Biomechanical Relationship Between Trunk Flexion and Mouth Opening: Pilot Study

"If the subject belonged to the Treatment group, he was instructed to self-stretch the masticatory muscle.~This stretch consisted of introducing three knuckles of the non-dominant hand between the incisors for two minutes while sitting."

The control group was asked to introduce only two knuckles in the oral cavity and perform a mandibular occlusion, an intervention that serves as a simulated stretch in said group.