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SHEAR BOND STRENGTH OF PREVENEERED POSTERIOR STAINLESS STEEL CROWNS

ÖNCEDEN VENEERE EDİLMİŞ ARKA GRUP PASLANMAZ ÇELİK KURONLARIN KESME BAĞLANMA GÜÇLERİ

Journal Name:

  • Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

Publication Year:

  • 2006

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Purpose: The purpose of this study was to evaluate the shear bond strength of veneer materia/ of posterior preveneered stain/ess steel crowns (SSCs). Methods: 32 preveneered SSCs (lower first primary molar=8, upper first primary molar=8, lower second primary molar=8 and upper second primary molar=8) were used for this study. Specimens were kept in humid environment at 37°C for thirty days and exposed to thermocycinng. Then, each veneered crown was cemented on one of the cast dies. After twenty-four hours, force was applied on the occlusal surfaces of the crowns according to primary molar occlusal relationship. The fractured specimens were photographed under X10 magnification with a stereomicroscope. Characterizations of the failure modes and fracture extents of the veneer material were scored. Data were anayyzed statistical Results: For bond strength, there was a statistica/y difference between crown groups (P<0.05). However, there were no significant differences between both failure modes and fracture extents of the crown groups (P>0.05). Conclusions: This study showed shear bond strength, failure modes and fracture extents of the preformed posterior esthetic crowns.
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Abstract (Original Language): 
Amaç: Bu çalışmanın amacı, önceden veneere edUmşş arka grup pas/anmaz çelik kuronların (PÇK) veneer materyalinin kesme bağlanma gücünü değerlendirmektir. Yöntemler: Bu çalışmada 32 adet önceden veneere edUmşş PÇK (alt 1. süt azı=8, üst 1. süt azı=8, alt 2. süt azı=8 ve üst 2. süt azı=8) kul/anılmıştır. Örnekler 30 gün boyunca 370C'de nemi ortamda tutulmuş ve termal sik/us işlemine tabi tutulmuşlardır. Daha sonra, her brr veneere edümiş kuron metal güdüklere simante edilmiştir. 24 saat sonra, süt azı okluzal ilişkisine göre kuron/ar/n okluzal yüzlerine kuvvet uygulanmıştır. Kırılmış olan örnekler steromikroskop l/e 10X büyütme altında fotoğraf/anmştrr. Veneer materyallerinin başarısızlık tipleri ve kırık yaygınlıkları skor/anmış tır. Veriler istatistiksel olarak analiz edilmiştir. Bulgular: Bağlanma gücü için, kuron grupaarı arasında istatistiksel olarak anlamlı farklılık bulunmuştur (P<0,05). Bununla beraber, kuron grupaarının hem başarısızlık tipleri hem de kırık yaygınııkları arasında anlamıı farklılık bulunmamıştır (P>0,05). Sonuçlar: Bu çaiışma, önceden veneere edümşş arka grup estetik kuronların kesme bağ/anma gücünü, başarısızlık tip/erini ve krrık yaygınııklarını ortaya koymuştur.
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  • 1
25-29
  • Turkish

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