Objective to study the root canal system morphology and provide anatomic facts for treatment of dental disease.
目的了解根管的形态结构，为牙疾病治疗提供解剖学参考。
Dental practitioners must be aware of the significance of the disease and the risk associated with antibiotics, whether they are used for prophylaxis or treatment.
牙医必须了解的重要意义，疾病和相关的风险与抗生素，无论是用于预防或治疗。
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