Dental Tribune United Kingdom Edition

26 Clinical United Kingdom Edition February 7-13, 2011 NSK United Kingdom Ltd www.nsk-uk.com Office 5 Gateway 1000 Arlington Business Park Whittle Way Stevenage Hertfordshire SG1 2FP Tel: 0800 6341909 +44 (0)1438 310670 Fax: 0800 6341910 +44 (0)1438 310671 NSK’s Endo-Mate TC2 has a large LCD screen, simple 5-key operation and a lightweight, cordless handpiece ensuring it is easy to use even during the most delicate endodontic procedures. The Auto Reverse & Alarm Function sounds an audible alert when the preset torque level has been reached, allowing the operator to unload the file even before the Auto Reverse function engages. Endo-Mate TC2 also features 5 programmes for different file systems whilst supporting most major brands of Ni-Ti files. Specifically designed for use with Ni-Ti files from all major suppliers, the ENDO-MATE DT endodontic micromotor delivers complete versatility with an advanced memory able to store up to 9 speed and torque settings. The ultra-slim, lightweight handpiece is the ideal alternative to hand-held root canal instruments, delivering an extremely low level of noise and vibration that effectively promotes patient comfort whilst reducing hand fatigue. ENDO-MATE DT can be connected directly to a wall outlet or used with a rechargeable battery. A large LCD display offers higher visibility for instantaneous recognition of the micromotor’s status. NSK’s apex locator, iPex which accurately measures the length of any root canal, including dry, wet and bloody canals, helps clinicians perform safer, more accurate root canal treatment. NSK’s Varios 970 Ultrasonic scaler incorporates the brand new NSK iPiezo control board with the very latest, and most advanced, standards in auto feedback technology, making the performance smoother and more efficient when used for endodontic shaping. The Varios is also available as a built-in unit - Varios 170, which can be used in conjunction with NSK’s new Multipad to easily control all it’s functions. To perform with confidence call NSK on 0800 6341909 or visit www.nsk-uk.com As one of the world leaders in handpiece technology, NSK can help clinicians perform safer, more accurate root canal procedures with their range of endodontic handpieces, micromotors, Ultrasonic scaler and apex locator. Featuring, precision control Endo-Mate TC2 Endo-Mate DT iPex Varios 350 Varios 970 NLX Plus Varios 170 MultiPad NLX Plus MultiPad 標準 ( 印刷用 ) レーザーマーキング用 光グラデーション付 枠付 ( 印刷用 ) PANTONE 432C 1101DT a great deal of burnishing and wedging apart of the teeth to pro- duce adequate contact points, and the anatomical interproximal contour is often not accurately reproduced. The best way around this problem is with the use of a sectional “active” matrix system such as the V3 Ring System or the Palodent system. This comprises of a very thin sectional metal band which is wedged and then held in place with a ring, not dis- similar to a rubber dam clamp. This ring, as well as holding the band in place, will push apart the teeth sufficiently so that when ring and matrix are removed; there will be a good tight contact point/area. 4. Bonding protocol Understanding proper dentine bonding technique is essential. Enamel bonding is well under- stood and relatively simple and reliable. Dentine bonding, how- ever, has undergone numerous changes over the past 15 years with several generations now available. The range of systems can be a little bewildering; how- ever the use of high quality den- tine bonding systems, such as Optibond Solo or Prime & Bond NT, if used correctly, will lead to good results. Poor bonding technique can lead to post-operative sen- sitivity and premature failure of the bond leading to micro- leakage and secondary caries. The most important thing is to read the instructions; it is amazing the number of people who don’t! Each genera- tion of bonding system has particular peculiarities to it, such as having to shake the bottle before use, or to having to keep the product refrigerated, it is therefore essential to read the instructions and to follow the pro- tocol correctly for optimal results. Summary Due to the extra demands of placing posterior composites, some dentists might be reluctant to provide this type of restora- tion. However, given a good un- derstanding of modern materi- als and the application of sound clinical technique, posterior composites can be beautiful long- lasting restorations that please clinician and patient alike. DT About the author Dr Ian Cline B D S ( L o n d ) DGDP(UK) Ian is in Private Practice in London’s West End and is the Co- founder and Course Director of Cosmet- ic Dental Seminars www.cosmeticden- talseminars.org, the organisation devoted to providing state-of-the-art courses in aesthetic dentistry. Fig 1 Failed restoration requires replacement Fig 2 Rubber Dam placed and restoration removed Fig 3 Placement of Sectional “Active” matrix system Figu 4 SDR™ Flowable Restorative Compos- ite Base placed Fig 5 Manipulation of Hybrid Composite Fig 6 Finished restoration page 24DTß