Fracture resistance of metal-free composite crowns–effects of fiber reinforcement, thermal cycling, and cementation technique

Lehmann, Franziska; Eickemeyer, Grit; Rammelsberg, Peter

doi:10.1016/j.prosdent.2004.05.014

Cited by 37 publications

(37 citation statements)

References 15 publications

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“…Displacement-load graphs were used to measure the fracture loads of specimens. Failure was defined as a 10% loss of maximum force, as in previous studies 17,19) . Calculations and statistical analysis were conducted using SPSS 19.0 for Windows (SPSS ver.…”

Section: Zic Groupmentioning

confidence: 99%

In vitro comparison of fracture load of implant-supported, zirconia-based, porcelain- and composite-layered restorations after artificial aging

et al. 2014

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This study evaluated fracture load of single-tooth, implant-supported, zirconia-based, porcelain-and indirect composite-layered restorations after artificial aging. Forty-four zirconia-based molar restorations were fabricated on implant abutments and divided into four groups, namely, zirconia-based all-ceramic restorations (ZAC group) and three types of zirconia-based composite-layered restorations (ZIC-P, ZIC-E, and ZIC groups). Before layering an indirect composite material, the zirconia copings in the ZIC-P and ZIC-E groups were primed with Clearfil Photo Bond and Estenia Opaque Primer, respectively. All restorations were cemented on the abutments with glass-ionomer cement and then subjected to thermal cycling and cyclic loading. All specimens survived thermal cycling and cyclic loading. The fracture load of the ZIC-P group (2.72 kN) was not significantly different from that of the ZAC group (3.05 kN). The fracture load of the zirconia-based composite-layered restoration primed with Clearfil Photo Bond (ZIC-P) was comparable to that of the zirconia-based all-ceramic restoration (ZAC) after artificial aging.

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Section: Zic Groupmentioning

confidence: 99%

In vitro comparison of fracture load of implant-supported, zirconia-based, porcelain- and composite-layered restorations after artificial aging

et al. 2014

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“…During testing, the compressive load was graphically recorded as a load-displacement curve. The break detector level was set at a 10% loss of maximum force 27) . Statistical analysis was performed by using IBM SPSS Statistics version 19.0 for Windows (IBM, Armonk, NY, USA).…”

Section: Zirconia-based Prostheses Layered Onto Zirconia Framework Wmentioning

confidence: 99%

Effect of framework design on fracture load after thermal cycling and mechanical loading of implant-supported zirconia-based prostheses

et al. 2018

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This study evaluated the effect of zirconia framework design on fracture load of implant-supported zirconia-based prostheses after thermal cycling and mechanical loading. Three different zirconia framework designs were investigated: uniform-thickness (UNI), anatomic (ANA), and supported anatomic (SUP) designs. Each framework was layered with feldspathic porcelain (ZAC group) or indirect composite material (ZIC group). The specimens then underwent fracture load testing after thermal cycling and cyclic loading. In the ZAC group, mean fracture load was significantly lower for UNI design specimens than for the other framework designs. In the ZIC group, there was no significant difference in mean fracture load between ANA design specimens and either UNI or SUP design specimens. To improve fracture resistance of implant-supported zirconia-based prostheses after artificial aging, uniformly thick layering material and appropriate lingual support with zirconia frameworks should be provided.

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“…Fracture toughness of indirect composite resin crowns was reported to be similar to that of metalceramic restorations 10) . When subjected to fatigue testing, metal-free composite crowns exhibited similar fracture resistance before and after fatigue testing 11) , and that they survived compressive cyclic loading with neither fractures nor microcracks 6) . However, in clinical practice, chipping or fractures of composite crowns are occasionally encountered.…”

Section: Introductionmentioning

confidence: 97%

Evaluation of fracture resistance of indirect composite resin crowns by cyclic impact test: Influence of crown and abutment materials

et al. 2013

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This study evaluated the effect of abutment materials on the fracture resistance of composite crowns for premolars. Composite crowns were fabricated using two different indirect composite resin materials (Meta Color Prime Art or Estenia C&B) and cemented onto either a metal (Castwell M.C. 12) or composite resin (Build-It FR and FibreKor) abutment with resin cement (Panavia F2.0). Twenty-four specimens were fabricated for four groups (n=6 each) and subjected to 280-N cyclic impact loading at 1.0 Hz. The number of cycles which caused the composite crown to fracture was defined as its fracture resistance. All data were statistically analyzed using ANOVA and the Bonferroni test (α=0.05). Composite crowns cemented onto resin abutments showed higher fracture resistance than those cemented onto metal abutments.

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Fracture resistance of metal-free composite crowns–effects of fiber reinforcement, thermal cycling, and cementation technique

Cited by 37 publications

References 15 publications

In vitro comparison of fracture load of implant-supported, zirconia-based, porcelain- and composite-layered restorations after artificial aging

In vitro comparison of fracture load of implant-supported, zirconia-based, porcelain- and composite-layered restorations after artificial aging

Effect of framework design on fracture load after thermal cycling and mechanical loading of implant-supported zirconia-based prostheses

Evaluation of fracture resistance of indirect composite resin crowns by cyclic impact test: Influence of crown and abutment materials

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