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Mandibular overdentures anchored to single implants: a five-year prospective study.

G Cordioli·Z Majzoub·S Castagna
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Abstract

STATEMENT OF PROBLEM: It is unknown what minimum number of implants are required to satisfactorily support and retain a mandibular overdenture. PURPOSE: The purpose of this study was to evaluate a treatment modality by using mandibular overdentures anchored to single implants in a geriatric patient population. MATERIAL AND METHODS: Twenty-one patients with a mean age of 74.2 years were treated with single implants inserted at the mandibular midline according to the standard two-stage surgical technique. O-Ring or ball attachments were connected to the implants and served as overdenture anchorage. Implant success rate, improvement of oral comfort and function, condition of the peri-implant soft tissues, Periotest values, and the interproximal marginal bone level were evaluated for up to 5 years after delivery of the overdentures. RESULTS: None of the implants were lost during the follow-up period. A mean marginal bone loss of 1.42 +/- 0.56 mm was noted at 60 months. Plaque Index was consistently high around the abutments at all reevaluation intervals but was associated with a low Gingival Index. Pocket Depth averaged 2.41 +/- 0.17 mm for the entire follow-up period. Remarkable improvement of oral comfort and function were evidenced with the overdenture treatment. CONCLUSION: Rehabilitation with mandibular overdentures anchored to a single implant can be a therapeutic alternative for elderly patients experiencing discomfort and functional difficulties with conventional mandibular dentures.

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AgedAged, 80 and overAlveolar Bone LossAlveolar ProcessDental AbutmentsDental Implantation, EndosseousDental ImplantsDental Plaque IndexDental Prosthesis DesignDental Prosthesis, Implant-SupportedDenture Precision AttachmentDenture RetentionDenture, Complete, LowerDenture, OverlayEvaluation Studies as TopicFemaleFollow-Up StudiesHumansJaw, EdentulousMaleMandibleMouthPeriodontal IndexPeriodontal PocketPeriodontiumProspective StudiesTreatment OutcomeJournal Article

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G Cordioli, Z Majzoub, S Castagna. 1997. Mandibular overdentures anchored to single implants: a five-year prospective study.. https://doi.org/10.1016/s0022-3913(97)70120-3

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