Journal ArticleDOI
A preliminary study of the percentage of gutta-percha-filled area in the apical canal filled with vertically compacted warm gutta-percha
TLDR
After warm vertical compaction, the quality of adaptation of gutta-percha to the wall of the apical root canal varies; the influencing factors in this study were the depth of heat application and the width of the Apache root canal.Abstract:
Aim The aim of this study was to determine the influence of the width of apical root canals and the depth of heat application during warm vertical compaction on the percentage of gutta-percha-filled area (PGFA) in the apical root canal. Methodology Two groups of extracted human canines (total 60) were instrumented and filled with vertically compacted warm gutta-percha up to the apical foramen (AF). Using the Touch 'n Heat device heat was applied 4 mm from the AF in one group and 2 mm in the other. The number of teeth with gutta-percha extrusion was recorded. A horizontal section was cut 1.5 mm from the AF of each tooth. The cross-sectional area of the canal and the gutta-percha was measured using an image-analysis programme. The PGFA was then calculated. Multiple linear regression was performed to investigate the association between the experimental variables and the PGFA, and the occurrence of gutta-percha extrusion. Results A significant association was seen between the depth of heat application and the PGFA (P = 0.000), and between the canal area and the PGFA (P = 0.038). The average PGFA reached 96.1% when heated to 2 mm, as compared with 87.0% when heated to 4 mm. PGFAs were lower in wide apical canals than in small canals. Gutta-percha extruded in seven teeth (12%) and was independent of experimental variables. Conclusions After warm vertical compaction, the quality of adaptation of gutta-percha to the wall of the apical root canal varies; the influencing factors in this study were the depth of heat application and the width of the apical root canal.read more
Citations
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Review of contemporary irrigant agitation techniques and devices
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Effect of obturation technique on sealer cement thickness and dentinal tubule penetration
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Methods of filling root canals: principles and practices
TL;DR: This article provides an overview of current principles and practices in root canal filling and strives to untangle the limited and often contradictory research of relevance to clinical practice and performance.
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The Quality of Root Canal Preparation and Root Canal Obturation in Canals Treated with Rotary versus Self-adjusting Files: A Three-dimensional Micro-computed Tomographic Study
TL;DR: Within the limitations of the present study, the self-adjusting files allowed better cleaning and shaping and better adaptation of the root canal filling than those allowed by rotary files.
Journal ArticleDOI
Limited ability of three commonly used thermoplasticized gutta-percha techniques in filling oval-shaped canals.
Gustavo De-Deus,Claudia Reis,Denise Beznos,Alice Maria Gruetzmacher de Abranches,Tauby de Souza Coutinho-Filho,Sidney Paciornik +5 more
TL;DR: A limited ability to fill oval-shaped canals was achieved in the 3 thermoplasticized techniques tested, and no significant differences among these techniques were detected.
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Journal ArticleDOI
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