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Journal of Dental Research
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Shallow Fluorine Depth Profiles of Cementum in Periodontal Disease—A Pilot Study

A.W. Crawford

School of Physical Sciences, Flinders University, Adelaide 5042, South Australia

W.J. Sampson

Department of Dental Health, The University of Adelaide, Adelaide 5001, South Australia

H.J. De Bruin

School of Physical Sciences, Flinders University, Adelaide 5042, South Australia

A nuclear resonant reaction depth profiling technique was used to analyze elemental fluorine distribution in the first 20 µm of human dental cementum. A pilot sample of six periodontally-involved teeth indicated greater levels of fluorine in exposed cementum (0.9->2.4%) compared to cementum apical to the zone of epithelial attachment (0.4->1.1%). Furthermore, the exposed cementum appeared to have fluorine levels within the surface 5 µm comparable to the hyper-mineralized layer previously reported by x-ray diffraction and microprobe techniques. The nuclear resonant reaction is a nondestructive technique which yields useful information of surface elemental distribution as a function of depth, and may be regarded as a potential means of analyzing changes in the inorganic constitution of cementum during various physico-chemical pre-treatments.

Journal of Dental Research, Vol. 62, No. 7, 806-810 (1983)
DOI: 10.1177/00220345830620070601
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