Khaly Bane

Abstract

Objective: The objective of this study was to evaluate root canal preparation with the Wave One® system as well as single cone endodontic obturation techniques and with staked obturators from the same systePm. Materials and Methods: 31 patients with 46 teeth and 76 roots canals were included. The roots canals were prepared with Wave One® files and fillled with calibrated cones or stake plugs from the same system. The average times of root canal preparation and filling were measured. The quality of the filling was evaluated by post-operative radiographs according to its limit and density. In addition, errors during shaping and root canal filling were investigated. Results: The average duration of canal shaping was 9.85. For root canal obturation, the average duration was 6.69 with the single cone technique and 5.55 with the stake system (p > 0.05). Concerning the apical limit, the single cone technique had 90.6% of adequate limit and the stake system 83.3% (p > 0.05). The single-cone technique showed 7.8% of parietal voids and the stake system 16.6% of parietal and central voids (p > 0.05). Finally, no accidents were reported. Conclusion: This study shows that root canal preparation with Wave One® followed by filling with cones or stake plugs of the same system provides satisfactory results. Keywords: Root canal obturation, root canal preparation, Wave One®.

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Abstract

Introduction: The aim of the present study was to compare the filling capacity of cold lateral condensation, warm vertical condensation and Thermafil® in severely curved canals of extracted human molars. Material and Methods: Mesiobuccal (MB) canals of 90 mandibular molars with angles of curvature ranging between 25° and 35° and radius of 5 to 9 mm curvature were divided into three groups (n=30 each). In each group, canals were instrumented with ProTaper® and obturated either by cold lateral condensation (L), warm vertical condensation (V) or Thermafil® (T). The limit was considered adequate (0-2 mm to the radiologic apex), or with over-obturation or with over-extension. The presence of voids and their location in the canal was also explored and the density was evaluated. Data were analyzed using the Kruskal Wallis test. Differences were significant with a two-sided ? Results: The majority of obturations with adequate limit was from group V (66.8%). Group T displayed the highest proportion of over obturation (46.7%) and group L the highest proportion of over-extension (33.3%) (P < 0> Conclusion: Warm vertical condensation and Thermafil® techniques give the best results for the obturation of curved canals in respect to limit and density. Keywords: Apical limit, Cold lateral condensation, Obturation, Thermafil®, Voids, Warm vertical condensation

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