roots - international magazine of endodontology No. 4, 2016

| case report canal shaping 30 roots 4 2016 Successfully preventing re-infection As mentioned above, a thorough rinsing protocol wasperformedthroughoutthewholensRCT.Thecon- stantcopiousirrigationhelpedtoclearthecanalofre- mainingdebrisornecrotictissue.Ascleaningirrigants we used sodium hypochlorite (NaOCl) in a concentra- tionof5.25 %andcitricacid(40 %).Bothirrigantswere activatedbyultrasoundaswellasmanualdynamicac- tivation (cone pumping). Corresponding paper points wereinsertedtodrythecanalsafterwards. In the end a bioceramic sealer and gutta percha were used in the hydraulic condensation technique for permanent obturation (Fig. 9). After curing, bio- activefillingmaterialcanformso-calledhydroxyap- atitecrystalsonthesurface.Thecrystalshelptostim- ulate the regeneration of bone and dentin tissue in Fig.4: Occlusal view on one of the steps. Fig.5: Pre-bendable File 35/.06. Fig.6: Pre-bent File 35/.04. Fig.7: File 45/.04. Fig.8: Guttapercha cone fit. Fig.9: Obturation material in situ. Fig.4 Fig.8 Fig.9 Fig.5 Fig.6 Fig.7 42016

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