title: Evaluation of single root canals filled using the lateral compaction, tagger's hybrid, microseal and guttaflow techniques.
abstract: The aim of this study was to determine the percentage of voids, gutta-percha and root canal sealer using 4 different filling techniques. Fifty-two extracted maxillary lateral incisors were prepared using the crown-down pressureless technique. The teeth were randomly divided in 4 groups (n=13): Lateral compaction (LC), Tagger's hybrid (TH), MicroSeal (MS) and GuttaFlow (GF) techniques. Horizontal cross-sections were made at the 2, 10 and 15 mm levels from the apex. Digital images of the root canal areas were acquired using a stereomicroscope and examined using the Image Tool 3.0 software. Statistical analysis was performed using the Kruskal-Wallis test (α=0.05). In general, a significant decrease in the gutta-percha filled area and increase of sealer area were observed at the apical level for all the evaluated techniques (p<0.05). With regard to the presence of voids, no significant difference was found. MS and TH techniques showed a larger gutta-percha filled area than LC and GF techniques at the coronal and middle third level (p<0.05). From the results of the present study, it may be concluded that the gutta-percha filled area of fillings decrease at the apical level, regardless of the filling technique used.
authors.affiliation: Department of Operative Dentistry, Endodontics and Dental Materials, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil. marinangelica@usp.br
authors.forename: Marina Angélica
authors.initials: MA
authors.lastname: Marciano
authors.forename: Clovis Monteiro
authors.initials: CM
authors.lastname: Bramante
authors.forename: Marco Antonio Hungaro
authors.initials: MA
authors.lastname: Duarte
authors.forename: Ronan Jacques Rezende
authors.initials: RJ
authors.lastname: Delgado
authors.forename: Ronald
authors.initials: R
authors.lastname: Ordinola-Zapata
authors.forename: Roberto Brandão
authors.initials: RB
authors.lastname: Garcia
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D004338:Drug Combinations; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008422:Materials Testing; D016062:Porosity; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation / Q000295:instrumentation / Q000379:methods*; D018915:Root Canal Preparation / Q000379:methods; D013499:Surface Properties; D019227:Tooth Apex / Q000033:anatomy & histology
chemical_list: D004129:Dimethylpolysiloxanes; D004338:Drug Combinations; C515718:GuttaFlow; D012387:Root Canal Filling Materials; D006171:Gutta-Percha