Bacterial colonization patterns in adult periodontitis: a morphological study
Abstract
THE PURPOSE OF THIS STUDY WAS TO IDENTIFY -BY USE OF DARK FIELD MICROSCOPY- MICROBIAL MORPHOTYPES IN DEEP POCKETS OF PATIENTS WITH ADULT PERIODONTITIS AND TO SEEK A PATTERN IN THEIR COLONIZATION SEQUENCE. THE CORRELATION BETWEEN THREE CLINICAL PARAMETERS (EDEMA, ERYTHEMA AND BLEEDING ON PROBING) AND THE PRESENCE OFMICROBIAL MORPHOTYPES WAS ALSO STUDIED. SIXTY ADULT PATIENTS (26 MALE AND 34 FEMALE) WERE USED, WITH MODERATE TO ADVANCED PERIODONTITIS AS DETERMINED BY CLINICAL AND RADIOGRAPHICAL CRITERIA. A SITE FOR MICROBIAL SAMPLING WAS SELECTED INEACH PATIENT WITH POCKET DEPTH EXCEEDING 6 MM AND RADIOGRAPHIC EVIDENCE OF BONE LOSS. MORPHOTYPE INDENTIFICATION WAS BASED UPON THE CRITERIA ESTABLISHED BY LISTGARTEN AND HELLDEN (1978) AS MODIFIED BY OFFENBACHER ET AL (1985). MICROBIALMORPHOTYPES WERE ENUMERATED UNDER OIL AT 1000 MAGNIFICATION ON AN OLYMPUS BH-2MICROSCOPE USING DARKFIELD OPTICS. EXAMINATION OF THE CLINICAL PARAMETERS REVEALED THAT 86,6% OF THE SITES WERE POSITIVE FOR EDEMA, 80 ...
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