Using the results of physical and chemical researches and mechanical tests of the Pd-Au-Cu-Sn system alloys, a new palladium-based alloy has been chosen and studied in detail. It has a higher plasticity and a lower ha...Using the results of physical and chemical researches and mechanical tests of the Pd-Au-Cu-Sn system alloys, a new palladium-based alloy has been chosen and studied in detail. It has a higher plasticity and a lower hardness than the Palladent alloy, widely used in prosthetic dentistry: its hardness is lower than 300 MPa, and its specific elongation is 10%~14 %. At the same time, such important practical characteristics of the alloys as the strength of adhesion to ceramics and thermal expansion coefficient are almost similar.展开更多
The concepts and progress of evidence-based dentistry were introduced in this critical review. An extensive PubMed search was conducted to provide sound evidences for some frequently encountered problems in prosthodon...The concepts and progress of evidence-based dentistry were introduced in this critical review. An extensive PubMed search was conducted to provide sound evidences for some frequently encountered problems in prosthodontic daily practice. Conlusively, it is important for prosthodontists to keep current by looking for efficient ways of interpreting high quality evidences to clinical practice.展开更多
文摘Using the results of physical and chemical researches and mechanical tests of the Pd-Au-Cu-Sn system alloys, a new palladium-based alloy has been chosen and studied in detail. It has a higher plasticity and a lower hardness than the Palladent alloy, widely used in prosthetic dentistry: its hardness is lower than 300 MPa, and its specific elongation is 10%~14 %. At the same time, such important practical characteristics of the alloys as the strength of adhesion to ceramics and thermal expansion coefficient are almost similar.
文摘The concepts and progress of evidence-based dentistry were introduced in this critical review. An extensive PubMed search was conducted to provide sound evidences for some frequently encountered problems in prosthodontic daily practice. Conlusively, it is important for prosthodontists to keep current by looking for efficient ways of interpreting high quality evidences to clinical practice.
