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Article
Evaluation of Obturation Quality in Round and Irregular Root Canals
Journal of Dental Research (2008)
  • Ahmed A. Madfa
Abstract

Objective: This study compared the quality of root canal obturation in round and irregular-shaped canals at two cross-sectional levels by evaluating the canal area filled by two core materials using two obturation techniques. Methods: Single canals in 60 mandibular premolars were instrumented, irrigated and divided into four equal groups. They were root filled as follows: lateral compaction/RealSeal™ (LC/R), lateral compaction/gutta-percha (LC/GP), warm vertical compaction/RealSeal™ (WC/R) and warm vertical compaction/gutta-percha (WC/GP). The teeth were sectioned horizontally at 3 mm (L3) and 6 mm (L6) intervals from the obturated canal terminus. Shapes of canals in all cross-sections were examined using a Leica Qwin Colour (RGB) image analyzer. To determine whether the shape of each canal was round or irregular, the buccolingual and mesiodistal canal diameters were measured. The cross-sectional area of RealSeal™ and gutta-percha core materials were measured utilizing the same image analyzer. Data were analyzed using general linear model and independent sample t test. Results: Descriptively, at L3 and L6, the areas of both filling core materials were higher in round than in irregular canals. WC/R and WC/GP also showed higher areas than LC/R and LC/GP in irregular canals. Statistically, at L3, there were no significant differences in obturation quality between round and irregular-shaped canals (p>0.05). At L6, for techniques, there were no significant differences between the two shapes (p>0.05). For materials, at L6, WC/R showed a significantly higher area than WC/GP in irregular canals (p<0.05). However in round canals, there was no significant difference (p>0.05). For LC/R and LC/GP, there were also no significant differences between both shapes at L6 (p>0.05). Conclusions: Generally, obturation quality was better in round than in irregular canals. WC/R and WC/GP produced better adaptation than LC/R and LC/GP in irregular canals especially for WC/R at L6. (Supported by P0191/2006B, University of Malaya).

Keywords
  • ROOT CANAL SYSTEM; RESILON,
  • GUTTA-PERCHA,
  • OBTURATION TECHNIQUE; CANAL SHAPE
Publication Date
2008
Citation Information
Ahmed A. Madfa. "Evaluation of Obturation Quality in Round and Irregular Root Canals" Journal of Dental Research Vol. 87C, Abstr. 133 (2008)
Available at: http://works.bepress.com/ahmed_madfa/2/