The correlation between laboratory and clinical wearing resistance of resin composites
- VernacularTitle:复合树脂耐磨性能实验室检测方法的临床相关性评价
- Author:
Jianmin HAN
;
Gang ZHENG
;
Hong LIN
;
Rui ZHENG
- Publication Type:Journal Article
- Keywords:
Wear;
Composite resin;
Correlation;
Wear simulator
- From:
Journal of Practical Stomatology
1995;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To discuss the feasibility of a new method to evaluate wearing simulators,and to investigate the feasibility of specimens' depth loss as the index of the materials' wearing resistance.Methods: Two commercial composite resins(SureFil and Spectrum TPH) were selected.The specimens were subjected to 100,200,300,400,500,800,1200,1 600 and 2 000 cycles wearing in the CW3-1 wearing system.Wearing was determined quantitatively by weighing the specimen and measuring the height of the specimen,volume loss(mm 3) and height loss(?m) were calculated.Previous clinical study results on SureFil and Spectrum TPH conducted at Hong Kong University were used to examine the relationship between clinical wearing and laboratory wearing.The difference of the wearing resistance between the two materials and the Pearson correlation of the height loss and the volume loss were analyzed by statistical software SPSS 15.0.Results: The wearing resistance of the two materials was significant difference(P
