Erosion Process of a Dental Polycarboxylate Cement
نویسندگان
چکیده
منابع مشابه
Erosion process of polycarboxylate cements in organic acids.
The amounts of Zn and Mg eluted from the zinc polycarboxylate cement into acetic, lactic and citric acids increased with an increase in the formation constant of the acid-Zn or -Mg complexes. The erosion process consisted of two processes, namely, dissolution of the unreacted cement powder and decomposition of the matrix. The matrix was remarkably eroded by 0.01M citric acid which formed stable...
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Erosion of a glass ionomer cement in acetic (AA), lactic (LA), citric (CA) and hydrochloric acids (HA) was investigated by means of chemical analysis, SEM observation and infrared (IR) spectroscopy. The larger stability constants of the complex between the acid anions and Al or Ca, or the lower the pH of the acid solutions, the more Al, Ca, Na, Si and F were leached. SEM observation revealed th...
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In 6 dogs, experiments were performed to determine the tissue reaction of the dental pulp at the 7, 30 and 60 days after direct contact of the pulp with the obturation material through a microcommunication orifice with diameter up to 1 mm, formed in the fundic part of an experimental cavity. Capping of 36 mandibular premolars with traumatically exposed pulp was carried out. On the exposed pulp,...
متن کاملA prospective clinical study of polycarboxylate cement in periapical surgery
OBJECTIVE To evaluate the clinical efficacy of polycarboxylate cement as retrograde filling material. DESIGN A prospective clinical study was made of 25 patients subjected to periapical surgery with ultrasound and magnifying loupes, in which polycarboxylate cement was used as retrograde filling material. Measurements were made of the area and diameter of the lesions pre- and postoperatively, ...
متن کاملDental Erosion
1Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, 17012-901 Bauru SP, Brazil 2Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, 8032 Zurich, Switzerland 3Department of Cariology and Gerodontology, Faculty of Dentistry, University of Oslo, 0455 Oslo, Norway 4Department of Conservative and Preventive Dentistry, Dental Clinic...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Association, Japan
سال: 1987
ISSN: 1884-2127,0009-0255
DOI: 10.2109/jcersj1950.95.1104_764