Evaluation of the skeletodental effects of Forsus and Activator appliances in Class II Dıvısıon 1 malocclusions

Çakmak B.

30th Congress of the Balkan Stomatological Society (BaSS), Thessaloniki, Yunanistan, 7 - 09 Mayıs 2026, ss.71, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Thessaloniki
  • Basıldığı Ülke: Yunanistan
  • Sayfa Sayıları: ss.71
  • Gazi Üniversitesi Adresli: Evet

Özet

Introduction: Class II Division 1 malocclusion is characterized by mandibular retrusion and increased overjet. Functional treatment aims to reduce skeletodental discrepancy using removable or fixed functional appliances. Objective: The aim of this retrospective study was to comparatively evaluate the skeletal and dental effects of Forsus and Activator appliances in growing patients with Class II Division 1 malocclusion. Materials and Methods: The inclusion criteria were as follows: patients in the pubertal growth period, Class II skeletal relationship due to a retrognathic mandible, Class II molar-canine relationships, a normodivergent growth pattern, and an overjet of 4 mm or greater. The study group consisted of 30 growing patients, with 15 treated using an Activator appliance and 15 treated with a Forsus fixed functional appliance. Angular and linear measurements were obtained from lateral cephalometric radiographs taken at the pre-treatment and post-treatment. Intragroup comparisons were conducted using the Wilcoxon Signed Rank test, while intergroup comparisons were performed using the Mann–Whitney U test. The level of statistical significance was set at p<0.05. Results: Statistically significant within-group differences were observed in all measurements (p<0.05). A greater increase in SNB and a greater decrease in ANB were observed in the Activator group compared to the Forsus group. Dentoalveolar measurements, including incisor inclination, overjet, and overbite changes, did not show significant differences between groups (p>0.05). Conclusions: Both Forsus and Activator were effective in treating Class II Division 1 malocclusion during the growth period. The skeletal effect obtained with the Activator was greater than Forsus.