Читать книгу Temporomandibular Disorders - Robin J. M. Gray - Страница 69

This muscle can be palpated bimanually by placing one finger intraorally and another externally on the cheek. The origin of the masseter muscle along the anterior two‐thirds of the zygomatic arch is the area frequently found to be tender (Figure 3.8a). There is often a palpable difference between one masseter and the other in that, on the affected side, the muscle tends to be ‘bunched up’ and quite easy to palpate, whereas on the unaffected side the muscle has a soft rubbery consistency and the margin is less easy to define. The insertion of the masseter on the outer aspect of the angle of the mandible should be palpated (Figure 3.8b), but this is less frequently found to be tender.

Figure 3.8 (a) Palpation of the origin and (b) insertion of the masseter.

(M. Ziad Al‐Ani, Robin J.M. Gray.)