Microleakage of Indirect Composite Resin Luted WithDifferent Adhesive Cements
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Tarih
2021
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Objective: To evaluate the influence of different adhesive cements on the microleakage of proximal surfaces in class II indirectcomposite resin restorations. Material and methods: Twenty-four human extracted caries-free third molars were selected. Standard class II cavities were preparedon the mesial and distal surfaces with margins located above the cementoenamel junction (CEJ). Cavities were standardized by fixingthe handpiece in a parallelometer during preparation. Treatment groups were divided into 4 cements: GCem LinkAce (GCm) (GC,Japan), Panavia F 2.0 (P) (Kuraray, Japan), RelyX U200 (Rx) (3M ESPE, USA), Superbond C&B (SB) (SunMedical, Japan) andcontrol (V) (Variolink II, Ivoclar Vivadent, Schaan, Liechtenstein). In each tooth, the mesial cavity was set as the experimental and thedistal as a control. Restorations were fabricated with an indirect composite resin (Gradia; GC, Japan) and luted into cavities.Specimens were thermocycled (5-55Cº,5000 cycles) and immersed in 50% silver nitrate solution for 24 hours. The teeth weresectioned mesiodistally and evaluated for microleakage using digital image analysis (24x; Leica optical microscope, Germany). Theordinal scale used was: 0-4 (0= no microleakage and 4= dye penetration along axial wall). Mean values for each group were recordedand statistically analyzed using Wilcoxon Signed Ranks Test. (alpha=0,05) Results: There were no significant differences among occlusal microleakage of all groups (GCm:0; P: 0,17±.0,4; Rx:0 andSB:0,17±.0,4) (P>0,05). The least microleakage (?m±SD) was recorded for GCm and Rx self-adhesive cements for occlusal (0.00;0,00) and gingival (0,83±0,4; 0,50±0,5) parts, respectively. The highest microleakage was noted with SB and P at the gingival parts(2,0±1,4; 1,5±0,84), respectively and the difference was significant compared to the other groups (P<0,05).Conclusions: Tested self-adhesive dual-curing resin cements exhibited simulated long-term microleakage stability while self-curingresin cement yielded highest microleakage..
Açıklama
Anahtar Kelimeler
Kaynak
Ege Üniversitesi Diş Hekimliği Fakültesi
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Cilt
42
Sayı
2
