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ORIGINAL ARTICLE
Year : 2011  |  Volume : 14  |  Issue : 2  |  Page : 156-159

Influence of different organic solvents on degree of swelling of poly (dimethyl siloxane)-based sealer


Department of Conservative Dentistry and Endodontics, Faculty of Dental Sciences, Sri Ramachandra University, Chennai, India

Correspondence Address:
Thilla Sekar Vinothkumar
#14/D-1, A.E. Koil Street, New Washermenpet, Chennai, Tamilnadu 600 081
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.82621

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The study evaluated the compatibility of chloroform, ether, and xylene with poly(dimethyl siloxane) (PDMS) based sealer. Freshly mixed sealer was placed in 90 glass molds with 5 mm diameter and 2 mm thickness. All samples were stored in 75% relative humidity at 37ºC for 2 weeks. All the samples were divided into three groups: group A - chloroform; group B - ether, and group C - xylene and immersed in fresh solvent at room temperature. The specimens were weighed before and after immersion for each group at the end of 2, 5, and 10 min. The swelling ratio was calculated for all the groups. Intergroup comparison revealed no difference in the mean swelling ratio for 2, 5, and 10 min (P > 0.001; Tukey HSD Post Hoc). Intragroup comparison revealed significant difference in swelling ratio between 2 and 5 min for group B and group C (P < 0.001; Paired t test). Ether has the highest compatibility with PDMS-based sealer after 2 min followed by xylene after 5 min.


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