Root-end filling materials: apical microleakage and marginal adaptation.
The purpose of this study was to evaluate the root-end sealing ability through dye leakage evaluation and the marginal adaptation through scanning electron microscopy (SEM) of some root-end filling materials. Thirty human uniradicular teeth were used. Teeth were divided into three groups: (1) retrofilled with MTA-Angelus, (2) with SuperEBA, and (3) with Vitremer. The root surfaces were isolated with nail polish and teeth were immersed in silver nitrate. Roots were sectioned transversally at each millimeter, in three sections and evaluated at a stereomicroscope to observe dye penetration. Using SEM the distance between the tested root-end filling materials and the surrounding dentin was measured at four points. The statistical analysis showed significant differences among the three materials in relation to the sealing ability (p < 0.05). Concerning marginal adaptation, MTA-Angelus presented the best results (p < 0.01). Absence of correlation between the two methodologies was clearly observed.
Xavier
Cristina Braga
CB
Department of Oral and Maxillofacial Surgery, Dental School, Federal University of Pelotas, Rua Paulo Marques 75, 96020-230 Pelotas, RS, Brazil. crisbuco@bol.com.br
Weismann
Ruben
R
de Oliveira
Marília Gerhardt
MG
Demarco
Flávio Fernando
FF
Pozza
Daniel Humberto
DH
D017607:Aluminum Compounds / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003763:Dental Leakage; D018772:Dental Marginal Adaptation; D017220:Dentin-Bonding Agents / Q000737:chemistry; D004338:Drug Combinations; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D010087:Oxides / Q000737:chemistry; D012387:Root Canal Filling Materials / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry; D018709:Statistics, Nonparametric
D017607:Aluminum Compounds; D017610:Calcium Compounds; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D004338:Drug Combinations; D005899:Glass Ionomer Cements; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C084550:Vitremer; C086631:mineral trioxide aggregate; C084074:Super EBA