Journals / Ankara Üniversitesi Diş Hekimliği Fakültesi Dergisi / 2004 / Cilt: 31 - Sayı: 3

Investigation of flexural strength of different low-fusing porcelain

Farklı düşük ısı porselenlerinin bükülme dirençlerinin incelenmesi

Pages
169–173
Publication Date
2022-10-10
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

There was no significant differences among the four porcelains.

📌 3 Key Takeaways

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Objective & Hypothesis:This study compared the flexural strehgth of three low-fusing ceramic (Finesse, Duceram-LFC, Duceratin) to those of a conventional low-fusing feldspathic ceramic (Vita OMEGA).
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Key Findings & Data:ADA Spesification No:69 for dental ceramics includes four physical properties which we used flexural strength.
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Conclusion & Impact:There was no significant differences among the four porcelains.
🔬Design:Research Article
📍Scope:12 specimens
⚙️Variables:Domain Parameters

Abstract

This study compared the flexural strehgth of three low-fusing ceramic (Finesse, Duceram-LFC, Duceratin) to those of a conventional low-fusing feldspathic ceramic (Vita OMEGA). To ensure the clinical acceptability of dental porcelain as well as other dental retorations, several physical properties must meet the requirements set by the American Dental Association (ADA). ADA Spesification No:69 for dental ceramics includes four physical properties which we used flexural strength. The 12 specimens were ground to obtain parallel surface and to size of5.0±02 milimeters width. 1.0+0.2 milimeters in thickness and 20 milimeters in length. The dimensions were confirmed by measurements with a micrometer. (Mitutoyo Corp. Japan). A Lloyd universal testing machine was used with a three-point bending test to determine flexural strength. The span was fixed at 13.55mm. between the 1.6 mm. diameter supports. The rate of load application was adjusted to OS N per second. The midpoint of test beam was located and the beam was placed centrally between the supports. All samples exceeded the ADA Spesification No:69 requirements for flexural strength for dentin porcelain of 55Mpa. The mean flexural sterngth among the four porcelain ranged from 140.64-148.80 Mpa. There was no significant differences among the four porcelains.

Özet

Son yıllarda klinik uygulamalarda konvansiyonel porselenlere alternatif olarak diş hekimliği'ne sunulan düşük ısı porselenlerinin bükülme dirençlerinin karşılaştırılması amacı ile yapılan bu çalışmada ADA No:69 standart'ı referans alınmıştır. Araştırmamıza konu olan yeni düşük ısılı porselen tozları; Finesse, Duceram-LFC, Duceratin ile kontrol grubu olarak da geleneksel düşük ısılı Vita OMEGA porselen tozu başlıca materyallerimizi oluşturmuştur. Örnekler 5.0 ± 0.2 mm eninde, 1.0 ± 0.2 mm kalınlığında ve 20mm uzunluğunda olacak şekilde her bir grup için 12 şer adet olarak hazırlanmıştır. Porselen bükülme direnci deneyleri sonucunda tüm seramik materyaller, ADA No:69'un dentin porselenleri için öngördüğü 55Mpa'nın oldukça üzerinde (Vita Omega 140.64+19.24 MPa, Duceratin 148.80±19.07 MPa, Finesse 143.62+11.62 MPa ve Duceram LFC 147.88+21.56 Mpa'lık ortalama bükülme direncine sahip oldukları bulunmuştur.) değerler sergilemişlerdir. Bununla birlikte deneye tabii tutulan seramik materyallerin bükülme dirençleri arasında istatistiksel olarak anlamlı bir fark bulunmamıştır.

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Cite This Article

ZAİMOĞLU, A., KARAAĞAÇ, E. (2022). Investigation of flexural strength of different low-fusing porcelain. Ankara Üniversitesi Diş Hekimliği Fakültesi Dergisi, Cilt: 31 - Sayı: 3, 169–173. https://ajindex.com/articles/439155

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