种植磁附着体在全口义齿修复中的临床应用

目的　探讨种植磁附着体全口义齿对下颌牙槽嵴重度吸收的无牙颌患者的修复效果。方法　采用CDIC牙种植体及配套磁性附着体,为8例下颌牙槽嵴重度吸收的无牙颌患者在下颌两侧第一前磨牙区各植入1枚种植体,5个月后制作下颌全口义齿并在组织面粘固磁体。对粘固磁体前、后及粘固磁体后6个月的义齿固位力、咀嚼效率和最大咬合力进行测试。结果　种植磁附着体全口义齿在粘固磁体后及粘固后6个月的固位力、咀嚼效率、最大咬合力均较放置磁体前明显提高,其差异具有统计学意义(P<0·01)。结论　对牙槽嵴重度吸收的无牙颌患者,采用种植磁附着体全口义齿修复能显著提高义齿的固位力、咀嚼效率及最大咬合力。

Clinical Study of Complete Dentures Supported by Two Endosteal Magnetic-attachment Implants

Objective To evaluate treatment outcomes of mandibular complete denture supported by two endosteal magnetic-attachment implants in edentulous patients with severe mandibular alveolar ridge absorption.Methods Eight edentulous patients with severe mandibular alveolar ridge absorption were chosen.Each of them was treated with a complete denture supported by two CDIC implants.The implants were inserted at the areas of two the first premolars respectively.After five months,two magnets were adhered to the inside of the complete dentures.Retention,masticatory efficiency and maximal masticatory force were measured before and after the magnets were adhered and six months later.Results Statistical analysis revealed that retention,masticatory efficiency and maximal masticatory force were all increased after the magnets were adhered(P<0.01) and six months later(P<0.01).Conclusion Retention,maximal masticatory force and masticatory efficiency were significantly increased after the endosteal magnetic attachment implants were applied.It is concluded that mandibular complete denture supported by two endosteal magnetic attachment implants is an effective method for severe alveolar ridge absorption cases.