title: Bond strength and durability of porcelain bonding systems.
abstract: Because the most effective bonding system for ceramic restorations has not been documented, this study examined bond strength and durability of bonding systems joined to a feldspathic porcelain. Disks of porcelain specimens were fired on refractory investment materials and were air-abraded with alumina. The disks were then bonded with six combinations of five silane primers and six luting agents. Durability of the bond was evaluated by means of a thermocycling machine. Shear bond strengths were determined before and after thermocycling. The results showed that reduction in bond strengths after thermocycling was remarkable for five systems (p < 0.05). However, three systems exhibited shear bond strength greater than 20 MPa after 20,000 cycles.
authors.affiliation: Department of Fixed Prosthodontics, Nagasaki University School of Dentistry, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kato
authors.forename: H
authors.initials: H
authors.lastname: Matsumura
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
authors.forename: M
authors.initials: M
authors.lastname: Atsuta
mesh_terms: D000388:Air; D000537:Aluminum Oxide / Q000737:chemistry; D000538:Aluminum Silicates / Q000737:chemistry; D001896:Boron Compounds / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003734:Dental Casting Investment / Q000737:chemistry; D003735:Dental Casting Technique; D003738:Dental Cements / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D008314:Malonates / Q000737:chemistry; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D010710:Phosphates / Q000737:chemistry; D017680:Potassium Compounds / Q000737:chemistry; D019279:Resin Cements; D012821:Silanes / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors
chemical_list: D000538:Aluminum Silicates; C096475:Bistite Resin Cement; D001896:Boron Compounds; C076805:Clearfil Porcelain Bond; D003188:Composite Resins; C073464:Cosmotech primer; D003734:Dental Casting Investment; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D008314:Malonates; D008689:Methacrylates; D008768:Methylmethacrylates; C093719:Panavia TPN-S; D010710:Phosphates; D017680:Potassium Compounds; D019279:Resin Cements; D012821:Silanes; C085070:Tokuso Light Bond; D003776:Dental Porcelain; C016447:feldspar; C052304:Panavia EX; C049495:Super-bond; D000537:Aluminum Oxide