Sawako Yokoyama

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STATEMENT OF THE PROBLEM The influence of implant location for an implant-supported cantilever fixed partial denture (FPD) on stress distribution in the bone has not been sufficiently assessed. PURPOSE This study examined the influence of location and length of implants on stress distribution for 3-unit posterior FPDs in the posterior mandibular bone. (More)
PURPOSE The aim of this study was to investigate the stress distribution in mandibular bone supporting a single or separate multiple implant-retained superstructures. MATERIALS AND METHODS Three-dimensional finite element models consisting of the mandibular bone, 8 implants, and 1 or more superstructures were created. Vertical and oblique loads were(More)
PURPOSE This study investigated the influence of intensity of occlusal contact, or occlusal height of an implant-retained single restoration on the stress in the crown surface and supporting bone. METHODS A two-dimensional finite element model of the maxillary and mandibular first molars with supporting periodontal structures was created (Model M-M). One(More)
BACKGROUND The effects of the locations of dental implants on treatment outcomes, as evaluated by oral health-related quality of life (OHRQoL) assessment, remain controversial. PURPOSE To investigate the association between the locations of dental implants and changes in OHRQoL. MATERIALS AND METHODS Sixty-eight subjects received implant treatment in(More)
This study examined the influence of medial implant location in three-unit posterior cantilever fixed partial dentures (FPDs) on stress distribution in mandibular bone surrounding two implants. A three-dimensional finite element model that included three-unit FPD and two cylindrical-type implants (4 mm in diameter and 10 mm in length) osseointegrated in the(More)
PURPOSE The present article describes a novel clinical procedure for mandibular overdentures supported by two freestanding implants loaded immediately after placement via computer-guided flapless surgery. METHODS A conventional acrylic complete denture was fabricated, and CT scans obtained using the denture as a radiographic guide. Preoperative(More)
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