The International Journal of Esthetic Dentistry Volume 4, 2015 page 154-166 , more by this author, more by this authormore by this author back Key words: Trade name and manufacturer: SPI SystemSPI ARTThommen MedicalGi-MaskColtène WhaledentIPS e.max PressIPS e.max CeramIvoclar Vivadent SPI SystemSPI ARTThommen MedicalGi-MaskColtène WhaledentIPS e.max PressIPS e.max CeramIvoclar Vivadent Original publication: Eur J Esthet Dent 2010;5:158–170