A simple and effective method for addition silicone impression disinfection
The Journal of Advanced Prosthodontics
;
: 155-161, 2019.
Article
in English
| WPRIM
| ID: wpr-761409
ABSTRACT
PURPOSE:
Although dental impression disinfection is determinant to reduce the cross-infection risk, some studies have shown that, in real practice, the disinfection procedures vary considerably. Thus, the aim of this study was to evaluate the antimicrobial effectiveness and the impact on the dimensional stability of addition silicone' impressions of water wash and the most clinically used disinfection solutions 3% hydrogen peroxide, commercial disinfectant MD520 (Durr) and 1% and 5.25% sodium hypochlorite. MATERIALS ANDMETHODS:
For this investigation, dental impressions were taken on 16 volunteer dental students. The antimicrobial effectiveness of each procedure was evaluated by pour plate method. The dimensional stability was evaluated using a standardized stainless-steel model, according to ANSI/ADA nº19 specification.RESULTS:
The study results showed that water wash does not alter the dimensional stability of addition silicone impressions but doesn't reduce the microbial load of the material (P>.05). On the other hand, addition silicone disinfection by immersion with 3% hydrogen peroxide, MD520 (Durr), or sodium hypochlorite at 1% and 5.25% does not alter the dimensional stability significantly but reduces > 99.9% of the microbial load of the impressions (P<.001).CONCLUSION:
Addition silicone impressions should always be disinfected after water wash in order to reduce effectively the cross-infection risk. All disinfectants tested showed high antimicrobial efficiency without significant changes in three-dimensional shape of impressions. Hydrogen peroxide and sodium hypochlorite are of particular importance because are easily accessible in dental setting. The less explored hydrogen peroxide could be a valuable alternative for silicone impressions disinfection.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Silicon
/
Silicone Elastomers
/
Silicones
/
Sodium Hypochlorite
/
Students, Dental
/
Volunteers
/
Water
/
Disinfection
/
Disinfectants
/
Hand
Limits:
Humans
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2019
Type:
Article
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