title: Comparison of two minimally invasive methods on the longevity of glass ionomer cement restorations: short-term results of a pilot study.
abstract: The purpose of this study was to evaluate the clinical performance of glass ionomer cement (GIC) restorations comparing two minimally invasive methods in permanent teeth after 12 months. Fifty pregnant women (second trimester of pregnancy), mean age 22 +/- 5.30 years, were treated by two previously trained operators. The treatment approaches tested were: chemomechanical method (Carisolv; MediTeam) and atraumatic restorative treatment (ART). A split-mouth study design was used in which the two treatments were randomly placed in 50 matched pairs of permanent teeth. The chemomechanical method (CM) was the test group and the ART was the control group. The treatments were performed in Public Health Centers. The tested restorative material was a high-strength GIC (Ketac Molar; 3M/ESPE). The restorations were placed according to the ART guidelines. Two calibrated independent examiners evaluated the restorations in accordance with ART criteria. The inter-examiner kappa was 0.97. Data were analyzed using 95% confidence interval on the binomial distribution and Fisher's exact test at 5% significance level. In a 12-month follow-up, 86% of the restorations were evaluated. In the test group (CM), 100% (CI=93.3-100%) of the restorations were considered successful. In the control group (ART) 97.6% (CI=87.4-99.9%) of the restorations were considered successful and 2.4% unsuccessful (marginal defect >0.5 mm). There was no statistically significant difference between the 12-month success rate for both groups (Fisher's exact test: P=0.49) and between the two operators (Fisher's exact test: P=1.00). Both minimally invasive methods, chemomechanical method and ART, showed a similar clinical performance after 12 months of follow up.
authors.affiliation: Department of Operative Dentistry, University of North of Paraná, PR, Brazil.
authors.forename: Terezinha Jesus Esteves
authors.initials: TJ
authors.lastname: Barata
authors.forename: Eduardo
authors.initials: E
authors.lastname: Bresciani
authors.forename: Maria Cecília Ribeiro
authors.initials: MC
authors.lastname: Mattos
authors.forename: José Roberto Pereira
authors.initials: JR
authors.lastname: Lauris
authors.forename: Dan
authors.initials: D
authors.lastname: Ericson
authors.forename: Maria Fidela de Lima
authors.initials: MF
authors.lastname: Navarro
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D003737:Dental Cavity Preparation / Q000295:instrumentation / Q000379:methods; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005899:Glass Ionomer Cements / Q000737:chemistry*; D018698:Glutamic Acid / Q000627:therapeutic use; D006801:Humans; D007930:Leucine / Q000627:therapeutic use; D008239:Lysine / Q000627:therapeutic use; D010865:Pilot Projects; D011247:Pregnancy; D013499:Surface Properties; D016019:Survival Analysis; D055815:Young Adult
chemical_list: C119934:Carisolv; D005899:Glass Ionomer Cements; C110712:ketac-molar; D018698:Glutamic Acid; D007930:Leucine; D008239:Lysine