Artigo
Longitudinal results of a 10-year clinical trial of repair of amalgam restorations
Registro en:
Operative Dentistry, v. 6, p. 34-43, 2014.
0361-7734
10.2341/14-045-c
2897622509429759
0170241211219616
Autor
Moncada, Gustavo
Vildósola, Patricio
Fernández, Eduardo
Estay, Juan
Oliveira Júnior, Osmir Batista de [UNESP]
Andrade, Marcelo Ferrarezi de [UNESP]
Martin, Javier
Mjor, I
Gordan, Valéria V
Resumen
The aim of this prospective, blind, and randomized clinical trial was to assess the effectiveness of repair of localized clinical defects in amalgam restorations that were initially scheduled for replacement. A cohort of 20 patients with 40 (Class I and Class II) amalgam restorations that presented one or more clinical features that deviated from the ideal (Bravo or Charlie) according to US Public Health Service criteria, were randomly assigned to either the repair or the replacement group—A: repair, n = 19; and B: replacement, n = 21. Two examiners who had calibration expertise evaluated the restorations at baseline and 10 years after according to seven parameters: marginal occlusal adaptation, anatomic form, surface roughness, marginal staining, contact, secondary caries, and luster. After 10 years, 30 restorations (75%) were evaluated (Group A: n = 17; Group B: n = 13). Repaired and replaced amalgam restorations showed similar survival outcomes regarding marginal defects and secondary caries in patients with low and medium caries risk, and most of the restorations were considered clinically acceptable after 10 years. Repair treatment increased the potential for tooth longevity, using a minimally interventional procedure. All restorations trend to downgrade over time. Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680, 3andar sala 310, Centro, CEP 14801903, SP, Brasil Dental School, Universidad Mayor, Santiago, Chile Restorative Dentistry, University of Chile, Santiago, Chile Department of Restorative Dental Sciences, Division of Operative Dentistry, College of Dentistry, University of Florida, Gainesville, FL, USA Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680, 3andar sala 310, Centro, CEP 14801903, SP, Brasil