J Korean Acad Prosthodont.  2016 Oct;54(4):401-406. 10.4047/jkap.2016.54.4.401.

Mandibular implant overdenture using milled bar attachment on implants with unfavorable fixture angulation: A case report

• Seo YH
• Jeon YC
• Jeong CM
• Yun MJ
• Huh JB

• KMID: 2388219
• DOI: http://doi.org/10.4047/jkap.2016.54.4.401

Abstract

Implant overdenture exhibits higher retention, masticatory function, and patient's satisfaction compared to conventional dentures. Particularly, in treatment of severe alveolar bone resorption, implant overdenture can be considered as the first treatment option. The types of attachments used for implant overdenture can be classified into solitary type, which implants are not connected to each other, and bar type in which implants are connected. In the case of solitary type commonly used in clinical practice, parallel relationship is important. When it is not established, there is a higher risk of attachment wear, retention loss, and frequent visits for maintenance. In this case, satisfactory results have been obtained with implant overdentures using milled bar on two unparallel implants placed on the mandible.

Keyword

Edentulous; Implant overdenture; Unfavorable fixture angulation; Milled bar

MeSH Terms

Bone Resorption
Denture, Overlay*
Dentures
Mandible

Figure

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  Fig. 1. Panoramic view at first visit.

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  Fig. 2. (A) Denture duplication for radiographic stent, (B) CT view.

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  Fig. 3. Panoramic view after implantation.

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  Fig. 4. (A) Fabricated milled bar pattern, (B) casted milled bar and (C) milled bar with locator attachment.

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  Fig. 5. Definitive prosthesis. (A,F) Occlusal view of maxilla and mandibule, (B) Right lateral view (C) Frontal view, (D) Left lateral view, (E) Mandibular overdenture, (G) Intraoral view of milled bar.

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