title: A combined amalgam and composite resin restoration.
abstract: Difficulties with restoring class II cavities with posterior composite resin are enumerated. The problem is especially acute when a gingival margin lies close to or apical to the cementoenamel junction. A technique is described whereby the proximal portion of class II cavities is restored with amalgam to the contact area and composite resin inserted in the remainder of the cavity. Microleakage was studied by dye penetration tests. At the composite resin/cementum interface microleakage was significantly greater than at the amalgam/cementum and amalgam/composite resin interfaces (p less than 0.001). No statistically significant difference was observed in microleakage between the amalgam/cementum and amalgam/composite resin interfaces.
authors.affiliation: Department of Oral Rehabilitation, Tel Aviv University, Maurice and Gabriela Goldschleger School of Dental Medicine, Israel.
authors.forename: H S
authors.initials: HS
authors.lastname: Cardash
authors.forename: N
authors.initials: N
authors.lastname: Bichacho
authors.forename: S
authors.initials: S
authors.lastname: Imber
authors.forename: R
authors.initials: R
authors.lastname: Liberman
mesh_terms: D001641:Bicuspid; D016009:Chi-Square Distribution; D003188:Composite Resins; D003723:Dental Amalgam; D003763:Dental Leakage / Q000517:prevention & control; D003793:Dental Restoration, Permanent / Q000379:methods*; D005240:Feasibility Studies; D006801:Humans; D008963:Molar; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D003723:Dental Amalgam