CLINICAL AND MICROBIOLOGICAL OBSERVATIONS OF EARLY POLYTETRAFLUOROETHYLENE MEMBRANE EXPOSURE IN GUIDED BONE REGENERATION - CASE-REPORTS IN PRIMATES

PREMATURE MEMBRANE EXPOSURE at one week is described in 3 Macaca mulat ta monkeys as part of a sequence of experiments on guided bone regener ation. Clinical sequelae include redness, edema, and tissue slough. Ba cteroides fragilis, Streptococcus pneumoniae, Prevotella intermedia, a nd Staphylococcus intermedius were detected at all prematurely exposed sites, Pseudomonas maltophilia, Strept. pneumoniae, and P. intermedia were the predominant organisms detected and consisted of more than 10 % of the total anaerobic count.