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Volume 4 , Issue 4
Winter 1989

Pages 321-326

In Vivo Plaque Formation on Implant Materials

Gohichiroh Nakazato, DDS/Hironori Tsuchiya, PhD/Masaru Sato, DDS, PhD/ Mutsuo Yamauchi, DDS, PhD

PMID: 2561743

Plaque formation was studied in vivo by setting different implant materials on gingiva. The number of adhering viable bacteria depended on material surface properties 4 hours after setting, but not 48 hours after setting. The formation of pellicle-like thin layers and subsequent covering by lamellarly formed plaque were observed on the surfaces of all materials. Streptococcus species were predominant at the 4-hour setting time and anaerobes increased at the 48-hour setting time; this was common to all materials. The results indicate that surface properties of the implants influence early bacterial adherence, but do not influence bacterial flora or plaque maturation. (INT J ORAL MAXILLOFAC IMPLANTS 1989;4: 321-326.)

Key words: implant materials, in vivo, plaque

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