the answers

Which of the following is NOT a condition associated with primary dentition?

Extrusion of permanent molars. Signup and view all the answers

What is hypodontia?

Missing teeth Signup and view all the answers

What condition is characterized by having too many teeth?

Hyperdontia Signup and view all the answers

What did the systematic review by Lenzi et al. (2014) principally focus on?

Impact of trauma on primary teeth Signup and view all the answers

What is the association of trauma in primary incisors with permanent teeth?

Increased incidence of developmental disorders Signup and view all the answers

At what age does trauma to primary teeth appear to have a more severe impact on permanent teeth?

Younger children Signup and view all the answers

What is avulsion in the context of primary teeth?

Primary teeth that are not typically reimplanted Signup and view all the answers

What type of trauma involves knocking a tooth into its socket?

Intrusion Signup and view all the answers

How many studies were reviewed in Lenzi et al. (2014)?

18 studies Signup and view all the answers

What is oligodontia?

Condition of having fewer than six teeth Signup and view all the answers

Which statement is true regarding trauma during the formation of permanent teeth?

Permanent teeth may develop disorders due to trauma Signup and view all the answers

Study Notes

Importance of the Primary Dentition

Primary teeth are important for proper space maintenance for permanent teeth.
Premature loss of primary teeth can lead to:
- Tooth drifting
- Delayed eruption of permanent teeth
- Ectopic eruption of permanent teeth
- Malocclusion
- Crowding
Retention of primary teeth can result in impacted permanent teeth, hypodontia (missing teeth), or hyperdontia (too many teeth).

Trauma & Primary Teeth

Trauma to primary teeth can cause sequelae in permanent successors.
Children who experience trauma to their primary incisors have an increased incidence of developmental disorders in permanent teeth.
The younger the child at the time of trauma, the more likely the damage is to affect the permanent teeth.

Differences Between Primary & Permanent Dentition

Number: Primary dentition has 20 teeth, while permanent dentition has 32 teeth.
Size: Primary teeth are smaller than permanent teeth.
Color: Primary teeth appear whiter due to thinner enamel.
Shape: Primary teeth have a more rounded shape, while permanent teeth are more pointed.
Premolars: Primary dentition doesn't have premolars, while permanent dentition has 8 premolars.
Exfoliation: Primary teeth exfoliate and are replaced by permanent teeth between 6-13 years.
Enamel: Primary teeth have thinner enamel which is more translucent than permanent enamel.
Roots: Primary teeth have more slender roots than permanent teeth.
Pulp: Primary teeth pulp chambers are larger than those in permanent teeth.
Mamellons: Primary incisors don’t have mammelons - the 3 small bumps on the biting surface of permanent incisors.

Eruption Dates

Primary teeth have a specific eruption pattern and timeline.
Lower central incisors erupt at 6 months.
Lower lateral incisors erupt at 7 months.
Upper central incisors erupt at 7.5 months.
Upper lateral incisors erupt between 8-9 months.
Upper first molars erupt at 12-16 months.
Lower first molars erupt at 12-16 months.
Upper canines erupt at 16-20 months.
Lower canines erupt at 16-20 months.
Upper second molars erupt at 2-2.5 years.
Lower second molars erupt at 2-2.5 years.

Teething

Teething symptoms include:
- Flushed cheeks
- Red, sore gums where the tooth is erupting
- Increased drooling
- Biting and chewing on objects
- Irritability
- Rubbing the ear

Conditions Affecting Primary Teeth

Hypoplasia of enamel: A condition that causes thinner enamel.
Amelogenesis imperfecta: A genetic condition that affects enamel development.
Developmental enamel defects: Can manifest as enamel hypoplasia or opacities caused by damage or disruption to developing enamel.
Early childhood caries: A condition often associated with developmental enamel defects and can lead to tooth decay.

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Description

This quiz covers the significance of primary teeth in dental health, including their role in space maintenance for permanent teeth. It also addresses the consequences of trauma to primary teeth and compares primary and permanent dentition. Understanding this topic is crucial for preventing dental issues in children.