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Dental resin composites (DRCs) are popular materials for repairing caries or dental defect, requiring excellent properties to cope with the complex oral environment. Filler/resin interface interaction has a significant impact on the physicochemical/biological properties and service life of DRCs. Various chemical and physical modification methods on filler/resin interface have been introduced and studied, and the physical micromechanical interlocking caused by the modification of fillers morphology and structure is a promising method. This paper firstly introduces the composition and development of DRCs, then reviews the chemical and physical modification methods of the filler/resin interface, mainly discusses the interface micromechanical interlocking structures and their enhancement mechanism for DRCs, finally give a summary on the existing problems and development potential.
Assuntos
Resinas Compostas/química , Propriedades de Superfície , Teste de MateriaisRESUMO
Objective: To observe the changes of circulating fractalkine and its receptor CX3CR1 level in patients with chronic congestive heart failure (CHF). Methods: Our work included 2 group, CHF group, n=55 patients and Control group, n=25 healthy subjects. Plasma level of soluble fractalkine (sFKN) was measured by ELISA, CX3CR1 in peripheral blood mononuclear cell was examined by lfow cytometry method. The relationship between sFKN and NT-proBNP was studied. Results: Compared with Control group, CHF group had increased sFKN level, P=0.004, and the patients with NYHY III, IV were more than NYHY II, and CHF group also had the higher CX3CR1 expression (14.7 ± 8.1), P Conclusion: The circulating FKN l and its receptor CX3CR1 might be involved in pathogenesis of immune-inlfammatory pathogenesis in CHF patients.
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OBJECTIVE:To evaluate the therapeutic effect of Xuesaitong soft capsule on symptoms of TCM in patients with stroke and cerebral infraction. METHODS:112 patients were divided into 2 groups,84 cases for experimental group and 28 cases for control group using CDAS 2.0 software. Experimental group were given Xuesaitong soft capsule and stimulation agent of Yinxingye soft capsule 2 pill at a time for 28 days,tid. RESULTS:100 patients including 75 cases for experimental group and 25 cases for control group had been completed experiment. There were statistical significance in difference between 2 groups in respect of improving half paralyzed symptoms,speech lost,dizziness and quarrel skew. Above aspects of experimental group were better than control group. CONCLUSION:Xuesaitong soft capsule have sound effect on blood stasis in stroke patients in recovery period.