Foek, D L S; Özcan, M; Krebs, E; Sandham, A (2009). Adhesive properties of bonded orthodontic retainers to enamel: stainless steel wire vs fiber-reinforced composites. The Journal of Adhesive Dentistry, 11(5):381-390.
Fourie, Z; Özcan, M; Sandham, A (2009). Effect of dental arch convexity and type of archwire on frictional forces. American Journal of Orthodontics and Dentofacial Orthopedics, 136(1):14e1-14e7.