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Effect of UV aging on translucency of currently used esthetic CAD‐CAM materials
Author(s) -
Turgut Sedanur,
Kılınç Hamiyet,
Bağış Bora
Publication year - 2019
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12460
Subject(s) - cubic zirconia , materials science , dentistry , ceramic , nuclear chemistry , medicine , composite material , chemistry
Objectives To evaluate the relative translucency parameter (RTP) values of computer‐aided design (CAD)‐computer‐aided manufacturing (CAM) materials after UV aging. Materials and methods 70 specimens ( n = 10) of Bruxzir Anterior (BA); E.max Cad (EC); Lava Ultimate (LU); Cerasmart (CE); Vita Enamic (VE); Vita Suprinity (VS); Vita Mark II (VM) were prepared (1 mm ± 0.01 mm). Color measurements were performed using a spectrofotometer (VITA Easyshade). RTP values of the specimens before (RTP 1 ) and after UV aging (RTP 2 ) were evaluated. Statistical analyses were done with repeated measurements of two‐way‐ANOVA with Bonferroni test ( P < 0.05). Results Evaluating RTP 1 and RTP 2 values; significant differences were found ( P < 0.05). There were no significant difference between the RTP 1 values of CE and VS ( P = 0.779); EC and VM ( P = 0.952); VM and LU ( P = 0.995); EP and LU ( P = 0.653). Evaluating RTP 2 values; VE and BA were found significantly different from the others ( P < 0.05). For all evaluated groups TP values decreased after UV aging ( P < 0.05). The most RTP reduction was observed for LU; while VM and EC were less affected. Conclusion Glass ceramic VE showed the highest RTP and zirconia‐based BA was the most opaque restorative CAD‐CAM material. UV aging caused the CAD‐CAM materials get more opaque. Clinical significance In cases where translucency is needed chosing VE would give better esthetic results; while zirconia‐based BA should be used if more opaque restoration is needed. Clinicians should be aware of that restorations get more opaque after usage.