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All Journal Dental Journal (Majalah Kedokteran Gigi)
Ratna Puspita Hadi
Faculty of Dental Medicine, Universitas Airlangga, Surabaya
Dentistry

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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 Nirawati Pribadi; Karlina Samadi; Meliavita N. K. Astuti; Hendy J. Kurniawan; Adelina K. Tandadjaja; Ratna Puspita Hadi
Dental Journal (Majalah Kedokteran Gigi) Vol. 52 No. 3 (2019): September 2019
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v52.i3.p122-125

Abstract

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 (p< 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.
The expression of nuclear factor of activated T cell c1 and receptor activator of nuclear factor kappa β induced by Enterococcus faecalis in osteoclastogenesis (laboratory experiment on Wistar rats) Nirawati Pribadi; Rosita Rahmawati; Mandojo Rukmo; Adelina Kristanti Tandadjaja; Hendy Jaya Kurniawan; Ratna Puspita Hadi
Dental Journal (Majalah Kedokteran Gigi) Vol. 52 No. 4 (2019): December 2019
Publisher : Faculty of Dental Medicine, Universitas Airlangga https://fkg.unair.ac.id/en

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/j.djmkg.v52.i4.p172-176

Abstract

Background: Enterococcus faecalis (E. faecalis) is the most common bacteria species in persistent endodontic infection of teeth undergoing root canal treatment at a prevalence of 38%. The virulence factor of this bacterium is Lipoteichoic acid (LTA) which can be recognized by Toll-like receptors-4 (TLR-4) that produce a stimulus and provoke an immune response. Inflammation results in bone defects that feature multiple cytokines and interactions between different cell types. Bone loss within a periapical tooth is characterized by osteoclast formation (osteoclastogenesis) in the bone. Purpose: This study aimed to determine the expression of nuclear factor of activated T cell c1 (NFATc1) and receptor activator of nuclear factor kappa β (RANK) which played a role in osteoclastogenesis at different time intervals. Methods: 36 upper molar teeth of the research subjects were induced with 106 CFU Enterococcus faecalis and subsequently observed for 7 and 21 days with the NFATc1 and RANK being counted microscopically at 1000X magnification across 20 viewing fields. Thereafter, the data was examined and analyzed by means of an independent T test using SPSS. Results: NFATc1 and RANK expression were higher in the group including E. faecalis on days 7 and 21 than in the control group. There were significant differences between the treatment group and control group with regard to NFATc1 and RANK expression (p<0.05). Conclusion: The study showed that the expression of NFATc1 and RANK, which plays a role in osteoclastogenesis, was higher in periapical bone defects in Wistar rats induced by E. faecalis than those which were not induced.
Co-Authors Adelina K. Tandadjaja Adelina Kristanti Tandadjaja Hendy J. Kurniawan Hendy Jaya Kurniawan Karlina Samadi Mandojo Rukmo Meliavita N. K. Astuti Nirawati Pribadi Rosita Rahmawati