RO0111

I 31 clinical technique _ WaveOne I roots1_2011 _Case studies CaseI(Figs.14a–c) Tooth #36 presented with symptoms of irre- versible pulpitis and early apical periodontitis. Initial radiographic assessment showed four narrow and curved canals. Access was made and all canals were workedtolengthwitha10K-file.AWaveOnePrimary file (25.08) was selected and length was reconfirmed witha10K-file.TheWaveOnePrimaryfilewasworked tolengthinallfourcanals.Obturationwasdonewith warm vertical condensation (WVC) using Calamus Dual. CaseII(Figs.15a–c) Tooth #16 had symptoms of acute pulpitis with a temporary filling, covering exposure distally, as well as severe curvature of the mesiobuccal (MB) canals and apically in the distal canal. K-files 8 and 10 were taken to length in all the canals. A WaveOne Primary file (25.08) was selected. Length was confirmed with a 10 K-file. The WaveOne Primary file was taken to length in all the canals. Obturation was done with WVC using Calamus Dual. CaseIII(Figs.16a–c) Tooth #17 presented with radiographic evidence of apical periodontitis and was non-vital. The canals werehardlyvisibleonthepreoperativeX-ray.Primary consideration would have been a WaveOne Small file (21.06). In all canals, the 8 K-file moved to length easily. The 10 K-file also moved to length but was tight. A WaveOne Primary file (25.08) was selected and taken to approximately three-quarters of the length. Recapitulationwasachievedwitha10K-filetolength. The WaveOne Primary was taken to length in all the canalsandthecanalswerethenobturatedwithWVC. Figs. 14a–c_Pre-op radiograph of #36 showing narrow and curved canals (a). Post-op radiographs: Canals were shaped with a WaveOne Primary file and filled with gutta-percha with WVC (b & c). Figs. 15a–c_Pre-op radiograph of #16 showing severely curved MB and DB canals (a). Post-op radiographs: Canals were shaped with a WaveOne Primary file and filled with gutta-percha with WVC (b & c). Figs. 16a–c_Pre-op radiograph of #17 with canals hardly visible (a). Post-op radiographs: Canals were shaped with a WaveOne Primary file and filled with gutta-percha with WVC (b & c). Figs. 17a–c_Pre-op radiograph of #17 with canals barely visible and #15 with a quite large canal (a). Post-op radiographs: #17 canals were shaped with a WaveOne Primary file. #15 canal was shaped with a WaveOne Large file. All canals were filled with gutta-percha with WVC (b & c). Fig. 14a Fig. 14b Fig. 14c Fig. 15a Fig. 15b Fig. 15c Fig. 16a Fig. 16b Fig. 17b Fig. 16c Fig. 17a Fig. 17c