Aerosols generated by high-speed handpiece and ultrasonic unit during endodontic coronal access alluding to the COVID-19 pandemic.
Sci Rep
; 12(1): 4783, 2022 03 21.
Article
in English
| MEDLINE | ID: covidwho-1751762
ABSTRACT
To investigate the dispersion and contamination of aerosols generated during coronal access performed by high-speed handpiece and ultrasonic device. To measure the aerosol dispersion, a red dye or an Enterococcus faecalis culture broth inside the bottle of the water system of the dental and ultrasonic unit were used. Bovine extracted teeth were allocated in six groups according to the coronal access G1 diamond bur in high-speed handpiece (HS) with aspiration (A); G2 ultrasonic (US) inserts with aspiration; G3 combined coronal access with HS and US with aspiration; and G4, G5, and G6 were performed without aspiration (WA). The distance reached by the aerosol with the dye was measured in centimeters, and for environment contamination, agar-plates were arranged at standardized distances for counting colony-forming units (CFU/mL). The ANOVA followed by the Tukey tests were applied (α = 0.05). The coronal access with HS generated higher aerosol dispersion and contamination, even with simultaneous A (P < 0.05), while US generated less aerosol even WA (P < 0.05). The aspiration did not reduce the aerosol statistically. HS is a great source of aerosols in dental clinic during the coronal access and the use of US device should be encouraged.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Ultrasonics
/
COVID-19
Type of study:
Experimental Studies
/
Randomized controlled trials
Limits:
Animals
/
Humans
Language:
English
Journal:
Sci Rep
Year:
2022
Document Type:
Article
Affiliation country:
S41598-022-08739-3
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