PubMed · 15233042
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Amid I Ismail. 2004. Evidence-based dentistry.. https://pubmed.ncbi.nlm.nih.gov/15233042/
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This final instalment in the literary series deals with the relationship between general and oral health and methods of maintaining good oral hygiene.
Percutaneous contact with contaminated blood is the principal mode of transmission of the hepatitis C virus (HCV). However, the diagnosis of infection in patients in whom no parenteral risk factor can be identified allows speculation on the existence of other routes of transmission. In the field of dentistry, the role of saliva has still not been defined as a potential vehicle for infection nor the role of dental treatment as a possible occult factor in the sporadic transmission of hepatitis C. HVC-RNA is detectable in the saliva of over 50% of patients with chronic hepatitis C. The infectivity of the HVC particles detected in the saliva has not been determined, though it may be deduced from epidemiological studies that their potential for transmission, if it exists, is extremely limited. There has been no documented case of HVC transmission in a dental clinic. Studies which propose a history of dental treatment as a risk factor for HVC infection have not achieved conclusive results. The age distribution of the prevalence of HVC could indicate that a risk of iatrogenic transmission existed in the past, before the systematic application of universal barriers. The transmission of HVC in dental clinics may be considered a very infrequent occurrence as long as the norms for the control of cross-infection are respected.