In turn they are furthermore divided into: 14mm active part remodeling instrument for chopping movement. At the entry of the active part, at D1, the taper is 0.02 mm/mm, but every 2 millimetres, until D16 is reached, the taper increases by 0.02 mm/2mm. Convex triangular cross-section with rounded edges and slightly negative cutting angle. Protaper (Dentsply Maillefer, Tulsa, Okla.). The Wave One system has a pure convex triangular section from D9 to D16 and modified from D1 to D8, while the Wave One Gold system has a parallelogram section with 85º edges.ģ.The Wave One system is made in M-wire and the new Wave One Gold has a heat treatment after its manufacture, obtaining a new alloy, called GOLD.Additionally, it shortens duct preparation time by 23% and further reduces clinical fatigue. The files are available in three classic lengths: 21, 25 and 31 mm with a short 11 mm handle for improved access to the back teeth. Subsequent to the Wave One files, the Wave One Gold system was designed in 2015, with 70% more flexibility than the primary system and providing greater channel preparation safety. The WaveOneTM LARGE (040.08) file will be used instead of the K 020 file if it reaches the expected length, or for use on the upper incisors, the single duct premolars and some molars with larger diameter ducts.The WaveOneTM SMALL file (021.06) is used to either replace the K 010 file, or for use on the lower incisors, the MBII ducts of the upper molars and/or the ducts with apical curvatures.The WaveOneTM PRIMARY file (025.08) is designed to fully prepare most root canals.These files shape the root canals by means of a reciprocating asymmetric movements, which means that they continuously change their direction of rotation during the forming procedure with a large turning angle in the cutting direction and a smaller angle in the reverse direction (allowing it to progress along the canal path, with respect to the root's anatomy). They are divided into three varieties: Files with a non-cutting tip available in most sizes.Ģ. Rotary files can be continuously, or reciprocally, rotating.ġ. Make sure you take into consideration the details and main features associated with each one of these files and technologies. In addition to this, modern endodontics not only involves rotary files as mechanized instruments, but also a wide variety of devices to facilitate endodontic treatment, such as endodontic motors or apex locators, among others. This does not mean that we have turned our backs on manual files, but rather use these new technologie as a supplement to manual files in order to facilitate endodontic treatments. Consequently, rotary and mechanized endodontic files were created to help prepare the root canal in a more comfortable and practical way. With the passage of time, endodontics has modernized with the rise of more powerful technologies and in order to meet the needs of dentists across the world. After our previous article: "Everything you should know about endodontic files: (I) Manual files" here comes the continuation to this.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |