Peri-implantitis is most frequently induced by poor oral hygiene or periodontitis/periapical periodontitis from adjacent teeth, rarely by infection from antagonist teeth.

• 种植体早期感染大多由口腔卫生不良或种植体邻牙的牙周炎或根尖周炎引起,而由种植体对颌自然牙的牙周炎所致的种植体早期松动失效很少见。