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How Does Fluoride Concentration in the Tooth Affect Apatite Crystal Size?

¹ Faculty of Dentistry, University of Toronto;
² Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Room 840, Toronto, ON M5G 1X5, Canada;
³ Department of Chemical Engineering and Applied Chemistry, University of Toronto;
⁴ Department of Dentistry, Sir Mortimer B. Davis-Jewish General Hospital; and
⁵ Faculty of Dentistry, McGill University;

View larger version (37K): [in a new window]   Figure 1. Schematic of sample preparation. First, we prepared two sections (2 mm apart) in the central part of the teeth (in the buccal-lingual direction following the coronal-apical axis), dividing each tooth into 3 sections (mesial, central, and distal). The coronal-central part was then further sectioned to provide buccal and lingual samples. We used a scalpel under a microscope to separate the enamel and dentin tissues.

View larger version (19K): [in a new window]   Figure 2. Schematic of a hydroxyapatite crystallite.