Quality of root fillings performed with two root filling techniques. An in vitro study using micro-CT. (May 2013)

• Record Type: Journal Article
• Authors: Moeller, L.; Wenzel, A.; Wegge-Larsen, A. M.; Ding, M.; Kirkevang, L. L.
• Is Part Of: Acta odontologica Scandinavica. Volume 71:Number 3/4(2013)
• Page Start: 689
• Page End: 696
• Publication Date: 2013-05
• Subjects: Dentistry -- Periodicals; 617.6005
• DOI: 10.3109/00016357.2012.715192
• Languages: English
• ISSNs: 0001-6357

Abstract

<abstract> <title>Abstract</title> <p> <bold> <italic>Objective.</italic> </bold> The aim of this study was to compare the presence of voids in root fillings performed in oval and ribbon-shaped canals with two root filling techniques, lateral compaction technique (LCT) or hybrid technique (HT), a combination of a gutta-percha masterpoint and thermoplastic gutta-percha. Furthermore, the obturation time for the two techniques was evaluated. <bold><italic>Materials and methods.</italic></bold> Sixty-seven roots with oval and ribbon-shaped canals were prepared using Profile Ni-Ti rotary files. After preparation, the roots were randomly allocated to two groups according to root filling technique. All roots were filled with AH plus and gutta-percha. Group 1 was filled using LCT (<italic>n</italic> = 34) and group 2 was filled using HT (<italic>n</italic> = 33). The obturation time was measured in 30 cases evenly distributed between the two techniques. Voids in relation to the root canal fillings were assessed using cross-section images from Micro-computed Tomography scans. <bold><italic>Results.</italic></bold> All root canal fillings had voids. Permutation test showed no statistically significant difference between the two root filling techniques in relation to presence of voids (<italic>p</italic> = 0.092). A statistically significant difference in obturation time between the two techniques was found (<italic>p</italic> < 0.001). <bold><italic>Conclusion.</italic></bold> The present study found no statistically significant difference in percentage of voids between two root filling techniques. A 40% reduction in obturation time was found for the HT compared to the LCT.</p> </abstract>