Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
Comparison of the Different Self-Adhesive Composite's Shear Bond Strength and Microleakage on Caries- Affected Dentin with Using Er:YAG Laser
Er:YAG Lazer Kullanılarak Hazırlanmış Çürükten Etkilenmiş Dentinde Farklı Self-Adeziv Kompozitlerin Bağlantılarının ve Mikrosızıntılarının Karşılaştırılması
Makbule Tuğba TUNÇDEMİRa, Bora ÖZTÜRKb
aKonya Necmettin Erbakan University Faculty of Dentistry, Department of Restorative Dentistry, Konya TURKEY
bPrivate Dentist, Konya, TURKEY
Turkiye Klinikleri J Dental Sci. 2020;26(2):231-41
doi: 10.5336/dentalsci.2019-66212
Article Language: EN
Full Text
ABSTRACT
 Objective: The aims of this study was to evaluate the bond strength of the self-adhesive composites (SAC; Vertise Flow, Fusio Liquid Dentin, Constic) on caries-affected dentin, which was prepared using an Er:YAG laser, and microleakage of sound dentin by employing Er:YAG laser etching. Material and Methods: Two hundred twenty carious molar teeth were divided into two groups, i.e., laser and bur, respectively, according to different caries removal methods. SAC were applied with three adhesive techniques (i.e., no adhesive, selfetch, total etch, respectively). Shear bond strength tests were performed, and data were then analyzed by using one-way and two-way ANOVA and Tukey HSD tests (p<0.05). Class V cavities were prepared on the buccal and lingual surfaces of one hundred and ten non-carious molar teeth for microleakage evaluation. Laser etching was applied only on buccal cavities. The teeth were divided into subgroups for the evaluation of the bond strength of composite systems. The dye penetration method was employed to evaluate microleakage. Data were analyzed with the Friedman, Wilcoxon Signed Ranks, and Mann'Whitney U tests (p<0.05). Results: Significant differences between the caries removal methods and the shear bond strength of the composites were observed (p<0.05). The bond strength of the SAC group was less than that of the control group. The microleakage evaluation revealed statistically significant differences between the composites (p<0.05). A better sealing performance was observed for the control group. Conclusion: SAC did not provide good bonding and sealing performance without adhesive systems. Further clinical and laboratory studies are required to estimate the bond strength and microleakage values of SAC.

Keywords: Caries-affected dentin; Er: YAG laser; microleakage; self-adhesive composite; shear bond strength
ÖZET
 Amaç: Çalışmanın amacı; farklı self-adeziv kompozitlerin (SAC; Vertise Flow, Fusio Liquid Dentin, Constic) Er:YAG lazer kullanılarak hazırlanan çürükten etkilenmiş dentinde bağlanma dayanımlarını ve Er:YAG lazer ile etching yapılarak sağlam dentinde mikrosızıntılarını karşılaştırmaktır. Gereç ve Yöntemler: Çalışma için 220 çürüklü molar diş farklı çürük temizleme yöntemleri uygulanmak üzere (lazer-frez) önce iki gruba, sonra farklı adeziv teknikler (adeziv yok, self-etch, total-etch) ile beraber self-adeziv kompozitler ve geleneksel akıcı kompozit (ultimate flow) uygulanmak üzere alt gruplara ayrıldı (n=10). Makaslama bağlanma dayanımı testi uygulandı. Veriler iki yönlü ANOVA, tek yönlü ANOVA ve Tukey testleri ile analiz edildi (p<0,05). Mikrosızıntı deneyi için, 110 çürüksüz molar dişin bukkal ve palatinal yüzeylerine sınıf V kaviteler frezle açıldı. Sadece bukkal yüzdeki kavitelere lazer ile pürüzlendirme yapıldı. Dişler bağlanma dayanımında olduğu gibi adeziv sistemler ve kompozitler uygulanmak üzere alt gruplara ayrıldı. Mikrosızıntı deneyi için boya penetrasyon yöntemi kullanıldı. Elde edilen veriler Friedman, Wilcoxon Signed Ranks and Mann-Whitney U testleri ile analiz edildi (p<0,05). Bulgular: Sonuçlara göre, çürük temizleme yöntemleri ve kompozitler arasında bağlanma dayanımı değerlerinde farklılık tespit edildi (p<0,05). Self-adeziv kompozitler kontrol grubuna oranla daha düşük bağlanma dayanımı değerleri gösterdi. Mikrosızıntı değerlendirmesi sonrası ise kompozitler arasında istatistiksel olarak anlamlı farklılık tespit edildi (p<0,05). Kontrol grubunda daha iyi bir sızdırmazlık performansı görüldü. Sonuç: Self-adeziv kompozitler adeziv sistemler olmadan yeterli bağlanma ve sızdırmazlık sağlayamadılar. Self-adeziv kompozitlerin bağlanma dayanımları ve mikrosızıntıları ile ilgili daha fazla labaratuvar ve klinik çalışmaya ihtiyaç vardır.

Anahtar Kelimeler: Çürükten etkilenmiş dentin; Er: YAG lazer; mikrosızıntı; self-adeziv kompozit; makaslama bağlanma dayanımı
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