title: An in vitro model to investigate filling of lateral canals.
abstract: Aims of this work were to examine lateral canals in extracted teeth, to propose a new technique to produce artificial lateral canals, and to compare two obturation techniques. Cleared roots were examined to record measure and shape of lateral canals. Artificial lateral canals were prepared on human demineralized teeth before final clearing. Specimens were divided in two groups: canals of group 1 were filled with Schilder's technique, canals of group 2 were filled with vertical compaction with apical backfilling. Stereomicroscopic analysis of lateral canal filling revealed lower filling rates in apical canals compared to coronal ones and higher filling rates with "vertical compaction with apical backfilling" compared to Schilder's group. The tested procedure appears to be a reliable technique to obtain standardized lateral canals and to compare filling procedures.
authors.affiliation: Department of Dental Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy.
authors.forename: Mauro
authors.initials: M
authors.lastname: Venturi
authors.forename: Roberto
authors.initials: R
authors.lastname: Di Lenarda
authors.forename: Carlo
authors.initials: C
authors.lastname: Prati
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Breschi
mesh_terms: D003648:Decalcification Technique; D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D004853:Epoxy Resins / Q000737:chemistry; D005404:Fixatives / Q000737:chemistry; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D008953:Models, Anatomic; D012387:Root Canal Filling Materials / Q000737:chemistry; D012389:Root Canal Obturation / Q000379:methods*; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods; D012459:Salicylates / Q000737:chemistry; D019227:Tooth Apex / Q000033:anatomy & histology
chemical_list: D004853:Epoxy Resins; D005404:Fixatives; D012387:Root Canal Filling Materials; D012459:Salicylates; C534916:epoxy resin-based root canal sealer; D006171:Gutta-Percha; C033069:methyl salicylate