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Journals / ADO Klinik Bilimler Dergisi / 2026 / Cilt: 15 Sayı: 2

Influence of Material Type, Thickness, and Cement Type on Optical Properties of CAD/CAM Laminate Restorations

CAD/CAM Lamina Restorasyonlarda Materyal Tipi, Kalınlık ve Siman Türünün Optik Özellikler Üzerindeki Etkisi

Lena Bal(ANKARA MEDİPOL ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ)0000-0003-3493-0137
Nihan Gonulol(19 mayıs university, faculty of dentistry)0000-0002-4149-6351
Pages
95–104
Publication Date
2026-05-20
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Among the evaluated factors, material type was identified as the most critical factor affecting ΔE00 values, while specimen thickness was the main determinant of ΔTP.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: The long-term success of laminate restorations depends not only on their mechanical strength but also on the stability of their optical properties.
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Key Findings & Data:This study aimed to evaluate the effects of CAD/CAM material type, thickness, and cement type on color change (ΔE00) and translucency parameter differences (ΔTP) of laminate restorations after UV aging.
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Conclusion & Impact:Among the evaluated factors, material type was identified as the most critical factor affecting ΔE00 values, while specimen thickness was the main determinant of ΔTP.
🔬Design:Araştırma Makalesi
📍Scope:200 specimens
⚙️Variables:Bilgisayar yardımlı tasarım · Diş laminatları · Kozmetik diş hekimliği

Abstract

Aim: The long-term success of laminate restorations depends not only on their mechanical strength but also on the stability of their optical properties. This study aimed to evaluate the effects of CAD/CAM material type, thickness, and cement type on color change (ΔE00) and translucency parameter differences (ΔTP) of laminate restorations after UV aging. Materials and Methods: A total of 200 specimens were prepared from five different CAD/CAM materials (CEREC feldspathic block, Cerasmart block, Vita Enamic block, Lava Ultimate block, and Grandio CAD/CAM block) and two thicknesses (0.7 mm and 1.2 mm). Specimens were divided according to cement type (dual-cure and light-cure). Color measurements (L*, a*, b*) were performed before and after UV aging, and color and translucency differences (ΔE00 and ΔTP) were calculated using the CIEDE2000 formula. UV aging was applied as an artificial aging procedure and was not included as an independent variable in the statistical analysis. Data were analyzed using three-way ANOVA according to material type, thickness, and cement type (p < 0.05). Results: Material type significantly influenced color changes (ΔE00) and the translucency parameter differences (ΔTP). Among the tested groups, the CEREC block (1.1 ± 0.3) demonstrated the least color change. In contrast, the Lava Ultimate block (12.7 ± 0.5) exhibited the most significant color change (p < 0.05). The lowest ΔTP differences were observed for Lava Ultimate block (-0.2 ± 0.2), Vita Enamic (-0.3 ± 0.4), and Cerasmart (-0.1 ± 0.4) (p < 0.05). Conclusion: All groups exhibited color changes that exceeded both the perceptibility and clinical acceptability thresholds. Changes observed after UV aging indicated a decrease in translucency. Among the evaluated factors, material type was identified as the most critical factor affecting ΔE00 values, while specimen thickness was the main determinant of ΔTP.

Özet

Amaç: Lamina restorasyonların uzun dönem klinik başarısı, yalnızca mekanik dayanımlarına değil; aynı zamanda renk stabilitesi ve translüsentlik gibi optik özelliklerinin korunmasına da bağlıdır. Bu çalışmada, UV yaşlandırma sonrası CAD/CAM materyal tipi, kalınlık ve siman türünün lamina restorasyonların renk değişimi (ΔE00) ve translüsensi parametresi değişimleri (ΔTP) üzerindeki etkilerinin değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Toplam 200 örnek, beş farklı CAD/CAM materyalinden (CEREC feldspatik blok, Cerasmart blok, Vita Enamic blok, Lava Ultimate blok ve Grandio CAD/CAM blok) ve iki farklı kalınlıkta (0.7 mm ve 1.2 mm) hazırlandı. Örnekler, simantasyon türüne göre (dual-cure ve light-cure) gruplara ayrıldı. Renk ölçümleri (L*, a*, b*) UV yaşlandırma öncesi ve sonrası gerçekleştirildi; renk ve translüsensi farkları (ΔE00 ve ΔTP) CIEDE2000 formülü kullanılarak hesaplandı. UV yaşlandırma, bir yaşlandırma prosedürü olarak uygulanmış olup istatistiksel analizde bağımsız değişken olarak değerlendirilmemiştir. Veriler, materyal tipi, kalınlık ve siman türüne göre üç yönlü ANOVA kullanılarak analiz edildi (p <0.05). Bulgular: Materyal tipi, ΔE00 ve ΔTP değerlerini istatistiksel olarak anlamlı düzeyde etkiledi. Gruplar arasında en düşük renk değişimi CEREC’te (1.1 ± 0.3) izlenirken, en yüksek renk değişimi Lava Ultimate’te (12.7 ± 0.5) saptandı (p <0.05). En düşük ΔTP değerleri ise Lava Ultimate (-0.2 ± 0.2), Vita Enamic (-0.3 ± 0.4), ve Cerasmart (-0.1 ± 0.4) gruplarında saptandı (p <0.05). Sonuç: Tüm gruplarda, algılanabilirlik ve klinik olarak kabul edilebilirlik eşiklerinin üzerinde renk değişimi saptandı. UV yaşlandırma sonrasında elde edilen bulgular, translüsensinin azaldığını ortaya koymuştur. Değerlendirilen faktörler arasında, CAD/CAM materyal tipi ΔE00 değerlerini etkileyen en kritik faktör olarak belirlenirken, örnek kalınlığı ΔTP değerlerinin temel belirleyicisi olarak bulundu.

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Cite This Article

Bal, L., Gonulol, N. (2026). Influence of Material Type, Thickness, and Cement Type on Optical Properties of CAD/CAM Laminate Restorations. ADO Klinik Bilimler Dergisi, Cilt: 15 Sayı: 2, 95–104. https://doi.org/10.54617/adoklinikbilimler.1801099

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