Treatment of a skeletal Class II malocclusion using fixed functional appliance with miniplate anchorage

Abstract

Based on our literature search, we found that the use of miniplate anchorage with Forsus fatigue-resistance device (FRD) has not yet been reported. Therefore, the aim of the present case report was to present the treatment of a patient with skeletal Class II malocclusion with mandibular retrusion using Forsus FRD with miniplate anchorage. Fixed appliances with 0.022-inch slots were attached to the maxillary teeth and after 8 months of the leveling and alignment of the upper arch, 0.019 × 0.025-inch stainless steel archwire was inserted and cinched back. Two weeks after the placement of the miniplates bilaterally at the symphysis of the mandible, Forsus FRD was adjusted to the miniplates with a 35-mm length of rod chosen. Nine months after the skeletal anchored Forsus worn, Class I canine and molar relations were achieved and overjet was eliminated.

Evaluation of the effects of skeletal anchoraged Forsus FRD using miniplates inserted on mandibular symphysis: A new approach for the treatment of Class II malocclusion

“…6,[8][9][10]15 The methods previously described to prevent mandibular incisor protrusion, such as using negative-torqued mandibular incisor brackets, sectional arches, and mini screws, were found to be unsuccessful, although the use of miniscrews decreased the mandibular incisor protrusion. 15 In the present study, the mandibular incisors were surprisingly retruded and this finding was also noted by Celikoglu et al 16 This change might be useful in the treatment of Class II malocclusion with protruded mandibular incisors and with diastema. It is possible that the pressure of the maxillary incisors and lower lip caused this change.…”

“…Previously, Celikoglu et al 16 showed this to be a successful option for the treatment of Class II malocclusion with mandibular retrusion. However, its effects were not extensively investigated.…”

“…The authors reported that the mandibular incisors protruded insignificantly (approximately 3.5u), and the overjet and molar corrections were totally dentoalveolar, confirming that the appliance was not successful for the skeletal improvements. Recently, Celikoglu et al 16 published a case report showing the treatment of a skeletal Class II malocclusion due to mandibular retrusion using a Forsus FRD appliance with miniplate anchorage inserted on the mandibular symphysis. The authors reported that this new approach was effective for correcting Class II malocclusion without mandibular incisor protrusion and with the skeletal contributions.…”

Effects of miniplate anchored and conventional Forsus Fatigue Resistant Devices in the treatment of Class II malocclusion

“…7,16 Studies have recently focused on eliminating these undesirable effects. [12][13][14] The effects of the Forsus FRD appliance on maxillary growth were investigated by SNA and Co-A measurements. In both groups, a significant decrease was found in the SNA angle.…”

“…[12][13][14] However, to our knowledge, no study has compared the skeletal, dentoalveolar, and soft tissue effects of miniplate anchored Forsus FRDs and conventional Forsus FRDs in the treatment of Class II malocclusion. The aim of this prospective study was to compare the skeletal, dentoalveolar and soft tissue effects of miniplate anchored Forsus FRDs and conventional Forsus FRDs in the treatment of Class II malocclusion.…”