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CASE REPORT
Year : 2013  |  Volume : 2  |  Issue : 2  |  Page : 122-125

Open-coil orthopedic traction spring: An innovative approach for force delivery with face-mask therapy


1 Department of Orthodontics, Sharad Pawar Dental College, Datta Meghe Institute of Medical Sciences (Deemed University), Sawangi (Meghe), Wardha, Maharashtra, India
2 Department of Pedodontics, Sharad Pawar Dental College, Datta Meghe Institute of Medical Sciences (Deemed University), Sawangi (Meghe), Wardha, Maharashtra, India
3 Department of Endodontics, Sharad Pawar Dental College, Datta Meghe Institute of Medical Sciences (Deemed University), Sawangi (Meghe), Wardha, Maharashtra, India

Correspondence Address:
Pavankumar Janardan Vibhute
Department of Orthodontics, Sharad Pawar Dental College, Datta Meghe Institute of Medical Sciences (Deemed University), Sawangi (Meghe), Wardha - 442 004, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2278-344X.115689

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Facemask therapy/reverse pull headgear is the popular method for maxillary protraction in maxillary deficient adolescence cases. Furthermore, various protraction methods and appliances have been developed, and evaluated extensively for their clinical efficiency. Their effectiveness enhanced with optimum orthopedic force magnitude and low-load deflection rate (LDR) and force constancy over a period of time. With the advent of NiTi springs or springs prepared from thinner wires, force decay has been markedly reduced. For use of NiTi, clinician has to depend upon prefabricated closed coil springs, which are expensive. Open-coil orthopedic traction spring (OCOTS) is developed utilizing 0.012" Australian stainless steel wire for orthopedic traction. This paper describes fabrication and clinical application of OCOTS, with numerous advantages. It sustains low LDR with optimum force magnitude. Its design is adjustable for desired length and force level. It is fail-safe for both activation and deactivation (i.e., it cannot be overstretched or over activated, and decompression limit of open-coil is also controlled by the operator).


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