Mechanical behavior of CAD/CAM occlusal ceramic reconstruction assessed by digital color holography

Xia, Haiting; Picart, Pascal; Montrésor, Silvio; Guo, Rongxin; Li, J. C.; Solieman, Osama Yusuf; Durand, Jean‐Olivier; Fages, Michel

doi:10.1016/j.dental.2018.05.007

Cited by 25 publications

(19 citation statements)

References 51 publications

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“…This characteristic is important and must have contributed to the high fracture load values of the ultrathin occlusal veneers since a more homogeneous material is subject to less internal stress, allowing a higher fracture load of the material compared to that of less homogenous materials 30 . Another factor to be considered is the preparation's form that respected the natural anatomy of the tooth, allowing a better distribution of stress 40 at the time of the fracture load test.…”

Section: Discussionmentioning

confidence: 99%

Fracture load of CAD/CAM ultrathin occlusal veneers luted to enamel or dentin

Valenzuela

Andrade

Cunha

et al. 2020

J Esthet Restor Dent

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Objectives To evaluate, in vitro, the fracture load of IPS e.max CAD occlusal veneers at thicknesses of either 0.3 or 0.6 mm luted to enamel or dentin. Materials and methods Fifty human molars were randomly distributed into five groups (n = 10): G1 ‐ healthy teeth (control); G2‐0.3‐mm‐thick veneers luted to enamel; G3‐0.6‐mm‐thick veneers luted to enamel; G4‐0.3‐mm‐thick veneers luted to dentin; and G5‐0.6‐mm‐thick veneers luted to dentin. After the luting procedures, the specimens were immersed in distilled water at 37°C for 24 hours and then subjected to mechanical loading (106 cycles at 200 N load). The specimens were subjected to a fracture load test in a universal testing machine. Two‐way ANOVA and Tukey's test (α = 0.05) were used to analyze data. Results Only the thickness factor was significant (P = .002). Values of fracture load followed by distinct letters represent significant differences (P < .05): G1 (3204 N ± 730)ab; G2 (3144 N ± 729)ab; G3 (2489 N ± 606)b; G4 (3591 N ± 776)a; and G5 (2770 N ± 598)ab. Conclusion IPS e.max ultrathin occlusal veneers luted to enamel or dentin obtained fracture load comparable to that of the healthy tooth. Clinical significance IPS e.max CAD ultrathin occlusal veneers at 0.3 or 0.6‐mm‐thick seem to provide good perspectives in relation to the clinical use.

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Section: Discussionmentioning

confidence: 99%

Fracture load of CAD/CAM ultrathin occlusal veneers luted to enamel or dentin

Valenzuela

Andrade

Cunha

et al. 2020

J Esthet Restor Dent

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“…In such a case, a prosthetic treatment using a full crown may be indicated, but, unfortunately, this procedure requires an additional and extensive preparation of the already hampered dentition 3) . For this reason, using a thinly bonded posterior occlusal veneers have been suggested [4][5][6][7] . Advances in dental CAD/CAM technologies and materials in addition to improvements in bond strength and longevity of adhesives, have opened the door to the development of ceramic restorations with superior esthetical and mechanical properties 8,9) .…”

Section: Introductionmentioning

confidence: 99%

Effect of various digital cement space settings on the adaptation of CAD/CAM occlusal veneer “micro-ct evaluation”

et al. 2021

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“…Lithium di silicate occlusal veneers of 1 mm thickness have the ability to provide good output under static load with limited tooth reduction and minimal preparation to reach to acceptable inter occlusal clearance [9].The usage of the resin composite cement has the advantage of increase the strength of the LDS material and its retention to tooth structure [10] .…”

Section: Introductionmentioning

confidence: 99%

Influence of Restoration Thickness and Auxillary Retentive Means on Fracture Resistance of Occlusal Ceramic Veneers

Aly¹,

Mohsen

2021

Journal of Modern Research

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Objectives:To evaluate the influence of restoration thickness and auxillary retentive means on fracture resistance of occlusal ceramic veneers. Materials and Methods: Forty sound molars were chosen which are free from caries, The teeth were divided into two classes and restored with CAD/CAM lithium disilicate ceramic occlusal veneers. Group (1) has no finish line, while Group (2) has a finish line. Each category consisted of 10 molars with buccal groove extension and 10 molars without it, with two thicknesses of 1 and 1.5 mm.Usage of a universal testing machine to measuring the fracture strength of lithium di silicate material after loading till fracture. Results: Only specimens in the group with the thickest thickness of (1.5 mm ) survived cyclic loading without any damage. Survival rates in the remaining sub-groups ranged from 50 to 100% for surviving with some damage and from 12.5 to 75% for surviving without any damage. Medians of final fracture resistance ranged from 772 to 902 N. In groups with larger ceramic thickness (1.5 mm) provided statistically significant (p ≤0.05) higher fracture resistance than smaller one. Significance: Usage of 1.5mm thickness buccally retentive lithium disilicate ceramic occlusal veneers can restore successfully severely abraded teeth.

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Mechanical behavior of CAD/CAM occlusal ceramic reconstruction assessed by digital color holography

Cited by 25 publications

References 51 publications

Fracture load of CAD/CAM ultrathin occlusal veneers luted to enamel or dentin

Fracture load of CAD/CAM ultrathin occlusal veneers luted to enamel or dentin

Effect of various digital cement space settings on the adaptation of CAD/CAM occlusal veneer “micro-ct evaluation”

Influence of Restoration Thickness and Auxillary Retentive Means on Fracture Resistance of Occlusal Ceramic Veneers

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