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Background:    The smear layer is attached to dentine and occludes the orifice and, consequently, must be removed in order to improve    the success of inroot canal treatment. The ideal irrigation material removes both the organic and inorganic smear layers. Ethylene    diamine tetra-acetic acid (EDTA) is one of the most commonly used root canal irrigation materials, but removes only inorganic smear    layer. To overcome this problem, Pineapple (Ananas comosus L. Merr.) peel extract, which contains saponins, bromelain, polyphenol    and flavonoid, is used during root canal irrigation.    Purpose:    The study aimed to analyze the difference in smear layer removal between    the use of 6.25% pineapple peel extract and 17% EDTA.    Methods:    27 samples of mandibular premolar teeth with straight root canals    were divided randomly into three groups (n = 9) and subsequently prepared using protaper. Irrigation was performed on the control    group (aquadest), group I (17% EDTA) and group II (6.25% pineapple peel extract). The samples were dried, temporarily compressed    and cut horizontally from the apical to the coronal. Samples were fixed with holder before the smear layer was observed through a    scanning electron microscope (SEM). The resulting data was analyzed by means of an ANOVA test.    Results:    The highest score of    root canal hygiene was recorded by group II, followed by group I and, finally, the control group. There were significant differences    between the groups (pu003c 0.000).    Conclusion:    6.25% pineapple peel extract produces a higher smear layer removal effect than 17%    EDTA on the apical 1/3 of the root canal.

dental journal

The differences in root canal smear layer removal between 6,25% pineapple (Ananas comocus L. Merr.) peel extract and 17% Ethylene diamine tetra-acetic acid