Farklı Yapı ve Kalınlıktaki İndirekt Restoratif Materyallerden İletilen Işık Gücünün Değerlendirilmesi

Year 2025, Volume: 11 Issue: 3, 265 - 273, 31.12.2025

Elif Nur Kaya , Bengü Doğu Kaya , Pınar Yılmaz Atalı , Bilge Tarçın

Abstract

Amaç
Bu in vitro çalışmada, farklı yapı ve kalınlıktaki indirekt restoratif materyallerden iletilen ışık gücü, yerli üretim bir LED ışık kaynağı kullanılarak değerlendirildi. Materyal türü ve kalınlığının ışık iletimi üzerindeki etkisinin karşılaştırmalı olarak incelemesi amaçlandı.

Gereç ve Yöntem
Lityum disilikat cam seramik (IPS e.max CAD, Ivoclar Vivadent, Lihtenştayn), hibrit seramik (Grandio Blocs, Voco, Almanya) ve 3 boyutlu (3B) baskı ile üretin rezin materyal (VarseoSmile TriniQ, Bego, Almanya) olmak üzere farklı içerikteki indirekt restoratif materyallerin her birinden 8x2mm ve 8x1,5mm boyutlarında disk şeklinde örnekler tasarlandı (CAD Software, Solidworks, ABD). Cam seramik ve hibrit seramik örnekler MCX5 Kazıma Ünitesi (Dentsply Sirona, ABD) ile, baskıyla üretilen rezin örnekler ise Max2 (Asiga, Avustralya) 3B yazıcı ile üretildi (n=10). Vega ışık kaynağının (Öncü Dental, Türkiye) gücü materyal olmadan direkt olarak ve hazırlanan örneklerden geçirilerek spektrometre (OHSP-350B, Hopoo Light&Color Technology, Çin) ile ölçülüp kaydedildi. Işık kaynağının örneklerden iletilen güçleri oransal olarak hesaplandı. Elde edilen veriler Kruskal Wallis ve Mann-Whitney U testleri kullanılarak istatistiksel olarak değerlendirildi (p<0,05).

Bulgular
Materyal kalınlığı ve türü iletilen ışık gücünü anlamlı şekilde etkiledi (p<0,01). Kalınlık arttıkça iletilen ışık gücü azaldı; Grandio Blocs en yüksek, VarseoSmile TriniQ en düşük değerleri gösterdi. Materyal kalınlığı ve türü iletilen ışık geçme yüzdesini de anlamlı şekilde etkiledi (p<0,01). Işık geçme yüzdesi tüm kalınlıklarda en yüksek Grandio Blocs’ta ölçüldü.

Sonuç
İndirekt restoratif materyallerden iletilen ışık gücü, polimerizasyon sürecinde önemli bir rol oynamaktadır. Materyal türü ve kalınlığındaki değişimler, ışık geçiş miktarını ve dolayısıyla polimerizasyon verimini etkileyebilir. Klinik uygulamalarda indirekt restoratif materyallerin başarısı için, seçilen materyalin ışık geçirgenliği ve uygun kalınlıkta kullanımı büyük önem taşımaktadır.

Keywords

Dental materyaller , Dental polimerize edici ışıklar , Kalıcı dental restorasyonlar

Evaluation of Irradiance Through Indirect Restorative Materials of Different Structures and Thicknesses

Abstract

Objectives:
The irradiance transmitted through indirect restorative materials of different structures and thicknesses was evaluated using a domestically manufactured LED light curing unit. Material and thickness effects on light transmission was investigated.

Materials and Methods:
Disc-shaped specimens (8x2mm/8x1.5mm) were manufactured from lithium disilicate glass ceramic (IPS e.max CAD, Ivoclar Vivadent, Liechtenstein), hybrid ceramic (Grandio Blocs, Voco, Germany) and 3D printable resin (VarseoSmile TriniQ, Bego, Germany). Glass ceramic and hybrid ceramic specimens were milled using a MCX5 Milling Unit (Dentsply Sirona, USA) and 3D printable resin material was produced using Max2 (Asiga, Australia) 3D printer (n=10). The irradiance of Vega light curing unit (Öncü Dental, Türkiye) was measured directly and through the prepared specimens using a spectrometer (OHSP-350B, Hopoo Light&Colour Technology, PRC). Values obtained through the specimens were calculated as a ratio of the directly measured irradiance. The data were statistically analyzed using Kruskal Wallis and Mann-Whitney U tests (p<0.05).

Results:
Material and thickness significantly affected the transmitted irradiance (p<0.001). Increasing thickness reduced the transmitted irradiance, Grandio Blocs presented the highest values and VarseoSmile TriniQ the lowest. Material and thickness also significantly affected the light transmission ratio (p<0.001). At all thicknesses, the highest light transmission ratio was recorded for Grandio Blocs.

Conclusion:
The light transmitted through restorative material plays a crucial role in polymerization process. Variations in material and thickness may influence the transmitted irradiance and the polymerization efficiency. The success of indirect restorations depends greatly on selecting materials with adequate light transmission and using them in appropriate thicknesses.

Keywords

Dental curing lights , Dental materials , Permanent dental restorations

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