Tomoko Someya
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View article: Fracture resistance of endodontically treated bovine roots restored with resin abutments and polyetheretherketone
Fracture resistance of endodontically treated bovine roots restored with resin abutments and polyetheretherketone Open
The objective of this study was to evaluate polyetheretherketone (PEEK) as a post material for resin core abutments in bovine root by static and dynamic fracture loads, with comparison for fiber-reinforced composite (FRC) post. Resin core …
View article: Wear behavior of crown restoration materials and bovine tooth enamel opposed by pure titanium
Wear behavior of crown restoration materials and bovine tooth enamel opposed by pure titanium Open
The purpose of this study was to investigate the wear behavior of pure titanium when opposed to six different crown restorative materials. Abrader specimens were prepared by casting pure titanium and these were paired with substrates inclu…
View article: Analysis of Bone Mineral Density and Bone Quality of Cortical Bone in the Human Hyoid Body and Histological Observation of the Entheses
Analysis of Bone Mineral Density and Bone Quality of Cortical Bone in the Human Hyoid Body and Histological Observation of the Entheses Open
The hyoid is the only bone in the human body that is completely independent, not forming a joint with any other bone; its position is maintained by the suprahyoid and infrahyoid muscles, as well as several ligaments. The purpose of this st…
View article: The Wear Behavior of Glass-Ceramic CAD/CAM Blocks against Bovine Enamel
The Wear Behavior of Glass-Ceramic CAD/CAM Blocks against Bovine Enamel Open
The wear of enamel and crown restorative materials often occur by occlusion. The purpose of this study was to evaluate the wear volume between glass-ceramics used for CAD/CAM blocks (lithium disilicate: Initial LiSi block (LIS), IPS e.max …
View article: Effect of Surface Treatments of Polyetherketoneketone as a Post Material on Shear Bond Strength to Root Dentin using Two Types of Resin Cement.
Effect of Surface Treatments of Polyetherketoneketone as a Post Material on Shear Bond Strength to Root Dentin using Two Types of Resin Cement. Open
Mechanical pretreatment by sandblasting did not improve the PEKK-root dentin SBS. However, combined mechanical (sandblasting) and chemical pretreatment (ScotchBond Universal) significantly improved the SBS between the PEKK and root dentin.
View article: Wear Behavior between Aesthetic Restorative Materials and Bovine Tooth Enamel
Wear Behavior between Aesthetic Restorative Materials and Bovine Tooth Enamel Open
Tooth enamel wear occurs because of daily mastication and occlusion. This study investigated the wear behavior of bovine teeth against aesthetic restorative materials in vitro. Abrader specimens were fabricated using four tooth-colored res…
View article: Effect of bone defect width and a ferrule on the fracture characteristics of vertically fractured teeth reattached with adhesive resin cement: An <i>in vitro</i> study
Effect of bone defect width and a ferrule on the fracture characteristics of vertically fractured teeth reattached with adhesive resin cement: An <i>in vitro</i> study Open
This study aimed to clarify the effects of vertical bone defect width and a ferrule on fracture of the fragments of fractured tooth reattached with adhesive resin cement (reattached tooth). The reattached tooth was built up by a fiber post…
View article: Retention force of fiber-reinforced composite resin post on resin composite for core buildup —Effects of fiber orientation, silane treatment and thermal cycling
Retention force of fiber-reinforced composite resin post on resin composite for core buildup —Effects of fiber orientation, silane treatment and thermal cycling Open
The purpose of this study was to investigate the effects of fiber orientation, silane treatment, and thermal cycling on the retention force of fiber-reinforced composite resin (FRC) posts on resin composite. Two types of FRC posts (linear …
View article: <i>In vitro</i> wear behavior of restorative resin composites against bovine enamel
<i>In vitro</i> wear behavior of restorative resin composites against bovine enamel Open
The purpose of this study was to clarify the effects of fabrication method of restorative resin-based composites on its wear using enamel as antagonist teeth. Wear evaluation was performed via two-body wear test using hemispherical samples…
View article: Differences in Breast Lesion Elasticity Score Between Screening and Recall Examinations
Differences in Breast Lesion Elasticity Score Between Screening and Recall Examinations Open
エラストグラフィを施行する際，検診と精査時で評価に差がないかどうかを検討した。対象は２０１２年１月から２０１３年６月までに検診超音波検査（US）を施行し要精査となり，検診から１年以内に病院で精査US を施行した症例である。良性は１５例，悪性は検診からさらに４カ月以内に絞り３８例を対象とした。検診と精査で同病変のElasticity Score（スコア）を比較し，検診より精査でスコアが高かったものを高，変わらなかったものを不変，低かったものを低と分類した。検査は検診ではUS …
View article: Effects of calcium hydroxide reagent on the bond strength of resin cements to root dentin and the retention force of FRC posts
Effects of calcium hydroxide reagent on the bond strength of resin cements to root dentin and the retention force of FRC posts Open
The aim of this study was to determine the effects of calcium hydroxide (Ca(OH)2) treatment on bond strength of resin cements to root dentin and retention force of fiber-reinforced composite (FRC) posts. Bovine root dentin was endodontical…