摘要
背景:在临床上发生烤瓷冠崩瓷的情况较为普遍,单冠烤瓷牙崩瓷后采用拆除重作的方法简单、有效,但对于烤瓷固定桥,特别是长桥出现个别牙崩瓷采用上述方法往往难度较大。使用邻面开口式部分烤瓷冠修复定桥崩瓷的方法目前尚未见报道。目的:为减轻烤瓷固定桥修复体崩瓷患者的痛苦和经济负担,减少拆除烤瓷桥时的危险性和制作过程,探讨邻面开口式部分冠修复金-瓷固定桥崩瓷的可行性。方法:在口内破损的烤瓷固定桥桥体或固位体上备牙,形成与两端固位体类似"栓道"的固位的"核",再制作邻面开口的烤瓷部分冠。结果与结论:27例前后牙金-瓷固定桥崩瓷的患者采用邻面开口式烤瓷部分冠修复经过两三年的随访观察,修复体固定牢固,修复体边缘不露金属、密合、无瓷裂现象,冠龈缘或桥体处牙龈无红肿,患者感觉舒适,咀嚼无异常。提示邻面开口式部分冠修复体是一种修复烤瓷固定桥崩瓷有效的方法,风险小,成本低,操作简单。
BACKGROUND：Ceramic crown porcelain fracture is wide in clinic.The method of repairing single crown porcelain fracture is simple and effective,but it is difficult for ceramic fixed bridge,especially individual teeth porcelain fracture on the long bridge.There is no report concerning prosthesis of partial crown with aperture of neighboring surface.OBJECTIVE：To lessen suffering and economic burden of the patient with cracking of porcelain on the fixed bridge,to decrease the chanciness and manufacture procedure of removing the porcelain fixed bridge,to discuss the feasibility of prosthesis of partial crown with aperture of neighouring surface.METHODS：By preparing tooth at damaged pontic or retainer of the porcelain fixed bridge in oral,shaping＂core＂retention form which analogy＂keyway＂form at both of retainers,and then make the porcelain partial crown with aperture of neighboring surface.RESULTS AND CONCLUSION：We followed up 27 patients that porcelain-fused-to-metal（PFM） with cracking of porcelain using partial crown with aperture of neighboring surface to repairing for 2-3 years.The prosthesis was strong;the edge of prosthesis was close together,without exposing metal or cracking of porcelain,gingival had no redness at the edge of crown and pontic.Patients feel good,chewing was normal.These suggested that the prosthesis of partial crown with aperture of neighboring surface is an effective method for restoring the fixed bridge with cracking of porcelain,with less risk,low cost and simple operation.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2010年第3期496-499,共4页
Journal of Clinical Rehabilitative Tissue Engineering Research
