Summary Oral function of the patient improves and muscle function becomes better after prosthetic treatment. Various phenomena during this process have now been clear through basic experiments. Weakened muscle tissue before dental treatment is induced by mechanical stress after the therapy and this stimulation results in expression of various genes. Then various cascades are switched on and muscle function recovers in accordance with mechanism of muscle hypertrophy. Thus involvement of the muscle stem cells, satellite cell and muscle side population (SP) cell has been come into knowledge for muscle hypertrophy. Again alterations in characteristics of muscle fibers associated with changes in function of oral field makes clear existence of remodeling of the muscle tissue, which carries the functional role. Based on results of these researches, dental treatment is proved to give rise to anti-aging for oral function.