Five-year multicenter study of magnetic attachments used for natural overdenture abutments.
The purpose of this study was to examine a longitudinal clinical performance of magnetic attachments used for natural overdenture abutments. The study included 131 patients who had used removable prostheses (complete overdentures 31%, partial dentures 69%) more than 5 years (40-90 years old) with 211 magnetic attachments on natural abutments (Magfit 400 or 600; Aichi Steel co., Aichi, Japan) treated in 15 clinics using a standardized protocol. Analyses were performed on the degree of patient satisfaction regarding retention, complications of magnets (corrosion, detachment from denture base), abutments (pain during mastication, periodontal pocket formation, inflammation, mobility), and dentures (fracture etc.). Ninety-seven percent of patients were satisfied with the retention and stability of their dentures. No corrosion of magnet was observed, and 19 magnets were detached. Most frequent complication of abutments was periodontal pocket formation (52%), followed by the inflammation (29%), increase in mobility (27%) and pain (4%). Magnetic attachment on natural tooth abutments provided a viable and long-term treatment option.
Department of Prosthodontics and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Osaka, Japan.
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Gonda
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Yang
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Maeda
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003343:Corrosion; D000044:Dental Abutments; D001840:Dental Bonding; D019232:Dental Restoration Failure; D003819:Denture Bases; D003779:Denture Design; D003781:Denture Retention / Q000295:instrumentation*; D003826:Denture, Complete, Lower; D003827:Denture, Complete, Upper; D003828:Denture, Overlay; D003832:Denture, Partial, Removable; D005157:Facial Pain / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D059346:Magnets / Q000009:adverse effects; D008297:Male; D008409:Mastication / Q000502:physiology; D008875:Middle Aged; D017060:Patient Satisfaction; D010514:Periodontal Pocket / Q000209:etiology; D010518:Periodontitis / Q000209:etiology; D013499:Surface Properties; D014086:Tooth Mobility / Q000209:etiology