head JofIMAB
Journal of IMAB - Annual Proceeding (Scientific Papers)
Publisher: Peytchinski Publishing Ltd.
ISSN: 1312-773X (Online)
Issue: 2024, vol. 30, issue1
Subject Area: Public Health
DOI: 10.5272/jimab.2024301.5414
Published online: 12 March 2024

Original аrticle
J of IMAB. 2024 Jan-Mar;30(1):5414-5418
Velina Stoeva1ORCID logoCorresponding Autoremail, Meri Hristamyan1ORCID logo, Aleksandar Atanasovski2ORCID logo,
1) Department of Epidemiology and DM, Faculty of Public Health, Medical University - Plovdiv, Bulgaria.
2) Department of Pediatric Dentistry, Faculty of Dental Medicine, Medical University - Plovdiv, Bulgaria.

Purpose: To study the level of knowledge about hand disinfection and the application of routine disinfection measures in everyday practice among dental technician students from the Medical College of Plovdiv and practicing dental technicians.
Material and methods: For the period September 2019 - January 2020, an anonymous 19-question survey was conducted among a total of 92 dental technicians. All statistical analyses were performed with SPSS version 24. A p-value below 0.05 was considered statistically significant.
Results: Of the respondents, 34.8% (n = 30) were students, and 65.2% (n = 62) were practicing dental technicians. The majority (77.2% (n = 71)) rate the hands as a factor for the transmission of microorganisms from person to person, but for 16.3% (n = 15), the hands pose a risk only if they are visibly contaminated. Only 31.5% (n = 29) disinfect their hands for the recomended 30 seconds. When working with dental impressions and dentures, 59.8% (n = 55) know that they must always be disinfected before working with them. The most commonly used preparations for disinfection of impressions are alcohols in 44.6% (n = 41), but 22.8% (n = 21) wrongly only use water and soap. Only 1/3 correctly state that the finished dentures should be disinfected before being handed to the dentist.
Conclusion: Effective communication and coordination between the dental laboratory technicians and the dental office staff are critical components of a successful infection control program related to dental care.

Keywords: dental technician, dental impression, disinfection,

pdf - Download FULL TEXT /PDF 648 KB/
Please cite this article as: Stoeva V, Hristamyan M, Atanasovski A. Study of the level of knowledge about hand disinfection and the application of routine disinfection measures among dental technicians. 2024 Jan-Mar;30(1):5414-5418. [Crossref - 10.5272/jimab.2024301.5414]

Corresponding AutorCorrespondence to: Velina Stoeva, Department of Epidemiology and DM, Faculty of Public Health, Medical University - Plovdiv; 15A, Vasil Aprilov Blvd., Plovdiv, Bulgaria;
E-mail: velina.stoeva@mu-plovdiv.bg

1. [Guidance of Ministry of Health No. 3 from 8.05.2013 for the Management and Control of Nosocomial/Hospital-Acquired Infections.] [in Bulgarian] SG No. 43 of 14. 05. 2013. Ministry of Health. 11. 05. 2013.[Internet]
2. WHO Guidelines on Hand Hygiene in Health Care: a summary. WHO. 2009. [Internet]
3. Croke L. Guideline for Hand Hygiene. AORN J. 2022 Jun;115(6):P4-P6. [PubMed]
4. Backman C, Zoutman DE, Marck PB. An integrative review of the current evidence on the relationship between hand hygiene interventions and the incidence of health care-associated infections. Am J Infect Control. 2008 Jun;36(5):333-48. [PubMed]
5. Al Mortadi N, Al-Khatib A, Alzoubi KH, Khabour OF. Disinfection of dental impressions: knowledge and practice among dental technicians. Clin Cosmet Investig Dent. 2019 May 7;11:103-108. [PubMed]
6. Volgenant CMC, de Soet JJ. Cross-transmission in the Dental Office: Does This Make You Ill? Curr Oral Health Rep. 2018; 5(4):221-228. [PubMed]
7. Melilli D, Rallo A, Cassaro A, Pizzo G. The effect of immersion disinfection procedures on dimensional stability of two elastomeric impression materials. J Oral Sci. 2008 Dec;50(4):441-6. [PubMed]
8. Melo Neto CLM, Bannwart LC, de Melo Moreno AL, Goiato MC. SARS-CoV-2 and dentistry-review. Eur J Dent. 2020 Dec;14(S01):S130-9. [PubMed]
9. Mayta-Tovalino F, Diaz-Soriano A, Munive-Degregori A, Pérez- Vargas F, Luza S, Bocanegra R, et al. Proposal for a provisional protocol for the care and identification of dental transmission routes of COVID-19 in Latin America: A literature review. J Clin Exp Dent. 2020 Oct 1;12(10):e979-90. [PubMed]
10. Infection control in the dental office. Council on Dental Materials and Devices. Council on Dental Therapeutics. J Am Dent Assoc. 1978 Oct;97(4):673-7. [PubMed]
11. Guidelines for infection control in the dental office and the commercial dental laboratory. Council on Dental Therapeutics. Council on Prosthetic Services and Dental Laboratory Relations. J Am Dent Assoc. 1985 Jun;110(6):969-72. [PubMed]
12. Infection control recommendations for the dental office and the dental laboratory. ADA Council on Scientific Affairs and ADA Council on Dental Practice. J Am Dent Assoc. 1996 May;127(5):672-80. [PubMed]
13. Kohn WG, Harte JA, Malvitz DM, Collins AS, Cleveland JL, Eklund KJ. Guidelines for infection control in dental health care settings-2003. J Am Dent Assoc. 2004 Jan;135(1):33-47. [PubMed]
14. Kugel G, Perry RD, Ferrari M, Lalicata P. Disinfection and communication practices: a survey of US dental laboratories. J Am Dent Assoc. 2000 Jun;131(6):786-92. [PubMed]
15. Marie FT, Molinari JA.  How the Dental Laboratory Provides Infection Control. Inside Dental Assisting. 2013 Mar-Apr;9(2).  [Internet]
16. Balcos C, Magda Calina Barlean MC, Bobu L, Popescu E. Evaluation of infection control knowledge and   attitudes among dental technicians in Iasi. Rom J Oral Rehabil. 2018;10(1):120-127. [Internet]
17. Elhddad AI, Beaayou SH, EL-Refadi RI, Ayyad HA. Infection Control Knowledge and Attitudes Among Dental Technicians In Benghazi City - Libya. MISJ-IJMRAAS. 2023 May-Aug;1(02):72-79. [Internet]
18. Al-Aali K, Binalrimal S, AlShedokhi A, Al Saqer E, AlHumaid M. Infection control awareness level among dental laboratory technicians, Riyadh, Saudi Arabia. J Family Med Prim Care. 2021 Apr;10(4):1540-1546. [PubMed]
19. Al Mortadi N, Al-Khatib A, Alzoubi KH, Khabour OF. Disinfection of dental impressions: knowledge and practice among dental technicians. Clin Cosmet Investig Dent. 2019 May 7;11:103-108. [PubMed]
20. Gupta S, Rani S, Garg S. Infection control knowledge and practice: A cross-sectional survey on dental laboratories in dental institutes of North India. J Indian Prosthodont Soc. 2017 Oct-Dec;17(4):348-354. [PubMed]
21. Plummer KD, Wakefield CW. Practical infection control in dental laboratories. Gen Dent. 1994 Nov-Dec;42(6):545-8. [PubMed]
22. Mushtaq MA, Khan MWU . An overview of dental impression disinfection techniques- a literature review. J Pak Dent Assoc. 2018 Oct-Dec;27(4):207-12. [Crossref]
23. Sree Iakshmi SB, Somasundram J, Geetha RV. Disinfection of Impression Material - A Review. Eur J Mol Clin Med. 2020; 7(1):978-985. [Internet]
24. Al Shikh A, Milosevic A. Effectiveness of alcohol and aldehyde spray disinfectants on dental impressions. Clin Cosmet Investig Dent. 2020 Feb 13;12:25-30<. [PubMed]
25. Vlahova AP, Kisov CK, Popova EV, Haydushka IA, Mantareva VN. A new method for photodynamic disinfection of prosthetic constructions and impressions in prosthetic dentistry. Folia Med (Plovdiv). 2012 Jan-Mar;54(1):51-7. [PubMed]
26. Upendran A, Gupta R, Geiger Z. Dental Infection Control. 2022 Aug 8. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan. [PubMed]
27. Afef A, Dorsaf T, Eya M, Lamia O, Nabiha D. Routes of Transmission and Control Protocols of COVID-19 in Dental Clinics: An Overview. Int J Drug Res Dent Sci. 2020; 2(4):73-83. [Crossref]
28. Abbas AMA, Al-Kebsi AM, Madar EM, Al-Shamahy HA. Hepatitis B Virus among Dental Clinic Workers and the Risk Factors Contributing for its Infection. On J Dent Oral Health. 2018; 1(2):1-6. [Crossref]
29. Palenik CJ, Miller CH. Recommended immunizations for dental laboratory personnel. Trends Tech Contemp Dent Lab. 1990 Nov;7(9):43-9. [PubMed]

Received: 20 October 2023
Published online: 12 March 2024

back to Online Journal