Cleft

Question 1

Clefts arise from

Answer 1

Failure in growth or fusion during craniofacial development

Question 2

Cleft lip is always

Answer 2

Anterior

Question 3

Cleft palate may be

Answer 3

Ant or post or both

Question 4

Class I cleft lip

Answer 4

Unilateral notching of the vermillion border, not extending into lip

Question 5

Class II cleft lip

Answer 5

UL cleft extending into the lip

Incomplete

Question 6

Class III cleft lip

Answer 6

UL cleft involving the floor of the nose (complete

Question 7

Class IV cleft lip

Answer 7

Any bilateral cleft of the lip

Question 8

Class I cleft palate

Answer 8

Isolated soft palate cleft only

Question 9

Class II cleft palate

Answer 9

UL soft and hard palate cleft

Question 10

Class III cleft palate

Answer 10

UL cleft involving soft/hard palate through the alveolus usually involves lip too

Question 11

Class IV cleft palate

Answer 11

Same as Class II but bilateral

Question 12

Cleft lip partial or complete lack

Answer 12

Of fusion of the maxillary prominence with the medial nasal prominence

• unilateral
• bilateral

Question 13

Cleft palate lack of fusion

Answer 13

Of palatine shelves

Smallness of shelves
Failure of shelves to elevate
Inhibitoni of shelf fusion
Failure of tongue dropping

Question 14

Etiology of CLP

Answer 14

Multifactoral
Environmental
-smoking, diabetes, anticonvulsant, teratogens
Genetic

Question 15

Syndromic cleft lip +/- Palalte chromosomal anomalies

Answer 15

Trisomy 13, 18, 21, 22q11 deletion syndrome

Question 16

Syndromic cleft lip +/- Palalte inherited syndromes

Answer 16

Sticklers
Treacher Collins
Van der would’ve

Question 17

Syndromic cleft lip +/- Palalte noninhertied syndrome

Answer 17

Pierre robin sequence

Question 18

1/3 of CLP cases are assocaited

Answer 18

With syndromes

Over 400

Question 19

CL more frequent in

Answer 19

Males

Question 20

Lip adhesion surgery

Answer 20

Reduces tension on final scar after definitive repair

Additional surgery

Question 21

Alveolar bone grafting

Answer 21

Clefts through alveolar ridge may have residual oronasal fistula and bony defect through the ridge nose and palate

This will be corrected with secondary alveolar bone graft later

Question 22

Children with CLP high

Answer 22

Risk for caries

Higher in max anterior regions

Higher in bilateral clefting

Question 23

Children with CLP have poor

Answer 23

OH

Question 24

Children with CLP have

Answer 24

PD that progresses faster