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Volume 24 , Issue 1
January/February 2011

Pages 43–45

Measuring the Load-Bearing Ratio Between Mucosa and Abutments Beneath Implant- and Tooth-Supported Overdentures: An In Vivo Preliminary Study

Takanori Ando, DDS/Yoshinobu Maeda, DDS, PhD/Masahiro Wada, DDS, PhD/Tomoya Gonda, DDS, PhD

PMID: 21210002

The aim of this study was to establish a method for in vivo examination of the load-bearing ratio between mucosa and abutments beneath an overdenture. Two patients wearing a four tooth–supported or a four implant–supported overdenture were enrolled in this study. Recordings were performed with the metal framework only or with a metal framework and a denture base. The force value with the framework only was designated as 100%, and the tissue-supporting ratio (TSR) with the denture base was calculated. The TSR was approximately 30% to 40% in both subjects, regardless of the load. These data suggest that measurement of a TSR beneath an overdenture is feasible. Int J Prosthodont 2011;24:43–45.

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