The physical and adhesive properties of dental cements used for atraumatic restorative treatment.
Atraumatic restorative treatment (ART), a recently reported field dentistry technique, involves removal of carious debris using only hand instruments and placement of a glass-ionomer cement (GIC) restoration. While small ART-GIC restorations are effective short-term replacements for lost tooth form, many larger ART-GIC restorations are defective after two years. Presently, resin-modified GICs (R-M GIC) are available which require no special activation equipment and handle easily in field settings. This study measured the compressive, tensile, and shear bond strengths to enamel and dentin of a conventional ART-GIC (Fuji IX) and two R-M GICs (Fuji Plus and Advance) at a powder-to-liquid ratio of 3.6:1. The compressive strengths of the GICs tested were significantly different. Fuji IX had the highest compressive strength, and Advance had the lowest strength (p < 0.05). The tensile strength of the R-M GICs was greater than that of the ART-GIC. Fuji Plus showed the highest shear bond strength to enamel and dentin and was significantly different from both Fuji IX and Advance. A clinical protocol is presented followed by case reports where the ART technique was used for management of acute caries in a modern dental setting.
Ewoldsen
N
N
Department of Adult Restorative Dentistry, UNMC College of Dentistry, Lincoln 68583-0740, USA.
Covey
D
D
Lavin
M
M
D000208:Acute Disease; D000268:Adhesiveness; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D019245:Compressive Strength; D001840:Dental Bonding; D003731:Dental Caries / Q000628:therapy; D003738:Dental Cements / Q000737:chemistry* / Q000627:therapeutic use; D003793:Dental Restoration, Permanent / Q000379:methods*; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing / Q000379:methods / Q000706:statistics & numerical data; D013718:Tensile Strength
D003738:Dental Cements