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Volume 24 , Issue 2
March/April 2011

Pages 130132

Biomechanical Rationale for Short Implants in Splinted Restorations: An In Vitro Study

Tsung-Chieh Yang, DDS, PhD/Yoshinobu Maeda, DDS, PhD/Tomoya Gonda, DDS, PhD

PMID: 21479278

Seven implants provided with strain gauges were placed in an acrylic block to evaluate the biomechanical performance of short implants in splinted restorations. Two 7-mm-long implants with the same diameter (3.8, 4.4, or 5.0 mm) were splinted together (short-short implant splinted restoration [SS]) or individually with a 4.4 12.0-mm implant (short-long implant splinted restoration [SL]), and a 50-N oblique load was applied to both restorations. The strain decreased significantly with an increase in implant diameter in both the SS and SL restorations, and the observed strain was identical between splinted implants of the same diameter and those splinted with the long implant, suggesting that splinting of two short implants has the same biomechanical effectiveness as splinting with a single long implant. Int J Prosthodont 2011;24:130132.

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