A Clinical Report and Overview of Scientific Studies and Clinical Procedures Conducted on the 3M ESPE Lava™ All‐Ceramic System

Piwowarczyk, Andree; Ottl, Peter; Lauer, Hans–Christoph; Kuretzky, T.

doi:10.1111/j.1532-849x.2005.00003.x

Cited by 64 publications

(49 citation statements)

References 20 publications

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“…As for Lava and IPS Empress 2 all-ceramic systems, they possess good physical properties which can be utilized to create inlays, onlays, crowns, and bridges 40) . The elastic modulus values of these ceramic veneer materials are close to enamel and support enamel better than resin composites.…”

Section: Discussionmentioning

confidence: 99%

Effects of different ceramic and composite materials on stress distribution in inlay and onlay cavities: 3-D finite element analysis

Yamanel

Çağlar

Gülşahı

et al. 2009

Dental Materials Journal

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To reduce loss of tooth tissue and to improve esthetic results, inlay and onlay restorations are good treatment choices for extensive cavities in posterior teeth. The aim of this paper was to evaluate, by means of three-dimensional finite element analysis, the effects of restorative material and cavity design on stress distribution in the tooth structures and restorative materials. Two different nanofilled composites and two different all-ceramic materials were used in this study. A permanent molar tooth was modeled with enamel and dentin structures. 3-D inlay and onlay cavity designs were created. Von Mises, compressive, and tensile stresses on the restorative materials, core materials, enamel, and dentin were evaluated separately. On the effect of restorative material, results showed that in the case of materials with low elastic moduli, more stress was transferred to the tooth structures. Therefore, compared to the nanofilled composites, the all-ceramic inlay and onlay materials tested transferred less stress to the tooth structures. On the effect of cavity design, the onlay design was more efficacious in protecting the tooth structures than the inlay design.

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Section: Discussionmentioning

confidence: 99%

Effects of different ceramic and composite materials on stress distribution in inlay and onlay cavities: 3-D finite element analysis

Yamanel

Çağlar

Gülşahı

et al. 2009

Dental Materials Journal

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“…Processing with presintered materials includes designing an enlarged reconstruction and milling of the frameworks from presintered zirconia blanks. The milled reconstruction has a linear shrinkage of 20-25% during sintering until it reaches the desired final dimension (Piwowarczyk et al, 2005). In contrast, hipped zirconia can be milled to the final dimensions because no further heat treatment, with associated dimensional change, is required (Filser et al, 2001;Besimo et al, 2001;Suttor et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of flexural strength of hipped and presintered zirconia using different estimation methods of Weibull statistics

Stawarczyk¹,

Özcan²,

Trottmann³

et al. 2012

Journal of the Mechanical Behavior of Biomedical Materials

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OBJECTIVES: This study determined the flexural strength of one hipped and eight presintered zirconia and evaluated the results using different estimation methods of Weibull statistics. MATERIALS AND METHODS: Presintered zirconia specimens were prepared in white state and sintered according to each manufacturer's instructions. One hipped zirconia acted as the control group. The specimens were loaded in a Universal Testing Machine (ISO 6872, 2008). Data were analysed using "normal" (Levene test, one-way ANOVA, Scheffé test) and "Weibull distribution" estimated by either Least Squares (LS) (mean (Excel) and median rank (MINITAB)), Maximum Likelihood (ML) (MINITAB) or ML (MINITAB) with a correction of BS EN 843-5 (2006) (862; 1009)). The highest Weibull modulus estimated by LS for mean and median rank was observed with LZ (8.9 and 9.8(7.5; 12.9), respectively) and the lowest with ZE (5.1 and 5(3; 8.2), respectively). According to ML and MLC estimation, the control group showed the highest (10.1(6.6; 15.6), 9.2(5.8; 14.2), respectively), and CZ the lowest (5.6(3.8; 8.2), 5.0(3.2; 7.8), respectively) Weibull modulus. No differences in estimates of standard deviations of the normal distribution and the estimates of Weibull moduli for different estimation methods were found between all tested groups. CONCLUSIONS: Flexural strength of the tested hipped zirconia was higher than those of presintered ones according to both normal and Weibull distribution. LS (median rank) and ML estimates can be compared by a global test and by means of 95% CI. For corrected ML estimates the 95% CI can be interpreted. Estimate calculations in Excel (LS, mean rank) provides information on 95% CI for the Weibull parameters. (862;1009)). The highest Weibull modulus estimated by LS for mean and median rank was observed with LZ (8.9 and 9.8(7.5;12.9), respectively) and the lowest with ZE (5.1 and 5(3;8.2), respectively).According to ML and MLC estimation, the control group showed the highest (10.1(6.6;15.6), 9.2(5.8;14.2), respectively), and CZ the lowest (5.6(3.8;8.2), 5.0(3.2;7.8), respectively) Weibull modulus. No differences in estimates of standard 3 deviations of the normal distribution and the estimates of Weibull moduli for different estimation methods were found between all tested groups.Conclusions: Flexural strength of the tested hipped zirconia was higher than those of presintered ones according to both normal and Weibull distribution. LS (median rank) and ML estimates can be compared by a global test and by means of 95% CI. For corrected ML estimates the 95% CI can be interpreted. Estimate calculations in EXCEL (LS, mean rank) provides on information on 95% CI for the Weibull parameters.

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“…Single tooth restorations and FPD with a single pontic element are possible on both anterior and posterior elements because of the mechanical reliability of this material. [27][28][29] It is possible to use juxtagingival marginal preparations and various …”

Section: Clinical Applicationsmentioning

confidence: 99%

Zirconia: Substitute for Metal Ceramics

Kumar¹,

Shruthi²,

Raj³

et al. 2014

JOFR

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In the search for the ultimate esthetic restorative material, many all-ceramic systems have been proposed. Dental research is nowadays directed toward metal-free prosthetic restorations in order to improve an esthetical outcome of crown and bridge restorations. Zirconia is a polycrystalline ceramic without a glassy phase and exists in several forms. Zirconia cores for fixed partial dentures (FPD) on anterior and posterior teeth and on implants are now available. This article is a review of zirconia crowns as replacement for conventional metal-ceramic crowns.

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A Clinical Report and Overview of Scientific Studies and Clinical Procedures Conducted on the 3M ESPE Lava™ All‐Ceramic System

Cited by 64 publications

References 20 publications

Effects of different ceramic and composite materials on stress distribution in inlay and onlay cavities: 3-D finite element analysis

Effects of different ceramic and composite materials on stress distribution in inlay and onlay cavities: 3-D finite element analysis

Evaluation of flexural strength of hipped and presintered zirconia using different estimation methods of Weibull statistics

Zirconia: Substitute for Metal Ceramics

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