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本文叙述了1983年至1988年期间为67名患者修复的73件金属烤瓮粘结桥的临床疗效追踪观察情况。随访中有4例使用期限已超过4年,仍在继续观察中。
This article describes the follow-up of the clinical efficacy of 73 metal-to-metal urn bonding bridges repaired in 67 patients from 1983 to 1988. Four patients were followed up for more than 4 years and are still under observation.