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The adaptability of three different gutta percha obturation techniques: Thermafil, System-B/Obtura, lateral ondensation | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 22, Issue 3, 2010, Pages 39-45 | ||
| Authors | ||
| Hussain F. Al-Huwaizi; Samer A. Al-Shimari | ||
| Abstract | ||
| ABSTRACTBackground: Complete obturation of the root canal with an inert filling material and creation of a hermetic apicaland coronal seal are the goals of successful endodontic treatment. The aim of the study was to evaluate andcompare the adaptability of gutta percha root canal fillings achieved with Thermafil, system B/Obtura, and lateralcondensation techniques.Materials and methods: Forty five freshly extracted maxillary first molar teeth were selected for this study. The canalswere prepared with crown-down technique using GT rotary files; the coronal half of the roots were instrumentedusing ISO 12/35 GT rotary file at 300-350 r.p.m. The apical half was instrumented with ISO. 04/30 GT rotary file, and forshaping the most apical third of the canal they were prepared with No. 35 reamer by reaming action only. Theprepared roots were obturated using either Thermafil system (G1): using System B/ Obtura technique (G2) or Lateralcondensation technique. The teeth were sectioned horizontally 1.5 mm occlusal to the true anatomical apex. Thenext four sections were made so the occlusal surface was 4.0, 6.0, 8.0, and 10 mm occlusal to the anatomical apex.The samples were examined under a light optical microscope to trace the periphery of each area in the image tocalculate: Sealer/Gutta percha ratio, Sealer film average thickness and the percentage of increase above sealeraverage film thickness.Results and conclusion: At the apical two levels Lateral Condensation obturation technique had the bestadaptability to canal walls followed by Thermafil and finally by Obtura/System-B technique, while at the coronalthree levels Obtura/System-B obturation technique had the best adaptability to canal walls followed by Thermafiland finally by Lateral Condensation.Keywords: Thermafil, Obtura/System-B, Lateral condensation, adaptation. (J Bagh Coll Dentistry 2010;22(3):39-45). | ||
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