Research Article

Infection Control Mechanisms Employed by Dental Laboratories to Prevent Infection of their Dental Technicians/Technologists

Kilimo C Sammy* and Simiyu N Benjamin

Published: 30 November, 2016 | Volume 1 - Issue 1 | Pages: 001-011

Objective: The aim of the study was to determine the compliance to infection control of various dental laboratories in Durban.

Study design: This was a qualitative survey.

Setting: Dental laboratories in Durban area, South Africa.

Subject: Registered laboratory technicians.

Study methodology: Convenient random sampling method was used.

Results: There was poor compliance to infection control procedures by most dental laboratories. Majority, 66.67%, of the dental laboratories relied on dental clinics for disinfection of dental impressions; therefore, they did not disinfect the impressions. On the other hand, only 33.33% carried out disinfection of dental impressions on their own. A high number (53.3%) of the respondents had disinfection areas within their dental laboratories, 6.7% had no disinfection areas while 40% depended upon dental clinics for all disinfections. About 60% of the dental technicians had valid vaccinations against Hepatitis B Virus while 40% had no vaccination against HBV.

Conclusion: The results of this study indicated that there was substantial nonconformity to infection control measure in all dental laboratories. There should be comprehensive inspection of dental laboratories prior to licensing and thereafter by the South African Dental Technician Council’s inspectors to ensure that all dental laboratories comply with the various infection control measures.

Read Full Article HTML DOI: 10.29328/journal.johcs.1001001 Cite this Article Read Full Article PDF


Infection Control; Dental Laboratory Technicians; Dental Laboratories; Dental Impressions


  1. Miller CH. Infection control. Dent Clin North Am. 1996; 40: 437-456. Ref.: https://goo.gl/cFmEUm
  2. Cottone JA, Terezhalmy GT, Molinari JA. Practical Infection Control in Dentistry. 2nd edition. USA. 1996; Williams &Wilkins. Ref.: https://goo.gl/nexrVc
  3. Verran J, Kossar S, McCord JF. Microbiological study of selected risk areas in dental technology laboratories. J Dent. 1996; 24: 77-80. Ref.: https://goo.gl/oOZBkZ
  4. Dental Laboratory Relationship Working Group of the Organization for Safety and Asepsis Procedures (OSAP). OSAP Position Paper: Laboratory Asepsis. 1998. Ref.: https://goo.gl/HolAzn
  5. Infection control recommendations for the dental office and the dental laboratory. Council on Dental Materials, Instruments, and Equipment. Council on Dental Practice. Council on Dental Therapeutics. J Am Dent Assoc. 1998; 116: 241-248. Ref.: https://goo.gl/Mw3ZPM
  6. Al-Kheraif AA, Mobarak FA. Infection control practice in private dental laboratories in Riyadh. Saudi Dental Journal. 2008; 20: 163-169. Ref.: https://goo.gl/WjTYmb
  7. http://www.cdc.gov. Accessed on 01/09/2010.
  8. Porter SR, Peake G, Scully C, Samaranayake LP. Attitudes to cross-infection measures of UK and Hong Kong patients. Br Dent J. 1993; 175: 254-257. Ref.: https://goo.gl/RhQFxY
  9. Twomey JO, Abdelaziz KM, Combe EC, Anderson DL. Calcium hypochlorite as a disinfect- ing additive for dental stone. J Prosthet Dent. 2003; 90: 282-288. Ref.: https://goo.gl/dzlw3P
  10. USAF Guidelines for Infection Control in Dentistry, September 2004. Available from: http://www.brooks.af.mil/dis/infcontrol.htm.
  11. http://moderndentalus.com. Accessed on 01/08/2016.
  12. CDC Guidelines for infection control in dental health-care settings-2003. MMWR 2003. 52 (No. RR-17). Ref.: https://goo.gl/BBOzr7
  13. Kugel G, Perry RD, Ferrari M, Lalicata P. Disinfection and communication practices: a survey of U. S.dental laboratories. J Am Dent Assoc. 2000; 131: 786-792. Ref.: https://goo.gl/OtrM8g
  14. Lepe X, Johnson GH, Berg JC. Surface character- istics of polyether and addition silicone impression mate- rials after long-term disinfection. J Prosthet Dent. 1995; 74: 181-186.Ref.: https://goo.gl/6DOs9e
  15. Croser D, Chipping J. Cross Infection Control in General Dental Practice: A practical guide for the whole dental team. London: Quintessence. 1989.
  16. Johnson GH, Drennon DG, Powell GL. Accuracy of elastomeric impressions disinfec- ted by immersion. J ADA. 1998; 116: 525-530. Ref.: https://goo.gl/ErVG7s
  17. Anusavice KJ. Philip science of dental materials, 11th Edition. London: Saunders 2003.
  18. Sudeshni N, Punkaj G. Guidelines for HIV and AIDS Management. Clinical Management and Guidelines for Dentists. Houghton: South African Dental Association (SADA) 2009.
  19. Ferreira FM, Novais VR, Simamoto PC Jr, Soares CJ, Neto AJF. Evaluation of Knowledge About Dis- infection of Dental Impressions in Several Dental Schools. Rev Odontol Bras Central. 2010; 19:285-289. Ref.: https://goo.gl/gNBMGU
  20. Sedky NA, Hamid AA, Moazen RE. Study of awareness about infection control procedures in dental laboratories and prosthodontics’ clinics in al-qassim province, kingdom of Saudi Arabia. Egyptian Dental Journal. 2013; 59: 2703. Ref.: https://goo.gl/aofhNh
  21. Al-Dwairi ZN. Infection control procedures in com- mercial dental laboratories in Jordan. J Dent Educ. 2007; 71: 1223-1227. Ref.: https://goo.gl/X0j7fR
  22. Akeredolu PA, Sofola OO, Jokomba O. Assess- ment of knowledge and practice of cross--Infection control among Nigerian dental technologists. Niger Postgrad Med J. 2006; 13: 167-171. Ref.: https://goo.gl/BXOJVZ
  23. Sehulster L, Chinn RY; CDC; HICPAC. Guidelines for environmental infection control in health- care facilities: Recommendations of CDC and the Health- care Infection Control Practices Advisory Committee (HICPAC). MMWR Recomm Rep. 2003; 52: 1-42. Ref.: https://goo.gl/1SULLP
  24. Kohn WG, Collins AS, Cleveland JL, Harte JA, Eklund KJ, et al. Guidelines for Infection Control in Dental Health-Care Settings—2003. MMWR Recomm Rep. 2016; 52: 1-61. Ref.: https://goo.gl/awqJR4


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