Table 3. Mean values and standard deviations of 3 angle measurements at each region (unit: degree).

	Lingual frenum	Lateral incisor	First premolar	First molar	Ant. border of retromolar pad
F	29.87 ± 8.22	31.46 ± 10.70	43.50 ± 9.74	64.08 ± 9.34	73.96 ± 5.28
G	96.04 ± 18.05	102.51 ± 16.26	105.83 ± 12.06	110.68 ± 15.17	117.75 ± 7.98
H	113.83 ± 14.86	107.90 ± 11.38	117.05 ± 10.26	131.49 ± 10.10	136.25 ± 9.44