The benefits of reduced treatment time and comfort for patients undergoing corrective dental treatment with devices gave rise to the creation and modification of long-standing treatment protocols. One of the protocols used for these purposes is mechanical vibration. Objective: This review aimed to study the effects of mechanical vibration on bone. Methods: Portal Capes (periodicos.capes.gov.br) database was searched using the keywords “vibration” and “bone” with no date limit. Based on the title and abstract, the first 50 relevant studies were retrieved. The measured frequencies were between 4 and 150 Hz. Regarding exposure time and the number of applications, the variation is so wide that the average or median would not represent a realistic sample pattern. Results: In the retrieved studies, 41 reported improvements in bone conditions. Research studies show that a reproducible protocol is being applied in most studies on the effects of mechanical vibration on bone tissue. Conclusion: There is stimulation of bone biology, regardless of species, in the sense of osteogenesis in individuals exposed to high frequency mechanical vibration. To improve research protocols on the effects of vibrations on the body, more studies are needed.

Class II treatment is the leader of seeking for dentofacial correction in offices all around the world due, mainly, to facial esthetics impairment caused by this malocclusion. Mandibular forward repositioned is needed for the majority of this treatment. Jaw Functional Orthopedics (JFO) is a recognized protocol to treat Class II in growing patients. The aim of this investigation is to study the behavior of mandibular length in class II non-growing patients treated with JFO. Distance between Gonion and Mento were measured in lateral teleradiographs at T0 and T1 (from 18 to 21 months of treatment) of non-growing class II patients under treatment with JFO and mandibular supplementary growth was found (P = 0,006). In the sample studied jaw functional orthopedics showed to be efficient to correct the overjet in class II non-growing patients. Mandibular advancement with functional orthopedic appliances promotes a supplementary mandibular growth in non-growing patients. Further studies are necessary for a better comprehension of the subject.