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Journal of Indian Society of Pedodontics and Preventive Dentistry Official publication of Indian Society of Pedodontics and Preventive Dentistry
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Year : 1999  |  Volume : 17  |  Issue : 3  |  Page : 101-6

Effect of endodontic smear layer and various solvents on the calcium ion diffusion through radicular dentin--an in vitro study.


Dept of Pedodontics & Preventive Dentistry, D.A.V. (C) Dental College & Hospital, Yamuna Nagar

Correspondence Address:
N Srivastava
Dept of Pedodontics & Preventive Dentistry, D.A.V. (C) Dental College & Hospital, Yamuna Nagar

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Source of Support: None, Conflict of Interest: None


PMID: 10863500

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External root resorption and ankylosis remains the major cause of failure of replanted teeth. This study was conducted to explore the different ways to increase the pH of periradicular area in order to overcome the problem of root resorption and ankylosis. 60 freshly extracted permanent anteriors were used after removing the crown at CEJ. After biomechanical preparation Ca (OH)2 was injected and assays were done using EDTA, Citric and tannic acid Assays were repeated. Calcium diffusion and pH in the root exterior was measured using spectrophotometer. Results showed that dentin is permeable to calcium & hydroxyl ions and placement of Ca (OH)2 in the canal resulted in its increased recovery and alkaline pH periradicularly. Smear layer removal did not result in significant increase in Ca++ recovery or alkaline pH however combination of EDTA & NaOCl was found best than the other two.






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