Yazar "Cantekin, Kenan" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Microshear bond strength of preheated silorane- and methacrylate-based composite resins to dentin
    (WILEY-HINDAWI, 2016) Demirbuğa, Sezer; Uçar, Faruk İzzet; Çayabatmaz, Muhammed; Zorba, Yahya Orçun; Cantekin, Kenan; Topcuoğlu, Hüseyin Sinan; Kılınç, Halil İbrahim
    The aim of this study was to investigate the effect of preheating on microshear bond strength (MSBS) of silorane and methacrylate-based composite resins to human dentin. The teeth were randomly divided into three main groups: (1) composite resins were heated upto 68 degrees C; (2) cooled to 4 degrees C; and (3) control [room temperature (RT)]. Each group was then randomly subdivided into four subgroups according to adhesive system used [Solobond M (Voco), All Bond SE (Bisco), Clearfil SE Bond (CSE) (Kuraray), Silorane adhesive system (SAS) (3M ESPE)]. Resin composite cylinders were formed (0.9mm diameterx0.7mm length) and MSBS of each specimen was tested. The preheated groups exhibited the highest MSBS (p<0.001) and the groups cooled to 4 degrees C exhibited the lowest MSBS (p<0.001). The CSE showed higher MSBS than the other adhesives (p<0.001). This study concludes that preheating of composite resins may be an alternative way to increase the MSBS of composites on dentin. SCANNING 38:63-69, 2016. (c) 2015 Wiley Periodicals, Inc.
  • Küçük Resim Yok
    Öğe
    Three-dimensional evaluation of the pharyngeal airway volumes in patients affected by unilateral cleft lip and palate
    (MOSBY-ELSEVIER, 2014) Celikoglu, Mevlut; Buyuk, Suleyman Kutalmis; Sekerci, Ahmet Ercan; Ucar, Faruk Izzet; Cantekin, Kenan
    Introduction: Patients affected by cleft lip and palate often have complaints of snoring and respiratory difficulties during sleep. The purposes of this study were to evaluate nasopharyngeal, oropharyngeal, and total airway volumes of patients affected by unilateral cleft lip and palate and to compare them with a well-matched control group without unilateral cleft lip and palate using cone-beam computed tomography. Methods: The study sample consisted of 60 patients (26 girls, 34 boys) divided into 2 groups: unilateral cleft lip and palate (20 boys, 10 girls; 8 right sided, 22 left sided; mean age, 14.6 +/- 6 3.2 years) and no cleft (control group; 14 boys, 16 girls; mean age, 14.8 +/- 62.8 years). Nasopharyngeal, oropharyngeal, and total airway volumes of the subjects in both groups were calculated 3 dimensionally with cone-beam computed tomography. Group differences in relation to cleft side, sex, and cleft presence were statistically tested at P <0.05. Results: Patients affected by unilateral cleft lip and palate had similar airway volumes regardless of the side of the cleft. In addition, no statistically significant differences were found between the sexes in the 2 groups. Patients affected by unilateral cleft lip and palate had smaller nasopharyngeal, oropharyngeal, and total airway volumes when compared with the control group. The difference for oropharyngeal airway volume (-4036.7 mm(3)) was statistically significant (P <0.05), whereas nasopharyngeal volume (-21.6 mm(3)) and total airway volume (-4057.3 mm(3)) differences were not significant (P >0.05). Conclusions: Patients affected by unilateral cleft lip and palate had decreased volumes of oropharyngeal (P <0.05) and total (P >0.05) airways compared with the well-matched control group without unilateral cleft lip and palate.