Evaluation of Gutta-Percha-Filled Areas in Root Canals after Filling by Two Different Obturation Techniques
نویسندگان
چکیده
The aim of this study was to determine the percentage of gutta-percha-filled area (PGFA) in the apical third of root canals after filling with either System B or cold lateral lateral condensation techniques. Sixty-six recently extracted human maxillary central incisors were prepared with ProTaper NiTi rotary files and randomly divided into two groups of 33 teeth each. Root canal obturation was carried out as the following: Group 1: Cold lateral condensation technique; Group 2: System B. The teeth were sectioned horizontally at 1, 2, 3, 4 mm from the working length. The total cross-sectional area of each canal was measured and the areas of gutta-percha, sealer and voids were calculated and converted to percentages of total surface area. Data were subjected to the Independent t test. At all levels, System B produced significantly higher gutta-percha filled areas (P < 0.001) and lower sealer and void-filled areas (P < 0.001) than lateral condensation technique. System B exhibited better complete obturation with minimal sealer thickness compared to cold lateral condensation.
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