1/4. Unusual case of bilateral talon cusp associated with dens invaginatus.CASE REPORT: This paper presents a rare case of bilateral talon cusp in permanent maxillary central incisors, one on the labial and another on the lingual surface of each tooth. The condition was associated with dens invaginatus in a maxillary permanent lateral incisor, but no developmental syndrome was identified. The left central incisor required no treatment because the aesthetic appearance was satisfactory and neither occlusal interferences nor caries were present. After careful investigation of the right lateral incisor, a sealant was applied. Root canal treatment was indicated for the right central incisor that had a wide open apex with thin, weak, divergent walls, and an apical radiolucency.- - - - - - - - - - ranking = 1keywords = seal (Clic here for more details about this article) |
2/4. Revascularization of immature permanent teeth with apical periodontitis: new treatment protocol?A new technique is presented to revascularize immature permanent teeth with apical periodontitis. The canal is disinfected with copious irrigation and a combination of three antibiotics. After the disinfection protocol is complete, the apex is mechanically irritated to initiate bleeding into the canal to produce a blood clot to the level of the cemento-enamel junction. The double seal of the coronal access is then made. In this case, the combination of a disinfected canal, a matrix into which new tissue could grow, and an effective coronal seal appears to have produced the environment necessary for successful revascularization.- - - - - - - - - - ranking = 2keywords = seal (Clic here for more details about this article) |
3/4. Acute pulpal-alveolar cellulitis syndrome. IV. Exacerbations during endodontic treatment. Part 3. A case report.An asymptomatic abscessed maxillary premolar, which had undergone previous endodontic treatment, was retreated. The initial attempt to remove the silver cone seal was unsuccessful. Early the next morning, the patient appeared with a severe cellulitis exacerbation. The silver cone was now loose: a lateral "blowout." Specific cultures of the silver cone and exudate revealed three aerobic microbes: a streptococcus sp and two obligate pseudomonas spp. Anaerobes were shown to be absent with anaerobic subcultures. This case would appear to substantiate the alteration of the tissue oxidation-reduction potential as the major factor in endodontic cellulitis exacerbations, as previously reported.- - - - - - - - - - ranking = 1keywords = seal (Clic here for more details about this article) |
4/4. Implant pathology associated with loss of periapical seal of adjacent tooth: clinical report.A mandibular cuspid adjacent to two implants placed in the incisor region redeveloped periapical pathosis as a result of the inadvertent removal of the gutta-percha seal during post preparation. The root end inflammatory process communicated with the surface of an adjacent implant, resulting in endodontic-implant pathosis and subsequent removal of the implant. The osteotomy site healed uneventfully and almost complete osseous repair was observed after five months.- - - - - - - - - - ranking = 5keywords = seal (Clic here for more details about this article) |