Fig. 5
From: Mandibular molar uprighting using orthodontic miniscrew implants: a systematic review
Uprighting of a mesially impacted #37 with miniscrew anchorage, an open coil spring and a stainless steel uprighting spring. a Step 1: Unlocking of the second molar with distalizing force from .016 in. stainless steel wire and open coil spring. b Step 2: Uprighting of the second molar with tip back moment from .016 × .022 in. stainless steel wire spring (from Lee et al. [4], with kind permission of Journal of Clinical Orthodontics)