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    Does melatonin as an irrigation solution increase the adhesive quality of root canal sealer?
    (2019) Tosun, Samet; Karataslioglu, Emrah
    Aim: To evaluate the push-out bond strength of AH-Plus when Melatonin used as an endodontic irrigation.Material and Methods: Ninety extracted human anterior incisors were selected randomly. The teeth were instrumented with R25 Reciproc® files and irrigated according to one of the irrigation protocols included as (n=15): G1: 5.25% NaOCl; G2: 17% EDTA; G3: 0.2% Melatonin; G4: 5.25% NaOCl + 17% EDTA; G5: 5.25% NaOCl + 0.2% Melatonin; G6: 0.2% Melatonin + 17% EDTA. After the root canal obturation procedures, roots were sectioned in coronal, middle and apical of root thirds. Push-out tests were performed Result were analyzed by ANOVA and Tukey tests (P0.05).Results: In the coronal thirds, there were significant differences among the groups. Melatonin+EDTA group showed had greater the bond strength than other groups, except NaOCl+Melatonin. In the middle thirds, NaOCl group showed significantly the lowest bond strength than other groups. In the apical thirds, NaOCl and melatonin groups showed significantly worse (P0.05). Conclusion: The use of Melatonin as a final irrigant significantly increased the push out bond strength of an AH-Plus sealer to root dentin. Further studies are needed to determine appropriate concentration and time used for melatonin.
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    Effects of caffeic acid phenethyl ester on root canal dentin: A SEM/EDX study
    (2020) Karataslioglu, Emrah; Tosun, Samet
    Aim: To evaluate the effects of Caffeic Acid Phenethyl Ester (CAPE) and its combination with EDTA and NaOCl on the surface of root canal dentine. Material and Methods: Ninety human extracted central anterior teeth were instrumented. Teeth were divided into six groups according to irrigation regime: (n=15). Group 0 (negative control) saline; group 1: 5.25% NaOCl/ distilled water (positive control); group 2: 0.5% CAPE; group 3: 5.25% NaOCl/17% EDTA; group 4: 5.25% NaOCl/0.5% CAPE and group 5: 0.5% CAPE/17% EDTA. Roots were splitted longitudinally and examined under scanning electron microscopy. Energy Dispersive X-Ray (EDX) method was used to analyse the root dentine mineral content. Results: A significant difference in smear layer (SR) was found between group 3 and group 4 (P0.05).Conclusions: In this study, CAPE did not result in better SR removal compared to NaOCl at all levels of the root canals. Overall, Group 5 was as effective as group 3 in SR removal. The mineral content of root dentin has changed.
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    Morphological evaluation of maxillary and mandibular canines using cone-beam computed tomography in Turkish population
    (2019) Karataslioglu, Emrah; Kalabalik, Fahrettin
    Aim: The aim of the present study was to evaluate the root canal morphology of the maxillary and mandibular canines using cone-beam computed tomography (CBCT) in a Turkish population.Material and Methods: CBCT images of 377 maxillary and 419 mandibular canines were examined. The number of roots and their morphology, number of canals per root and canal configurations according to the Vertucci’s classification were recorded. Canal configurations and presence or absence of lateral canals were examined regarding gender, age groups, and tooth side. Anatomic symmetry in canal morphology of bilateral canines was also recorded. The data were evaluated by Pearson Chi-square test (p .05). Results:The prevalence of type I canal configuration in maxillary and mandibular canines was 96.3% and 87.8%, respectively. Twenty-one percent of the maxillary canines and 14.8% of the mandibular canines had accessory canals. In maxillary canines, no significant difference was observed in the prevalence of accessory canals between males and females and between age groups. In mandibular canines, lateral canals and complex canal morphology were detected significantly more often in females. Prevalence of complex root canal increased with age in both maxillary and mandibular canines and great anatomic symmetry was observed in canal morphology of bilaterally present teeth in the same patient.Conclusion: CBCT is a useful tool for evaluation of root and canal morphology. Our results can provide valuable aids for clinicians during root canal treatment of canines.