Fig. 1. Reference line for ultrasonographic scanning and location of ultrasound transducer. (A) Reference line for ultrasonographic scanning. The white dotted lines indicate the upper and lower boundaries of ultrasonographic scanning. The black solid line represents the anterior-posterior boundary of the masseter muscle. (B) Location of Ultrasound transducer.

J Oral Med Pain 2022;47:206-11 https://doi.org/10.14476/jomp.2022.47.4.206

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