Comparison of sealing ability of different obturation techniques in type II root canals
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This study evaluated the sealing ability of obturation technique in type II root canal through the comparison of the presence of voids between the single-cone technique using calcium silicate-based sealer and continuous wave compaction technique using resin-based sealer. This study used 30 extracted human maxillary single-rooted premolars that were instrumented with rotary nickel-titanium instrument and randomly assigned to two groups. The root canals were obturated with either single-cone technique using calcium silicate-based sealer or with continuous wave compaction technique using resin-based sealer. The presence of voids in the samples in mesio-distal directions were evaluated using radiographs. There were more voids in the total volume and coronal third of the roots in the single-cone technique group than in the continuous wave compaction technique group. However, there was no significant difference in the percentage volume of voids in the middle and apical thirds of the roots between the two groups. Additionally, there was no significant difference between two groups with respect to external voids. Within limitation of this study, single-cone technique with calcium silicate-based sealer should be used very carefully in type II root canals.
Abstract
This study evaluated the sealing ability of obturation technique in type II root canal through the comparison of the presence of voids between the single-cone technique using calcium silicate-based sealer and continuous wave compaction technique using resin-based sealer. This study used 30 extracted human maxillary single-rooted premolars that were instrumented with rotary nickel-titanium instrument and randomly assigned to two groups. The root canals were obturated with either single-cone technique using calcium silicate-based sealer or with continuous wave compaction technique using resin-based sealer. The presence of voids in the samples in mesio-distal directions were evaluated using radiographs. There were more voids in the total volume and coronal third of the roots in the single-cone technique group than in the continuous wave compaction technique group. However, there was no significant difference in the percentage volume of voids in the middle and apical thirds of the roots between the two groups. Additionally, there was no significant difference between two groups with respect to external voids. Within limitation of this study, single-cone technique with calcium silicate-based sealer should be used very carefully in type II root canals.
참고문헌 (25)
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