Skeletal and Dentoalveolar Effects of Maxillary Protraction Using Tooth- and Miniscrew-Anchored Devices in Patients with Class III Malocclusion with Maxillary Deficiency: A Retrospective Follow-Up Study

Introduction: This retrospective study aimed to determine skeletal and dental changes after a growth spurt shortly treatment using facemask in Class III malocclusion with maxillary deficiency. Methods: We retrospectively studied 50 patients (25 per group) who underwent tooth-anchored (T-A, mean age 7.92) miniscrew-anchored (M-A, 9.84) intraoral appliances. In both groups, the applied traction force of 350–400 g each side, such that was directed 30° forward downward. Lateral cephalometric radiographs were obtained from all before (T1), immediately (T2), at an average 37.11 months protraction (T3). A total 13 measurements analyzed changes. paired t-test used verify effects before, after, during follow-up periods group. Results: An anteroposterior relationship, values SNA ANB, evident groups T2, significantly improved M-A group (p < 0.05). However, ANB MP–SN, which indicate relapse vertical relation maxilla mandible, higher T-A compared period. The first molars more extruded incisors protruded than group, this persisted T3 Conclusions: Miniscrew-anchored increased improvement relationship reduced relapses growing hyperdivergent patterns malocclusion.