Effect of ceramic materials on the optical properties of porcelain veneers for tetracycline-stained teeth.

Author: Jin CHEN ¹ ; Qi XIA ¹ ; Ling-Ling ZHANG ¹ ; Hui-Fen QIAN ² ; Xing-Xing LI ¹
Author Information

1. College of Stomatology, Kunming Medical University, Kunming 650500, China.
2. Dept. of Prosthodontics, The Second People's Hospital of Yunnan Province, Kunming 650021, China.
Publication Type:Journal Article
Keywords: color difference; feldspathic ceramic; glass-ceramic; porcelain veneer; tetracycline-stained teeth
MeSH: Ceramics; Color; Dental Porcelain; Dental Veneers; Materials Testing; Tetracyclines
From: West China Journal of Stomatology 2021;39(3):341-346
CountryChina
Language:English
Abstract: OBJECTIVES:To analyze the chromatic properties and translucency of porcelain veneers made from different ceramic materials against the background of tetracycline-stained teeth.
METHODS:Porcelain specimens (A1, A3, B2, B4) measuring 0.50 mm in thickness were prepared by heat-press casting and layering. The L*, a*, and b* values of the specimens against simulated tetracycline tooth and black-and-white backgrounds were measured by a spectrophotometer, and color differences ΔE
RESULTS:The ΔE
CONCLUSIONS:When changing the color of tetracycline-stained teeth, 0.50 mm-thick IPS d.SIGN feldspathic veneers with an opaque layer provide better chromatic properties than IPS e.max Press LT glass ceramic veneers. However, the translucency of feldspathic veneers is generally poorer than that of glass ceramic veneers.