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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 4 (1989), No. 4     1. Dec. 1989
Int J Oral Maxillofac Implants 4 (1989), No. 4  (01.12.1989)

Page 321-326


In Vivo Plaque Formation on Implant Materials
Nakazato, Gohichiroh / Tsuchiya, Hironori / Sato, Masaru / Yamauchi, Mutsuo
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.

Keywords: implant materials, in vivo, plaque