Table 1.

Classifications of the extension and insertion patterns of the buccinator muscle fibres into the terminal portion of the parotid duct

Classification	Origin and location of muscle fibres into the parotid duct	No. of specimens (%)	Total (%)
Type I	From A and P	4 (18.3%)	10 (45.5%)
	From A, P, and S	5 (22.7%)
	From A, P, and I	1 (4.5%)
Type II	From A only	0 (0%)	7 (31.8%)
	From A and S	6 (27.3%)
	From A and I	1 (4.5%)
Type III	From P only	0 (0%)	5 (22.7%)
	From P and S	1 (4.5%)
	From P and I	1 (4.5%)
	From P, S, and I	3 (13.7%)
Total		22 (100%)

A, anterior aspect (in front) of the parotid duct; P, posterior aspect of (behind) the parotid duct; S, superior aspect of the parotid duct; I, inferior aspect of the parotid duct.