Yazar "Ocak M.S." seçeneğine göre listele

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    Comparative analysis of three different filling techniques and the effects of experimental internal resorptive cavities on apical microleakage
    (2014) Keles A.; Ahmetoglu F.; Ocak M.S.; Dayi B.; Bozkurt A.; Orucoglu H.
    Objectives: The aim of this study was to evaluate the sealing abilities of three different gutta-percha techniques in experimentally defective roots (EDR) and non-defective roots (NR). Materials and Methods: Sixty canine teeth were divided into six groups of ten; Group 1, NR + cold lateral condensation (CLC); Group 2, EDR + LC; Group 3, NR + BeeFill; Group 4, EDR + BeeFill; Group 5, NR + Thermafil; and Group 6, EDR + Thermafil. Apical leakage was measured using a computerized fluid filtration meter with a laser system. Results: Statistical analysis revealed that the CLC demonstrated more microleakage in the EDR than in the NR (P < 0.01). Thermafil demonstrated more microleakage in the NR than in the EDR (P < 0.01). No statistically significant differences were found between the BeeFill groups (P > 0.05). Conclusions: The results of this study indicate that internal resorptive cavities can affect the apical sealing properties of different root canal filling techniques, with Thermafil ensuring the lowest apical microleakage. © 2014 Dental Investigations Society.
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    Comparison of different retreatment techniques and root canal sealers: a scanning electron microscopic study.
    (2014) Simsek N.; Keles A.; Ahmetoglu F.; Ocak M.S.; Yologlu S.
    The aim of this study was to evaluate the effectiveness of two retreatment techniques, in terms of the operating time and scanning electron microscopy (SEM) results, in removing three different root canal sealers from root canals that were previously filled with gutta-percha. Sixty extracted single-rooted human premolars were divided into three groups and filled with iRoot SP, MM Seal, and AH Plus sealers, along with gutta-percha, through a lateral compaction technique. Root canal fillings of the samples were removed by ESI ultrasonic tips or R-Endo files. The time to reach the working length was recorded. Longitudinally sectioned samples were examined under SEM magnification. Each picture was evaluated in terms of the residual debris. Data were statistically analyzed with the Kruskall-Wallis test. No statistically significant differences were found in terms of operating time (p>0.05). Significant differences in the number of debris-free dentinal tubules were found among the root canal thirds, but this finding was not influenced by the experimental group (p<0.05). Resin sealer tags were observed inside the dentinal tubules in the MM Seal group. Under the conditions of this study, it may be established that there was no difference among the sealers and retreatment techniques.
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    A different prosthetic approach to wear teeth: Case report
    (Cumhuriyet University Faculty of Dentistry, 2015) Atala M.H.; Ocak M.S.; Eşer B.; Polat N.T.
    Excessive tooth wear occurs with dental hard tissue destruction due to pathological reasons. The etiological factors may be mechanical, chemical and psychological, or their combinations. Dental attrision creates serious problems with masticatory and speech functions, and esthetics of the patients. Excessive occlusal wear can also cause loss of vertical dimension. This serious loss of tooth structure, requires a comprehensive restorative treatment. 45 years old female patient was admitted to our clinic with complaints of loss of aesthetics and masticatory function. First of all, the root canal treatment of the upper front teeth -all of which is vital- was performed. Then the crown lengths were extended by prefabricated posts and composite cores. The patient's occlusal vertical dimension increased by restorations of temporary acrylic crowns. The patient has been made to use these acrylic temporary crowns for 3 months to get used to the new vertical dimension. At the end of this period, the patient's upper and lower teeth were restored with metal-ceramic crowns. An occlusal splint was made for protective purposes.
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    Endodontic treatment of hypertaurodontism with multiple bilateral taurodontism
    (2013) Simsek N.; Keles A.; Ocak M.S.
    The term taurodontism is derived from the Latin word tauros, for "bull," and the Greek term odus, for "tooth," or "bull tooth." Taurodontism is a morpho-anatomical developmental anomaly, which is seen infrequently in teeth only. It is characterized by a deficiency in the constriction at the cement-enamel junction, with lengthened pulp chambers and apical displacement of the pulpal floor. This gives the tooth a quadrilateral or cylindrical look. This report presents a case of multiple bilateral taurodontism and the successful endodontic treatment of the tooth that had hypertaurodontism. A male patient was referred to the endodontic clinic with decayed left maxillary first molar. Hypertaurodontism was confirmed after clinical and radiographic examination. Panaromic X-rays revealed that all of the patient?s molar teeth were taurodontic. Taurodontism offers challenges to the practitioner during shaping and disinfection and at the time of filling the root canals.