Some Investigations on the Surface Properties of Human Exposed Cementum (Part 3)

• Published in: Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) Vol. 33; no. 3; pp. 703 - 709
• Main Authors: UEDA, Masatoshi, INADA, Yoshiki, TERANISHI, Yoshihiro, NAKAGAKI, Naoki, YAMAOKA, Akira, UEMURA, Mibu, NOSHI, Hideaki, KAMBARA, Masaki, KONISHI, Koji
• Format: Journal Article
• Language: Japanese
• Published: JAPANESE SOCIETY OF PERIODONTOLOGY 1991
• Subjects: Application of citric acid; Contact angle, Scaling; Exposed cementum; Root planing; X-ray microanalyzer; X-rayphotoelectron spectroscopy
• ISSN: 0385-0110; 1880-408X
• DOI: 10.2329/perio.33.703

This study was designed to investigate multisided scaling of exposed cementum (group S), scaling followed by application of citric acid to exposed cementum (group S+C), root planing of exposed cementum (group R) and root planing followed by application to citric acid of exposed cementum (group R+C). The results were as follows: 1. The X-ray microanalyzer values for Ca, P and Ca/P were highest in group S and lowest in group R+S. 2. Scanning electron microscope examination revealed distinct striae with the curette-type scaler in group S, and that the striae tended to be weak in group R+C. 3. The relative concentrations of the target elements Ca, P and O/P were lower in group S+C than in group S and lower in group R+C than in group R, but Ca/P valves were similar in each of the groups based on X-ray photoelectron spectroscopy. Ca, P and F binding energies of the cementum were similar in each group. 4. The contact angles in group S and in group R were similar in intact cementum, but in groups treated with citric acid it was impossible to measure because of the extremely hydrophilic sol.