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Bar Attachments Used in Tooth-Supported Overdentures

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Treatment Options Before and After Edentulism

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Abstract

Bar-retained tooth and implant-supported restorations are the most popular type of prosthetic treatment, and their relevance has increased due to advances in implantology. A bar attachment—as compared to a stud attachment such as a Locator, O-Ring, Ball, or Magnet—provides greater prosthesis stability (ideal for a patient with a flat or atrophied residual ridge), splinting of questionable implants (ideal for the more porous bone in the maxillae), and will readily compensate for divergent implants. This type of attachment is commonly used for overdentures (tooth/implant overdenture) if adequate vertical space is available, and patients can have good oral hygiene. Bar attachment may be rigid or resilient, permitting free movement of the prosthesis to direct forces away from the retaining abutments to the supportive bone and tissue. An overdenture bar provides between 60% and 90% of functional capacity. Bars have the secondary benefit of splinting the abutments together, which helps to protect weak implants/roots and is often indicated in the softer bone of the maxilla. Bars can also accommodate extremely divergent implants/roots. Also, bar attachments reduce the lever force on the teeth, as they are placed close to the alveolar bone and close to the rotation point on the tooth.

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Authors and Affiliations

  1. Faculty of Dentistry, Department of Prosthodontics, Marmara University, Istanbul, Turkey

    Yılmaz Umut Aslan

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  1. Yılmaz Umut Aslan
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Correspondence to Yılmaz Umut Aslan .

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Editors and Affiliations

  1. Faculty of Dentistry, Department of Prosthodontics, Marmara University, Istanbul, Türkiye

    Yasemin Özkan

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Aslan, Y.U. (2023). Bar Attachments Used in Tooth-Supported Overdentures. In: Özkan, Y. (eds) Treatment Options Before and After Edentulism. Springer, Cham. https://doi.org/10.1007/978-3-031-37582-8_4

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  • DOI: https://doi.org/10.1007/978-3-031-37582-8_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-37581-1

  • Online ISBN: 978-3-031-37582-8

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