J Dent Rehabil Appl Sci.  2015 Dec;31(4):378-386. 10.14368/jdras.2015.31.4.378.

Mandibular implant-natural tooth retained overdenture using magnetic attachment with stress breaker

• Park EC
• Lee SY
• Kim HJ

• KMID: 2150203
• DOI: http://doi.org/10.14368/jdras.2015.31.4.378

Abstract

Overdenture has the advantage of improving the stability and retention of the denture but the abutment may be easily affected by caries or periodontal disease and the thin denture can be easily broken. The magnetic attachment overdenture has a high vertical retention but a low horizontal retention, thus, exerting a less disruptive force to the abutment or implant and shows less abrasion or damage compared to other mechanical retainers. Denture fractures in overdenture is caused by the thin denture base as the attachment is inserted, but it may also be caused by the difference in detrusion between soft tissue and hard tissue, and between an implant and a natural tooth. To compensate this shortcoming, a magnetic attachment with a silicone ball inserted in the magnet was developed as we report a successful case using this specific type of magnetic attachment overdenture.

Keyword

overdenture; magnet; stressbreaker

MeSH Terms

Denture Bases
Denture, Overlay*
Dentures
Periodontal Diseases
Silicon
Silicones
Tooth*
Silicon
Silicones