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
What space maintainer is typically used after premature loss of a mandibular second primary molar before the permanent first molar erupts?
Answer: Distal shoe appliance
The distal shoe appliance guides eruption of the unerupted permanent first molar when the second primary molar is lost early.
Which sealant placement step is most critical for long-term retention?
Answer: Adequate acid etching and isolation
Thorough acid etching and strict moisture control are the most critical factors for sealant retention and effectiveness.
Which cephalometric landmark is located at the most anterior point of the mandibular symphysis?
Answer: Pogonion
Pogonion (Pog) is defined as the most anterior point on the bony chin in the midsagittal plane.
Thumb sucking that persists beyond which age is most likely to cause permanent dental changes?
Answer: 6 years
Thumb sucking persisting past age 6, when permanent teeth begin erupting, is associated with lasting anterior open bite and proclination.
Which stainless steel crown preparation requirement differentiates it from conventional crown prep?
Answer: Circumferential subgingival reduction of approximately 1 mm
SSC preparation requires circumferential subgingival reduction of about 1 mm to allow the crown margin to seat below the gingival crest.
What is the most common supernumerary tooth found in the permanent dentition?
Answer: Mesiodens
The mesiodens is the most common supernumerary tooth, located in the midline of the maxillary anterior region.