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Updated: May 29, 2026
Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 2. General Practices
Published on: October 3, 2016
[Prevention of infection transmission in dental laboratories]
Lucia Bârlean1, I Dănilă, Iulia Săveanu
1Universitatea de Medicină şi Farmacie Gr. T. Popa Iaşi Facultatea de Medicină Dentară, Disciplina de Prevenţie Oro-Dentară.
Unlabelled:
The professional activity in a dental laboratory is associated with a high risk for infection transmission through the manipulation of impressions and prostheses contaminated with patients' saliva and blood.
Aim:
To assess the compliance of dental technicians in lasi town dental laboratories with the methods used for preventing infection transmission in their practices.
Material And Methods:
This questionnaire-based survey included 61 dental technicians aged 22 to 58 years from 29 dental laboratories. The 17 questions were related to the protection equipment, air ventilation, and disinfection of surfaces, instruments, impressions, and prostheses. SPSS 14 system, Chi-Square test were used for data analysis, and the levels of statistical significance were set at p < 0.05.
Results:
90.2% of the subjects claim the need of prosthetic items disinfection upon arrival at the laboratory from the dental office (p < 0.05). The protection equipment is used by 49.1% of the dental technicians included in this survey (full equipment 18.0%, safety glasses 45.9%, mask 37.7%, rubber gloves 19.6%). 59.1% of the laboratories are provided with air ventilation, while surface disinfection is common practice in 85.2%. Of the study subjects 62.1% disinfect the impressions, 26.1% the final prosthesis, and 25.0% disinfect the interocclusal registrations (p < 0.05).
Conclusions:
Educational programs aimed at increasing dental technicians' awareness of infection control by adopting the most effective prevention measures are essential for reducing the incidence of technicians, dentists, and patients; exposure.
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