Journal of Indian Society of Periodontology
Journal of Indian Society of Periodontology
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Year : 2011  |  Volume : 15  |  Issue : 3  |  Page : 228-234

Efficacy of a root conditioning agent on fibrin network formation in periodontal regeneration: A SEM evaluation

1 Department of Periodontics, Institute of Dental Education and Advance Studies, Gwalior, Madhyapradesh, India
2 Department of Periodontics, Sri Ramachandra Dental College and Hospital, Sri Ramachandra Medical College and Research Institute (Deemed University), Porur, Chennai, Tamilnadu, India

Correspondence Address:
Rajender Amireddy
Department of Periodontics, Institute of Dental Education and Advance Studies, Gwalior - 474 002, Madhya Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-124X.85665

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Background: Even though numerous biomaterials have been devised and employed for periodontal regeneration, it should be well understood that the root surface receptiveness to clot formation and maintenance during initial periodontal wound healing, decides the nature of the connective tissue attachment. So this study was carried out with the prime objective of assessing the initial wound healing events occurring in vivo after the application of citric acid on to the root surfaces during periodontal regenerative therapy. Materials and Methods: Thirty-two human teeth were used for this in vitro study. Two dentin blocks each measuring 4 × 2 × 1 mm were made from each tooth. These dentin blocks were planed and treated differently with Phosphate Buffered Saline (PBS), citric acid, PBS and fresh human blood, citric acid and fresh human blood and were segregated into eight groups. Finally all the dentin blocks were processed and subjected to a scanning electron microscope study. Results: In PBS-treated samples, the dentin surface was irregular corresponding to smear layer and the dentinal tubule openings were obscured. Whereas, in those treated with citric acid revealed a smooth dentin surface devoid of smear layer and the dentinal tubular openings were clear. Further samples that were treated with PBS plus blood showed little or no fibrin network formation whereas with those citric acid plus blood showed a fine thick fibrin network formation adhered to dentinal surface. Conclusion: The results of this present in vitro study suggests that use of citric acid as a root conditioning agent has a beneficial effect on initial wound healing events, which are critical for periodontal regenerative therapies.

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