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South African Dental Journal

versão On-line ISSN 0375-1562
versão impressa ISSN 0011-8516

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VORSTER, M; VAN DER VYVER, PJ  e  PALEKER, F. Remaining dentine thickness following preparation with different glide path techniques in combination with WaveOne Gold Primary File. S. Afr. dent. j. [online]. 2019, vol.74, n.10, pp.534-537. ISSN 0375-1562.  http://dx.doi.org/10.17159/2519-0105/2019/v74no10a3.

INTRODUCTION: This study compared minimum remaining dentine thickness values after different glide path preparation techniques, in combination with WaveOne Gold Primary (PWOG) for final canal instrumentation. METHODS: Mesiobuccal canals of 60 extracted human mandibular molars were selected and randomly divided into four groups (15 canals each). Canals were brought to patency with a # 08 K-file before glide path preparation, which was performed by a single operator. KF GROUP: pre-curved #10-15-20 stainless steel manual K-files; PF group: #10 stainless steel manual K-file followed by PathFiles #1-3; WOGG group: #10 stainless steel manual K-file followed by WaveOne Gold Glider; and NG group: no further glide path preparation. Minimum remaining dentine thicknesses were determined on Micro-Computed Tomography scans at levels 3 mm, 5 mm and 7 mm from the root apex after glide path preparation and again after final preparation with PWOG. One-way analysis of variance (ANOVA) was used to statistically compare groups. RESULTS: No statistically significant differences (p<0.05) were found amongst the groups. CONCLUSION: The least dentine preservation was seen in the group with no glide path preparation prior to PWOG instrumentation. Within the limitations of the study, all the glide path groups in combination with the PWOG instrument seemed to preserve dentine thickness adequately.

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