Cuspal deflection in premolar teeth restored with bulk-fill resin-based composite materials

M. M. Elsharkasi, Jeffrey Platt, Norman Cook, G. H. Yassen, B. A. Matis

Research output: Contribution to journalArticle

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Abstract

The present study investigated the effect of three high-viscosity bulk-fill resin-based composite materials on cuspal deflection in natural teeth. Thirty-two sound maxillary premolar teeth with large slot mesio-occlusal-distal cavities were distributed into four groups (n=8). Three groups were restored with bulk-fill resin composite materials (Tetric EvoCeram Bulk Fill, Ivoclar Vivadent, Schaan, Liechtenstein; x-tra fil, VOCO, Cuxhaven, Germany; and SonicFill, Kerr, Orange, CA, USA) in a single 4-mm increment. The conventional composite group, Filtek Z100 (3M ESPE, St Paul, MN, USA), was used to restore the cavities in 2-mm increments. Cusp deflection was recorded postirradiation using a Nikon measurescope UM-2 (Nikon, Tokyo, Japan) by measuring the changes in the bucco-palatal widths of the teeth at five minutes, 24 hours, and 48 hours after completion of the restorations. Cuspal deflection was significantly higher in the conventional composite than in the Tetric Evo- Ceram Bulk Fill (p=0.0031), x-tra fil (p=0.0029), and SonicFill Bulk (p=0.0002) groups. There were no significant differences in cuspal deflection among the three bulk-fill materials (all p,0.05). In conclusion, all the investigated bulk-fill resin composites exhibited cuspal deflection values that were smaller than those associated with a conventional incrementally placed resin composite.

Original languageEnglish (US)
Pages (from-to)1-9
Number of pages9
JournalOperative Dentistry
Volume43
Issue number1
DOIs
StatePublished - Jan 1 2018

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Composite Resins
Bicuspid
Tooth
Liechtenstein
Tokyo
Viscosity
Germany
Japan
Tetric EvoCeram

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Cuspal deflection in premolar teeth restored with bulk-fill resin-based composite materials. / Elsharkasi, M. M.; Platt, Jeffrey; Cook, Norman; Yassen, G. H.; Matis, B. A.

In: Operative Dentistry, Vol. 43, No. 1, 01.01.2018, p. 1-9.

Research output: Contribution to journalArticle

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