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目的:研究氧化锆全瓷和金属烤瓷冠修复对牙冠延长术后牙周状况的影响,为临床治疗提供依据。方法:选取2014年12月到2015年2月我院收治牙冠延长术联合牙冠修复治疗患者210例,按照随机数字表法将患者分为研究组和对照组,每组105例,研究组应用氧化锆全瓷,对照组应用金属烤瓷,比较两组牙周情况、佩戴修复体时间和康复时间。结果:研究组正常者比例为83.81%(88/105)显著高于对照组的65.71%(69/105),轻度病损者比例为8.57%(9/105)显著低于对照的21.90%(23/105),比较差异具有统计学意义(P<0.05);研究组术后佩戴修复体时间和康复时间均显著短于对照组,比较差异具有统计学意义(P<0.05)。结论:应用氧化锆全瓷修复能改善牙冠延长术后患者牙周情况,缩短佩戴修复体时间和康复时间。
Objective: To study the effect of zirconia porcelain and porcelain fused to metal crown on periodontal status after tooth crown extension, and provide the basis for clinical treatment. Methods: From December 2014 to February 2015, 210 patients with crown extension and crown restoration were selected in our hospital. According to the random number table, the patients were divided into study group and control group, with 105 cases in each group. The study group Zirconia porcelain was used. In the control group, metal porcelain was used. Periodontal condition and wearing time and recovery time of the two groups were compared. Results: The percentage of normal subjects was 83.81% (88/105), which was significantly higher than 65.71% (69/105) in controls and 8.57% (9/105) in mild lesions, which was significantly lower than that of control (21.90% (P <0.05). The time of recuperation and rehabilitation were significantly shorter in the study group than in the control group (P <0.05). Conclusion: The application of zirconia all-ceramic restoration can improve the periodontal status of patients with crown extension and shorten the time of wearing the restoration and the recovery time.