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JIOS Easy Way for Cinching of NiTi Wires 10.5005/jp-journals-10021-1234 Clinical innovation Easy Way for Cinching of NiTi Wires 1 S Chetan, 2Pooja Chavan ABSTRACT An easy, fast, and effective method to cinch NiTi wire is suggested. Keywords: Cinching, NiTi wire, Distal end. How to cite this article: Chetan S, Chavan P. Easy Way for Cinching of NiTi Wires. J Ind Orthod Soc 2014;48(2):141-142. Source of support: Nil Conflict of interest: None Received on: 7/2/13 Accepted after Revision: 8/6/13 Introduction Cinching of NiTi wires cannot be done as with stainless steel wires due to its property of shape memory. Cinching NiTi wires is more often an intricate and arduous procedure. Usual procedure involves inserting the archwire into the slot, marking it at the distal end of the molar tube and then retrieving it from the oral cavity. The part distal to the marking is heated and the wire is reinserted in the slot followed by cinching, thus making it mandatory to remove the NiTi archwire from the patient’s mouth to cinch it. An easy, fast, and effective method to cinch NiTi wire is presented, based on simple basic principle that, when a sharp bend is given in NiTi wires, it loses its property of shape memory. This principle is similar to that used by NiTi cinching pliers. Fig. 1: NiTi wire approximately 1 cm excess distal to molar tube Fig. 2: Holding the wire at distal most part with Weingart plier and pull it in gingival and mesial direction-yellow arrow Methodology This method has been used by the authors for the last couple of years and has proved successful. 1,2 Assistant Professor 1 Department of Orthodontics, College of Dental Sciences Devangere, Karnataka, India 2 Department of Orthodontics, KLE VK Institute of Dental Sciences, Belgaum, Karnataka, India Corresponding Author: S Chetan, Assistant Professor Department of Orthodontics, College of Dental Sciences Devangere, Karnataka, India, Phone: 9986971863, e-mail: [email protected] The Journal of Indian Orthodontic Society, April-June 2014;48(2):141-142 Fig. 3: Bending with Weingart plier 141 S Chetan, Pooja Chavan Fig. 4: Black arrows—bends which wave come from bending and yellow arrows—to cut between bends The procedures are as follows: 1. Place the NiTi wire with approximately 1cm excess distal to molar tube (Fig. 1). 2. Hold the wire at distal most part with Weingart plier (Fig. 2) and pull the wire in gingival and mesial direction (Yellow arrows—Figs 2 and 3) forcefully. By doing this, two bends will come in wire: one at distal end of molar tube and other around 5 mm away from it (Black arrows—Fig. 4). These bends will be at almost 90° to each other. 3. Cut the wire between these bends (Yellow arrows—Figs 4 and 5). 142 Fig. 5: After cutting—cinched NiTi wire CONCLUSION The method presented to bend the NiTi wire is very simple, effective and less time consuming and compared to the conventional way of bending clinching NiTi wires. Points to be kept in Mind • This method cannot be used when using bondable tubes as force excreted on tubes while bending may debond them. • Difficult to cinch when second molars are banded as in most cases there will be very little space distal to it.