Influence of Surface Preparation Methods on Fracture Behavior of Nanohybrid and Monochromatic Composite Resins: A Stereomicroscopic Analysis

Seda Nur Yıldız; Cafer Türkmen

Makale detayları

Influence of Surface Preparation Methods on Fracture Behavior of Nanohybrid and Monochromatic Composite Resins: A Stereomicroscopic Analysis

Yazarlar:

Seda Nur Yıldız | Cafer Türkmen

Yayıncı:

Marmara University

Ana Başlıklar:

Restorative Dentistry

Dergi:

European Journal of Research in Dentistry Vol.9 Issue 1, pp.48-54

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341437

pISSN:

2630-6247

Anahtar kelimeler:

Özet:

 Objective: This study investigates the effect of different surface preparation methods on the fracture behavior of nanohybrid and monochromatic composite resins. Materials and Methods: Sixty extracted anterior teeth were embedded in acrylic and divided into two groups to be restored with monochromatic composite resin Omnichroma, Tokuyama, Japan and nanohybrid composite resin Essentia, GC, Japan. Each group was subdivided based on roughening method: acid-etched control, thickmedium-grit disc and Er,Cr: YSGG laser. All teeth were restored using universal adhesive system, subjected to 5000 thermal cycles, and stored in distilled water at 37C for 24h. Shear bond strength were measured using a universal testing machine Shimadzu Corp., Kyoto, Japan, modes of failure were evaluated using a stereomicroscope Leica-M27.5, Leica Microsystems, Germany. The data were analyzed using IBM SPSS V23. Yates Correction and Monte Carlo Corrected Fishers Exact Test were used to examine the relationship between composites, surface preparation techniques and fracture types. The significance level was set at p0.05. Results: Surface roughening improved the bond strength. Adhesive fractures were predominant in most groups, except in the Er,Cr: YSGG laser-treated samples, where mixed fractures were more common. There was no statistically significant difference between composites, fracture types p1 or between surface preparation techniques and fracture types p0.235. Conclusion: Surface preparation methods such as acid etching and mechanical roughening resulted in higher adhesive failure rates, while laser etching led to more mixed failures. Laser etching is a minimal invasive technique with promising results but requires further research to optimize its clinical application.

 Objective: This study investigates the effect of different surface preparation methods on the fracture behavior of nanohybrid and monochromatic composite resins. Materials and Methods: Sixty extracted anterior teeth were embedded in acrylic and divided into two groups to be restored with monochromatic composite resin Omnichroma, Tokuyama, Japan and nanohybrid composite resin Essentia, GC, Japan. Each group was subdivided based on roughening method: acid-etched control, thickmedium-grit disc and Er,Cr: YSGG laser. All teeth were restored using universal adhesive system, subjected to 5000 thermal cycles, and stored in distilled water at 37C for 24h. Shear bond strength were measured using a universal testing machine Shimadzu Corp., Kyoto, Japan, modes of failure were evaluated using a stereomicroscope Leica-M27.5, Leica Microsystems, Germany. The data were analyzed using IBM SPSS V23. Yates Correction and Monte Carlo Corrected Fishers Exact Test were used to examine the relationship between composites, surface preparation techniques and fracture types. The significance level was set at p0.05. Results: Surface roughening improved the bond strength. Adhesive fractures were predominant in most groups, except in the Er,Cr: YSGG laser-treated samples, where mixed fractures were more common. There was no statistically significant difference between composites, fracture types p1 or between surface preparation techniques and fracture types p0.235. Conclusion: Surface preparation methods such as acid etching and mechanical roughening resulted in higher adhesive failure rates, while laser etching led to more mixed failures. Laser etching is a minimal invasive technique with promising results but requires further research to optimize its clinical application.

 Objective: This study investigates the effect of different surface preparation methods on the fracture behavior of nanohybrid and monochromatic composite resins. Materials and Methods: Sixty extracted anterior teeth were embedded in acrylic and divided into two groups to be restored with monochromatic composite resin Omnichroma, Tokuyama, Japan and nanohybrid composite resin Essentia, GC, Japan. Each group was subdivided based on roughening method: acid-etched control, thickmedium-grit disc and Er,Cr: YSGG laser. All teeth were restored using universal adhesive system, subjected to 5000 thermal cycles, and stored in distilled water at 37C for 24h. Shear bond strength were measured using a universal testing machine Shimadzu Corp., Kyoto, Japan, modes of failure were evaluated using a stereomicroscope Leica-M27.5, Leica Microsystems, Germany. The data were analyzed using IBM SPSS V23. Yates Correction and Monte Carlo Corrected Fishers Exact Test were used to examine the relationship between composites, surface preparation techniques and fracture types. The significance level was set at p0.05. Results: Surface roughening improved the bond strength. Adhesive fractures were predominant in most groups, except in the Er,Cr: YSGG laser-treated samples, where mixed fractures were more common. There was no statistically significant difference between composites, fracture types p1 or between surface preparation techniques and fracture types p0.235. Conclusion: Surface preparation methods such as acid etching and mechanical roughening resulted in higher adhesive failure rates, while laser etching led to more mixed failures. Laser etching is a minimal invasive technique with promising results but requires further research to optimize its clinical application.

 Amaç: Bu çalışma, farklı yüzey hazırlık yöntemlerinin nanohibrit ve monokromatik kompozit rezinlerin kırılma davranışı üzerindeki etkisini araştırmayı amaçlamaktadır. Gereç ve Yöntem: Altmış adet çekilmiş anterior diş, akriliğe gömülüp, monokromatik Omnichroma, Tokuyama, Japonya ve nanohibrit kompozit rezin Essentia, GC, Japonya ile restore edilmek üzere iki gruba ayrılmıştır. Tüm gruplar, yüzey pürüzlendirme yöntemi olarak asitle pürüzlendirme, kalınorta grenli disk ve Er,Cr: YSGG lazer kullanılarak alt gruplara ayrılmıştır. Tüm dişler, üniversal bir adeziv sistemle restore edilip, 5000 termal döngüye tabi tutulmuş ve 37Cde distile suda 24 saat bekletilmiştir. Makaslama bağlanma dayanımı, bir universal test cihazı Shimadzu Corp., Kyoto, Japonya kullanılarak ölçülmüş ve kırılma tipleri stereomikroskop Leica M27.5, Leica Microsystems, Almanya ile değerlendirilmiştir. Veriler IBM SPSS V23 ile analiz edilmiştir. Kompozit tipleri, yüzey hazırlık teknikleri ve kırılma türleri arasındaki ilişkiyi incelemek için Yates Düzeltmesi ve Monte Carlo Düzeltmeli Fisherın Kesin testi kullanılmıştır. Önem düzeyi p0,05 olarak belirlenmiştir. Bulgular: Yüzey pürüzlendirmesinin bağlanma dayanımını arttırdığı görülmüştür. Çoğu grupta adeziv kırılmalar baskınken, Er,Cr: YSGG lazerle örneklerde karışık kırılmalar daha yaygın bulunmuştur. Kompozit tipleri ile kırılma türleri arasında p1 ve yüzey hazırlık teknikleri ile kırılma türleri arasında p0.235 anlamlı bir ilişki bulunmamıştır. Sonuç: Asit ile pürüzlendirme ve mekanik pürüzlendirme gibi yüzey hazırlık yöntemleri, daha yüksek adeziv başarısızlık oranlarına yol açarken, lazer ile pürüzlendirme daha fazla karışık kırılmaya neden olmuştur. Lazer ile pürüzlendirme, minimal invaziv bir teknik olup ve umut verici sonuçlar sunmaktadır, ancak klinik uygulamasını optimize etmek için daha fazla araştırma gerekmektedir.

Makale detayları

Influence of Surface Preparation Methods on Fracture Behavior of Nanohybrid and Monochromatic Composite Resins: A Stereomicroscopic Analysis

Yazarlar:

Seda Nur Yıldız | Cafer Türkmen

Yayıncı:

Marmara University

Ana Başlıklar:

Restorative Dentistry

Dergi:

European Journal of Research in Dentistry Vol.9 Issue 1, pp.48-54

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341437

pISSN:

2630-6247

Monochromatic composite resin

nanohybrid composite resin

fracture type

surface preparation techniques

dental enamelMonokromatik kompozit rezin

nanohibrit kompozit rezin

kırılma tipi

yüzey hazırlık yöntemleri

diş minesi

Sayı

Makale detayları

Yazarlar: Seda Nur Yıldız | Cafer Türkmen

Yayıncı: Marmara University

Ana Başlıklar: Restorative Dentistry

Dergi: European Journal of Research in Dentistry Vol.9 Issue 1, pp.48-54

Belge Tipi: Makale

Yayın Tarihi: 4/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001341437

pISSN: 2630-6247

Sayı

Yazarlar:

Seda Nur Yıldız | Cafer Türkmen

Yayıncı:

Marmara University

Ana Başlıklar:

Restorative Dentistry

Dergi:

European Journal of Research in Dentistry Vol.9 Issue 1, pp.48-54

Belge Tipi:

Makale

Yayın Tarihi:

4/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341437

pISSN:

2630-6247