Ricerc@Sapienza

The aim of this work was to analyze data of patients with failed or delayed eruption of first and second permanent molars, to assess the effectiveness of the treatment methods used. Methods Epidemiologic and clinical data of 125 patients (mean age 14.08 ± 4.04 years) with 197 affected molars (30 first and 167 second molars) were retrospectively analyzed. The treatment outcome was known in 161 molars after patient drop-out (20 patients with 36 molars).

OBJECTIVES The purpose of this study was to evaluate the effects of first premolar extraction on third molar angulation during fixed orthodontic treatment. MATERIALS AND METHODS The sample of this study included pre-treatment and post-treatment orthopantomographs (OPG) of 40 patients, 17 males and 23 women (106 third molars), treated by fixed orthodontic appliances at the Department of Orthodontics, Sapienza University, Rome. All individuals had both first and second mandibular molars present at all stages and initial malocclusion.