Date on Master's Thesis/Doctoral Dissertation


Document Type

Master's Thesis

Degree Name



Oral Biology

Degree Program

Oral Biology, MS

Committee Chair

Durski, Marcelo

Committee Co-Chair (if applicable)

Metz, Michael

Committee Member

Metz, Michael

Committee Member

Crim, Gary

Author's Keywords

IPS e.max CAD; translucency; thickness; shade; porcelain


IPS e.max is a very esthetic lithium disilicate used in dental ceramics. Unfortunately, it can unintentionally change color after cementation with resin cements. The purpose of this study is to better understand how combining thickness and translucency affects the post-cementation shade of IPS e.max CAD overlaying a dark substrate, thereby enabling clinicians to choose more appropriate techniques and materials. IPS e.max CADs (A1 shade) had either a low translucency (LT) or high translucency (HT), and cut with 0.3mm, 0.5mm, and 1.0mm thicknesses. Each sample overlaid a resin cement and dark substrate, a spectrophotometer helped derive the color difference (ΔE*ab), and a 2-way ANOVA (p3.3) shade changes.