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Öğe Evaluating root and canal configuration of mandibular molars with cone-beam computed tomography in an eastern region of Turkish population(Cumhuriyet University Faculty of Dentistry, 2014) Ahmeto?lu F.; Altun O.; Şimşek N.; Sinan Ocak M.; Dedeo?lu N.Objectives: The aim of this study was to examine the root canal morphology of mandibular molars using cone beam computed tomography images of individuals living in the East of Turkey. Materials and Methods: The tomographic images of a total 183 patients attending the Oral and Maxillofacial Radiology Department and clinical records were taken between 2011-2013 years were evaluated and clinical records. Root and canal diversities were classified according to the methods created by Vertucci and Gulabivala et al. Results: 173 first molar and 235 second molar teeth were examined among evaluated 155 patients. While the majority of the molar teeth had two separate roots (94.2% of the first molars, second molars 81.7%), three separate roots in first molars and second molars were found respectively 4.6% and 2.1%. Mesial roots of first molars with two separate roots showed type 4 canal configuration rate of 72.4%, whereas distal roots showed type 1 canal configuration rate of 69.3%. The Mesial root of the first molar teeth with three canals showed type 2 canal configuration (62.5%), the distal roots showed completely type 1 canal configuration (100%). The rate of 36% for type 4 canal configuration was detected in mesial roots and the rate of 95.8% for type 1 canal configuration was detected in distal roots of second molars with two canals. Type 1 canal configuration was most prevalent in the three rooted molars. Conclusions: While, two separate roots were most prevalent in each of two teeth groups, three separate roots were seen less frequent. Type 1 canal configuration was most prevalent in the distal roots, whereas the mesial roots had more complex root canal morphology and showed mostly type 4 canal configuration.Öğe Lesion sterilization and tissue repair(Cumhuriyet University Faculty of Dentistry, 2014) Şimşek N.; Özan U.; Er K.Success of the endodontic treatment depends on the microbial elimination in the root canal and periradicular region. Mechanic instrumentation alone cannot achieve a sterile condition. For this reason, some researchers have tried to solve this problem with local administration of antibiotic mixtures. Triple antibiotic paste containing metronidazole, ciprofloxacin, and minocycline has been reported to be a successful protocol in controlling the root canal pathogens. The developed treatment method have been named lesion sterilization and tissue reapir. The purpose of this review is to make contribution to beter understanding of biocompatibility, efficiency, and the restricted properties of the triple antibiotic paste in endodontic therapy and pulp revascularization.Öğe A multidisciplinary approach to caries that may occur after orthodontic treatment(Cumhuriyet University Faculty of Dentistry, 2014) Şimşek N.; YalÇin M.; Ersöz M.; Alan H.; Bulut E.T.Objectives: Caries and plaque retention are the most common side effects of multi-bracket fixed orthodontic treatment. In this case report, therapies of caries that may occur after orthodontic treatment are discussed. Case Report: Twenty-year-old male patient admitted to our clinic because of caries around his brackets. The patient began orthodontic treatment at age 13, had been treated for 1 year and after orthodontic treatment has left voluntarily. Brackets has remained in the mouth for six years. During the clinical examination, cervical caries was seemed on maxillary incisors and canine tooth of the right mandibular; right and left mandibular first premolar teeth were lingual positioned. Extraoral examination revealed left submandibular lymphadenopathy and reduced mouth opening. Lower left second molar tooth was extracted because of its excessive damage and caused lymphadenopathy. Root canal treatment was performed to maxillary central and lateral incisors in the Endodontics clinic. After all fillings and root canal treatments was finished; the fiber bridge was applied to tooth cavity of left maxillary canine teeth by the support of palatal surface of teeth 22 and 23. Dental treatment was finished with the motivation of oral hygiene. Results: As a result of a 1-year follow-up of the patient, control of the decayed teeth were provided and oral hygiene continued. The patient does not want to see anymore of orthodontic treatment, so treatment was completed in this way.Öğe The quality of different preparation and root canal filling techniques in curved root canals(2014) Şimşek N.; Ahmeto?lu F.; Akinci L.; Kapdan A.Objectives: The aim of this study was to evaluate the quality of different root canal filling techniques that lateral compaction (LC) and thermoplasticized injectable (TPE) gutta percha in curved root canals which were prepared Revo-S or self-adjusting file (SAF) using digital radiographs. Materials and Methods: Fourty extracted mandibular molar of mesial canals of teeth which have curved root canals were prepared using SAF or Revo-S instruments. After determination of root canal curvatures in two directions, the canals were divided two subgroups (n=20, p>0.05). Both mesiobuccal and mesiolingual canals were shaped and filled with AH Plus and either LC technique or TPE gutta percha obturation technique. The specimens were stored for 1 week at 37 °C and 100% humidity to allow the complete setting of the sealer. Postoperative digital radiographs were taken to evaluate the quality of root canal fillings. Data were analysed using Mann-Whitney U tests. Result: In terms of the preparation techniques, no significant differences were found between the root canal filling techniques (p=0.051, p=0.127). Conclusion: Under the conditions of the present study, neither preparation nor obturation techniques did not affect the quality of root canal filling in curved root canals.
