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| Year : 2007 | Volume
: 10
| Issue : 1 | Page : 38-42 |
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Fourier transform infrared spectroscopic evaluation - Degree of conversion of a packable, hybrid and flowable composite resin cured using a light transmitting post
Sridhar Vishnu, Sowmya Natesh Kumar, Deivanayagam Kandaswamy, Nagendrababu Venkateshbabu
Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Maduravoyal, Chennai, India
Correspondence Address:
Sridhar Vishnu
Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College and Hospital, Maduravoyal, Chennai
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0972-0707.42279
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The introduction of light transmitting post paved the way for the composite resin to invade the root canal systems. Aim of the study was to evaluate the degree of conversion of a flowable, hybrid and packable composite resin after polymerizing the resin by using light transmitting post by using the Fourier transform infrared spectroscopy. Packable composite resin showed significantly lower degree of conversion values when compared to hybrid and flowable at the apical and middle third. Coronal third showed better conversion than middle third and apical third. Even though degrees of conversion values in the apical samples were low they fall well within the range of 50 - 70% which is considered adequate. A higher degree of conversion can be obtained for hybrid and flowable resin composite up to 14 mm length, if a light transmitting post is used along with an increased light curing time of 4 minutes. |
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