Akademik Veri Yönetim Sistemi
99th European Orthodontic Society Congress, Athens, Yunanistan, 9 - 13 Haziran 2024, cilt.47, ss.60, (Özet Bildiri)
BACKGROUND/AIM: Skeletal malocclusions are successfully treated by growth modification in early growth skeletal growth period. Aim of this case report is to present results that a girl having Class III malocclusion with sagittal maxillary de- ficiency in early skeletal growth period was treated by modified pendex combined with upper lip pad and reverse twin-block combined with upper lip pad.
MATERIALS/METHODS: The chronological age of the girl was 9 years, and her skeletal growth period was MP3= according to wrist radiography and CS1 according to the cervical vertebra maturation method. She was mouth breather and she was habit nail biting. Similar anomaly was no exist her family. A concave facial profile was determined due to the weak mid-face and prominent lower-face. She was in the late mixed dentition period. She had Angle Class II molar relationship and crossbite was exist in the anterior region. The upper and lower dental midline coincided with each other. Overjet and overbite were -4 mm and 6 mm respectively. Upper and lower arch length discrepancies were -15 mm and 0 mm respectively. According to lateral cephalometric analysis, ANB, GoGn/SN and McNamara’s facial axis angle were -1o, 43o and 81.5 o degrees, respectively. As a result of this analysis, anomaly was skeletal Class III characterized by hyperdivergiency. The treatment goals were to stimulate maxillary growth, modify mandibular growth, and achieve ideal overjet and overbite with Class I molar and canine relationships. Treatment was started by modified pendex with upper lip pad (T1). After obtaining overjet, reverse twin-block combined with upper lip pad (T2). After overjet and overbite was established, fixed orthodontic treatment started for levelling and aligning.
RESULTS: It was found by structural superimpositions that sagittal maxillary growth induction, mandibular growth restriction and ideal overjet and overbite and molar Class I relation was obtained.
CONCLUSION: Growth modified appliances is be successful in early skeletal growth period.