Unstable cracking (chipping) of veneering porcelain on all-ceramic dental crowns and fixed partial dentures

Swain, Michael V.

doi:10.1016/j.actbio.2008.12.016

Cited by 427 publications

(435 citation statements)

References 20 publications

Supporting

Mentioning

385

Contrasting

Unclassified

Order By: Relevance

“…Zirconia used as framework material appears to withstand the clinical forces during chewing and regular function and fracture rates are low and comparable to metal-based FDPs [17]. However, in contrast to metal-based FDPs, a higher rate of technical complications (major chippings) was reported [18,19]. The adhesion between zirconia and veneering ceramics is reported to be the critical issue for this observation [20].…”

Section: Introductionmentioning

confidence: 88%

All-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. Part II: Multiple-unit FDPs

et al. 2015

View full text Add to dashboard Cite

d e n t a l m a t e r i a l s 3 1 ( 2 0 1 5 ) [624][625][626][627][628][629][630][631][632][633][634][635][636][637][638][639] Available online at www.sciencedirect.com ScienceDirect j o u r n a l h o m e p a g e : w w w . i n t l . e l s e v i e r h e a l t h . c o m / j o u r n a l s / d e m a ReviewAll-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. d e n t a l m a t e r i a l s 3 1 ( 2 0 1 5 ) 624-639 625(12.9%) compared to metal-ceramic FDPs (0.6%) and densely sintered zirconia FDPs (1.9%) in 5 years in function. However, the incidence of ceramic fractures and loss of retention was significantly (p = 0.018 and 0.028 respectively) higher for densely sintered zirconia FDPs compared to all other types of FDPs.Conclusions. Survival rates of all types of all-ceramic FDPs were lower than those reported for metal-ceramic FDPs. The incidence of framework fractures was significantly higher for reinforced glass ceramic FDPs and infiltrated glass ceramic FDPs, and the incidence for ceramic fractures and loss of retention was significantly higher for densely sintered zirconia FDPs compared to metal-ceramic FDPs.

show abstract

Section: Introductionmentioning

confidence: 88%

All-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. Part II: Multiple-unit FDPs

et al. 2015

View full text Add to dashboard Cite

show abstract

“…22,23 To some extent, this tensile stress is compensated by compression stress, but when excessive loads are applied, the tensile stress is higher and may lead to immediate crack development, increasing the likelihood of fracture. 22,24 Clinically, it has been observed that bilaminated crown failure occurs most frequently by the chipping of the porcelain. 2,5,6,25,26 In the present study, the failure mode analysis revealed a predominance of failure with porcelain cracking, corroborated by the results of another laboratory study.…”

Section: Groupsmentioning

confidence: 99%

“…22 For the zirconia- porcelain combination, despite the small difference in thermal expansion coefficients, the low thermal diffusivity of the zirconia results in a high temperature difference and very high residual tensile stresses within the porcelain. 22,23 To some extent, this tensile stress is compensated by compression stress, but when excessive loads are applied, the tensile stress is higher and may lead to immediate crack development, increasing the likelihood of fracture. 22,24 Clinically, it has been observed that bilaminated crown failure occurs most frequently by the chipping of the porcelain.…”

Section: Groupsmentioning

confidence: 99%

Surface agents' influence on the flexural strength of bilaminated ceramics

et al. 2013

View full text Add to dashboard Cite

The objective of this study was to evaluate the influence of different surface agents on the flexural strength of a ceramic system. Eighty bar-shaped specimens of zirconia were divided into four groups according to the agent to be used: group Control -to be cleaned with alcohol; group VM9 -application of a fluid layer of porcelain; group Effect Bonder -application of a bonding agent; and group Coloring Liquid -application of coloring liquid. All specimens received the porcelain application by the layering technique and were then subjected to thermocycling. The four-point bending test was performed to calculate the strength values (σ, MPa) and the failure modes were classified. ANOVA did not detect significant differences among the groups. The Weibull modulus were 5 (Control, VM9 and Effect Bonder) and 6 (Coloring Liquid). The cracking of the porcelain ceramic toward the interface was the predominant failure mode. It was concluded that the surface agents tested had no effect on the flexural strength of the bilaminated ceramic specimens.

show abstract

“…In addition, alumina has a thermal diffusivity (1.0 x 10 −5 m 2 sec −1 ) higher than that of zirconia (7.4 x 10 −7 m 2 sec −1 ), which allows alumina to be more effective in dissipating heat (Swain, 2009). Zirconia, with a lower thermal diffusivity, is more prone to generating high tensile residual stresses in the porcelain veneer, leading to premature veneer chipping or fracture, as theoretically predicted with flat specimens (Swain, 2009). However, alumina has a relatively low flexural strength, which makes alumina-based restorations susceptible to bulk fracture (Kelly, 1997;Oden et al, 1998;Hermann et al, 2006;Kokubo et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Improving Fatigue Damage Resistance of Alumina through Surface Grading

Ren¹,

Liu²,

Bhowmick

et al. 2011

J Dent Res

View full text Add to dashboard Cite

Porcelain-veneered alumina crown restorations often fail from bulk fracture resulting from radial cracks that initiate at the cementation surface with repeated flexure of the stiffer crown layers on the soft dentin support. We hypothesized that bulk fracture may be substantially mitigated by grading the elastic modulus at the crown surfaces. In this study, we fabricated graded structures by infiltrating glass into dense alumina plates, resulting in a diminished modulus at the surface layers. The plates were then bonded to polycarbonate substrates and subjected to fatigue loading in water. Tests were terminated when fracture occurred at the cementation tensile surface or at the fatigue endurance limit (1 million cycles). Infiltrated specimens showed a significant increase in fatigue fracture loads over non-infiltrated controls. Our results indicate that controlled elastic gradients at the surface could be highly beneficial in the design of fracture-resistant alumina crowns.

show abstract

Unstable cracking (chipping) of veneering porcelain on all-ceramic dental crowns and fixed partial dentures

Cited by 427 publications

References 20 publications

All-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. Part II: Multiple-unit FDPs

All-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. Part II: Multiple-unit FDPs

Surface agents' influence on the flexural strength of bilaminated ceramics

Improving Fatigue Damage Resistance of Alumina through Surface Grading

Contact Info

Product

Resources

About