Objectives. A primary goal of pain management for muscle-related pain is to reduce masticatory muscle activity. This study aimed to investigate masticatory muscle group activity and heart rate variability change when the tongue was placed on the palate or the floor of the mouth in a healthy pain-free sample.
Study design. Participants were 23 females and 18 males with a mean age of 19.6 years (standard deviation 1.5). Muscle activity was measured using surface electromyography and heart period were measured using electrocardiography. The experimental protocol consisted of 3 periods: baseline, tongue placement on the floor of mouth, and tongue placement on palate.
Results. Results indicated significantly more activity in the temporalis and suprahyoid muscle regions as well as a significant reduction in heart rate variability when the tongue was positioned on the palate compared with tongue position on the floor of the mouth.
Conclusions. Instructions to place the tongue on the roof of the mouth are not instructions that will promote reduced physiological functioning (i.e., relaxation) but rather promote small, but potentially important increases in overall activity as indexed by muscle tone and cardiac function. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009;108:881-888)
Study design. Participants were 23 females and 18 males with a mean age of 19.6 years (standard deviation 1.5). Muscle activity was measured using surface electromyography and heart period were measured using electrocardiography. The experimental protocol consisted of 3 periods: baseline, tongue placement on the floor of mouth, and tongue placement on palate.
Results. Results indicated significantly more activity in the temporalis and suprahyoid muscle regions as well as a significant reduction in heart rate variability when the tongue was positioned on the palate compared with tongue position on the floor of the mouth.
paper2:
Afterwards, subjects were randomly assigned to conditions requiring them to position the tongue either ”against the anterior palate“ or ”on the floor of the mouth, making sure the tip does not press against any part of the mouth.“ The results indicated that right temporalis activity was higher when the tongue was positioned against the roof of the mouth than when it was either at baseline or resting on the floor of the mouth (P < .03). A similar pattern of results was observed for the suprahyoid muscle group (P < .01).
The 28 bones of the human skull never fuse together in a healthy adult, and a restoration of correct muscle function will result in the slow but steady restoration of proper skull form.