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１９８３年以来，我们对１３８个无法作根管治疗术的慢性尖周炎患牙采用截根术治疗。患牙分布情况：１６为２３个；１７为８个；２６为２１个；２７为７个；３６为２６个；３７为１３个；４６为２９个；４７为１１个。１适应证①患慢性尖周病，长期换药无好转，Ｘ线片示牙...
Since 1983, we have treated trocar for 138 teeth with chronic periapical disease that can not be treated by root canal therapy. Distribution of affected teeth: 16 for 23; 17 for 8; 26 for 21; 27 for 7; 36 for 26; 37 for 13; 46 for 29; 1 indications ① suffering from chronic periapical disease, long-term dressing no improvement, X-ray tooth shows ...