Yazar "Colak, Hakan" seçeneğine göre listele
Listeleniyor 1 - 5 / 5
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Anticaries effect of atraumatic restorative treatment with fissure sealants in suburban districts of Turkey(Assoc Dental Sci Republic China, 2009) Ercan, Ertugrul; Dulgergil, Coruh Turksel; Dalli, Mehmet; Yildirim, Isil; Ince, Bayram; Colak, HakanBackground/purpose: This 3-year field trial was performed to compare the effectiveness of high-viscosity atraumatic restorative treatment with glass ionomer sealant (ART-GIS) on the development of caries in a population of children living in two distinct localities in Diyarbakir City in southeastern Anatolia, Turkey. One of these was a suburban district with tow socioeconomic conditions and tacked routine dental care, and the other was located in the city center and had a moderate socioeconomic status with proximity to a welt-designed dental center. Materials and methods: Two primary schools were selected as study sites in these two locations. In total, 368 ART-GIS procedures were performed on 208 children aged 9-11 years, white 174 children who were students at another school in the center of the same city did not receive the sealant and served as controls. The clinical status of the ART-GIS was evaluated at the baseline and during the first, second and third years after placement. Differences between the two groups for each evaluation period were analyzed using Student's t test for the two independent groups. Results: The control group had nearly ten, five and three times greater numbers of new caries than did the ART group during the first, second and third years, respectively. The difference between the groups was statistically significant for each examination period with respect to the number of children having new caries (Student's t test, P < 0.001), and new caries occurrence (Student's t test, P < 0.001). Conclusion: These results clearly show that the ART-GIS procedure can be used as a preventive method in rural and/or suburban areas where other preventive approaches are neither available nor economical.Öğe Comparative Evaluation of the Effects of Ozone, Diode Laser, and Traditional Cavity Disinfectants on Microleakage(Taylor & Francis Inc, 2014) Gunes, Sifa; Bahsi, Emrullah; Ince, Bayram; Colak, Hakan; Dalli, Mehmet; Yavuz, Izzet; Sahbaz, CaferAim: This study aimed to evaluate the effects on microleakage of the application of ozone gas, laser and traditional cavity disinfection under in vitro conditions. Material and Methods: Ninety third-molar teeth extracted for various reasons were used in this study. All the teeth were prepared with a standard V cavity on the buccal surface. Then the teeth were randomly allocated to one of 6 groups of 15 teeth; Group 1 benzalkonium chloride, Group 2 chlorhexidine gluconate, Group 3 sodium hypochloride, Group 4 diode laser, Group 5 ozone gas, Group 6 control group- no disinfection was applied. Primer was applied to the cavities, then bond and 10-s polymerization. Clearfil AP-X was used in the cavities as a hybrid composite and polymerized for 20 s. The samples then underwent 1000 thermal cycles of 30-s application, in baths at temperatures between 5 +/- 2 degrees C and 55 +/- 2 degrees C. All the samples were stirred in 0.5% basic phuxine solution and the sections taken under stereomicroscope were examined and photographed at 15 x magnification. SEM analysis was made and the obtained results were statistically evaluated with the Kruskal-Wallis test. Results: No significant difference was seen between the groups in respect of the microleakage values of both the occlusal and gingival edges (p < 0.05). Comparison of the microleakage values of the occlusal and gingival edges of the groups determined the least leakage to be in the ozone group (p < 0.05). Conclusion: No statistical significance was determined between the groups. However, the mean least microleakage was found in the ozone group and the highest amount in the control group.Öğe The Composition and Biologic Actions of Mineral Trioxide Aggregate: A Review(Duzce Univ, 2013) Toptanci, Ismet Rezani; Dalli, Mehmet; Colak, HakanAim: Mineral Trioxide Aggregate (MTA) is widely used in clinical application such as pulp capping, perforation repair, root-end sealing, canal filling at internal and external root resorption and pulpotomies in primary and permanent teeth. In endodontic field when using a material such as MTA the interaction between material and periapical tissue is so important for healing and life time of endodontic therapy. Although it is sealing ability, the interaction with cells or tissues and their replay to this material play major role for endodontic success. Methods: Literature review was performed using electronic and hand-searching methods for the clinical applications, experimental studies and cellular studies of MTA between 2000 and 2010. Results: MTA is a bioactive material when using vital pulpotomies, apical barrier formation for necrotic pulps and open apices. Numerous study and case reports show MTA is more effective material than other materials in these cases. Many studies have shown the effects of MTA on cementoblasts and odontoblasts. Conclusion: This review shows its composition, biologic action when used different endodontic procedure and interaction between cell and tissues.Öğe Effect of 1% chlorhexidine gel on the bonding strength to dentin(Elsevier Taiwan, 2010) Dalli, Mehmet; Ercan, Ertugrul; Zorba, Yahya Orcun; Ince, Bayram; Sahbaz, Cafer; Bahsi, Emrullah; Colak, HakanBackground/purpose: The purpose of this in vitro study was to evaluate the effect of 1% chlorhexidine (CHX) gel on dentin bond strengths of posterior composite resin applied with two different adhesive systems. Material and methods: In total, 75 extracted, caries-free human molars were used. The occlusal surface of each tooth was ground to create a flat dentin surface. Then, each tooth was mounted in acrylic. The dentin specimens were randomly assigned to five groups of 15 specimens each. In Group 1, Prime Et Bond NT (PBNT) was applied; in Group 2, a 1% CHX gel + etching for 15 s + PBNT were applied; in Group 3, etching + 1% CHX gel + PBNT were applied; in Group 4, Clearfil S-3 Bond was applied; and in Group 5, 1% CHX gel + Clearfil S-3 Bond were applied. A dentine bonding system was applied to dentin surfaces, and composite cylinders were built up using a special device and then light-polymerized. Specimens were mounted and sheared using an Instron universal testing machine at a cross-head speed of 0.5 mm/min. Results: The results were recorded in megapascals. The sheared specimens were examined under a light microscope, and the type of failure (adhesive, cohesive or mixed) was recorded. Data were compared by one-way analysis of variance and Tukey's honestly significant difference tests. Means were 16.4 +/- 4.1 MPa in Group 1, 16.2 +/- 3.9 MPa in Group 2, 13.0 +/- 4.5 MPa in Group 3, 11.9 +/- 2.7 MPa in Group 4, and 11.5 +/- 2.7 MPa in Group 5. The use of 1% CHX gel before acid etching was significantly higher than after etching on the shear bond strength of PBNT (P < 0.05), but did not differ significantly from PBNT alone (P > 0.05). Conclusion: Within the limitations of the present in vitro study, it was concluded that 1% CHX gel application did not adversely affect the shear bond strengths of dentin-bonding agents.Öğe Minimal intervention concept: a new paradigm for operative dentistry(Wiley, 2012) Dalli, Mehmet; Colak, Hakan; Hamidi, M. MustafaThe current treatment philosophy is to prevent and detect dental disease at the earliest stage in order to avoid invasive treatment. With the current understanding of the nature of dental disease and its process, the treatment philosophy is now changing to a more conservative approach and the concept of minimal intervention is gaining popularity in modern dentistry throughout the world. It is now established that demineralized but non-cavitated enamel and dentine can be healed and traditional surgical approach of drilling and filling may no longer be necessary as this only treats the symptoms of the disease and not the cause. However, when surgical intervention is indicated, the least invasive techniques such as preventive resin restoration and minimal cavity preparation are utilized. The aim of this article is to give dental professionals an overview of the concepts of minimal intervention dentistry and recent innovations in dental technology in both the diagnosis and treatment of dental caries.
