磁性附着体在老年患者全口覆盖义齿中的应用

Clinical application of magnetic attachments in complete overdentures in elder patients

背景:磁性附着体能提供持久恒定的固位力,可显著提高全口义齿的固位和稳定,有效减少牙槽嵴的吸收,提高咀嚼效率,改善修复效果。目的:观察Magfit磁性附着体在全口覆盖义齿中的临床应用效果及对基牙健康的影响。方法:选择36例牙齿缺失患者,单颌选择1～3个基牙,以MagfitEX磁性附着体作为固位装置,制作覆盖义齿57件,其中上颌覆盖义齿27件,下颌覆盖义齿30件,共96副磁性附着体。结果与结论:36例随访6～36个月,34例感觉义齿舒适,2例不适者经调改和适应后使用良好;33例咀嚼功能恢复良好,3例咀嚼功能恢复较好,但固位力下降,经调节后改善;1例基牙疼痛,经调颌后缓解;5例基牙松动度有好转;2例牙龈红肿充血经缓冲基托及对症治疗有所好转;1例活动义齿部分折断。说明磁性附着体可为覆盖义齿提供长期稳定的固位力,并有助于基牙健康。

BACKGROUND：Magnetic attachments can provide a long-term reliable retention force and significantly improve the retention and stability of complete overdentures to reduce the alveolar ridge absorption availably as well as improve masticatory efficiency and repairing effect.OBJECTIVE：To observe the clinical effect of Magfit magnetic attachment on the complete overdenture retention and its effects on the health of abutment teeth.METHODS：Thirty-six patients with tooth loss were included,and 1-3 abutment teeth on one jaw were selected and treated with Magfit EX magnetic attachment in overdentures.Fifty-seven overdentures were made,including maxillary 27 and mandibular 30,totally 96 magnetic attachments in number.RESULTS AND CONCLUSION：All cases were followed up for 6 to 36 months.Thirty-four cases felt comfortable for overdentures,two cases who felt unwell at the beginning received regulation and adaption,then they felt well.Thirty-three cases had better masticatory function recovery,among whom,three cases recovered better in the masticatory function,but had a decrease in the retention force that was improved after regulation.One case felt abutment tooth painful that relieved after jaw regulation.Five cases of abutment tooth mobility were improved.Two cases of gingival redness and hyperemia had a relief after symptomatic treatment.One case＇s moving attachment was fractured partly.These suggest that the magnetic attachment can provide a long-term reliable retention force and contribute to the health of abutment teeth.