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Fracture resistance of dental glass-ceramics under sliding contact.

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Title: Fracture resistance of dental glass-ceramics under sliding contact.
Authors: Sánchez-González, Estíbaliz1 (AUTHOR), Borrero-López, Óscar1 (AUTHOR) oborlop@unex.es, Rodríguez-Rojas, Fernando1 (AUTHOR), Pérez, José Antonio1 (AUTHOR), Hoffman, Mark2 (AUTHOR)
Source: Ceramics International. Oct2023, Vol. 49 Issue 19, p31727-31733. 7p.
Subjects: Glass-ceramics, Prosthodontics, Stress fractures (Orthopedics), Dental materials, Dental ceramics, Fracture mechanics
Abstract: Aesthetic glass-ceramics are widely employed dental materials, both in bulk form and as veneers. As they are highly brittle, the durability of these materials is limited by fracture and wear processes originated from contacts with opposing dentition and/or third-body particles during mastication and bruxism. This work investigates the resistance to fracture of commercial dental glass-ceramics under sliding contact, simulated by means of scratch tests. It finds that materials with relatively larger crystals (feldspathic and leucite) require a lower stress to fracture upon sliding than lithium silicates containing smaller (but more elongated) crystals, due to their larger defects and lower toughness. Results are analyzed as a function of material microstructure within the framework of Weibull theory and fracture mechanics. Implications for materials selection and development in prosthetic dentistry are briefly discussed. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Fracture resistance of dental glass-ceramics under sliding contact.
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Oct2023, Vol. 49 Issue 19, p31727-31733. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Glass-ceramics%22">Glass-ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Prosthodontics%22">Prosthodontics</searchLink><br /><searchLink fieldCode="DE" term="%22Stress+fractures+%28Orthopedics%29%22">Stress fractures (Orthopedics)</searchLink><br /><searchLink fieldCode="DE" term="%22Dental+materials%22">Dental materials</searchLink><br /><searchLink fieldCode="DE" term="%22Dental+ceramics%22">Dental ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+mechanics%22">Fracture mechanics</searchLink>
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  Data: Aesthetic glass-ceramics are widely employed dental materials, both in bulk form and as veneers. As they are highly brittle, the durability of these materials is limited by fracture and wear processes originated from contacts with opposing dentition and/or third-body particles during mastication and bruxism. This work investigates the resistance to fracture of commercial dental glass-ceramics under sliding contact, simulated by means of scratch tests. It finds that materials with relatively larger crystals (feldspathic and leucite) require a lower stress to fracture upon sliding than lithium silicates containing smaller (but more elongated) crystals, due to their larger defects and lower toughness. Results are analyzed as a function of material microstructure within the framework of Weibull theory and fracture mechanics. Implications for materials selection and development in prosthetic dentistry are briefly discussed. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.ceramint.2023.07.127
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 31727
    Subjects:
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        Type: general
      – SubjectFull: Prosthodontics
        Type: general
      – SubjectFull: Stress fractures (Orthopedics)
        Type: general
      – SubjectFull: Dental materials
        Type: general
      – SubjectFull: Dental ceramics
        Type: general
      – SubjectFull: Fracture mechanics
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      – TitleFull: Fracture resistance of dental glass-ceramics under sliding contact.
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            NameFull: Sánchez-González, Estíbaliz
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            NameFull: Borrero-López, Óscar
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            NameFull: Rodríguez-Rojas, Fernando
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            NameFull: Pérez, José Antonio
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              M: 10
              Text: Oct2023
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              Y: 2023
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