Although most orthodontists avoid extractions, treating patients with biprotrusion traditionally involves removing teeth. In the current case report, a 15-year-old deaf patient had Class II molar and canine relationships, 8 mm overjet 3mm overbite, 3 of discrepancy between U/L midline, crowding in both arches (3 upper 7 lower). The first right (16) left lower molars (36 46) were severely MIH af...

Purpose: The purpose of this study was to assess the effects of distal jet for the first molar distalization on the eruption of maxillary second molar. Materials and Methods: The dental casts and cephalograms of 33 patients with class II malocclusion were analyzed. The group of distal jet appliance consisted of 18 patients with the second molars absent or partly erupted. And 15 patients with co...