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Nam, Park, and Choi: The effect of calcium hydroxide on post-treatment pain
Original Article
Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2006; 31(2): 86-95.

Published online: 31 March 2006

DOI: https://doi.org/10.5395/JKACD.2006.31.2.086

The effect of calcium hydroxide on post-treatment pain

Wook Nam, Sang-Hyuk Park, Gi-Woon Choi

Department of Conservative Dentistry, Division of Dentistry, Graduate School, Kyunghee University, Korea.

Corresponding Author: Gi-Woon Choi. Dept. of Conservative Dentistry, Division of Dentistry, Graduate School, Kyunghee University, 1, Hoegi Dong, Dongdaemun Gu, Seoul, Korea, 130-702. Tel: 82-2-958-9336, gwchoi@khu.ac.kr

Received 23 August 2005       Revised 6 January 2006       Accepted 10 January 2006

Copyright © 2006 Korean Academy of Conservative Dentistry

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this clinical study is to assess whether calcium hydroxide as an intracanal medication affects post-treatment pain in teeth especially odontogenic pain which comes from inflammation of the pulp and periradicular tissues when compared with no intracanal medication.
From 213 patients who has been treated 237 root canals due to significant pain (moderate-to-severe), we recorded their age, sex, treated tooth, degree of pain, pre-operative states of the tooth. We classified patients into 2 test group; Group 1 (not gain intracanal Ca(OH)2), Group 2 (gain intracanal Ca(OH)2). Through the survey from the patients, we let them write down the occurrence and degree of post-treatment pain in 4hours, 2days, 7days after treatment as none, mild, moderate or severe. The followings were evaluated; the overall incidence of flare-ups, the overall incidence of post-treatment pain in each group at each time period, the incidence of post-treatment pain in each group at each time period as related to pre-operative states of the teeth. These were compared statistically with Chi-square analysis (p < 0.05).
Under the condition of this investigation, no difference was observed in the incidence of post-treatment pain between the two groups. Therefore, Ca(OH)2 as intracanal medication had no effect on preventing or decreasing the post-treatment pain.

Keywords: Calcium hydroxide, Post-treatment pain, Intracanal medication, Inflammation, Root canal treatment, Degree of pain

Figures and Tables

Table 1
Endodontic treatment chart for surveying the post-treatment pain
jkacd-31-86-i001

†RCT: root canal treatment

RE: re-treatment

Table 2
The incidence of flare-ups*
jkacd-31-86-i002

*Not statistically significant (p > 0.05).

Table 3
The incidence of post-treatment pain at different time periods
jkacd-31-86-i003

*Statistically significant (p < 0.05).

Table 4
The incidence of post-treatment pain related to apical lesion
jkacd-31-86-i004

*Statistically significant (p < 0.05).

Table 5
The incidence of post-treatment pain related to pus discharge
jkacd-31-86-i005

*Statistically significant (p < 0.05).

Table 6
The incidence of post-treatment pain related to swelling
jkacd-31-86-i006

*Statistically significant (p < 0.05).

Table 7
The incidence of post-treatment pain related to fistula
jkacd-31-86-i007

*Statistically significant (p < 0.05).

Table 8
The incidence of post-treatment pain related to pulpal diagnosis
jkacd-31-86-i008

*Statistically significant (p < 0.05).

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