Lower second molar extraction in correction of severe skeletal class III malocclusion.

摘要: Abstract The purpose of this study was to evaluate dentoskeletal and soft-tissue profile changes after extraction lower second molars treatment using the Tip-Edge technique in severe Class III subjects. Thirteen patients with skeletal malocclusion (four males, nine females), diagnosed as requiring orthognathic surgery, but who rejected surgical therapy, were included study. average age 13.2 ± 0.8 years. Lateral cephalometric films taken at beginning end analyzed Pancherz analysis a traditional analysis. arithmetic mean standard deviation calculated for each variable. Paired t-test performed significant change. After active treatment, dramatic overjet change noted, an value 5.5 mm (P < .001). Inclination incisors decreased 12.0° when measured mandibular plane upper increased by 2.1° SN p...