Influence of the spatulation of two zinc oxide-eugenol-based sealers on the obturation of lateral canals.
The objective of this research was to evaluate, in vitro, the importance of the correct manipulation of endodontic sealers, correlating it with flow rate and with the consequent obturation of root canals. Twenty-four human canines were prepared, 1 mm from the apex, with K-files up to size 50, by means of the step-back technique. Six lateral canals were then drilled in each tooth, with size 10 file fixed to a low-speed handpiece. The teeth were randomly divided into 4 groups, and root canals were obturated either with the Endométhasoneregister mark or target sealer or Grossman sealer, prepared at ideal or incorrect clinical consistency. After obturation by means of the lateral condensation technique, the teeth were radiographed and evaluated as to the number of sealed lateral canals. Statistical analysis revealed significant differences (p < 0.001) between the tested sealers, and indicated the higher capacity of the well-manipulated Grossman sealer to fill lateral canals. It can be concluded that the flow rate of a sealer and its correct manipulation are very important for the satisfactory obturation of lateral canals.
Restorative Dentistry Department, School of Dentistry of Ribeirão Preto, University of São Paulo, Brazil.
Jesus Djalma
JD
Pecora
Rodrigo Gonçalves
RG
Ribeiro
Danilo M Zanello
DM
Guerisoli
João Vicente Baroni
JV
Barbizam
Melissa Andréia
MA
Marchesan
D000287:Administration, Topical; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage*; D003481:Cuspid; D003907:Dexamethasone / Q000008:administration & dosage*; D004338:Drug Combinations; D005557:Formaldehyde / Q000008:administration & dosage*; D006801:Humans; D006854:Hydrocortisone; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D018709:Statistics, Nonparametric; D013943:Thymol / Q000008:administration & dosage* / Q000031:analogs & derivatives*; D015035:Zinc Oxide-Eugenol Cement / Q000008:administration & dosage*
D000893:Anti-Inflammatory Agents; D004338:Drug Combinations; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; C011244:corticosteroid methanetriol mixture; C045432:Grossman's sealer; D005557:Formaldehyde; D013943:Thymol; D003907:Dexamethasone; D006854:Hydrocortisone