Journals / Ondokuz Mayıs Üniv. Diş Hekimliği Derg. / 2005 / Cilt: 6 - Sayı: 2

The effect of aging in water on the flexural strength of three flowable composite resins

Üç akışkan kompozit rezinin suda bekletilme sürelerinin bükülme dayanım değerlerine olan etkisi

Pages
91–95
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

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

We think that new studies are needed to understand the effects of different waiting periods .

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Aim: This study evaluated the effect of aging in water on the flexural strength of three flowable composite resins.
📊
Key Findings & Data:The flexural strength of the samples were determined after one week and one month of aging in distilled water at 37± 1 °C.
💡
Conclusion & Impact:We think that new studies are needed to understand the effects of different waiting periods .
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Kompozit rezinler · Biyomekanik · Zaman faktörleri

Abstract

Aim: This study evaluated the effect of aging in water on the flexural strength of three flowable composite resins. Material and methods: In this study, three flowable composites (Aeliteflo[AF]), (Tetric Flow[TFJ), (Flowline[FL]) and one universal hybrid composite resin (Venus[V])were used. An universal hybrid composite was evaluated as control. The samples were prepared and tested according to International Standart Organization (ISO) specifications. The flexural strength of the samples were determined after one week and one month of aging in distilled water at 37± 1 °C. Each sample was mounted an Universal testing machine at a crosshead speed of 0.5 mm/min, with loading until fracture. The final values were calculated and data were analyzed by Kruskal Wallis, Mann Whitney U and Wilcoxon Tests. Results: At the end of 24 hour waiting period, the difference among the composite resins were found statistically significant. When the flexural strength values were compared two by two, AF with V, TF with V, FL with V; the difference was found statistically significant (p<0.05). The difference between the other groups was not found significant (p>0.05). At the end of a month waiting period, when the flexural strength values of samples were compared, the difference among composite resins was found significant (p<0.05). When the groups were compared two by two, the difference between AF with TF, AF with V, TF with FL, TF with V was found significant.(p<0.05), whereas the difference between AF with FL was not found significant (p>0.05). When the flexural strength values of composite resins concerning 24 hour and a month of aging were compared, the difference was not found significant (p>0.05). Conclusion: The flexural strength values of tested flowable composite resins were found lower when compared with hybrid composite resin. Although a reduction in the flexural strength values of flowable composite resins at the end of the waiting period was observed, the difference was not statistically significant. We think that new studies are needed to understand the effects of different waiting periods .

Özet

Amaç: Bu çalışmanın amacı üç akışkan kompozit rezinin suda bekletilme sürelerinin bükülme dayanım değerlerine olan etkisini değerlendirmektir. Gereç ve Yöntem: Çalışmada üç akışkan kompozit (Aeliteflo [AF]), (Tetric Flow [TF]), (Flowline [FL]) ve bir hibrid kompozit rezin (Venus [V]) kullanıldı. Hibrid kompozit rezin kontrol grubu olarak değerlendirildi. Örnekler International Standart Organization (ISO) standarlarına göre hazırlandı ve test edildi. 37± 1 "C distile suda 24 saat ve 1 ay boyunca bekletildikten sonra örneklerin bükülme dayanım değerleri tespit edildi. Universal test cihazına yerleştirilen her bir örneğe kırılana kadar 0.5 mmldk hız uygulandı. Kırıldığı andaki kuvvet tespit edilerek bükülme dayanım değeri hesaplandı. Veriler Kruskal Wallis, Mann Whitney U ve Wilcoxon Testi uygulanarak istatistiksel olarak değerlendirildi. Bulgular: 24 saat bekleme süresi sonunda örneklerin bükülme dayanım değerleri karşılaştırıldığında kompozit rezinler arasında farklılık istatistiksel olarak önemli bulunmuştur (p 0.05). I ay bekleme süresi sonunda örneklerin bükülme dayanım değerleri karşılaştırıldığında ise kompozit rezinler arasında farklılık istatistiksel olarak önemli bulunmuştur (p 0.05). Sonuç: Test edilen akışkan kompozit rezinlerin bükülme dayanım değerleri (24 saat ve 1 ay sonunda) hibrid kompozit rezine göre daha düşük bulunmuştur. Akışkan kompozitlerin bekleme süreleri sonunda elde edilen bükülme dayanım değerlerinde ise zamanla azalma olmasına rağmen istatistiksel olarak önemli fark bulunamamıştır. Bekletilme süresinin etkinliğinin anlaşılması için farklı bekletilme sürelerinde yaptlan yeni çalışmalara gerek duyulduğunu düşünmekteyiz.

🔖

Cite This Article

HÜRMÜZLÜ, F., SİSO, Ş. H., EREN, D., BEKTAŞ, Ö. Ö. (2005). The effect of aging in water on the flexural strength of three flowable composite resins. Ondokuz Mayıs Üniv. Diş Hekimliği Derg., Cilt: 6 - Sayı: 2, 91–95. https://ajindex.com/articles/293251

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (17)

  1. Bonilla ED, Yashar M, Caputo AA. Fracture toughness of nine flowable resin composites. J Prosthet Dent. 2003; 89: 261-7
  2. Bayne SC, Thompson JY, Swift EJ Jr, Stamatiades P, Wilkerson M. A characterization of first-generation flowable composites. J Am Dent Assoc. 1998;129: 567-77
  3. Burgess JO, Norling BK, Rawls HR, Ong JL. Directly placed esthetic restorative materials. Compend Contin Educ Dent. 1996; 17: 734-46
  4. Unterbrink GL, Liebenberg WH. Flowable resin composites as "filled adhesives": literature review and clinical recommendations. Quintessence Int. 1999; 30: 249-57 5. Kawaguchi M, Fukushima T, Horibe T. Effect of monomer structure on the mechanical properties of light-cured composite resins. Dent Mater. 1989; 8: 40-5
  5. Manhart J, Chen HY, Hickel R. The suitability of packable resin composites for posterior restorations. J Am Dent Assoc. 2001; 132: 639-45
  6. Manhart J, Kunzelmann, Chen HY, Hickel R. Mechanical properties Mater. 2000; 16:33-40
  7. Peutzfeld A. Resin composites in dentistry: the monomer system. Eur J Oral Sci. 1997; 105: 97-116
  8. ISO: Dentistry- resin based filling materials. 1988; ISO 4049
  9. Zaimoğlu L. Mikrodoldurucu oranı farklı iki kompozit dolgunun mekanik özellikleri. AÜ Diş Hek Fak Derg. 1985; 12: 601-15
  10. Ban S, Anusavice KJ. Influence of test method on failure stress of brittle dental materials. J Dent Res. 1990; 69: 1791-9
  11. Kelly JR. Perspectives on Strength. Dent Mater. 1995; 11: 103-10
  12. Wang L, Perlatti P, Lopes IG, Pereira JC. Mechanical properties of dental restorative materials: relative contribution of labaratory test. J Appl Oral Sci. 2003; 11: 162-7
  13. Germain H, Swartz ML, Philips RW, Moore BK. Properties of microfilled composite resins as influenced by filler content. J DentRes. 1985; 64: 155-60
  14. Gladys S, Van MB, Braem M, Lambrechts P, Vanherle G. Comparative physico-mechanical characterization of new hybrid restorative materials with conventional glass-ionomer and resin composite restorative material. J Dent Res. 1997; 76: 883-94
  15. Abado LG, Santos Cruz AC, Fonseca RG, Vaz LG. The volumetric fraction of inorganic particles and the flexural strenght of composites for posterior teeth. J Dent. 2003; 31: 353-9
  16. Asmussen E, Peutzfeldt A. Influence of UDEMA, BIS-GMA and TEGDMA on selected mechanical properties of experimental resin composites. Dent Mater. 1998; 14: 51-6
  17. Manhart J, Kunzelmann KH, Chen HY, Hickel R. Mechanical properties of new composite restorative materials