Knowledge about how @entity2956 ( @entity2956 ) @entity158 @entity1 regulate masticatory function is still unclear. To investigate the effect of experimental jaw @entity925 as well as texture and size of food on mastication, twelve healthy @entity1 (30.6  7.5 years old) participated in this study. Experimental @entity158 was induced by an infusion of 0.5M @entity5542 ( @entity5542 ) with isotonic saline (IS) serving as a control. After the infusions, the Jaw Functional Limitation Scale (JFLS) and @entity158 Catastrophizing Scale (PCS) were filled out. Electromyographic (EMG) activity in the masseter and temporalis muscles, @entity89 and bite force, which was measured by a customized intra-oral device, were recorded simultaneously during mastication of three different types of food. @entity158 was scored continuously on a visual analog scale. The results demonstrated a trend towards a decrease in the impulse of the bite force, as well as a significant decrease in EMG activity of the masseter muscle during the first five masticatory cycles, in the @entity5542 session. Also, @entity5542 induced increased JFLS and PCS scores compared with IS. On the other hand, the results suggested that the applied levels of @entity158 may not change habitual masticatory movements. This study has revealed that a clinically relevant level of @entity158 in the masseter muscle has only minor impact on the performance of mastication, probably due to a lack of exacerbation of @entity158 during function. In future studies of jaw muscle function during painful conditions, it is important to include @entity1 -based reports of functional limitation and emotional distress.

Effect of experimental jaw XXXX on dynamic bite force during mastication.

@entity1 :: ('9606', 'Species') :: ['participants', 'patients', 'patient'] @entity2956 :: ('MESH:D013705', 'Disease') :: ['Temporomandibular Disorder', 'TMD'] @entity925 :: ('MESH:D063806', 'Disease') :: ['muscle pain'] @entity89 :: ('MESH:D007571', 'Disease') :: ['jaw movements'] @entity158 :: ('MESH:D010146', 'Disease') :: ['Pain', 'pain'] @entity5542 :: ('CHEBI:64243', 'Chemical') :: ['monosodium glutamate', 'MSG']
@entity925 :: (MESH:D063806,Disease) :: ['muscle pain']
