Computer assisted design/computer assisted machining (CAD/CAM) technology has received considerable clinical and research interest from modern dental practices as a means of delivering all-ceramic restorations. Up to ...Computer assisted design/computer assisted machining (CAD/CAM) technology has received considerable clinical and research interest from modern dental practices as a means of delivering all-ceramic restorations. Up to now the CAD/CAM system with zirconia has the highest fracture strength in all all-ceramic materials, and consistently enabled the most esthetic, lifelike reproduction of natural dentition. They have been widely received by both dentists and patients. The CAD/CAM system with zirconia is indicated for crowns and bridges in natural teeth or implants and telescope dentures, the CAD/CAM with zirconia can be placed anywhere in the mouth, and can replace the porcelain crowns and bridges for single crown and bridges less than 6 units. This paper described the techniques of CAD/CAM system with zirconia in fabrication of crowns, bridges, telescope dentures and implant dentures with colored illustrations.展开更多
目的评价渗透树脂对白垩斑颜色的改善效果。方法选取正畸治疗后前牙白垩斑患牙74颗进行渗透树脂治疗。术前、术后即刻、术后1周拍摄照片。效果分为3级:有效、部分有效和无效。部分有效的患牙测量术前、术后白垩斑面积(W)及患牙唇面的面...目的评价渗透树脂对白垩斑颜色的改善效果。方法选取正畸治疗后前牙白垩斑患牙74颗进行渗透树脂治疗。术前、术后即刻、术后1周拍摄照片。效果分为3级:有效、部分有效和无效。部分有效的患牙测量术前、术后白垩斑面积(W)及患牙唇面的面积(T),计算出W︰T比值(%)。采用Kruskal-Wallis and Mann-Whitney统计方法进行分析。结果有效的患牙20颗(27%),部分有效的患牙54颗(73%),无效的患牙0颗。部分有效的患牙术前W︰T平均值是39.28%,术后W︰T平均值是9.46%(P<0.05)。结论渗透树脂能明显改善白垩斑患牙的美观,改善程度与患牙脱矿程度有关。展开更多
文摘Computer assisted design/computer assisted machining (CAD/CAM) technology has received considerable clinical and research interest from modern dental practices as a means of delivering all-ceramic restorations. Up to now the CAD/CAM system with zirconia has the highest fracture strength in all all-ceramic materials, and consistently enabled the most esthetic, lifelike reproduction of natural dentition. They have been widely received by both dentists and patients. The CAD/CAM system with zirconia is indicated for crowns and bridges in natural teeth or implants and telescope dentures, the CAD/CAM with zirconia can be placed anywhere in the mouth, and can replace the porcelain crowns and bridges for single crown and bridges less than 6 units. This paper described the techniques of CAD/CAM system with zirconia in fabrication of crowns, bridges, telescope dentures and implant dentures with colored illustrations.
文摘目的评价渗透树脂对白垩斑颜色的改善效果。方法选取正畸治疗后前牙白垩斑患牙74颗进行渗透树脂治疗。术前、术后即刻、术后1周拍摄照片。效果分为3级:有效、部分有效和无效。部分有效的患牙测量术前、术后白垩斑面积(W)及患牙唇面的面积(T),计算出W︰T比值(%)。采用Kruskal-Wallis and Mann-Whitney统计方法进行分析。结果有效的患牙20颗(27%),部分有效的患牙54颗(73%),无效的患牙0颗。部分有效的患牙术前W︰T平均值是39.28%,术后W︰T平均值是9.46%(P<0.05)。结论渗透树脂能明显改善白垩斑患牙的美观,改善程度与患牙脱矿程度有关。