This study aimed to evaluate the effects of universal primers on the tensile bond strength between zirconia and resin composites.Zirconia specimens were divided into five groups based on the surface treatment with the...This study aimed to evaluate the effects of universal primers on the tensile bond strength between zirconia and resin composites.Zirconia specimens were divided into five groups based on the surface treatment with the following primers:MP(Monobond Plus),SU(ScotchBond Universal),AZ(AZ Primer),BM(Beauty bond Multi),and BL(Bondmer Lightless).After priming,stainless steel rods were bonded to the zirconia specimens with composite resin.The tensile bond strength test was performed:stored at room temperature for 1 day;stored in distilled water at 37°C for 7 days;and underwent thermal cycling.The BL group demonstrated a significantly higher tensile bond strength than other groups when stored at room temperature for 1 day(p<0.05).The primer that acted via chemical polymerization appeared to be most effective in improving the bond strength between the two materials in this study.展开更多
Based on the findings of epidemiological surveys in western countries, the number of person with suspected xerostomia in Japan is estimated to be 30,000,000. Xerostomia is caused by: 1) Systemic diseases;2) Medication...Based on the findings of epidemiological surveys in western countries, the number of person with suspected xerostomia in Japan is estimated to be 30,000,000. Xerostomia is caused by: 1) Systemic diseases;2) Medications;3) Tumors or trauma;4) Radiotherapy;and 5) Neurological factors. Its symptoms can be alleviated, and its progression can be stopped by close cooperation between the dental and medical departments. However, at present, symptomatic treatment methods such as water drinking, oral rinsing with water, and administration of Kampo medicines or parasymptomimetic drugs are mainly used, and a standard treatment has not been established. On the other hand, previous studies on xerostomia have reported improvement in dry mouth symptoms using dental approaches or a relationship between the development of candidiasis and the salivary flow rate. Therefore, in this study, to establish a dental method useful for improving xerostomia associated with systemic diseases and medications for them, we restored occlusal function, and as a result, increased the salivary flow rate, and evaluated changes in oral findings.展开更多
文摘This study aimed to evaluate the effects of universal primers on the tensile bond strength between zirconia and resin composites.Zirconia specimens were divided into five groups based on the surface treatment with the following primers:MP(Monobond Plus),SU(ScotchBond Universal),AZ(AZ Primer),BM(Beauty bond Multi),and BL(Bondmer Lightless).After priming,stainless steel rods were bonded to the zirconia specimens with composite resin.The tensile bond strength test was performed:stored at room temperature for 1 day;stored in distilled water at 37°C for 7 days;and underwent thermal cycling.The BL group demonstrated a significantly higher tensile bond strength than other groups when stored at room temperature for 1 day(p<0.05).The primer that acted via chemical polymerization appeared to be most effective in improving the bond strength between the two materials in this study.
文摘Based on the findings of epidemiological surveys in western countries, the number of person with suspected xerostomia in Japan is estimated to be 30,000,000. Xerostomia is caused by: 1) Systemic diseases;2) Medications;3) Tumors or trauma;4) Radiotherapy;and 5) Neurological factors. Its symptoms can be alleviated, and its progression can be stopped by close cooperation between the dental and medical departments. However, at present, symptomatic treatment methods such as water drinking, oral rinsing with water, and administration of Kampo medicines or parasymptomimetic drugs are mainly used, and a standard treatment has not been established. On the other hand, previous studies on xerostomia have reported improvement in dry mouth symptoms using dental approaches or a relationship between the development of candidiasis and the salivary flow rate. Therefore, in this study, to establish a dental method useful for improving xerostomia associated with systemic diseases and medications for them, we restored occlusal function, and as a result, increased the salivary flow rate, and evaluated changes in oral findings.
