J Korean Acad Prosthodont.  2018 Oct;56(4):368-374. 10.4047/jkap.2018.56.4.368.

Causes of failed implant attachments and application of double crown implant overdenture in one patient

Affiliations
  • 1Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea. prosth95@knu.ac.kr

Abstract

In this case, the patient was restored with gold Hader bar mandibular implant overdenture using two implants about 10 years ago, and the retentive force was lost due to severe wear of the bar due to 3.5 years use. The overdenture was repaired using a Locator attachment, but the male part was completely worn after 6.5 years use. Finally, we used a hybrid telescopic double crown with a friction pin to fabricate a new implant overdenture, which was observed for 2 years and showed excellent prognosis. So, we describe the cause of failure of each attachment (Gold Hader bar, Locator) in two implant overdentures and report on the advantages and disadvantages of double crown implant overdenture and the conditions for success.

Keyword

Implant; Attachment; Overdenture; Double crown; Telescopic crown

MeSH Terms

Crowns*
Denture, Overlay*
Friction
Humans
Male
Prognosis
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