Zhou Tuan feng, Wang Xin zhi, Zhang Gui rong
Department of Prosthodontics, Peking Univesity School and Hospital of Stomatology, Beijing 100081, China.
Beijing Da Xue Xue Bao Yi Xue Ban. 2011 Feb 18;43(1):77-80.
To clinic observation of IPS Empress2 and IPS e.max all ceramic resin bonded fixed partial dentures used in one anterior teeth lost in upper jaw or less than two anterior tooth lost in lower jaw.
22 patients, 26 restorations had been made, which included 16 single-retainer all ceramic resin bonded fixed partial dentures and 10 two-retainers all ceramic resin bonded fixed partial dentures. Secondary caries of the abutments, shade in the margin of the retainers and the integrity of the restorations had been observed at 3 months, 6 months, 1 year, 2 years and 3 years after all ceramic resin bonded fixed partial dentures having been bonded.
In the 3 years of clinic observation of the anterior all ceramic resin bonded fixed partial dentures, 1 two-retainers restoration lost bond after it had been made for 3 months, a retainer of one two-retainers restoration was broken after 6 months, but they are still used after modified as one-retainer all ceramic resin bonded fixed partial dentures, 1 two-retainers restoration lost bond two year later, It was integrity and re-bonded again that was still stable. No secondary carries and no shade in margin of the retainers had been found. Their color matches with the nature teeth excellently. The success rate was 88.5%.
IPS Empress 2 and IPS e.max all ceramic resin bonded fixed partial dentures should be a good selection in one or two teeth lose in anterior jaws.
对上颌单颗前牙缺失或下颌少于两颗前牙缺失采用IPS Empress2和IPS e.max全瓷树脂粘结固定局部义齿进行临床观察。
22例患者共制作26件修复体,其中单基牙全瓷树脂粘结固定局部义齿16件,双基牙全瓷树脂粘结固定局部义齿10件。在全瓷树脂粘结固定局部义齿粘结后3个月、6个月、1年、2年和3年观察基牙继发龋、固位体边缘色泽及修复体完整性。
在前牙全瓷树脂粘结固定局部义齿3年的临床观察中,1件双基牙修复体粘结3个月后发生松动,1件双基牙修复体6个月后一个固位体折断,经改作单基牙全瓷树脂粘结固定局部义齿后仍在使用,1件双基牙修复体2年后发生松动,经重新粘结后仍稳固。未发现基牙继发龋及固位体边缘色泽改变,其颜色与天然牙匹配良好。成功率为88.5%。
IPS Empress 2和IPS e.max全瓷树脂粘结固定局部义齿是前牙区单颗或两颗牙缺失修复的较好选择。