title: The properties of Endocal 10 and its potential impact on the structural integrity of the root.
abstract: The purpose of this research was to determine if the use of Endocal 10 (previously called Biocalex 6.9) is associated with root fracture and to assess its sealability. Thirty-six freshly extracted, single canal human mandibular incisors were instrumented and randomly divided into two equal groups (n = 15). Canals in group A were obturated with vertically compacted gutta-percha and Sealapex, and those in group B were filled with Endocal 10 placed with a #25 Lentulo spiral per manufacturer's instructions. Two blinded investigators evaluated the teeth for fractures using transillumination and an operating microscope at 12 x magnification. Three of the fifteen samples filled with Endocal 10 had vertically fractured in half, whereas none of the teeth filled with gutta-percha had any evident fracture lines. The remaining teeth were tested for leakage via a fluid filtration model at 1 wk and 30 days postobturation. No leakage was found among any of the samples whether filled with gutta-percha or with Endocal 10 at either time interval. Statistical analyses were completed using Fisher's exact test (p = 0.023), which showed that there was a significant increase in chance of fracture when using Endocal 10 versus gutta-percha. The results indicate that, although Endocal 10 is able to seal the tooth as well as gutta-percha and sealer, there is a significant potential risk of root fracture.
authors.affiliation: Nova Southeastern University College of Dental Medicine, Fort Lauderdale, Florida 33328, USA.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Goldberg
authors.forename: Sergio
authors.initials: S
authors.lastname: Kuttler
authors.forename: Samuel O
authors.initials: SO
authors.lastname: Dorn
mesh_terms: D017610:Calcium Compounds / Q000009:adverse effects*; D003763:Dental Leakage / Q000517:prevention & control*; D006171:Gutta-Percha; D006801:Humans; D007180:Incisor; D010087:Oxides / Q000009:adverse effects*; D012387:Root Canal Filling Materials / Q000009:adverse effects*; D014082:Tooth Fractures / Q000209:etiology*; D014092:Tooth Root / Q000293:injuries; D014172:Transillumination
chemical_list: D017610:Calcium Compounds; C485079:Endocal 10; D010087:Oxides; D012387:Root Canal Filling Materials; D006171:Gutta-Percha