Premium
Use of sonographic elastography of the masseter muscles for optimizing massage pressure: a preliminary study
Author(s) -
ARIJI Y.,
KATSUMATA A.,
HIRAIWA Y.,
IZUMI M.,
IIDA Y.,
GOTO M.,
SAKUMA S.,
OGI N.,
KURITA K.,
ARIJI E.
Publication year - 2009
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.2009.01977.x
Subject(s) - massage , medicine , visual analogue scale , rehabilitation , elastography , temporomandibular joint , physical therapy , orthodontics , ultrasound , radiology , pathology , alternative medicine
Summary To examine the stiffness of the masseter muscle using sonographic elastography and to investigate its relationship with the most comfortable massage pressure in the healthy volunteers. In 16 healthy volunteers (10 men and 6 women), the Masseter Stiffness Index (MSI) was measured using EUB‐7000 real‐time tissue elastography. They underwent massages at three kinds of pressures using the Oral Rehabilitation Robot (WAO‐1). A subjective evaluation regarding the comfort of each massage was recorded on the visual analogue scale. Elastography was also performed in two patients with temporomandibular joint dysfunction with the myofascial pain. The mean MSI of the right and left muscles in the healthy volunteers were 0·85 ± 0·44 and 0·74 ± 0·35 respectively. There was no significant difference between the right and left MSI in the healthy volunteers. The MSI was related to massage pressure at which the healthy men felt most comfortable. The two temporomandibular disorder patients had a large laterality in the MSI. The MSI was related to the most comfortable massage pressure in the healthy men. The MSI can be one index for determining the massage pressure.