Actinomyces and the Dentobacterial Plaque

HE role of the dentobacterial plaque in the initiation of dental caries has been well established, if not well understood, for over one-half a century. There are many voids in our information pertaining to this minute, mucilaginous mass of microorganisms and salivary debris. These may be the result of a tendency to magnify effect rather than cause. Evidence for such an interpretation is afforded by the numerous methods presented, especially during the past few years, for the control of dental caries. This report presents in part the results of a cultural study of the plaque as a biologic entity. Initially, the attention of the investigation centered upon the plaque as a structure using stained sections prepared without disturbing in situ relationships. Information so obtained directed the effort toward determining the occurrence of Actinomyces and the constancy of these microorganisms in the plaque.

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