J Korean Acad Prosthodont.  2021 Jan;59(1):55-62. 10.4047/jkap.2021.59.1.55.

Changes in periodontal tissue and denture around the implants in the mandibular milled-bar implant overdenture: A 12-year follow-up

  • 1Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea


The mandible has a smaller support area than the maxilla, and in particular, in patients with generalized alveolar bone resorption, the stability of the denture and the masticatory efficiency are significantly low in the case of conventional complete denture, due to the movement of the tongue and mandible. In these patients, implant overdenture is evaluated as a highly predictable treatment method with high retention and stability, and excellent pronunciation and masticatory force. In this clinical case, patient had an edentulous maxilla and generalized alveolar bone resorption in mandible. Therefore, complete denture was placed in the maxilla and implant overdenture using milled bar attachment on 4 implants was placed in the mandible. During the 12-year follow-up period, changes in periodontal tissue and denture around the implants were periodically managed and observed.


Edentulous; Follow-up; Implant overdenture; Milled bar
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