title: Evaluation of leakage of bacteria and endotoxins in teeth treated endodontically by two different techniques.
abstract: Root canal recontamination occurs after contact between oral-bacterial flora and the coronal extremity of the root canal. The aim of this study was to evaluate the time required for endotoxins and bacteria to penetrate through root-canal obturations performed with vertical and lateral gutta-percha condensation techniques. Specimens prepared by the two alternative methods were exposed to contaminated saliva, and leakage into the root was evaluated over time. None of the obturated roots was infiltrated by endotoxins after 31 days. On the contrary, between day 13 and day 37 bacteria had infiltrated all specimens.
authors.affiliation: Federico II University, Naples, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Carratù
authors.forename: M
authors.initials: M
authors.lastname: Amato
authors.forename: F
authors.initials: F
authors.lastname: Riccitiello
authors.forename: S
authors.initials: S
authors.lastname: Rengo
mesh_terms: D004396:Coloring Agents; D003763:Dental Leakage / Q000382:microbiology*; D003786:Dental Pulp Cavity / Q000382:microbiology*; D004731:Endotoxins / Q000378:metabolism*; D006171:Gutta-Percha / Q000627:therapeutic use; D006801:Humans; D008070:Lipopolysaccharides / Q000378:metabolism; D011549:Pseudomonas / Q000254:growth & development; D011550:Pseudomonas aeruginosa / Q000378:metabolism; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D012389:Root Canal Obturation / Q000295:instrumentation / Q000379:methods*; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods; D012463:Saliva / Q000382:microbiology; D013212:Staphylococcus epidermidis / Q000254:growth & development; D013997:Time Factors
chemical_list: D004396:Coloring Agents; D004731:Endotoxins; D008070:Lipopolysaccharides; D012387:Root Canal Filling Materials; D006171:Gutta-Percha