title: Analysis of microleakage of temporary restorative materials in primary teeth.
abstract: OBJECTIVE
  The aim of this study was to compare the coronal microleakage of restorative materials used between sessions of endodontic treatment in primary teeth.
  
  
  METHODS
  Forty healthy primary canines were chosen and randomly allocated to four groups: Group 1 - Cimpat Branco ® (n = 10), Group 2 - Bioplic ® (n = 10), Group 3 - Maxxion R ® glass ionomer cement (n = 10), and Group 4 (control) - Z350 ® composite resin (n = 10). Class V cavities were created and fillings carried out following the manufacturer's instructions. The teeth were submitted to thermocycling, sealed, and immersed in 0.5% basic fuchsin solution for 24 h. The teeth were split along their long axis in the vestibulolingual direction and the tooth-restorative material interface was photographed. The percentage of microleakage was calculated using the ImageJ program. Data were analyzed using the analysis of variance (ANOVA) F-test and Bonferroni's t-test, with a 5% level of significance.
  
  
  RESULTS
  The following mean percentages of microleakage were found: Group 1 = 16.08%, Group 2 = 46.98%, Group 3 = 47.93%, and Group 4 = 11.03%. Statistically, significant differences were found in the comparison of Groups 1 and 4 to Groups 2 and 3.
  
  
  CONCLUSIONS
  Cimpat Branco ® had a lower percentage of microleakage in comparison to Bioplic ® and Maxxion R ® glass ionomer cement.
authors.forename: Geórgia Linhares
authors.initials: GL
authors.lastname: dos Santos
authors.affiliation: Post Graduate Programme in Dentistry, Federal University of Santa Catarina, Santa Catarina, Brazil.
authors.forename: Ana Paula Caldeira de Andrada
authors.initials: AP
authors.lastname: Beltrame
authors.forename: Thaísa Cezária
authors.initials: TC
authors.lastname: Triches
authors.forename: Marcos
authors.initials: M
authors.lastname: Ximenes-Filho
authors.forename: Daniel
authors.initials: D
authors.lastname: Baptista
authors.forename: Michele
authors.initials: M
authors.lastname: Bolan
mesh_terms: D002648:Child; D003794:Dental Restoration, Temporary; D005899:Glass Ionomer Cements; D006801:Humans; D014094:Tooth, Deciduous
chemical_list: D005899:Glass Ionomer Cements