Effect of Light Irradiation Time on the Mechanical Properties of Two Flowable Composites with Different Initiation Systems in Bonded and Unbonded Cavities
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概要
- 論文の詳細を見る
The aim of this study was to evaluate the regional mechanical properties of flowable composites with different initiation systems under free and constrained conditions. Forty cavities fabricated in resin blocks with or without bonding treatment were bulk-filled with Estelite Flow Quick (EFQ) or Palfique Estelite LV (ELV), followed by light irradiation for 10 or 30 seconds. Each specimen was sliced to three slabs parallel to the long axis. The middle slab was serially sliced from top to bottom to harvest three sticks for ultimate tensile strength (UTS) measurement. The remaining slabs were polished for microhardness (KHN) measurement. The results indicated that the UTS and KHN of both flowable composites decreased toward the bottom of the cavity and increased with prolonged light irradiation time. At the upper cavity region, UTS values of the bonded groups were significantly lower than those of the unbonded groups, except for the 10-second light irradiation group of EFQ. As for KHN, the values did not change significantly for both flowable composites between the unbonded and bonded groups.
- 日本歯科理工学会の論文
著者
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TAGAMI Junji
Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and
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FOXTON Richard
Department of Conservative Dentistry, King's College London Dental Institute at Guy's, King's and St
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Foxton Richard
Department Of Conservative Dentistry King's College London Dental Institute At Guy's King&
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NAKAJIMA Masatoshi
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical an
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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Tagami Junji
Cariology And Operative Dentistry Tokyo Medical And Dental University
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Tagami Junji
Cariology & Operative Dentistry Department Of Restorative Dentistry Tokyo Medical And Dental Uni
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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Foxton Richard
Clinical Lecturer Department Of Conservative Dentistry Guy's King's And St. Thomas' D
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Foxton Richard
Department Of Conservative Dentistry King's College London Dental Institute At Guy's King&
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Foxton Richard
Department Of Conservative Dentistry Floor 25 Guy's King's And St. Thomas' Dental Ins
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Science Tokyo Medical And Dental Univers
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Tokyo Medical And Dental Univer
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Foxton Richard
Department Of Conservative Dentistry Floor 25 Guy's King's And St. Thomas' Dental Ins
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Nakajima Masatoshi
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Of Medical And
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Nakajima Masatoshi
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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Tagami Junji
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical A
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Nayif Ma'an
Cariology And Operative Dentistry Department Of Restorative Sciences Graduate School Tokyo Medical And Dental University
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