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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 17 (1997), No. 5     1. Sep. 1997
Int J Periodontics Restorative Dent 17 (1997), No. 5  (01.09.1997)

Page 427-435


Two-Implant-Supported Single Molar Replacement: Interdental Space Requirements and Comparison to Alternative Options
Balshi / Wolfinger
Posterior single-tooth implant resotrations are subjected to an increased risk of bending overload. A high incidence of implant fracture has been reported when using a single standard 3.75-mm-diameter implant to support a molar restoration. The purpose of this article is to demonstrate the clinical feasibility of placing two implants to support a molar restoration and to compare this treatment option to the use of a single standard implant or a wide-diameter implant. Two osseointegrated dental implants used to support a molar restoration in interdental spaces as small as 10 mm is shown to be effective and predictable in 60 restorations over the past 7 years. The use of two implants provides more surface area for osseointegration and spreads the occlusal loading forces out over a wider area, reducing the potential bending forces that would otherwise exist in a single-implant molar restoration.