In vitro study of apical leakage of root canals after different root apex resection techniques
Journal Title: RSBO - Year 2008, Vol 5, Issue 3
Abstract
Objective: The aim of the present study was to evaluate in vitro apical marginal leakage of root canals after three root apex resection techniques. Material and methods: Thirty maxillary canines were prepared chemo-mechanically to a size 40 master apical file, and enlarged by using Gates Glidden burs 2, 3 and 4. Teeth were obturated by Tagger thermomechanical compaction technique and then divided into three groups (n = 10). The first group (GI) was 3 mm apical resected with Endo Z in high speed handpiece. The specimens of second group (GII) were 3 mm apical weared with Endo Z, and the third group (GIII) had 3 mm apical resected with Er:YAG laser (500 impulse, 12 pps and 300 mJ energy). After the apical sections, IRM cement was placed into the root-end cavity and teeth of each group were immersed in India ink for 5 days and submitted to decalcification and clarifying for marginal apical microleakage visualization with microscope. Results: The results showed statistically difference (p < 0.01) between GI and the other groups. Conclusion: The root apex cut using Endo Z promotes the lowest values of microleakage when used in apicoectomy.
Authors and Affiliations
André MARQUES, Lucas GARCIA, Antônio CRUZ FILHO, Manoel SOUSA NETO
Keywords
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