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牙周疾病是指发生在牙齿支持组织(牙周组织)的疾病,主要包括牙龈炎和牙周炎。牙周组织包括牙龈、牙周膜、牙骨质和牙槽骨,共同对牙齿起支持作用,故又称其为牙齿的支持组织。牙颈部、龈沟中牙菌斑内的微生物长期刺激首先引起牙龈炎,炎症继续扩展,损害深部牙周组织,导致牙周袋形成,牙槽骨吸收,牙齿松动,最后导致牙齿脱落,即为牙周炎。牙龈炎和牙周炎是最常见的牙周疾病,也是人类较常见的感染性
Periodontal disease refers to diseases that occur in tooth-supported tissues (periodontal tissue), mainly including gingivitis and periodontitis. Periodontal tissue, including the gums, periodontal ligament, cementum and alveolar bone, together play a supporting role in the teeth, it is also known as the tooth support organizations. Cervical gingival crevicular bacteria in placenta long-term stimulation of the first bacteria cause gingivitis, inflammation continues to expand, damage to deep periodontal tissue, resulting in periodontal pocket formation, alveolar bone absorption, loose teeth, and finally lead to tooth loss, that is, For periodontitis. Gingivitis and periodontitis are the most common periodontal diseases and are more common in humans