Ozgür Ilke Atasoy Ulusoy

Gazi University, Ankara, Ankara, Turkey

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Publications (4)6.89 Total impact

  • Bağdagül Helvacioğlu Kivanç · Ozgür Ilke Atasoy Ulusoy · Güliz Görgül
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    ABSTRACT: The objective of the study was to observe the morphological changes on root canal dentin after Er:YAG laser and Nd:YAG laser treatment. Twenty-one teeth biomechanically prepared were divided into three groups with seven teeth of each. Group A was unlased as a control. In group B, Er:YAG laser and in group C, Nd:YAG laser was applied to the root canal dentin. The roots were split longitudinally and examined using a scanning electron microscopy for the evaluation of debris, smear layer, and recrystallization. There was no statistically significant difference between the groups. This study indicates that laser beam is not effective in removing debris and smear layer.
    No preview · Article · Aug 2008 · Lasers in Medical Science
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    Cagri Ulusoy · Ozgür Irmak · Yildirim Hakan Bagis · Ozgür Ilke Atasoy Ulusoy
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    ABSTRACT: The objective of the present investigation was to determine the intrapulpal temperature changes and to compare the shear bond strength (SBS) of bondable buccal tubes bonded by high-intensity light sources. Ninety caries-free human first molar teeth extracted for periodontal reasons were used. For the temperature measurement test, 30 teeth were randomly divided into three groups (n = 10) whereas 60 teeth were used in three groups (n = 20) for SBS testing. Three light sources, high-intensity halogen, blue light-emitting diode (LED), and xenon plasma arc (PAC), were used for polymerization of Transbond XT. Temperature variations (Delta T) were recorded by a K-type thermocouple wire connected to a data logger. For SBS testing, a universal testing machine was used at a crosshead speed of 1 mm/minute until buccal tube bonding failure occurred. Data were analyzed using the Kruskal-Wallis test. The high-intensity halogen light resulted in significantly (P < 0.01) higher intrapulpal temperature changes than the LED or PAC. The results of the shear bond test revealed significant (P < 0.05) differences only between the halogen and LED groups. The findings of the present investigation showed that high-intensity curing devices can safely be used in bonding buccal tubes to molar teeth without causing a deleterious effect on the dental pulp.
    Preview · Article · Aug 2008 · The European Journal of Orthodontics
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    Ozgür Ilke Atasoy Ulusoy · Ozgür Genç · Seda Arslan · Tayfun Alaçam · Güliz Görgül
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    ABSTRACT: The aim of this study was to compare the fracture resistance of roots obturated with different materials. Sixty root canals were instrumented and divided into 4 equal groups (n = 15 each). The root canals in group 1 were filled with AH26 sealer and gutta-percha, in group 2 with Resilon and Epiphany, and in group 3 with Ketac-Endo Aplicap and gutta-percha. Fifteen root canals had no obturation. The force required to fracture was recorded. The data was analyzed with analysis of variance and Duncan test. The mean force of fracture for group 1 was significantly higher than for the other 3 groups (P < .05). There was significant difference between group 2 and group 3 (P < .05). Group 2 and group 3 were not significantly different from the control group (P > .05). The use of AH26 + gutta-percha increased the fracture resistance of instrumented root canals compared with Resilon + Epiphany and Ketac-Endo Aplicap + gutta-percha.
    Preview · Article · Dec 2007 · Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
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    Ozgür Ilke Atasoy Ulusoy · Güliz Görgül
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    ABSTRACT: The incidence of second palatal root in the maxillary second molar is very rare. This case report describes the treatment of a 4-rooted maxillary second molar with 2 distinct palatal roots. Clinical examination and radiographs showed the presence of a second palatal root. After biomechanical preparation, the root canals were filled with gutta-percha cones and AH26 sealer. One year later, the restored tooth and periodontal tissues were healthy both clinically and radiographically.
    Preview · Article · Nov 2007 · Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology