TITLE

Evaluation of Pen-implant Microbiota Using the Polymerase Chain Reaction in Completely Edentulous Patients Before and After Placement of Implant-Supported Prostheses Submitted to Immediate Load

AUTHOR(S)
Devides, Sueli Lobo; de Mattias Franco, Adriana Terezinha
PUB. DATE
March 2006
SOURCE
International Journal of Oral & Maxillofacial Implants;Mar/Apr2006, Vol. 21 Issue 2, p262
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: To evaluate, by means of the polymerase chain reaction (PCR), the presence of Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis, and Prevotella intermedia in the mandibular arch of completely edentulous subjects before implant placement and 4 and 6 months after the placement of mandibular implant-supported fixed prostheses. Materials and Methods: Fifteen patients had bacterial plaque collected with sterile paper points before implant placement (ie, when they were completely edentulous) and at 3 sites on the peri-implant sulci displaying the largest probing depths after placement of 5 implants. Results: For the edentulous arch, A actinomycetemcomitans was detected in 13.3% of subjects, P intermedia was detected in 46.7% of subjects, and there was no detection of P gingivalis. After 4 and 6 months of implant placement, A actinomycetemcomitans was detected in 60% and 73.3% respectively; P intermedia in 46.7% and 53.3% respectively; and P gingivalis in 46.7% and 53.3%, respectively. Discussion: Future diagnosis should not be restricted to distinguishing individuals at risk of peri-implant disease. Such individuals should be identified by the employment of microbiologic methods and knowledge of the multifactorial nature of the host response to the action of microorganisms. Conclusions: The longer the implants were in the oral cavity, the higher the occurrence of A actinomycetemcomitans, P gingivalis, and P intermedia in the peri-implant sulci of completely edentulous patients rehabilitated with mandibular implant-supported fixed prostheses was, without any clinical or radiographic evidence indicating peri-implant disease in the studied period.
ACCESSION #
36831322

 

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