Berlin 2008 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 18: Biomaterials
BP 18.2: Vortrag
Mittwoch, 27. Februar 2008, 16:15–16:30, PC 203
Structural effects on enamel through fluoridization: an XPS and AFM study — •Christian Zeitz1, Frank Müller1, Matthias Hannig2, Karin Huber2, Stefan Hüfner1, and Karin Jacobs1 — 1Saarland University - Department of Experimental Physics, 66123 Saarbrücken, Germany — 2Saarland University Hospital - Department of Conservative Dentistry, Parodontology and Preventive Dentistry, 66421 Homburg/Saar, Germany
Enamel, the hardest material in the human body, has been a research topic for many years. The material shows outstanding resistance against abrasion, but it is relatively easy affected by agents of low pH value. The resistance against acids can be increased by fluoridization with an adequate fluoride containing solution. However, it is unknown up to now, what exactly happens during this process.
The aim of our study is to clarify the reactions during fluoridization and to reveal structural changes that can be referred to the treatment. To accomplish this, we perform AFM and XPS measurements on natural teeth. Moreover, to simplify the system, we also study chemical and structural changes on hydroxylapatite pellets.