EVALUATION OF TREATMENT OUTCOME WITH PALATAL PLATE VS CONVENTIONAL TOOTH BORNE ANCHORAGE IN CLASS III PATIENTS (CONTROLLED RANDOMIZED COMPARATIVE IN VIVO STUDY)

Background: Patients with skeletal class III patients need early treatment intervention. Clinical dental adverse effects accompanied by skeletal orthopedic treatment need introducing new treatment modalities. Aim: the purpose of this study was to compare the results of maxillary protraction in skeletal class III patients using facemask with two different intra oral anchorage devices. Materials and methods: 14 growing patients with age range (9-12 years) were included in this study. Patients were diagnosed with skeletal class III deficient maxilla. All patients received face mask treatment; first group was treated using trans palatal arch (TPA) with hooks for face mask, while the second group was treated using mini screw retained palatal plate. Lateral cephalometric x ray before and after treatment measurements were measured, superimposed and compared using onyxceph software. Results: first group (TPA) show statistically lower SNA amount of difference after treatment compared to palatal plate group, while SNB amount of difference was not statistically significant between the two groups. ANB amount of difference after treatment was statistically higher in palatal plate group than TPA group, Wits appraisal was not statistically different. Upper central incisor inclination was statistically significant lower in palatal plate group. Conclusion: both groups were able to successfully be treated. Palatal plate group had advantage of less dental side effects.