Pediatric Dentistry and Orthodontics Flashcards
6 cards from real NDEB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Pediatric Dentistry and Orthodontics flashcards as text
Which orthodontic appliance applies continuous light force to correct Class II malocclusion in growing patients?
Answer: Herbst appliance
The Herbst appliance is a fixed functional appliance that continuously repositions the mandible forward to correct Class II malocclusion in growing patients.
Which fluoride concentration is recommended for high-caries-risk children under 6 years of age in the US?
Answer: 1000 ppm
A 1000 ppm fluoride toothpaste used in a smear (rice-grain) amount is recommended for high-risk children under 6 to balance efficacy and safety.
What is the most common congenitally missing permanent tooth (excluding third molars)?
Answer: Mandibular second premolar
The mandibular second premolar is the most frequently congenitally absent permanent tooth when third molars are excluded.
Which instrument is used to measure arch width for orthodontic analysis?
Answer: Boley gauge
A Boley gauge (digital or vernier caliper) is used to measure inter-canine and inter-molar arch widths in orthodontic model analysis.
In a child with Turner tooth (enamel hypoplasia of a permanent tooth), what is the most likely cause?
Answer: Periapical infection of the overlying primary tooth
Turner tooth results from periapical infection or trauma to the primary predecessor tooth disrupting enamel formation of the developing permanent tooth.
Which radiographic projection provides the best view of the entire primary dentition and developing permanent teeth in a young child?
Answer: Panoramic radiograph
A panoramic radiograph captures the full dentition, developing teeth, and jaw structures in a single image with minimal radiation, making it ideal for pediatric surveys.