THE IMPORTANCE OF CROSS –CONTAMINATION CONTROL WITH LAB MADE RESTORTIONS
Abstract
The infection control measurements and guidelines should be
strongly encouraged.
to ensure aseptic practice in dental clinics and laboratories to avoid cross
contamination .The ecologic relationships between micro- organisms and humans are
exemplified in the oral flora . The microflora of the oral cavity consist of
bacteria, yeasts, certain fungi, , and mycoplasmas,.. It’s estimated that
500-600 different kinds of bacteria thrive on mucus and food remnants in
the mouth. A predominant member of this community is the Gram
positive bacterium Streptococcus mutans. The principal potential route of
transmission from the patient to the dental technician is through
contaminated impressions, casts and prostheses. It has been
demonstrated that microorganisms can be recovered from casts. It would
seem essential therefore, that impressions should be disinfected by the
clinician or a suitably protected technician prior to the initiation of any
laboratory procedures.
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References
-Rueda LJ, Sy-Munoz JT, Naylor WP, Goodacre CJ, Swartz MI. The
effect of using custom or stock trays on the accuracy of gypsum casts. In
J Prosthodont 1996; 9: 367-37
-Rowe AHR, Forrest JO, Dental impressions- the probability of
contamination and a method of disinfection. Br Dent J. 1978; 145: 184-
-. Bergman B. Disinfection of prosthodontic impression materials: a
literature review. Int J Prosthodont. 1989; 2: 537-542.
-. Matyas J, Dao N, Caputo AA, Lucatorto FM. Effects of disinfectants
on dimensional accuracy of impression materials. J Prosthet Dent. 1990;
:25-31
-. Peutzfeldt A, Asmussen E. Effect of disinfecting solutions on
accuracy of alginate and elastomeric impression materials. J Dent Res.
; 97: 470- 475
-. Storer R, McCabe JF. An investigation of methods available for
sterilizing impressions. Br Dent J. 1981;151 : 217-219.
-Donald L.Mitchell, Nadjeh M.Hariri, Manville G.Duncanson, Nancy
L.Jacobsen And Rodericck E.McCallum (1997) Quantitative Study Of
Bacterial Colonization Of Dental Casts Journal Of Prosthetic Dentistry
518-21
-Bagg J, Macfarlane JW, Poxton IR, Miller CH, Smith A (2001)
Essentials of Microbiology For Dental Students Oxford University
-ADA Council on Dental Therapeutics, Council on Prosthetic Services
and Dental Laboratory Relations. Guidelines for infection control in the
dental office and the commercial dental laboratory. J Am Dent Assoc.
;110(6):969-972.
-Microbial contamination of removable prosthodontic appliances from
laboratories and impact of clinical storageD. W. Williams1, N. Chamary2, M. A. O. Lewis3, P. J. Milward4 & R. McAndrew5British
Dental Journal 211, 163 - 166 (2011) Published online: 26 August 2011 |
doi:10.1038/sj.bdj.2011.675
-Clinical evaluation of the efficacy of removing microorganisms to
disinfect patient-derived dental impressions. Egusa H, Watamoto T,
Matsumoto T, Abe K, Kobayashi M, Akashi Y, Yatani H. :Department of
Fixed Prosthodontics, Osaka University Graduate School of Dentistry,
Osaka, JapanInt J Prosthodont. 2008 Nov-Dec;21(6):531-8.
-An analysis of the persistent presence of opportunistic pathogens on
patient-derived dental impressions and gypsum casts. Egusa H, Watamoto
T, Abe K, Kobayashi M, Kaneda Y, Ashida S, Matsumoto T, Yatani H.
Int J Prosthodont. 2008 Jan-Feb; 21(1):62-8.
-Antimicrobial effect of 4 disinfectants on alginate, polyether, and
polyvinyl siloxane impression materials. Al-Jabrah O, Al-Shumailan Y,
Al-Rashdan M. Int J Prosthodont. 2007 May-Jun; 20(3):299-307.
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