Comparative study of the treatment effects of bionator and bite jumping appliances on Class II malocclusions

Effects of Bionator Devices on Orofacial Muscle Strength in the Treatment of Class II Malocclusion in Developmental Phase: Systematic Review

“…Reference [11] gave different results where the treatment of class II malocclusion at the prepubertal stage had more effect on the dentoalveolar than skeletal aspects, where there was a significant increase in the sagittal intermaxillary relationship between SNA and A-Nprep which was in line with [16]. This is in line with the growth process of the jaw and changes in the soft tissue profile with age, where mandibular growth was found to be 2 times greater at the age of 14-16 years, namely puberty or growth spurt [11], [16], [25], [38], [45].…”

“…Reference [35] in a systematic review found that the mandibles significant response to treatment with functional appliances was at the peak of puberty, and the response was skeletal changes. In contrast to [31] compared the mandibular response to functional treatment to be higher at the end of puberty compared to treatment starting in early puberty [25], [28], [35]. The increase in length of the mandible also affects the convexity of the facial profile which is characteristic of Class II malocclusion.…”

“…Functional appliances can produce orthopedic changes, dentoalveolar changes and muscular changes [6], [24]. Orthopedic changes that occur are accelerating the growth of the condyle region, resulting in remodeling of the glenoid fossa and changing the direction of jaw growth [7], [25]. Dentoalveolar changes will produce changes in the sagittal, transverse and vertical directions followed by tipping of the maxillary anterior teeth in a labial direction [26], [27].…”

“…A change in the transverse direction causes an expansion of the dental arch, a change in the vertical plane followed by the eruption of a particular tooth. Muscular changes occur with increased orofacial muscle tone [7], [25].…”

“…Research conducted by [25] in patients with class II malocclusion with mandibular retrognathia, bionator stimulates mandibular growth in an anterior direction and gives the effect of widening the occlusal plane. Research conducted by [5], [44] gave the same result of anterior mandibular repositioning as a result of forwarding and downward shift of the condyle in the glenoid fossa.…”