Influence of cementum on the demineralization and remineralization processes of root surface caries in vitro

Authors

  • Wolfram Dietz Institute of Ultrastructural Research and Clinic of Conservative Dentistry, University of Jena, Jena, Germany; Department of Pedodontics, Faculty of Odontology, Göteborg University, and Mun-H-Centre, National Orofacial Resource Centre, Göteborg, Sweden
  • Ulrike Kraft Institute of Ultrastructural Research and Clinic of Conservative Dentistry, University of Jena, Jena, Germany; Department of Pedodontics, Faculty of Odontology, Göteborg University, and Mun-H-Centre, National Orofacial Resource Centre, Göteborg, Sweden
  • Ingrid Hoyer Institute of Ultrastructural Research and Clinic of Conservative Dentistry, University of Jena, Jena, Germany; Department of Pedodontics, Faculty of Odontology, Göteborg University, and Mun-H-Centre, National Orofacial Resource Centre, Göteborg, Sweden
  • Gunilla Klingberg Institute of Ultrastructural Research and Clinic of Conservative Dentistry, University of Jena, Jena, Germany; Department of Pedodontics, Faculty of Odontology, Göteborg University, and Mun-H-Centre, National Orofacial Resource Centre, Göteborg, Sweden

DOI:

https://doi.org/10.1080/000163502760148025

Keywords:

Cementum, Demineralization, Fluoride, Remineralization, Root Caries, X-RAY Microanalysis

Abstract

The influence of the nature of the root surface on the demineralization and remineralization processes within artificial fluoride-treated caries lesions was investigated using microscopic and X-ray microanalytical methods. Traces of fluoride were detected in the outer parts (about 25 µm) of the lesions after the application of fluorides, and a high mineral content was proved for the same region by means of microanalytical calcium estimation. The location of this mineral-rich band in relation to the root surface was deeper into the root depending on the existence and thickness of a cementum layer. However, within the dentine the location and intensity of the mineral content were unaffected by the cementum. Investigation of artificial caries lesions without fluoride treatment showed the following: The degree of mineralization was kept at a higher level near the root surface in the presence of cementum. Consequently, a cementum layer gives some initial caries resistance of the root surface.

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Published

2002-01-01

Issue

Vol. 60 No. 4 (2002): Acta Odontologica Scandinavica

Section

Articles