Journals / Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi / 2008 / Cilt: 18 - Sayı: 1

The evaluation of the effects of different acrylic molding techniques on the mechanical properties of acrylic resins

Farklı akril tepim yöntemlerinin akrilik malzemenin mekanik özelliklerine etkisinin incelenmesi

Pages
14–18
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

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

Meliodent with injection molding has the lowest flexural strength values (p

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: The purpose of this study was to investigate the effects of two different acrylic molding techniques on flexural strength and hardness of acrylic resins.
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Key Findings & Data:For each group, 8 specimens for each material ( 65 mm length, 10 mm width, 2,5 mm height) were prepared.
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Conclusion & Impact:Meliodent with injection molding has the lowest flexural strength values (p
🔬Design:Research Article
📍Scope:8 specimens
⚙️Variables:Domain Parameters

Abstract

Purpose: The purpose of this study was to investigate the effects of two different acrylic molding techniques on flexural strength and hardness of acrylic resins. Material and Method: In this study, two different test groups were used; with conventional molding method Meliodent and Entacryl, with injection molding method Ivocap Plus and Meliodent. For each group, 8 specimens for each material ( 65 mm length, 10 mm width, 2,5 mm height) were prepared. The flexural strength (FS) values of the specimens were assessed by 3 point bending test using a universal testing machine (5mm/min cross- head speed) and then the fractured specimens were used for the determination of the Knoop hardness number (KHN) using a digital micro-hardness tester.Results: As for the flexural strength values, as Entcryl has (p0.05). Meliodent with injection molding has the lowest flexural strength values (p

Özet

Amaç: Çalışmamızın amacı, iki farklı akril muflalama tekniğinin akrilik rezinlerin bükülme dayanımı ve sertlikleri üzerindeki etkisi incelenmektir. Gereç ve Yöntem: Çalışmada iki farklı grup ve materyal olarak da her grup içinde iki farklı materyal test edildi: konvan- siyonel yöntemle muflalanan Meliodent ve Entacryl, enjeksiyon yöntemiyle muflalalan Ivocap Plus ve Meli-dent. Her bir alt grup için 8 adet örnek (65mm uzun- luk, 10 mm genişlik, 2.5mm yükseklik) hazırlandı. Örnek- lerin bükülme dayanımları üniversal test cihazında üç nokta bükülme testi uygulanarak bulundu (5 mm/ dakika başlık hızı). Kırılan örnekler daha sonra sertlik testleri için kullanıldı. Dijital mikro sertlik test cihazı kullanılarak, her bir örnek için Knoop sertlik değeri tespit edildi. Bulgular: Entacryl istatistiksel olarak (p0.05). Enjeksiyon yöntemi kullanılarak muflalanılan Meliodent’in istatistiksel olarak en düşük bükülme dayan- ımına sahip olduğu tespit edildi (p0.05). Ivocap Plus’ın istatistiksel olarak en düşük sertlik değerine sahip olduğu tespit edildi (p

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Cite This Article

AKOVA, T., ÖZKÖK, A., ÖZÇELİL, M. T. B., AYTUTULDU, N. (2022). The evaluation of the effects of different acrylic molding techniques on the mechanical properties of acrylic resins. Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi, Cilt: 18 - Sayı: 1, 14–18. https://ajindex.com/articles/452701

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References (13)

  1. Jorge JH, Giampaolo ET, Machado AL, Vergani CE. Cytotoxicity of denture base acrylic resins: A literature review. J Prosthet Dent 2003; 90: 190-3
  2. Faot F, Costa MA, Cury AA, Garcia RCM. Impact strength and fracture morphology of denture acrylic resins. J Prosthet Dent 2006; 96: 367-73
  3. Vallittu PK, Lassila VP, Lappalainen R. Evaluation of damage to removable dentures in two cities in Finland. Acta Odontol Scand 1993; 51(6): 363-9
  4. Hargreaves AS. The prevalence of fractured dentures. A survey. Br Dent J 1969; 126(10): 451-5
  5. Darbar UR, Huggett R, Harrison A. Denture fracture – a survey. Br Dent J 1994; 176(9): 342-5
  6. Memon MS, Yunus N, Razak AA. Some mechanical properties of a Highly Cross-Linked, Microwave- polymerized, Injection- Molded Denture Base Polymer. Int J Prosthodont 2001; 14: 214-8
  7. Leo´n BLT, Cury AADB, Garcia RCMR Water sorption, solubility, and tensile bond strength of resilient denture lining materials polymerized by different methods after thermal cycling. J Prosthet Dent 2005; 93: 282-7
  8. McKinstry RE. Microwave processing of permanent soft denture liners. Compendium 1991; 12: 32-7
  9. Keenan PLJ, Radford DR, Clark RKF. Dimenstional change in complete dentures fabricated by injection molding and microwave processing. J Prosthet Dent 2003; 89: 37-44
  10. Karacaer Ö, Polat TN, Tezvergil A, Lasilla LVJ, Vallittu PK. The effect of length and concentration of glass fibers on the mechanical properties of an injection- and a compression-molded denture base polymer. J Prosthet Dent 2003; 90: 385-93
  11. Anusavice KJ. Phillips’ Science of Dental Materials Middle East and African Edition. 11 th ed. Elsevier Saunders, 2003. Chapter 4
  12. Yoldas O, Akova T, Uysal H. Influence of different indentation load and dwell time on Knoop microhardness tests for composite materials. Polymer Testing 2004; 23: 343-346 13. Lončar A, Vojvodić D, Matejiček F, Jerolimov V. Flexural strength of denture base materials. Acta Stomatol Croat 2006; 40:151-61. 14. http://www.orplab.com/Ivocap Plus.html 15. Zappini G, Kammann A, Wachter W. Comparison of fracture tests of denture base materials. J Prosthet Dent 2003; 90: 578-85
  13. Uzun G, Hersek N. Comparison of fracture resistance of six denture base acrylic resins. J Biomater Appl 2002; 17: 19-29.