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Journal of Research in Medical Sciences، جلد ۵، شماره ۳، صفحات ۰-۰
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عنوان انگلیسی THE BACTERIOLOGIC EVALUATION OF ANTIBACTERIAL EFFECT: NORMAL SALINE 5.25% AND 0.5%, SODIUM HYPOCHLORITE AND CALCIUM HYDROXIDE
چکیده انگلیسی مقاله Introduction: The purpose of this invitro investigation was to compare the anti-bacterial effect of normal saline and sodium hypochlorite (5.25 percent and 0.5 percent) with calcium hydroxide used as intra canal dressing used in different time periods. Methods: 180 single-rooted freshly extracted teeth were selected. The crowns were resected of CEJ and the canal were flared to the same length using a number one Gates-Glidden. A suspension of selected strict and facultative anaerobic bacteria was placed inside the canals and incubated in anaerobic condition for 24 hours. Then the teeth were randomly assigned to 9 groups. Results: Group 1. Negative control; group 2. Positive control; group 3. instrumented using normal saile; group 4. instrumented using 0.5 percent sodium hypochlorite; grooup 5. instrumentation using 5.25 percent sodium hypochlorite; group 6. After instrumentation, 10 min. of calcium hydroxide was placed; group 7. after instrumentation 24h of calcium hydroxide was placed; group 8. After instrumentation 48h of calcium hydroxide was placed; group9. After instrumentation a week of calcium hydroxide was placed. Then paper points were used to get samples in each group. The samples incubated in anaerobid condition for 48 hours. The TSB turbidity was compared to mcfarland"s scale. Discussion: The results of this study indicates: Sodium hypochlorite in both concentrations were significantly more effective than normal saline. The one week calcium hydroxide group was significantly more effective than all other groups and was comparable to negative control group. The 24h and 48h calcium hydroxide groups did not have significant differences with each other or with the sodium hypochlorite groups. The 10 min. calcium hydroxide group was only comparable to normal saline group.
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نویسندگان مقاله a r فرهاد | a r farhad
endodontics dept. , dentistry school, isfahan university of medical sciences and health services, isfahan

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

a آوایی | a avaei


s z فرهاد | s z farhad


f پورسینا | f poursina


نشانی اینترنتی http://jrms.mui.ac.ir/index.php/jrms/article/view/3536
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نوع مقاله منتشر شده Original Articles
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