In vitro wear of indirect composite restoratives

Farklı kimyasal ortamların indirekt kompozitlerin sertlik ve aşınma dirençlerine etkisi

“…5 İnley ve onley oklüzal restorasyonlarda başarılı olarak kullanılan indirekt kompozit materyallerinin, fiziksel özellikleri ve renk stabiliteleri yanında aşınma dirençlerinin de arttığı bildirilmektedir. 4,6 Aşınma, biribirine temas eden yüzeylerden sür-tünme etkisiyle oluşan malzeme ve kütle kaybıdır 7,8 ve bunun sonucunda, dikey boyut kaybı, çiğneme etkinliğinde azalma, çiğneme kaslarında yorulma ve estetik kaybı görülmektedir. 9 Teorik olarak, restoratif materyaller aşınmaya karşı dirençli ve antagonistleri üzerinde düşük aşınma etkisine sahip olmalıdır.…”

Current concepts on the management of tooth wear: part 4. An overview of the restorative techniques and dental materials commonly applied for the management of tooth wear

“…4 The disadvantages of direct resin composite restorations for the above purpose include: 4 • Polymerisation shrinkage, which may culminate in marginal leakage and staining • Accelerated wear rate (when compared to metals/ceramics) and possible inadequate wear resistance for posterior use 5 • Bulk fracture(s)…”

The Effects of Scaling and Root Planing on the Marginal Gap and Microleakage of Indirect Composite Crowns Prepared With Different Finish Lines: An In Vitro Study

“…8 As to complications, increased plaque accumulation was noticed, restricting the indication for permanent restorations. 1,5 With the introduction of modern composite materials, it is possible to reduce the above mentioned disadvantages; 4,18,31 nonetheless, further in vivo studies will be necessary to evaluate the stability and longevity of composite crowns in the oral environment. 1 Hand and ultrasonic scaling and root planing of root surfaces are the most commonly used mechanical procedures for supportive periodontal care.…”

“…1,12,14 Nevertheless, some authors have proposed them as permanent restorations thanks to the introduction of efficient dentinal adhesives, the development of resin composites with higher fracture toughness and wear resistance, and the possibility of CAD-CAM processing. [14][15][16][17][18] Indirect composite restorations are easy to use and less time-consuming compared with traditional procedures. 8,12 Moreover, they require less invasive preparations with minimal depth reductions, preserving more sound tooth structure: According to some authors, this could be paramount to increasing the survival probability of a restoration, particularly after endodontic treatment.…”