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  • Title: Helicobacter pylori in dental plaque of Pakistanis.
    Author: Butt AK, Khan AA, Bedi R.
    Journal: J Int Acad Periodontol; 1999 Jul; 1(3):78-82. PubMed ID: 10833287.
    Abstract:
    Helicobacter pylori is now generally accepted to play a key role in acid related and neoplastic pathology of gastroduodenal diseases. Recent reports have concluded that dental plaque is not an important reservoir for Helicobacter pylori, however, these studies did not consider the ethnic background of their subjects nor the amounts of dental plaque present. The aim of this study was to explore the association of Helicobacter pylori dental plaque colonisation in 125 males and 53 females (group I) attending a dental clinic in Pakistan. A simultaneous sample of 30 healthy volunteers with good orodental hygiene consisting of 17 males and 13 females was included as a control group (group II). Six dental plaque specimens were obtained from each subject with a sickle scaler; two were inoculated into CLO test gel and the remaining four were used to prepare cytology slides stained with Giemsa's stain. CLO test was positive in all specimens from group I, while cytology for Helicobacter pylori was positive in 173 cases in this group. One hundred and forty two cases had heavy plaque deposits and all of them were positive on cytology. In group II CLO test was positive in 20 and dental plaque cytology was positive in 7 cases. In conclusion, it is important that future studies into the prevalence of Helicobacter pylori in the oral cavity should take into account the levels of oral cleanliness and the ethnic background of the subjects.
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