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Öğe An analysis of the aetiology, prevalence and clinical features of dentine hypersensitivity in a general dental population(Verduci Publisher, 2012) Bahşi, Emrullah; Dalli, Mehmet; Uzgur, Recep; Turkal, Mustafa; Hamidi, Mustafa M.; Çolak, HakanAIM, Dentine hypersensitivity may be defined as pain arising from exposed dentine typically in response to chemical, thermal or osmotic stimuli that cannot be explained as a rising from any other form of dental defect or pathology. The aim to this cross-sectional study was to determine prevalence of dentine hypersensitivity (DH) and to examine some associated etiological factors in a study of patients visiting general dental practitioners in Turkey. PATIENTS AND METHODS, A total of 1368 patients were examined for the presence of cervical dentine hypersensitivity by means of a questionnaire and intraoral tests by (air and probe stimuli). The patients have at least two different quadrants which have sensitive teeth with sound exposed cervical dentin on the facial surface were included the study. RESULTS, A total of 285 teeth were diagnosed as having dentine hypersensitivity in 73 patients, giving an overall prevalence figure for dentine hypersensitivity of 5.3%. 40-49 years age group was the cohort with the greatest number of subjects with DH and females had more predilection than males. Upper premolars were most affected and the commonest initiating factor was cold drinks. Subjects who smoked did not have more sensitive teeth on average than subjects who did not smoke (p > 0.05). Approximately half of the patients reported DH for a duration of within 1-3 days. The commonest etiological factor with the sensitive teeth was the gingival recession. CONCLUSIONS, The prevalence of dentine sensitivity in this sample was lower compared to studies carried out previously in different populations both general practice and hospital clinics. Further larger scale studies are required to assess its prevalence in Turkish population.Öğe Anticaries effect of atraumatic restorative treatment with fissure sealants in suburban districts of Turkey(Assoc Dental Sci Republic China, 2009) Ercan, Ertuğrul; Dülgergil, Çoruh Türksel; Dalli, Mehmet; Yıldırım, Işıl; İnce, Bayram; Çolak, 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 Can Dentin Surfaces Be Bonded Safely With Ozone and Boric Acid?(Taylor & Francis Inc, 2015) Ercan, Ertuğrul; Çolak, Hakan; Hamidi, Mehmet Mustafa; İbrahimov, Damla; Gülal, EsraThe aim of this study is to evaluate the effect of different cavity disinfectants on shear bond strength. In this study, 60 caries-free human molar teeth were used. Smooth dentin surfaces were revealed by cutting occlusal enamel and a standard smear layer was obtained by using 600-grid sandpaper. Specimens were randomly assigned to four groups according to the disinfectant used: Group 1: Control (no disinfectant); Group 2: Ozone; Group 3: Chlorhexidine, Group 4: Boric acid. Specimens were bonded using S3 Plus Bond and the composite buildups were created by using composite resin according to the manufacturer's instructions. After specimens were kept for 24 h, at 37 degrees C in distilled water, the shear bond strength test was measured with a universal test machine. The highest bond strength values were observed in the control group. The bond strength was significantly lower in the chlorhexidine, and boric acid-treated groups than it was in the control group (respectively, p = 0.046 and p = 0.028); however, no significant difference in the bond strength was observed between the ozone group and the control group (p = 0.444). The ozone group was detected as having the best shear bond strength values in groups which were applied to cavity disinfectants.Öğe Cleidocranial dysplasia: Etiology, clinicoradiological presentation and management(2012) Toptancı, İsmet Rezani; Çolak, Hakan; Köseoğlu, SerhatKleidokranial displazi anormal klavikula, genişlemiş suturlar ve fontaneller, süpernumeral dişler, kısa boy ve diger bir çok iskeletsel değişiklikle karakterize otozomal dominant iskeletsel displazidir. Kleidokranial displazi, gen 6p21 genindeki şifreleme çevirme faktörü CBFA1 ve runtrelated transcription factor 2 (RUNX2) de meydana gelen mutasyonlardan kaynaklanır. Kleidokranial displazi tek başına bir uzman ekibi tarafından izlenmeli veya sorunları bilen bir uzman tarafından takip edilmelidir.Öğe Effects of two different restorative materials on microleakage of class v cavities(Cumhuriyet University Faculty of Dentistry, 2010) Bağlar, Serdar; Dallı, Mehmet; Çolak, Hakan; Ercan, Ertuğrul; Hamidi, Mustafa M.Purpose: The aim of this study is to evaluate the micro-leakages of a composite restorative material and a high viscosity glass ionomer cement restorative material in class V cavities at in-vitro conditions. Materials and Methods: In this study, 30 extracted, caries-free human superior premolar teeth were used. Class V cavities were prepared on buccal surfaces of all teeth which were standardized to be 1mm below from the enamel-cement session. Teeth were randomly separated into two groups, each consists of 15 teeth. In first group the prepared cavities was filled with a composite resin (S3 Bond + Clearfil Esthetic; Kuraray, Tokyo, Japan). And in the second group the cavities was filled with high flowable glass ionomer cement (Fuji IX GP; GC, Tokyo, Japan). The restorative materials polimerizated with using a LED (Elipar Freelight; 3M ESPE, Seefeld, Germany) light source. All specimens were stored in distilled water for 24 hours. And all specimens were subjected to 10000 times thermal cycles of 5 degrees C/55 degrees C for 1 minute each. Teeth covered with nail polish except 1mm circumference of restorations and stored in %1 methylene blue solution for 24 hours. After washing, the teeth were sectioned perpendicular at bucco-lingual direction and evaluated under ax15 stereomicroscope. The scores were statistically analyzied using the Kruskal-Wallis and the Mann Whitney U tests. Findings: There were not any statistical difference between the experimental groups (p>0.05). In group 1, cervical and occlusal micro-leakage scores were statistically different (p<0.05). Although in group 2, there were no statistical differences between the cervical and occlusal microleakage scores. Results: The both restorative materials used in class V cavities, had been found successful in micro-leakage evaluation.Öğe The evaluation of reasons for replacement of amalgam and composite(2013) Bahsi, Emrullah; İnce, Bayram; Dallı, Mehmet; Şahbaz, Cafer; Çolak, Hakan; Acıkan, İzzet; Aslan, NecatAmalgam and composite restorations take prime place in restorative dental practices. Over time, restorations are replaced for various reasons. This study aimed to evaluate the reasons for restoration replacement of patients presenting at Dicle University, Dental Faculty, Restorative Dentistry Clinic. The study comprised 705 patients (402 female, 303 male) who presented at the dental clinic for routine dental treatment. Without taking gender into consideration, patients aged 15-80 who were determined to have amalgam and composite filling problems were included in the study. The patients were allocated to 5 groups according to age: Group 1, 16-25 years, Group 2, 26-35 years, Group 3, 36-45 years, Group 4, 46-55 years, Group 5, 56 years and over. The failure of the fillings was diagnosed from clinical and radiological evaluation results. The age, gender and reason for the replacement of the restoration were recorded for all patients. The obtained data was evaluated with Student's t test and a difference was determined between the age groups. Of 705 restorations, 378 (53.62%) were amalgam and 327 were composite (46.38%). When the reasons for replacement of restorations were examined the primary reason was secondary caries (30.78%), followed by fracture of the restoration (17.6%) and overflowing filling (15.46%). A significant difference was found between the age groups in terms of the parameter of reason for restoration replacement (p<0.05). To determine between which age groups this difference was more significant, the Tukey HSD test was applied as a multiple comparison test. The most significant reason for replacement of amalgams and composites was found to be secondary caries. The factor of gender had no effect on the reasons for replacement of the restoration. Failure of the restoration was seen to be greater in the 16-25 age group.Öğe Evaluation of school-based prevention program in Turkey: Results of a 24-month study(Dental Investigations Society, 2016) Dulgergil, Çoruh Türksel; Ercan, Ertuğrul; Çolak, HakanObjective: In this paper, cavity experiences of children with different levels of eruption and cavity activities that are enrolled at an elementary school with semi-rural characteristics in Kirikkale Provincial center were monitored for 2 years after a variety of protective applications. Materials and Methods: Three hundred and twenty-two children at the age of 7-11 were included in this study. Children were grouped as follows according to their cavity experiences and applications done: Group 1 - control group (with or without cavities) - was given hygiene training only; Group 2 - with medium level cavity activity (2-4 cavities in average) - oral hygiene training + surface restoration applied; Group 3 - children with 2-4 cavities on average - oral hygiene training + professional flour gel applied; Group 4 - children with 2-4 cavities in average - oral hygiene training + flour gel applied with brush; Group 5 - children with extreme cavity activity (children with 5 or more cavities) - oral hygiene training + surface restoration + professional flour gel combination applied. Results: At the end of the 2nd year, 277 children were reached. The increase of number of cavities in permanent teeth was determined as 35%, 0%, 1%, 0%, and 7% in groups 1-5, respectively. The difference between groups was found to be significant (Chi-square analysis, Pearson Chi-square = 27.002, P < 0.01). Conclusion: These findings have showed that, in Kirikkale Provincial center, some cavity-preventive measures such as surface restoration and gel applications, along with hygiene training, could provide optimum protection for school-age children. © 2016 European Journal of Dentistry.Öğe Halitosis: From diagnosis to management(2013) Aylıkçı, Bahadır Uğur; Çolak, HakanHalitosis is formed by volatile molecules which are caused because of pathological or nonpathological reasons and it originates from an oral or a non-oral source. It is very common in general population and nearly more than 50% of the general population have halitosis. Although halitosis has multifactorial origins, the source of 90% cases is oral cavity such as poor oral hygiene, periodontal disease, tongue coat, food impaction, unclean dentures, faulty restorations, oral carcinomas, and throat infections. Halitosis affects a person?s daily life negatively, most of people who complain about halitosis refer to the clinic for treatment but in some of the people who can suffer from halitosis, there is no measurable halitosis. There are several methods to determine halitosis. Halitosis can be treated if its etiology can be detected rightly. The most important issue for treatment of halitosis is detection etiology or determination its source by detailed clinical examination. Management may include simple measures such as scaling and root planning, instructions for oral hygiene, tongue cleaning, and mouth rinsing. The aim of this review was to describe the etiological factors, prevalence data, diagnosis, and the therapeutic mechanical and chemical approaches related to halitosis.Öğe Human immunodeficiency virus/acquired immunodeficiency syndrome knowledge among high school students in Kirikkale province of Turkey(2013) Aylıkçı, Bahadır Uğur; Bamise, Cornelius Tokunbo; Hamidi, Mehmet Mustafa; Turkal, Mustafa; Çolak, HakanBackground: The purpose of the present study was to assess the existing level of knowledge of high school children about human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) and the sources of their information. Materials and Methods: A cross-sectional survey was conducted in two high schools in Kirikkale, Turkey and data were collected by a self-administered questionnaire. Multi-stage sampling technique was used to obtain a representative sample. Results: Four hundred and seventy three participants; 230 males and 243 females were analyzed. Their ages ranged from 15 to 19 years with a mean age of 16.81 ± 1.27. 92.2% of the students claimed to have heard about HIV/AIDS prior to the study with slightly more females than males. Although with some misconceptions, majority of the participants knew that HIV is not transmitted by sharing meals, casual contact, and sleeping in the same room and using the same bathroom. 93.4% identified HIV/AIDS as a life-threatening disease and 27% believe that there is a cure for AIDS. 64% and 22.8% respectively believed that the people can protect themselves by using condoms and by avoiding sexual contact. Internet was preponderantly claimed as the most important source of information about HIV/AIDS. Conclusion: Empirical evidence from this study suggests that the students have a fairly high knowledge of HIV/AIDS. This is not without some misconceptions about the prognosis of the disease. Internet was the major source of HIV/AIDS information.Öğe Minimal intervention concept: a new paradigm for operative dentistry(Wiley, 2012) Dallı, Mehmet; Çolak, 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.Öğe One-year clinical evaluation of Quixfil and Gradia Direct composite restorative materials in posterior teeth(2013) Doğan, Damla; Ercan, Ertuğrul; Hamidi, Mehmet Mustafa; Aylıkçı, Bahadır Uğur; Çolak, HakanThe purpose of this study was to evaluate and compare the 12 month clinical performances of two different posterior composites in Class I and Class II restorations. Class I and class II cavities of 62 patients, 74 Quixfil (Dentsply/ Xeno V) and 68 Gradia Direct (GC America/G bond) composite restorations were placed by two dentists. Only small and medium-sized cavities were included in the study. Independent evaluations were performed at baseline (one week), after three months, six months, and one year, by one trained examiner using the modified U.S. Public Health Service rating criteria. Color match, marginal integrity, anatomical form, surface roughness, marginal or interfacial staining, postoperative sensitivity, and secondary caries were evaluated. Both restorative materials showed only minor changes, and no differences were detected between their performance at baseline and after 12 months. Postoperative sensitivity was observed in only one Quixfil restoration. In regard to the clinical performance, there was no statistically significant difference between the materials used. Both materials showed good clinical results with dominant alpha scores at the end of 12 months.Öğe Prevalence of burning mouth syndrome in adult Turkish population(2011) Çolak, Hakan; Bayraktar, Yusuf; Hamidi, Mehmet Mustafa; Uzgur, Recep; Toptancı, İsmet Rezani; Dallı, MehmetAğız yanması sendromu (AYS) kronik bir orofasiyal ağrı olarak tanımlanır ve semptomatik olarak dilde ve dudakta veya bütün ağız boşluğu içinde yangı tarzında bir ağrıyla karakterizedir. Uluslararası çalışmalarda Ağız yanması sendromunun prevalansının %0,6 ile %15 arasında değiştiği rapor edilmektedir. Bu çalışmada Türk toplumunda AYS prevalansının belirlenmesi amaçlanmıştır. Gereç ve yöntem: Demografik özellikler, tıbbi öykü ve hastalar tarafından alınan ilaçlar ile birlikte klinik verileri de içeren bir anket formu oluşturuldu. Bu kesitsel çalışma Kırıkkale Üniversitesi Diş Hekimliği Fakültesi Restoratif Diş Hekimliği bölümüne başvuran katılımcılar arasından rastgele seçilen 1000 hasta (500 kadın ve 500 erkek) üzerinde gerçekleştirilmiştir. Sonuçlar: 12 hastada ağız yanması sendromu tespit edilmiştir prevelansı %0,12 olarak bulunmuştur. Bu hastaların 2’ si erkek ve 10’u kadındır. Erkek kadın oranı 1:5 olarak bulunmuştur. Ağız yanması sendromu en çok dilde görülmüştür. Parafonksyonel alışkanlıklar en yaygın faktor olarak gözlemlenmiştir. Görsel analog skala (VAS) sonuçlarına göre ortalama (SD) yangı şiddeti seviyesi 5,45(1,69) olarak bulunmuştur. Sonuç: Ağız yanması sendromunun Türk toplumunda prevalansı düşük olup kadınlarda daha sık rastlanmaktadır.Öğe Prevalence of three-rooted mandibular permanent first molars among the Turkish population(Wolters Kluwer Medknow Publications, 2012) Çolak, Hakan; Özcan, E.; Hamidi, Mehmet MustafaBackground: This retrospective study was undertaken to determine the prevalence of three-rooted permanent mandibular first molars in digital periapical radiographic images obtained from a Turkish patient. Materials and Methods : Periapical radiographs of 640 subjects, which had been obtained in the Department of Oral Diagnosis Radiology, Kirikkale University Dental Faculty, Kirikkale, Turkey from June 2010 to March 2011, were screened and examined retrospectively. All radiographs were evaluated under optimal conditions using double magnifying glasses. Each radiograph was separately evaluated by two authors (H.C. and M.M.H.). Comparison of the incidence and the correlations between males and females and left- and right-side occurrences were analyzed by using the Pearson chi-square test with SPSS (15.0; SPSS Inc., Chicago, IL, USA). Results : The periapical radiographs of 9 patients, 4 females and 5 males, had three-rooted mandibular first molars. Of these three-rooted mandibular first molars, 7 were found on the right side and 5 on the left side. The overall incidence of patients with three-rooted mandibular first molars was 1.41. The incidence was 1.63 for men and 1.2 for women. Conclusion : The prevalence of three-rooted mandibular first molars from all teeth examined was 1 (12 of 1205), 1.17 (7 of 596) for the right side, and 0.82 (5 of 528) for the left side occurrences.Öğe Radiographic Study of the Prevalence of Dens Invaginatus in a Sample Set of Turkish Dental Patients(Medknow Publications & Media Pvt Ltd, 2012) Çolak, Hakan; Tan, Enes; Aylıkcı, Bahadir Uğur; Uzgur, Recep; Türkal, Mustafa; Hamidi, Mehmet MustafaAim: The aim of this study was to determine the prevalence of dens invaginatus in a sample of Turkish dental patients. Materials and Methods: The sample included 6, 912 panoramic radiographs from different Turkish dental patients. The ages of the patients ranged from 18 to 50 years. A tooth was considered having dens invaginatus if an infolding of a radiopaque ribbon-like structure equal in density to enamel was seen extending from the cingulum into the root canal. Maxillary and mandibular teeth were evaluated on panoramic radiographs to determine the type of dens invaginatus using Oehlers classification. Results: The overall incidence of patients with dens invaginatus was 0.17%. Dens invaginatus were detected in 15 teeth of a total of 192 150 teeth to give a tooth prevalence of 0.008%. Maxillary lateral incisors were most commonly affected teeth in the mouth (80% of cases), followed by maxillary canine teeth (20% of cases). The bilateral incidence of a symmetrical distribution was 25%. Conclusion: The occurrence of dens invaginatus among this Turkish population was rare. Attention should be paid to the presence of dens invaginatus and the treatment problems associated with it.Öğe Restorasyonların yapılma ve yenilenme nedenlerinin üniversite ve ağız diş sağlığı merkezlerine başvuran hastalarda değerlendirilmesi(Kırıkkale Üniversitesi, 2013) Çolak, Hakan; Dülgergil, Çoruh TürkselPratik temelli bu çalışmada; direkt restorasyonların yapılma ve yenilenme nedenlerinin, tercih edilen restoratif materyallerin ve kavite tiplerinin belirlenmesi amaçlandı. Ağız diş sağlığı merkezlerinde çalışmakta olan bir grup diş hekiminden, 4 haftalık süre içerisinde yaptıkları ilk 100 restorasyonu kaydetmeleri istendi. Ayrıca, Kırıkkale Üniversitesi Diş Hekimliği fakültesinde Restoratif Diş Hekimliği Anabilim Dalında yerleştirilen belirli sayıda restorasyon da kaydedildi. Restorasyon yapılma ve yenilenme nedenleri, hastanın yaşı/cinsiyeti ve restore edilen diş numarası gibi parametrelerin toplanmasında özel olarak dizayn edilmiş bir form kullanıldı. Yaşları 15-80 arasında değişen hastalardan, 5000 (%55) tanesi KÜDHF ve 4096?sı (%45) ağız diş sağlığı merkezlerinden olmak üzere toplamda 9096 restorasyonun verisi toplandı. 9096 restorasyonun 7183?si (%78.2) ilk yerleştirmeler, 1983 (%21.8)?ü restorasyon yenilemeleri idi. Diğer kavite tiplerine kıyasla en çok sınıf II kavitelere restorasyon yerleştirildiği tespit edildi (p=0.000). Rezin kompozitler en sık tercih edilen (%76,4) restoratif materyaller olarak belirlendi ve bunu amalgamın (%20,5) takip ettiği görüldü. Amalgamların çoğunlukla sınıf II kompozitlerin ise sınıf I kavitelerde tercih edildiği izlendi. Erkek hastalara kıyasla bayanlara daha düşük oranda amalgam yerleştirildiği bulundu (p=0.000). Genel anlamda, restorasyonların çoğunlukla sekonder çürükler nedeniyle yenilendiği ve bu oranın yenilenen amalgamlarda %40,6, kompozitlerde ise %58 olduğu belirlendi. Sıklıkla restore edilen dişlerin sıralanması ise; alt birinci molarlar (%14,9) üst birinci molarlar (%12,9) ve alt ikinci molarlar (%12,8) şeklinde bulundu. Genç diş hekimlerinin, daha tecrübelilere kıyasla restorasyon yenilenmelerinde daha fazla oranda sekonder çürük teşhis ettikleri tespit edildi (p=0.000). Hasta yaşı ve cinsiyeti ile restorasyon yenilemeleri arasında belirgin ilişki tespit edildi (p=0.000). Erkek hekimlere kıyasla, bayan hekimlerin restorasyon yenilenmelerinde sekonder çürüklere daha fazla oranda atıfta bulundukları tespit edildi (p=0.000). Başta birincil çürükler olmak üzere, ilk restorasyonlarda genç hekimlerin amalgamı daha fazla tercih ettikleri bulundu (p<0.001).Öğe Sınıf V kavitelerde dezenfektanların mikrosızıntı üzerine etkisi: In vitro çalışma(2009) Dallı, Mehmet; İnce, Bayram; Şahbaz, Cafer; Bahşi, Emrullah; Çolak, Hakan; Zorba, Yahya Orçun; Ercan, ErtuğrulAmaç: Bu çalışmanın amacı klorheksidin içerikli üç farklı kavite dezenfektanın sınıf V kavitelerde mikrosızıntı üzerine etkisini in vitro şartlarda değerlendirmekti. Gereç ve Yöntem: Bu çalışmada 80 adet çürüksüz insan dişi kullanılmıştır. Sınıf V kaviteler, her dişin bukkal yüzeylerine mine-sement sınırından 1 mm aşağıda olacak şekilde standardize hazırlandı. Dişler her biri 20 disten oluşan rastgele 4 gruba ayrıldı. 1. Grup: kontrol grubu değerlendirildi herhangi bir dezenfektan uygulanmadı, 2.grupta %1 klorheksidin jel, 3.grupta % 2 klorheksidin glukonat solüsyonu ve 4. grupta % 0,2 klorheksidin glukonat solüsyonu uygulandı. Daha sonra kaviteler Xeno V(Dentsply DeTrey, Konstanz, Germany) adeziv ve Quxfill (Dentsply, Kontstanz, Germany) ile restore edildi. LED (Light Emitting Diode) ile polimerize edildi. Restorasyonların 1 mm. çevresi hariç dişlerin bütün yüzeyleri 2 tabaka tırnak cilası ile kaplandıktan sonra, 24 saat %2’lik metilen mavisi solüsyonunda bekletildi. Daha sonra dişler yıkanıp, bukkolingual yönde dikey olarak kesilerek x30 büyütmede stereomikroskop ile degerlendirildi. Sonuçlar Kruskal-Wallis testi ile istatistiksel olarak değerlendirildi. Bulgular: Kontrol grubu ile deney üç grup arasında mikrosızıntı skorları karşılaştırıldığında gruplar arasında istatistiksel anlamlı bir fark olmadıgı tespit edildi. (p0.05) Sonuç: Sınıf V kavitelerde klorheksidin içerikli değişik form ve oranlardaki kavite dezenfektanlarının self-etching adeziv ( Xeno V) öncesi uygulanmasının mikrosızıntı üzerine olumsuz bir etki göstermediği tespit edildi.Öğe Termal siklusun mikrosızıntıya etkisinin sınıf V kavitelerde kompozit restorasyonlarda in vitro incelenmesi(2010) Dallı, Mahmut; Ercan, Ertuğrul; İnce, Bayram; Çolak, Hakan; Bahşi, Emrullah; Şahbaz, Cafer; Bağlar, SerdarAmaç: Bu çalışmanın amacı, termal siklusun sınıf V restorasyonlarda yeni nesil adeziv sistemlerin mikrosızıntısı üzerine etkisini in vitro koşullarda değerlendirmekti. Gereç ve Yöntem: Bu çalışmada 150 adet çürüksüz insan molar dişi kullanıldı. Dişlerin bukkal yüzeylerinde standardize sınıf V kaviteler hazırlandı. Her grupta 30 adet olacak şekilde dişler rastgele beş gruba ayrıldı. 1.grup: Clearfil S3 Bond, 2.grup: Xeno V, 3.grup: G Bond 4.grup: Optibond All In One 5.grup: iBond. Restorasyonlarda üretici firma tavsiyelerine uyuldu. Daha sonra dişler iki eşit (n15) gruba ayrıldı. Birinci gruptaki dişlere (n15) 55C termal siklus işlemi 10.000 kez uygulandı. 2.gruba ise uygulanmadı. Tüm dişlerdeki dolguların 1 mm çevresi hariç dişler tamamen 2 kat tırnak cilası ile kaplandıktan sonra 24 saat 37 0C de % 0.5’lik metilen mavisinde bekletildi. Örneklerden alınan kesitlerin mikrosızıntı dereceleri stereomikroskop altında skorlandı. Elde edilen sonuçlar istatistiksel olarak Kruskal-Wallis ve Mann Whitney U testleri ile değerlendirildi. Bulgular: Gruplar arası mikrosızıntı skorlarında istatistiksel farklılık olduğu tespit edildi(p0.05). Termal siklus uygulanan ve uygulanmayan dişler arasında mikrosızıntı en fazla iBond uygulanan dişlerde görüldü. Gruplar kendi aralarında karşılaştırıldığında anlamlı fark bulunmamıştır. Sonuç: Çalışmamızda termal siklus ile ağız ortamı taklit edilmeye çalışılırken, termal siklusun mikrosızıntıyı etkilemediği belirlenmiştir.Öğe The Composition and Biologic Actions of Mineral Trioxide Aggregate: A Review(Duzce Univ, 2013) Toptancı, İsmet Rezani; Dallı, Mehmet; Çolak, 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 Unilateral fusion of mandibular permanent lateral incisor with canine: A report of a rare case(2013) Ayyıldız, Erdem; Çolak, Hakan; Turkal, Mustafa; Uzgur, RecepFusion is a developmental anomaly which occurs due to a union of one or more adjacent teeth during morpho-differentiation of the dental germs. Early diagnosis of this condition is important because it may cause clinical problems, such as esthetic concerns and arch asymmetry. These anomalies may be unilateral or bilateral and may affect either dentition, although the deciduous teeth are more commonly affected. This report describes a rare case of unilateral fusion between the mandibular permanent lateral incisors and the canine. Only few cases have been previously reported in the English literature. Hence this article aimed at reporting a case of this rare condition and evaluating the presence of any associated pathology.
