Test on Surgical Management of Alveolar Clefts

Question 1: Successful eruption of cuspids through a secondary alveolar bone graft is most often achieved when the canine's root formation is complete at the time of graft placement.

A. Ano

B. Ne

Explanation: El Deeb et al. found that successful eruption of cuspids through the graft occurred when root formation of the canine adjacent to the cleft was one-fourth to one-half formed at the time of graft placement. Additionally, Bergland et al. found a higher proportion of graft failures when grafting was done adjacent to fully erupted teeth compared to just before eruption.

Question 2: According to El Deeb et al., successful eruption of cuspids through an alveolar bone graft is observed when the canine's root formation at the time of graft placement is:

A. Completely formed

B. One-fourth to one-half formed

C. Three-fourths formed

D. Not yet initiated

Explanation: El Deeb et al. found that successful eruption of cuspids through the graft occurred when root formation of the canine adjacent to the cleft was one-fourth to one-half formed at the time of graft placement.

Question 3: In designing the GPP flaps, are the incisions on one side of the cleft shifted slightly superiorly to allow the labial flap to cover the upper half of the labial border?

A. Ano

B. Ne

Explanation: In designing the GPP flaps, the incisions on one side of the cleft are shifted slightly superiorly, so that the labial flap covers the upper half of the labial border of the cleft.

Question 4: Distraction osteogenesis (TDO) is currently recommended for patients in primary dentition.

A. Ano

B. Ne

Explanation: TDO is currently reserved for patients past mixed dentition due to the risk to unerupted tooth follicles during the segmental osteotomies.

Question 5: According to the study materials, which of the following describes typical primary bone grafting protocols in infancy?

A. They involve a staged approach.

B. They include stabilization of the maxillary arch with an autogenous bone graft.

C. They primarily focus on vertical transport distraction.

D. They necessitate molding the maxillary arch segments during late childhood.

Explanation: The study materials state that primary bone grafting protocols typically involve a staged approach and include stabilization of the maxillary arch with an autogenous bone graft in infancy. Vertical transport distraction and molding during late childhood are not described as typical for primary bone grafting in infancy within the text.