Genetic Risk of Talon Cusp: Talon Cusp in Five Siblings
Table 1
Comparison between measurements of talon cusps of the five cases and Hattab et al.’s classification for each tubercle.
Tooth type
Case number
Case 1
Case 2
Case 3
Case 4
Case 5
Right central incisor 11
Type 1 (talon)
Type 1 (talon)
Type 1 (talon)
Type 2 (semitalon)
No clinical examination (out of reach)
Right lateral incisor 12
Type 2 (semitalon)
Type 2 (semitalon)
Type 2 (semitalon)
Type 2 (semitalon)
No clinical examination (out of reach)
Right canine 13
Type 2 (semitalon)
Enlarged bifid cingulum Type 3 (trace talon)
Type 2 (semitalon)
Enlarged cingulum Type 3 (trace talon)
No clinical examination (out of reach)
Left central incisor 21
Type 1 (talon)
Type 1 (talon)
Type 1 (talon)
Type 2 (semitalon)
No clinical examination (out of reach)
Left lateral incisor 22
Type 2 (semitalon)
Type 2 (semitalon)
Type 2 (semitalon)
Type 2 (semitalon)
No clinical examination (out of reach)
Left canine 23
Type 2 (semitalon)
Enlarged bifid cingulum Type 3 (trace talon)
Type 2 (semitalon)
Type 2 (semitalon)
No clinical examination (out of reach)
MD: the mesiodistal dimension of the tubercle (in millimeters); IG: the incisogingival dimension of the tubercle (in millimeters); ??: the dimension could not be measured due to caries destruction.
