Journals / Clinical Dentistry and Research / 2020 / Cilt: 44 - Sayı: 1

EVALUATION OF PEEL BOND STRENGTH OF A SOFT SILICONE LINER TO PRE-POLYMERIZED CAD-CAM POLYMERS USED FOR DIGITAL COMPLETE DENTURES

DİJİTAL TAM PROTEZLERDE KULLANILAN PREPOLİMERİZE CAD-CAM PMMA POLİMERLERİNE SİLİKON YUMUŞAK ASTAR MATERYALİNİN SIYRILMA DİRENCİNİN DEĞERLENDİRİLMESİ

Pages
21–29
Publication Date
2022-10-11
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)

In both thermalcycled and thermo-mechanical cycled (chewing simulator)groups, all materials showed a decrease in peel bond strengthvalues (p

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Background and Aim: The purpose of this in vitro study wasto compare the effect of the soft silicone liner on the peel bondstrength of different computer-aided design and manufacturing(CAD-CAM) poly methyl methacrylate (PMMA)-based polymersand conventional resin materials using different treatmentprotocols.Materials and Methods: Eighty-four rectangular-shapedspecimens (N=84) were fabricated from 2 different CADCAMPMMA-based polymers (Group A and group P) and 1conventional PMMA (Group C).
📊
Key Findings & Data:The treatment protocol wascomposed of 4 subgroups (n=7), which were treated as follows:1) no procedure was performed before and after relining(control group); 2) no procedure was performed before relining,however thermo-mechanical aging (chewing simulator) wasapplied after relining; 3) thermal cycling was applied beforerelining; 4) thermal cycling was applied before relining, followedby thermo-mechanical aging (chewing simulator).
💡
Conclusion & Impact:In both thermalcycled and thermo-mechanical cycled (chewing simulator)groups, all materials showed a decrease in peel bond strengthvalues (p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background and Aim: The purpose of this in vitro study wasto compare the effect of the soft silicone liner on the peel bondstrength of different computer-aided design and manufacturing(CAD-CAM) poly methyl methacrylate (PMMA)-based polymersand conventional resin materials using different treatmentprotocols.Materials and Methods: Eighty-four rectangular-shapedspecimens (N=84) were fabricated from 2 different CADCAMPMMA-based polymers (Group A and group P) and 1conventional PMMA (Group C). The treatment protocol wascomposed of 4 subgroups (n=7), which were treated as follows:1) no procedure was performed before and after relining(control group); 2) no procedure was performed before relining,however thermo-mechanical aging (chewing simulator) wasapplied after relining; 3) thermal cycling was applied beforerelining; 4) thermal cycling was applied before relining, followedby thermo-mechanical aging (chewing simulator). Thereafter,90° peel tests were carried out with a crosshead speed of10 mm/min using a universal testing machine. Peel strengthwas calculated (MPa), and the mode of failure was determined.The surface structure of the materials was evaluated using ascanning electron microscope (SEM). The data were statisticallyanalyzed using a 3-way ANOVA analysis and multiplecomparison tests with Bonferroni correction (á=0.05).Results: Peel strength values ranged between 8.89 and 13.56MPa. There was no significant difference between the peelstrength values of tested materials (p>0.05). In both thermalcycled and thermo-mechanical cycled (chewing simulator)groups, all materials showed a decrease in peel bond strengthvalues (p

Özet

Amaç: Bu in vitro çalışmanın amacı; farklı tedavi protokolleri kullanarak yumuşak silikon astarın farklı bilgisayar destekli tasarım ve üretim (CAD-CAM) poli metil metakrilat (PMMA) bazlı polimerlerin ve geleneksel akrilik rezin malzemelerinin sıyrılma mukavemeti üzerindeki etkisini karşılaştırmaktır. Gereç ve Yöntemler: Dikdörtgen şeklindeki 84 örnek (N=84) 2 farklı CAD-CAM PMMA yapısındaki polimer ve geleneksel akrilik rezin malzemelerinden elde edilmiştir. Tedavi protokolü 4 alt grup olacak şekilde;1) Astarlama öncesi ve sonrasında herhangi bir işlem uygulanmamıştır. 2) Astarlama öncesinde herhangi bir işlem uygulanmamış, astarlama sonrasında termomekanik yaşlandırma (çiğneme simulatörü) uygulanmıştır. 3) Astarlama öncesinde sadece ısıl döngü işlemi uygulanmıştır. 4) Astarlama öncesinde ısıl döngü işlemi uygulanmış bunu takiben astarlama işlemi sonrası termo-mekanik yaşlandırma (çiğneme simulatörü) uygulanmıştır. Uygulanan tedavi protokolleri sonrasında 90° sıyrılma testleri, universal test cihazı kullanılarak 10 mm/dak hızında yapılmıştır. Sıyrılma direnci (MPa) hesaplanarak başarısızlık şekilleri belirtilmiştir. Malzemelerin yüzey özellikleri tarama elektron mikroskobu (SEM) kullanılarak ortaya konulmuş, datalar, 3-yönlü varyans analizi ve Bonferroni düzeltmesi uygulanarak çok yönlü karşılaştırma yardımıyla değerlendirilmiştir (α=0,05). Bulgular: Sıyrılma direnci değerleri 8,89 ve 13,56 MPa arasında bulunmuştur. Malzemelerin sıyrılma direnci değerleri arasında istatistiksel bir fark gözlenmemiştir (p>0,05). Hem ısıl döngü işlemi hem de termo-mekanik yaşlandırma (çiğneme simulatörü) uygulanan bütün gruplarda sıyrılma direncinde bir azalma gözlenmiştir (p

🔖

Cite This Article

MURAT, S., BATAK, B. (2022). EVALUATION OF PEEL BOND STRENGTH OF A SOFT SILICONE LINER TO PRE-POLYMERIZED CAD-CAM POLYMERS USED FOR DIGITAL COMPLETE DENTURES. Clinical Dentistry and Research, Cilt: 44 - Sayı: 1, 21–29. https://ajindex.com/articles/474528

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Waters MG, Jagger RG. Mechanical properties of an experimental denture soft lining material. J Dent 1999; 27: 197-202
  2. Sánchez-Aliaga A, Pellissari CV, Arrais CA, Michél MD, Neppelenbroek KH, Urban VM. Peel bond strength of soft lining materials with antifungal to a denture base acrylic resin. Dent Mater J 2016; 35: 194-203
  3. Sinobad D, Murphy WM, Huggett R, Brooks S. Bond strength and rupture properties of some soft denture liners. J Oral Rehabil 1992; 19: 151-160
  4. Kutay O, Bilgin T, Sakar O, Beyli M. Tensile bond strength of a soft lining with acrylic denture base resins. Eur J Prosthodont Restor Dent 1994; 2: 123-126
  5. Gundogdu M, Yesil Duymus Z, Alkurt M. Effect of surface treatments on the bond strength of soft denture lining materials to an acrylic resin denture base. J Prosthet Dent 2014; 112: 964-971
  6. Polyzois GL. Adhesion properties of resilient lining materials bonded to light-cured denture resins. J Prosthet Dent 1992; 68: 854-858
  7. Kawano F, Dootz ER, Koran III A, Craig RG. Bond strength of six soft denture liners processed against polymerized and unpolymerized poly(methyl methacrylate). Int J Prosthodont 1997; 10: 178-182
  8. Pinto JR, Mesquita MF, Nóbilo MA, Henriques GE. Evaluation of varying amounts of thermal cycling on bond strength and permanent deformation of two resilient denture liners. J Prosthet Dent 2004; 92: 288-293
  9. Gale MS, Darvell BW. Thermal cycling procedures for laboratory testing of dental restorations. J Dent 1999; 27: 89-99
  10. Kulak-Ozkan Y, Sertgoz A, Gedik H. Effect of thermocycling on tensile bond strength of six silicone-based, resilient denture liners. J Prosthet Dent 2003; 89: 303-310
  11. Oguz S, Mutluay MM, Dogan OM, Bek B. Effect of thermocycling on tensile strength and tear resistance of four soft denture liners. Dent Mater J 2007; 26: 296-302
  12. Mutluay MM, Tezvergil-Mutluay A. The influence of cyclic stress on surface properties of soft liners. Odontology 2017; 105: 214-221
  13. Oyafuso DK, Ozcan M, Bottino MA, Itinoche MK. Influence of thermal and mechanical cycling on the flexural strength of ceramics with titanium or gold alloy frameworks. Dent Mater 2008; 24: 351- 356
  14. Vásquez VZ, Ozcan M, Kimpara ET. Evaluation of interface characterization and adhesion of glass ceramics to commercially pure titanium and gold alloy after thermal- and mechanical-loading. Dent Mater 2009; 25: 221-231. 15. al-Athel MS, Jagger RG. Effect of test method on the bond strength of a silicone resilient