An audit of shade reproduction of fixed metal ceramic prostheses.
This investigation aimed to evaluate the colour difference between metal ceramic restorations and their corresponding shades and any reasons for a colour mismatch in the dental laboratory. The colour of 50 consecutive metal ceramic restorations produced in a laboratory was measured using a spectrophotometer and compared to the shade tabs. Colour reproduction was optimal at porcelain thicknesses between 1.4-1.6 mm, varied between technicians within the same laboratory and was better for shades in the 2M group. Most crowns were above the threshold for a clinically acceptable shade match and almost all crowns were lighter than the corresponding shade tab.
kwfinch22@gmail.com
Karl
K
Finch
Fadi D
FD
Jarad
Adejumoke Adeola
AA
Adeyemi
Sawsan
S
Al-Shamaa
D003116:Color; D003442:Crowns; D019230:Dental Audit; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D003779:Denture Design; D003830:Denture, Partial, Fixed; D006801:Humans; D007754:Laboratories, Dental; D016876:Metal Ceramic Alloys / Q000737:chemistry*; D017797:Prosthesis Coloring / Q000295:instrumentation / Q000592:standards*; D013053:Spectrophotometry; D013499:Surface Properties
D016876:Metal Ceramic Alloys; D003776:Dental Porcelain