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|Title:||pH changes in root dentin after intracanal placement of improved calcium hydroxide containing gutta-percha points||Authors:||Ho, C.H.
|Issue Date:||2003||Citation:||Ho, C.H.,Khoo, A.,Tan, R.,Teh, J.,Lim, K.C.,Sae-Lim, V. (2003). pH changes in root dentin after intracanal placement of improved calcium hydroxide containing gutta-percha points. Journal of Endodontics 29 (1) : 4-8. ScholarBank@NUS Repository.||Abstract:||The in vitro pH changes in root dentin over a period of 2 weeks was investigated in 48 extracted bicuspids after intracanal placement of either Roeko Calcium Hydroxide Plus Points, aqueous calcium hydroxide paste, or gutta-percha points (control group) after root canal preparation. Microelectrodes were placed in outer and inner root dentin at cervical, middle, and apical thirds of the root to measure the pH at 1 h, 2 h, 3 h, 1 day, 3 days, 7 days, and 14 days. Roeko Calcium Hydroxide Plus Points reached a peak inner dentine pH of 11.67 and a peak outer dentine pH of 10.82 at 3 h. In addition, Roeko Calcium Hydroxide Plus Points maintained an outer dentine pH above 9.5 for approximately 2 days, whereas the aqueous calcium hydroxide paste did not reach this pH. However, the alkalinity in dentin with Roeko Calcium Hydroxide Plus Points was maintained for 7 days only, whereas aqueous calcium hydroxide paste maintained an alkaline environment throughout the 2-week period. Copyright © 2002 by The American Association of Endodontists.||Source Title:||Journal of Endodontics||URI:||http://scholarbank.nus.edu.sg/handle/10635/46934||ISSN:||00992399|
|Appears in Collections:||Staff Publications|
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