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Öğe As a standart preventive method brushon fluoride application in primary schools: Four years field study results(Cumhuriyet University Faculty of Dentistry, 2015) Dülgergil C.T.; Hamidi M.M.; Dalli M.; Ercan E.; Türkoglu Ö.Objectives: The aim of this study was to evaluate the medium-and long-term effect of "brush on fluoride gel" application which is a simplified preventive method in a city center including whole primary schools. Materials and Methods: In 2007, of the 2348 first grade primary school children (born in 1999) being teached at 37 primary school at Kirikkale city center, 480 were selected, and equally divided as control and study groups. While in study group, all children had routinely get brush on fluoride gel application four-times a year during 3 years (total 12 times), using 2 percent neutral fluoride gel; others were subjected to oral hygiene education at least one time a year. All the examination procedures were yearly performed using World Health Organization (WHO) criteria at the first-second and fourth year. Results: While there was no statistically significant difference between the groups at baseline, it was not true at 4th years DMFT results (DMFT values for control and study groups were 0,33±0,72 and 0,69±1,15, respectively. p=0,001). Similar trend was observed at baseline and 4th year results for caries prevalence (p values for baseline and 4th year comparisons were p=0,049 and p=0,004, respectively). Conclusions: Considering as a simplified oral health preventive programs which may be important to established tooth-brushing habit could lead to an observational difference in caries prevalence. However, various primitive preventive methods could need to be supported by the risk-based additional preventive applications in high risk population.Öğe Does chlorhexidine affect the shear bond strengths of orthodontic brackets?(Association for Dental Sciences of the Republic of China, 2011) Catalbas B.; Ercan E.; Dalli M.; Gelgor I.E.; Erdemir A.Background/purpose: The purpose of this study was to examine the effect of 1% chlorhexidine (CHX) gel on the shear bond strength (SBS) of orthodontic brackets bonded with Transbond XT (XT, 3M Unitek) and Transbond Plus Self-Etching Primer (TSEP, 3M Unitek). Materials and methods: In total, 75 extracted premolars were collected and randomly divided into five groups of 15 teeth each. Brackets were bonded to teeth using a different experimental technique for each group as follows: (I) (control): etch/dry/Transbond XT; (II) CHX gel/etch/dry/Transbond XT; (III) etch/dry/CHX gel/Transbond XT; (IV) dry/TSEP; and (V) CHX gel/dry/TSEP. All products were used according to the manufacturers' instructions. An Instron Universal Testing Machine was used to directly apply an occlusal shear force onto the enamel-bracket interface at a speed of 0.5 mm/min. Residual adhesive on each tooth was evaluated using an adhesive remnant index (ARI). Analysis of variance was used to compare the SBS of the groups, and a Chi-squared test was used to compare ARI scores. Results: Group I had the highest mean SBS (16.47 ± 4.2 MPa), followed by Groups II (16.24 ± 4.5 MPa), III (13.08 ± 4.50 MPa), IV (11.95 ± 2.7 MPa) and V (11.16 ± 2.8 MPa). No statistical differences were observed between Groups I and II (P > 0.05) or between groups IV and V (P > 0.05). However, SBS scores for Groups IV and V were significantly lower than those of Groups I and II (P > 0.05). No significant difference was observed in ARI scores among any of the groups (P > 0.05). Prior application of CHX gel did not significantly affect the SBS of orthodontic bonding adhesives. © 2011, Association for Dental Sciences of the Republic of China.Öğe Effects of two different restorative materials on microleakage of class v cavities(Cumhuriyet University Faculty of Dentistry, 2010) Baglar S.; Dalli M.; Çolak H.; Ercan E.; Mustafa Hamidi 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 Evaluation of school-based prevention program in Turkey: Results of a 24-month study(Dental Investigations Society, 2016) Dulgergil C.T.; Ercan E.; Colak H.Objective: 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 One-year clinical evaluation of Quixfil and Gradia Direct composite restorative materials in posterior teeth.(2013) Doğan D.; Ercan E.; Hamidi M.M.; Aylikçi B.U.; Colak H.The 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 Shear bond strength of bulk-fill and nano-restorative materials to dentin(Dental Investigations Society, 2016) Colak H.; Ercan E.; Hamidi M.M.Objectives: Bulk-fill composite materials are being developed for preparation depths of up to 4 mm in an effort to simplify and improve the placement of direct composite posterior restorations. The aim of our study was to compare shear-bond strength of bulk-fill and conventional posterior composite resins. Materials and Methods: In this study, 60 caries free extracted human molars were used and sectioned parallel to occlusal surface to expose midcoronal dentin. The specimens were randomly divided into four groups. Total-etch dentine bonding system (Adper Scotchbond 1XT, 3M ESPE) was applied to dentin surface in all the groups to reduce variability in results. Then, dentine surfaces covered by following materials. Group I: SonicFill Bulk-Fill, Group II: Tetric EvoCeram (TBF), Group III: Herculite XRV Ultra, and Group IV: TBF Bulk-Fill, 2 mm × 3 mm cylindrical restorations were prepared by using application apparatus. Shear bond testing was measured by using a universal testing machine. Kruskal-Wallis and Mann-Whitney U-tests were performed to evaluate the data. Results: The highest value was observed in Group III (14.42 ± 4.34) and the lowest value was observed in Group IV (11.16 ± 2.76) and there is a statistically significant difference between these groups (P = 0.046). However, there is no statistically significant difference between the values of other groups. In this study, Group III was showed higher strength values. Conclusion: There is a need for future studies about long-term bond strength and clinical success of these adhesive and bulk-fill systems. © 2016 European Journal of Dentistry.Öğe Topical fluoride application methods in dentistry(Cumhuriyet University Faculty of Dentistry, 2010) Ercan E.; Baglar S.; Çolak H.Prevention of dental caries in children and adults is one of the hallmarks of contemporary dental practice. While there are multiple components of preventive dental programs developed by dentists for their patients, perhaps none is as important and effective as the appropriate use of fluoride. Dentists have several options for optimizing the fluoride exposure of their patients. The purposes of this paper are to review various methods of topical fluoride methods applied both clinically and self-applied in dental practice.
