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Dental Tribune Middle East & Africa Edition | 1/2017 26 RESTORATIVE As a result, the adhesive was able to evenlypenetratetheenamel. Excess adhesive was then dispersed with compressed air. The resulting thin adhesive film was light-cured for 10 seconds using the High Power mode of the curing light (1,200 mW/ cm2,BluephaseN). The layering procedure was begun by building up the lingual contours with the help of the silicone key. First, I applied IPS Empress Direct EnamelA3,followedbyTetricN-Flow (Fig. 5). It should be noted that Tetric N-Flow is particularly suitable for re- constructingthelingualanatomy. Once the lingual walls were rebuilt, the dentin and enamel areas were layered. IPS Empress Direct Dentin A3, Dentin A2, Enamel A2, Trans 30 and Trans Opal were used for this part. It is advisable to work from inside out – from the dentin towards the enamel – to facilitate the layering procedure. After light-curing the composite material, I contoured the restorations to give them a natural shapeandcreatedatexturedenamel surfaceusingadiamondbur.Asare- sult,therestorationsdemonstrateda lifelike and vibrant appearance and faithfully reflected the optical prop- erties of the natural teeth (Figs 6 to 8). Finally, I polished the restoration to a natural looking gloss using the As- tropol® and Astrobrush® polishing sets (Fig. 9). Two weeks later, tooth 21 showed an undesirable change in shape. We therefore decided to remodify the restoration. The retreatment re- sulted in a restoration that met the expectations of both the patient and myown(Fig.10). Result A lifelike and functional restoration was achieved in the case presented above with the help of the IPS Em- press Direct composite system, combined with solid dental skills. Six months after the placement, no imperfectionsorchangesinshadeor shape were noted – neither from the frontalnorfromthelateralview(Figs 11 to 13). Even when evaluated with a polarization filter, the restoration metalltherequirements(Fig.14). Conclusion The case described above shows that healthy tooth structure can be protected and preserved by using minimally invasive technology, sat- isfying both the preferences of the patient and the requirements of the dentist.Onbalance,superiorrestora- tiveoutcomescanbeaccomplished. Fig.10:Optimalresult twoweeksafterplacement of therestora- tion Fig.12:Viewedfrom thelateral, the textureof therestored teeth looksvibrant. Fig.13:Thepatient smileswithconfidence. Fig.11:Evensixmonthafter theplacement, therestorationlookedexceptionallylifelike. Fig.14:Restorationsexaminedwithapolarizationfilter:optimalresults DrYaoLv Department of Stomatology People’sHospitalof YixingJiangsu,China drlvyao@vip.163.com ◊Page24