Disinfection effect and the impact on accuracy of slightly acidic hypochlorous acid water rinsing method on dental impressions
10.3969/j.issn.1001-3733.2025.04.021
- VernacularTitle:微酸性次氯酸水喷淋对口腔印模的消毒效果及精度影响
- Author:
Xiaowen MA
1
;
Xiu'e LI
1
;
Weisi XU
1
;
Ya'jin LI
1
Author Information
1. 100085,北京大学口腔医院
- Publication Type:Journal Article
- Keywords:
Dental impression;
Slightly acidic hypochlorite water;
Disinfection;
Accuracy;
Digitization
- From:
Journal of Practical Stomatology
2025;41(4):562-564
- CountryChina
- Language:Chinese
-
Abstract:
Dental impressions contaminated by Candida albicans(C.albicans)and Streptococcus mutan(S.mutans)were used to com-pare the disinfection effects of the 2 disinfection reagents.Digital technology was used to compare the effect on accuracy of the 2 reagents.After rinsing the dental impressions with 100 mg/L slightly acidic hypochlorite water(SSHW)for 2 min,the killing log values for C.albicans and S.mutan were 3.44 and 5.26,and the bactericidal rates(％)99.96 and 100,respectively,and the root mean square(RMS)of deviation before and after disinfection was(21.40±2.88)μm.After immersing the dental impressions with 0.525％sodium hypochlorite for 10 minutes,the killing log values for C.albicans and S.mutan were 5.18 and 5.26,the bactericidal rates(％)was 100％for both.The RMS of deviation before and after disinfection was(28.50±4.25)μm.The SAHW rinsing method has good disinfec-tion effect,and has less influence on the accuracy of dental impressions.
