title: Cerec anterior crowns: restorative options with monolithic ceramic materials.
abstract: The aim of this article is to discuss the different types of monolithic ceramic crowns that can be placed on anterior teeth with existing shoulder preparations. Anterior crowns were indicated for the teeth 12 to 22 in the present case. The patient, a 65-year-old male, had received all-ceramic crowns 20 years earlier, which had started to develop cracks and palatal fractures over the last few years. The patient's teeth were prepared and four sets of crowns were fabricated using different monolithic ceramic materials: IPS e.max CAD, Cerec Blocs C In, VITABLOCS Real Life, and ENAMIC. Both shade characterization and crystallization firing were performed on the monolithic lithium disilicate glass ceramic crowns. The silicate ceramic crowns received glaze firing alone. The crowns made of hybrid ceramic (ENAMIC) were treated with a polymer sealant.
authors.affiliation: Subject and Research Area of Computerized Dentistry, Department of Prosthodontics and Biomaterialis, Centre of Implantology, Uniklinik RWTH Aachen, Aachen, Germany. sreich@ukaachen.de
authors.forename: Sven
authors.initials: S
authors.lastname: Reich
authors.affiliation: Professional Service, Ivoclar Vivadent GmbH, Ellwangen, Germany.
authors.forename: Kurt
authors.initials: K
authors.lastname: Fiedlar
mesh_terms: D000368:Aged; D002516:Ceramics / Q000737:chemistry*; D017076:Computer-Aided Design; D003442:Crowns; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D006358:Hot Temperature; D006801:Humans; D007180:Incisor; D007574:Jaw Relation Record; D008297:Male; D010347:Patient Care Planning; D017797:Prosthesis Coloring; D019233:Retreatment; D012904:Smiling; D019231:Tooth Preparation, Prosthodontic / Q000379:methods; D014584:User-Computer Interface
chemical_list: C000613958:ENAMIC; C520133:IPS e.max CAD LT; C493120:lithia disilicate; D003776:Dental Porcelain; C074543:Cerec; C023506:Glass ceramics