An in vitro Comparison of Dentin pH Changes Following Canal Dressing Among Calcium Hydroxide Paste in Combination with Normal Saline and A Commercial Calcium Hydroxide Paste

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Thalerngsak Samaksaman
Subin Puasiri
Uthaiwan Arayatrakoollikit
Kanyarat Tungputsa
Witsarut Sittisorn
Ruethaikan Wilaihorm
Pinpana Thaweesit

Abstract

The objective of this in vitro study was to compare dentin pH following canal dressing. Using 45 extracted human lower premolar teeth. The teeth were randomly divided into 2 experimental groups: Group 1 - calcium hydroxide-normal saline solution paste; Group 2 - commercial calcium hydroxide paste (Endocal®); Group 3 - and 1 control group, in which there was no application of the intracanal medication (15 teeth per group). The dentin pH in the solution was measured 0, 1, 7, 14, 21 and 28 days after canal dressing to determine the diffusion of hydroxide ion through the dentinal tubules. The result found that the dentin pH for each group at the same time. The group of commercial calcium hydroxide paste (Endocal®) had a highest dentin pH and the difference was statistically significant (P-value < 0.05) from other groups on the first day of medication. However, no significant difference was found among the dentin pH at 1, 7, 14, 21 and 28 days after canal dressing between calcium hydroxide-normal saline solution paste group and commercial calcium hydroxide paste (Endocal®). Therefore, the use of commercial calcium hydroxide paste (Endocal®) for Microbial microbe reduction is recommended. When fast-acting intracanal Medication is needed. However, both calcium hydroxide-normal saline solution and commercial calcium hydroxide paste (Endocal®) could be used for long term medication of less than 28 days.

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1.
Samaksaman T, Puasiri S, Arayatrakoollikit U, Tungputsa K, Sittisorn W, Wilaihorm R, Thaweesit P. An in vitro Comparison of Dentin pH Changes Following Canal Dressing Among Calcium Hydroxide Paste in Combination with Normal Saline and A Commercial Calcium Hydroxide Paste. Khon Kaen Dent J [Internet]. 2019 Jun. 27 [cited 2023 Feb. 5];22(1):34-42. Available from: https://he01.tci-thaijo.org/index.php/KDJ/article/view/172752
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