Objective:Analyzing the influence of different filling methods on the microleakage of posterior teeth during the treatment of bulk resin filling.Methods:From January 2019 to January 2020,68 patients with posterior too...Objective:Analyzing the influence of different filling methods on the microleakage of posterior teeth during the treatment of bulk resin filling.Methods:From January 2019 to January 2020,68 patients with posterior tooth filling(123 teeth)in our hospital were selected and randomly assigned into three groups(A,B,and C),with 41 teeth in each group.Group A received bulk posterior teeth filling resin treatment,group B received Charisma®resin filling treatment and group C received FX-Ⅱfilling treatment.The curative effect and microleakage of posterior teeth between the groups were compared.Results:Comparison of treatment efficiency in group A(97.56%),group B(85.37%)and group C(73.17%)shows that P<0.05;comparison of microleakage value and operation time of group A,group B and group C shows that P<0.05.Conclusions:In resin filling treatment,bulk posterior tooth filling resin material should be selected for its high hardness,strong edge adhesion,and natural effects.展开更多
An experimental procedure was designed to monitor the preform thickness change real-time throughout the vacuum assisted resin infusion( VARI) process. Two kinds of liquid with different viscosity were infused with dif...An experimental procedure was designed to monitor the preform thickness change real-time throughout the vacuum assisted resin infusion( VARI) process. Two kinds of liquid with different viscosity were infused with different post-filling time. The variation of the part thickness during the VARI process was studied. And the effect of the post-filling time on the part thickness was investigated.The results indicate that the compaction behavior of the preform can be divided into three stages,and the fiber volume fraction varies with the post-filling time in a similar sinusoid form. In addition,the post-filling should be overtime for the greatest fiber volume fraction,and when the resin is infused with higher viscosity,the greatest fiber volume fraction is higher.展开更多
文摘Objective:Analyzing the influence of different filling methods on the microleakage of posterior teeth during the treatment of bulk resin filling.Methods:From January 2019 to January 2020,68 patients with posterior tooth filling(123 teeth)in our hospital were selected and randomly assigned into three groups(A,B,and C),with 41 teeth in each group.Group A received bulk posterior teeth filling resin treatment,group B received Charisma®resin filling treatment and group C received FX-Ⅱfilling treatment.The curative effect and microleakage of posterior teeth between the groups were compared.Results:Comparison of treatment efficiency in group A(97.56%),group B(85.37%)and group C(73.17%)shows that P<0.05;comparison of microleakage value and operation time of group A,group B and group C shows that P<0.05.Conclusions:In resin filling treatment,bulk posterior tooth filling resin material should be selected for its high hardness,strong edge adhesion,and natural effects.
基金The Fundamental Research Funds for the Central Universities,China(No.2232014D3-26)Innovation Fund of the Chinese National Engineering Research Center,China(No.SAM C14-JS-15-049)Science and Technology Commission of Shanghai Municipality,China(No.14DZ1100402)
文摘An experimental procedure was designed to monitor the preform thickness change real-time throughout the vacuum assisted resin infusion( VARI) process. Two kinds of liquid with different viscosity were infused with different post-filling time. The variation of the part thickness during the VARI process was studied. And the effect of the post-filling time on the part thickness was investigated.The results indicate that the compaction behavior of the preform can be divided into three stages,and the fiber volume fraction varies with the post-filling time in a similar sinusoid form. In addition,the post-filling should be overtime for the greatest fiber volume fraction,and when the resin is infused with higher viscosity,the greatest fiber volume fraction is higher.
