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ePaper created 2016-01-20, 13:53:08 | version 1.38.0
38 I I new product technique _ shaping canals theinstrumenthasachancetotaperlock,disengages 30 degrees in a clockwise (CW) direction. The net file movementisacuttingcycleof120degreesandthere- foreafterthreecyclesthefilewillhavemadeareverse rotation of 360 degrees (Fig. 4). The X-Smart iQ (Fig. 5) launched in conjunction with WaveOne GOLD is an endodontic motor and cordless 8:1 handpiece designed for reciprocation and continuous motion. The handpiece is Bluetooth controlledbyaDENTSPLYAppleiOSiQappdownloaded on to an iPad mini 2 (Apple). As a complete digital so- lution, it is designed for all stages of the endodontic procedure,includingpatientmanagement,fileselec- tion, torque control training and patient education. The X-Smart iQ also offers electronic apex locator functionality. Currently available DENTSPLY recipro- cating file motors and their respective handpieces, the X-Smart Plus motor (Rest of the World) and Pro- Mark and e3 Torque Control motors (North America), can be used without modification when using the complete range of WaveOne GOLD files. All recipro- catingfilemotorsarepreprogrammedtoproducethe reverse bidirectional movement, but the CCW/CW angles, torque and speed settings cannot be altered. These motors can, of course, be used for continuous rotationwhentheclinicianisabletoadjustthespeed and torque, as desired. _Shaping technique (Fig. 6) The WaveOne GOLD Primary (025.07) is always used first to initiate the shaping procedure. It will createoptimalshapeinapproximately80%ofcanals as a true single-file technique and is used in canals thathaveaconfirmed,smoothandreproducibleglide path. An expanded glide path is a perfect set-up for thesafeapicalprogressionofanymechanicallydriven endodontic file.30 The WaveOne GOLD Small (020.07) file should be thought of as a bridge file, as the resulting shape is considered too small to allow disinfection and filling of the root canal system. When the Primary file will not passivelyadvancethroughthe glide path, which has been verified to length, the Small file is used to transition and expand the shape. The Pri- maryfileisthenre-utilisedto reach the full working length. Although a two-file sequenceistheexception,thismethodmustbecon- sidered a safer and more efficient option compared Fig. 8_A ProGlider progressing apically expands the glide path. Fig. 9_WaveOne GOLD Primary progressing apically through the expanded glide path. Fig. 10_WaveOne GOLD Primary at full working length. Fig. 11_WaveOne GOLD Primary loaded with debris, especially in the apical extent of the file, indicating that full shape has been achieved. roots1_2015 Fig. 10 Fig. 12 Fig. 9 Fig. 11 Fig. 8 Fig. 12_WaveOne GOLD obturating solutions with matching paper points, gutta-percha points and Thermafil.