The location and treatment of the canal isthmus may be a prerequisite to successful surgical endodontics.

对根管管间峡区的诊断和治疗，是牙髓外科手术成功的关键。

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The location and treatment of the canal isthmus may be a prerequisite to successful surgical endodontics.

对根管管间峡区的诊断和治疗，是牙髓外科手术成功的关键。

youdao