这个词是什么意思？
The structures surrounding and supporting the tooth. Periodontium includes the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D010519 · MeSH 2026。
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