Which point lies approximately 1 fingerbreadth anterior and superior to the angle of the jaw at the prominence of the masseter muscle?

• A. St 4
• B. St 7
• C. St 6
• D. St 8

Answer: (C)

Think of locating points by clear surface landmarks. The described site sits on the bulge of the masseter muscle, about one fingerbreadth in front of and above the angle of the mandible. This is Jiache, the St point at the prominence of the masseter (St6). It’s the classic reference for the masseter region and jaw-area issues, which is why it’s the best fit for the description.

Other St points are located in different facial regions—near the mouth corner or along the jaw/temple area—so they don’t match the masseter prominence description.