title: The Integrated Abutment Crownt, a screwless and cementless restoration for single-tooth implants: a report on a new technique.
abstract: A technique is presented for the restoration of single-tooth, implant-supported crowns where the abutment and the crown material are chemomechanically bonded; therefore, there is no need for cement, and the implant and implant-abutment are connected with a screwless locking-taper. The clinical and laboratory procedures involved in the fabrication and insertion of the restoration are described in detail. This restoration offers the restorative dentist some advantages: excellent marginal adaptation with a cementless interface, a bacterially sealed implant-abutment connection, a crown material with a similar wear rate and hardness values of human enamel, a simple laboratory technique, and a reduced number of prosthetic components. Due to the light-cured nature of the crown material, chairside modifications can be accomplished. The major drawbacks are: studies are necessary to assess the long-term performance of the Integrated Abutment Crown (IAC)'s in both anterior and posterior areas of the mouth. Resin materials have higher roughness values, accumulate plaque at a higher rate, and are more likely to stain than tooth structure and all-ceramic restorations.
authors: Harvard School of Dental Medicine, Restorative Dentistry and Biomaterial Sciences and Concord Dental Associates, Faulkner Hospital, Implant Centre, Boston, MA, USA. rainieru@yahoo.com
authors: Rainier A
authors: RA
authors: Urdaneta
authors: Mauro
authors: M
authors: Marincola
mesh_terms: D003116:Color; D003188:Composite Resins / Q000737:chemistry; D003442:Crowns; D000044:Dental Abutments; D001840:Dental Bonding / Q000379:methods; D019250:Dental Implants, Single-Tooth; D003764:Dental Materials / Q000737:chemistry; D003773:Dental Plaque / Q000209:etiology; D003776:Dental Porcelain / Q000737:chemistry; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D006244:Hardness; D006801:Humans; D013499:Surface Properties; D013674:Technology, Dental
chemical_list: D003188:Composite Resins; D003764:Dental Materials; D003776:Dental Porcelain