Journals / Cumhuriyet Dental Journal / 2019 / Cilt: 22 - Sayı: 2

EFFECTS OF Er,Cr:YSGG LASER ON MICROLEAKAGE OF A SELF-ETCH ADHESIVE SYSTEM

Er,Cr:YSGG Lazerin Self Etch Adeziv Sistemde Mikrosızıntıya Etkisi

Pages
185–191
Publication Date
2022-10-11
DOI
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Significantly highmicroleakage was observed in G4 in comparison to G1 and G3 (p = 0.001, p = 0.003).Conclusions: Preparation and etching by using an Er,Cr:YSGG laser does not decreasemicroleakage, but this may also be due to the properties of the self-etch adhesive.Further clinical research and long-term follow-ups are needed to analyze the findingsin more detail.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: The purpose of this in-vitro study was to evaluate the microleakage of aself-etch dentin adhesive system in cavities prepared by a conventional dental bur andan Er,Cr:YSGG laser.Materials and Methods: Forty extracted premolar teeth were selected randomly.Standardized Class V cavity preparations were placed in the buccal and lingual surfacesusing a bur and an Er,Cr:YSGG laser.
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Key Findings & Data:Eighty preparations were randomly assigned to4 groups of 20 samples each and restored as follows: (G1, Control group) Bur; (G2)Bur + Laser etch; (G3) Er,Cr:YSGG laser; (G4) Er,Cr:YSGG laser + Laser etch.
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Conclusion & Impact:Significantly highmicroleakage was observed in G4 in comparison to G1 and G3 (p = 0.001, p = 0.003).Conclusions: Preparation and etching by using an Er,Cr:YSGG laser does not decreasemicroleakage, but this may also be due to the properties of the self-etch adhesive.Further clinical research and long-term follow-ups are needed to analyze the findingsin more detail.
🔬Design:Research Article
📍Scope:20 samples
⚙️Variables:Domain Parameters

Abstract

Objectives: The purpose of this in-vitro study was to evaluate the microleakage of aself-etch dentin adhesive system in cavities prepared by a conventional dental bur andan Er,Cr:YSGG laser.Materials and Methods: Forty extracted premolar teeth were selected randomly.Standardized Class V cavity preparations were placed in the buccal and lingual surfacesusing a bur and an Er,Cr:YSGG laser. Eighty preparations were randomly assigned to4 groups of 20 samples each and restored as follows: (G1, Control group) Bur; (G2)Bur + Laser etch; (G3) Er,Cr:YSGG laser; (G4) Er,Cr:YSGG laser + Laser etch. Thecavities were restored with a self-etch adhesive system (GC, Unifil Bond) andcomposite resin (GC, Gradia). The preparations were sectioned buccolingually intothree parts and scored for microleakage using a light stereoscope. The data wereanalyzed with Mann-Whitney U test, and Chi-squared test was used for comparisonsacross groups.Results: In all groups, there was higher microleakage in the gingival margin than in theocclusal margin. In the control group (G1), the lowest microleakage values wereobtained in all the cavities. In comparison among the groups, statistically significantmicroleakage values were obtained in the occlusal margins. Significantly highmicroleakage was observed in G4 in comparison to G1 and G3 (p = 0.001, p = 0.003).Conclusions: Preparation and etching by using an Er,Cr:YSGG laser does not decreasemicroleakage, but this may also be due to the properties of the self-etch adhesive.Further clinical research and long-term follow-ups are needed to analyze the findingsin more detail.

Özet

Amaç: Bu in-vitro çalışmanın amacı, geleneksel yöntem ve Er,Cr:YSGG lazer ile hazırlanan kavite preparasyonlarında; self etch dentin adeziv sisteminin mikrosızıntısı açısından değerlendirilmesidir. Gereç ve Yöntemler: Kırk adet yeni çekilmiş premolar diş rasgele seçildi. Standardize edilmiş Sınıf V kavite preparasyonları frez ve Er,Cr:YSGG lazer kullanılarak bukkal ve lingual yüzeylere hazırlandı. Her biri 20 örnekten oluşan 80 örnek kavite yüzeyi hazırlama yöntemine göre 4 deney grubuna rastgele ayrıldı: (G1, Kontrol grubu) Frez; (G2) Frez + Lazer Pürüzlendirme; (G3) Er,Cr:YSGG lazer; (G4) Er,Cr:YSGG lazer + Lazer Pürüzlendirme. Ardından tüm kavitelere self etch adeziv bonding ajanı (GC, Unifil Bond) uygulanarak kompozit rezin (GC, Gradia) ile restore edildi. Örnekler bukko-lingual yönde üçe bölündü ve ışık mikroskobu altında incelenerek, mikro-sızıntı açısından skorlandı. Elde edilen veriler NCSS 2007 ve PASS 2008 İstatistik Yazılımı (Utah, ABD) ile analiz edildi. Gruplar arasında bulguları karşılaştırırken Mann Whitney U testi, ki-kare testi uygulandı. Bulgular: Tüm gruplarda gingival marjinde, okluzal marjine göre daha yüksek mikrosızıntı bulundu. Kontrol grubunda (G1) tüm kavitelerde en düşük mikrosızıntı değerleri elde edildi. Gruplar arasındaki karşılaştırmalarda; okluzal marjinlerde mikrosızıntı açısından istatistiksel olarak anlamlı değerler elde edildi. G4’de, G’e ve G3’e göre istatistiksel olarak anlamlı düzeyde daha yüksek mikrosızıntı değerleri gözlendi (p=0,001, p=0,003). Sonuçlar: Bulgulara göre; Er,Cr:YSGG lazerle preparasyon ve pürüzlendirme işleminin mikrosızıntıyı azaltmadığı ancak bunun self etch adeziv sistemlerin özelliklerinden de kaynaklanabileceği belirlenmiştir. Bulguları analiz etmek için daha ileri klinik araştırmalar ve uzun vadeli takip gereklidir.

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Cite This Article

Onur, Ş. G., Durhan, M. A., Tanboğa, İ., Giray, F. E. (2022). EFFECTS OF Er,Cr:YSGG LASER ON MICROLEAKAGE OF A SELF-ETCH ADHESIVE SYSTEM. Cumhuriyet Dental Journal, Cilt: 22 - Sayı: 2, 185–191. https://ajindex.com/articles/476964

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