KODEN NITI Open Coil Spring

NiTi open coil spring is used to create space for alignment of malposed teeth. Sometimes, less inter- bracket span exists between teeth and periodic reactivation of NiTi open coil spring. NiTi open coil spring is an effective option regain sufficient arch length in usual orthodontic practice. Length of open coil spring depends upon the span between anterior and posterior hooks with the amount of extraction space.