Effect of material and fabrication technique on marginal fit and fracture resistance of adhesively luted inlays made of CAD/CAM ceramics and hybrid materials

Sener-Yamaner, Işıl Damla; Sertgöz, Atilla; Toz-Akalın, Tuğba; Özcan, Mutlu

doi:10.1080/01694243.2016.1204144

Cited by 22 publications

(47 citation statements)

References 47 publications

(73 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings were confirmed by Yamaner et al (23) who stated that the higher fracture force of CAD/CAM restorations may be the result of optimized industrial manufacturing conditions and subsequent minimal voids and volume defects.…”

Section: Discussionsupporting

confidence: 79%

See 1 more Smart Citation

Fracture Resistance and Retention of Metal-Free Inlay Retained Fixed Partial Dentures

et al. 2017

View full text Add to dashboard Cite

Statement of the problem: Conservative esthetic restorative dentistry has become an essential component in modern clinical practice. However, the inlay retained fixed partial dentures (IRFPDs) have a higher risk of fracture and dislodgement due to minimal preparations. Purpose: to compare fracture resistance and retention of Lithium disilicate (IPS e.max) and Polyetheretherketone (BioHPP) IRFPDs fabricated with heat-press technique and CAD/CAM system. Materials and Methods: Forty models, each including extracted mandibular 2 nd premolar and 2 nd molar embedded in an epoxy resin block with 10 mm intra-abutment distance representing missing mandibular 1 st molar were constructed. The premolar and molar of each model received standardized class II inlay preparations. The constructed models were randomly divided into four groups; Group (1): IPS e.max Press IRFPDs, Group (2): IPS e.max CAD IRFPDs, Group (3): BioHPP Granulates IRFPDs, and Group (4): breCAM.BioHPP IRFPDs. All IRFPDs were cemented using RelyX Ultimate adhesive resin cement. Samples were stored for 24 hours in distilled water at 37°C, and then thermocycled for 5000 cycles. Universal testing machine was used to measure fracture and dislodging loads. Samples were examined for determination of failure mode using a magnifying lens. Results: The statistically significant highest mean dislodging load value was obtained in IPS e.max Press IRFPDs, followed by IPS e.max CAD, with the least value recorded in breCAM.BioHPP. In contrast, breCAM.BioHPP IRFPDs revealed the statistically significant highest mean fracture load value, followed by BioHPP Granulates, while the least mean fracture value was recorded in IPS e.max Press. Most failure occurred in IPS e.max groups was connector fracture, while in BioHPP groups was plastic deformation. Conclusions: Retention and fracture resistance of metal-free inlayretained bridges are significantly affected by both; material type and construction method. BioHPP has significant advantages for dental applications because of higher fracture resistance and better stress distribution. The bond strength at IPS e.max/ resin cement interface is considered a reliable bond presenting better retention to IRFPDs. Being a brittle material, connector fracture is the predominant failure mode of IPS e.max IRFPDs; however, BioHPP has low elastic modulus showing plastic deformation as a predominant failure mode.

show abstract

Section: Discussionsupporting

confidence: 79%

“…Yamaner et al (23) studied the effect of material type and fabrication technique on fracture resistance of adhesively luted inlay restorations. It was concluded that CAD/CAM-fabricated lithium disilicate ceramic inlays have higher fracture resistance values compared to heat-pressed fabricated lithium disilicate ceramic.…”

Section: Introductionmentioning

confidence: 99%

Fracture Resistance and Retention of Metal-Free Inlay Retained Fixed Partial Dentures

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The developments of CAD/ CAM technology combined with the new ceramic materials specifically designed for this technology are attracting the curiosity of many researchers. 5,9,10,[29][30][31] The principles of chair-side CAD/CAM are becoming increasingly accepted among clinicians and universities, changing the common way of learning indirect restorations and providing access to their application by more professionals in their practices. 10,32,33,34 A new skill is becoming of major importance for future dentists, improving their competence and ability to do digital restorations.…”

Section: Discussionmentioning

confidence: 99%

“…The factors that are not easy to predict are tool wear, chipping control, machining and energy forces, and surface finish and integrity, because they can be checked only after manufacturing and qualitatively analyses. 9,10,29 Due to application of the modern way of manufacturing ceramic restorations, quantitative analysis is extremely necessary to assess the purpose of new materials.…”

Section: Discussionmentioning

confidence: 99%

“…This technology reduces the distortions caused by standard methods and eliminates numerous laboratorial phases that could be complicating factors during the manufacturing process. 8,9,10 Dental ceramics and polymer-based materials can be easily fabricated with CAD/CAM technology, with desirable properties due to adequate environment where it is produced. 10,11,12 CAD/CAM technology provides powerful restoration and conservative preparation; however, for best performance the materials should be chosen during the treatment planning.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Brittleness index and its relationship with materials mechanical properties: Influence on the machinability of CAD/CAM materials

et al. 2019

View full text Add to dashboard Cite

The aim of this study is to evaluate the machinability of four CAD/CAM materials (n = 13) assessed by brittleness index, Vickers hardness, and fracture toughness and interaction among such mechanical properties. The materials selected in this in vitro study are Feldspathic ceramic [FC], Lithium-disilicate glass ceramic [LD], leucite-reinforced glass ceramic [LR], and nanofilled resin material [RN]. Slices were made from the blocks following original dimensions 14 x 12 x 3 mm (L x W x H), using a precision slow-speed saw device and then surfaces were regularized through a polishing device. Brittleness index and fracture toughness were calculated by the use of specific equations for each one of the properties. The Vickers hardness was calculated automated software in the microhardness device. One-way Anova and Pearson's correlation were applied to data evaluation. LD obtained the highest values for brittleness index and was not significantly different from FC. LR presented statistically significant difference compared with RN, which had the lowest mean. Vickers hardness showed LD with the highest average, and no statistical difference was found between FC and LR. RN presented the lowest average. Fracture toughness showed FC and LR not statistically different from each other, likewise LD and RN. The brittleness index, considered also as the machinability of a material, showed within this study as positively dependent on Vickers hardness, which leads to conclusion that hardness of ceramics is related to its milling capacity. In addition, fracture toughness of pre-sintered ceramics is compared to polymer-based materials.

show abstract

Effect of preparation design on marginal adaptation and fracture strength of ceramic occlusal veneers: A systematic review

Sirous

Navadeh²,

Ebrahimgol

et al. 2022

Clinical & Exp Dental Res

View full text Add to dashboard Cite

Objectives: This systematic review aims to investigate the effect of different preparation designs on the marginal fit and fracture strength of ceramic occlusal veneers.Materials and Methods: Based on the PICO question and the search terms, an electronic search was performed in Google Scholar, PubMed (MEDLINE), Scopus, Cochrane Library, Web of Science, Science Direct, Wiley, Ovid, and SAGE for articles published up to July 2022. After including English in vitro studies that evaluated posterior ceramic occlusal overlays at the posterior with ceramic restorations by following the PRISMA statement, the extracted data was tabulated. The methodological quality of the included studies was evaluated. Risk of bias assessment was done independently by two authors using the modified MINORS scale.Results: About 3138 search results were screened, of which 22 were selected due to their titles. Twenty-one full-text articles were assessed for eligibility. Seventeen invitro studies were finalized for the extraction of quantitative data. All 17 articles had a low risk of bias and were retained. The influencing items for evaluating the research were different in most studies; therefore, qualitative synthesis of the results was feasible. They generally included preparation design, material thickness, depth of preparation in the tooth, internal divergence angle, and finish line. Metaanalysis was not done due to heterogeneity of preparation types and evaluation methods. Results revealed that fracture resistance of occlusal veneers is higher than normal mastication force, and it is sufficient to prepare the occlusal surface, use a self-etching primer for bonding, and an acceptable minimum ceramic thickness. The marginal discrepancy of occlusal veneers is clinically acceptable. However, this systematic review faces some limitations due to the lack of in vivo studies, different preparation designs in included studies, different follow-ups, and lack of comprehensive explanations in articles.

show abstract

Effect of material and fabrication technique on marginal fit and fracture resistance of adhesively luted inlays made of CAD/CAM ceramics and hybrid materials

Cited by 22 publications

References 47 publications

Fracture Resistance and Retention of Metal-Free Inlay Retained Fixed Partial Dentures

Fracture Resistance and Retention of Metal-Free Inlay Retained Fixed Partial Dentures

Brittleness index and its relationship with materials mechanical properties: Influence on the machinability of CAD/CAM materials

Effect of preparation design on marginal adaptation and fracture strength of ceramic occlusal veneers: A systematic review

Contact Info

Product

Resources

About