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Dive into the research topics where Toshiaki Koji is active.

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Featured researches published by Toshiaki Koji.


Odontology | 2009

A study on the fit of the base plate —Influence of canditions of storage—

Miki Harada; Kimio Shimizu; Norio Ohnuma; Hideaki Watanabe; Toshiaki Koji; Osami Morita

The aims of this study was to define the effect of storage conditions of base plates, which consist of self-curing resin.Examinantions were made on the dimensional accuracy with the passage of time of base plate stored in water and air on a plaster model for standerdized maxillary edentulous. The following conclusions were obtained;1.The fit of base plate stored in water proved to be beter than that stored in air.2.No significant difference was noted among 7 times points.3.In terms of sites of measurement along the base plate, the more posteror the site of measurement, the greater the gap between a base plate and a cast, was observed.4.The best fitting base plate proved to be Ostron II. The second best fitting base plate proved to be Trayresin II.


Nihon Hotetsu Shika Gakkai Zasshi | 2003

The Effects of Wearing Laminate Mouth Guard on Body Sway in Upright Posture with the Eyes Closed

Norio Ohnuma; Tomoyuki Ohnuma; Miwa Maruya; Kimio Shimizu; Setsuo Arai; Toshiaki Koji; Osami Morita

目的: 本研究の目的は, ラミネートマウスガードの装着が閉眼時の静的平衡機能に及ぼす影響を明らかにすることである.方法: 被験者は健常有歯顎者11名である. 被験条件は, 閉眼時においてマウスガード非装着での咬頭嵌合位とマウスガードを装着して軽く咬合接触させる2条件とし, 各被験条件での直立姿勢の重心動揺を立位足底圧分布測定装置を用いて計測した. 計測項目は, 重心動揺の左右成分の標準偏差 (XS. D.), 前後成分の標準偏差 (Y-S.D.) および重心移動距離である.被験条件間の統計解析には, Wilcoxon の符号付順位検定を用いた.結果: マウスガード装着, 非装着時でのX-S. D., Y-S. D., 重心移動距離の中央値と四分位範囲は, マウスガード装着時では, 0.19 (0.13), 0.12 (0.10), 9.54 (3.90) cmであり, マウスガード非装着時では, 0.19 (0.11), 0.11 (0.11), 10.19 (4.68) cmであった. 検定の結果, すべての計測項目でマウスガード装着とマウスガード非装着間について有意な差を認めなかった.結論: 以上のことより, ラミネートマウスガードの装着による閉眼時の静的平衡機能への影響を見いだしえなかった.


スポーツ歯学 = Journal of sports dentistry | 2004

Study on Mouthguard Material : Thickness, Relationship between the Elongation and the Thickness of Mouthguard Sheet after Vacuum Forming Process

Fumi Takahashi; Toshiaki Koji; Osami Morita


スポーツ歯学 = Journal of sports dentistry | 2008

Study on the Elongation and Thickness of Mouthguard Sheets after Vacuum Forming Process : The Influence of the Height of the Working Model

Fumi Takahashi; Mutsumi Takahashi; Toshiaki Koji; Osami Morita


スポーツ歯学 = Journal of sports dentistry | 2003

Elongation of Mouthguard Sheet after Vacuum Forming Process by Heating Conditions

Fumi Takahashi; Toshiaki Koji; Osami Morita


Prosthodontic Research & Practice | 2006

Oral Dryness Examinations : Use of an Oral Moisture Checking Device and a Modified Cotton Method

Fumi Takahashi; Toshiaki Koji; Osami Morita


Prosthodontic Research & Practice | 2006

Clinical Usefulness of an Oral Moisture Checking Device (Mucus

Fumi Takahashi; Mutsumi Takahashi; Shuji Toya; Toshiaki Koji; Osami Morita


Dental Materials Journal | 2008

A New Method for Denture Identification

Fumi Takahashi; Toshiaki Koji; Osami Morita


Nihon Hotetsu Shika Gakkai Zasshi | 2000

The Effect of Wearing Denture and Changes of Occlusal Position on Body Sway in Edentulous Patient.

Miwa Maruya; Kimio Shimizu; Tomoyuki Ohnuma; Toshiaki Koji; Osami Morita


Nihon Hotetsu Shika Gakkai Zasshi | 1996

Study on the Training Effect of Palpation Force.

Satoru Akimoto; Tomoyuki Ohnuma; Kimio Shimizu; Masatoshi Sawaguchi; Toshiaki Koji; Osami Morita

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Osami Morita

The Nippon Dental University

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Fumi Takahashi

The Nippon Dental University

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Kimio Shimizu

The Nippon Dental University

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Norio Ohnuma

The Nippon Dental University

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Hideaki Watanabe

The Nippon Dental University

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Masatoshi Sawaguchi

The Nippon Dental University

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Mutsumi Takahashi

The Nippon Dental University

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Miki Harada

The Nippon Dental University

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Shuji Toya

The Nippon Dental University

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