An in vitro study to determine the sealing ability of sealers with and without smear layer removal.

Abstract

AIMS/OBJECTIVES:

The objective of this in vitro study is to compare the sealing ability of Ketac-Endo and Acroseal.

MATERIALS AND METHODS:

Seventy teeth were selected and sectioned at the cementoenamel junction. The teeth were cleaned and shaped, and they were divided into five different groups. Group1: 20 teeth in which the smear layer was left intact using sodium hypochlorite. Group 2: 20 teeth in which the smear layer was removed using 17% EDTA. Group 3: 20 teeth in which the smear layer was removed using 17% EGTA. These groups (1, 2, and 3) were further subdivided into two subgroups (a and b) by obturation utilizing lateral condensation with Gutta-percha and Acroseal (subgroup "a") or Ketac-Endo (subgroup "b"). The subgroups contained 10 teeth each. Group 4: 5 teeth that were instrumented but not obturated. Group 5:5 teeth that were neither instrumented nor obturated. The specimens were immersed in methylene blue dye, and microleakage was assessed using a stereomicroscope.

RESULTS:

The data was analyzed using one way analysis of variance and student's t-test.

CONCLUSION:

17% EGTA is a better and potent alternative to 17% EDTA for smear layer removal. Acroseal sealer has less microleakage as compared with Ketac-Endo. Sealing ability of Acroseal sealer is better when it is used in conjunction with 17% EGTA.

• Authors: Swaty Jhamb, Vineeta Nikhil, Vijay Singh
• Journal: Journal of conservative dentistry : JCD (J Conserv Dent) Vol. 12 Issue 4 Pg. 150-3 (Oct 2009) ISSN: 0974-5203 [Electronic] India
• PMID: 20543924 (Publication Type: Journal Article)