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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 Does chlorhexidine affect the shear bond strengths of orthodontic brackets?(Elsevier Taiwan, 2011) Catalbas, Bulent; Ercan, Ertugrul; Dalli, Mehmet; Gelgor, Ibrahim Erhan; Erdemir, AliBackground/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. Conclusions: CHX gel is thought to obviate initial caries lesions during fixed orthodontic treatment. Copyright (C) 2011, Association for Dental Sciences of the Republic of China. Published by Elsevier Taiwan LLC. All rights reserved.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 Effect of Different Cavity Disinfectants on Shear Bond Strength of Composite Resin to Dentin(Quintessence Publishing Co Inc, 2009) Ercan, Ertugrul; Erdemir, Ali; Zorba, Yahya Orcun; Eldeniz, Ayce Unverdi; Dalli, Mehmat; Ince, Bayram; Kalaycioglu, BarisPurpose: The aim of this study was to evaluate the effect of different cavity disinfectants on dentin bond strengths of composite resin applied with two different adhesive systems. Materials and Methods: One hundred mandibular third molars were sectioned parallel to the occlusal surface to expose midcoronal dentin. The dentin surfaces were polished with waterproof-polishing papers The specimens were randomly divided into 5 groups of 20 each. In group 1, the specimens were not treated with any cavity disinfectants and served as control. From groups 2 to 5. dentin surfaces were treated with the following cavity disinfectants, respectively; 2% chlorhexidine solution, 2.5% NaOCl, 1% chlorhexidine gel, 3% H2O2. The specimens were then randomly divided into 2 subgroups including ten teeth each to evaluate the effect of different bonding systems Dentin bonding systems were applied to the dentin surfaces and the composite buildups were created After the specimens were stored in an incubator for 24 h. the shear bond strength was measured at a crosshead speed of 1 mm/min. The bond strength data were analyzed with one way analysis of variance and Tukey-HSD tests. Results: There was no significant difference between chlorhexidine gel and control groups regardless of the type of the bonding agent (p > 0.05). On the other hand, pretreatment with NaOCl, H2O2 or chlorhexidine solutions had a negative effect on the shear bond strength of self-etching bonding systems Conclusion: The findings of this study suggest that when NaOCl, H2O2 or chlorhexidine solution Eire used as a cavity disinfectant, an etch-and-rinse bonding system should be preferredÖğe Effect of intracanal medication with calcium hydroxide and 1% chlorhexidine in endodontic retreatment cases with periapical lesions(Elsevier Singapore Pte Ltd, 2007) Ercan, Ertugrul; Dalli, Mehmet; Dulgergil, C. Turksel; Yaman, FerhanBackground/Purpose: Calcium hydroxide (Ca(OH)(2)) has been widely used as an intracanal medicament for endodontic retreatment, but very few studies used both Ca(OH)(2) and 1% chlorhexidine (CHX) as intracanal medicaments. The purpose of this study was to assess the in vivo effectiveness of a combination of Ca(OH)(2) and 1% CHX as intracanal medicaments in endodontic retreatment cases with periapical lesions. Methods: Previous cases of endodontically treated teeth with periapical pathosis in 70 patients (36 men and 34 women, age range 18-60 years) were included. Of these teeth, 59 had received root canal treatment and 11 had been subjected to previous apical surgery, indicating endodontic failure. Following the routine procedures, including canal reshaping and irrigation with 2% CHX, a canal medication material containing Ca(OH)(2) powder and a 1% CHX solution was placed into the root canals. Over a 6-week period, the intracanal medication was periodically changed until the teeth became asymptomatic. Patients were recalled at 3-month intervals for radiographic and clinical examination. Results: Our clinical and radiographic assessment of retreatment cases showed complete healing in 41 (64%) teeth, incomplete healing in 9 (14%) teeth, and failure in 14 (22%) teeth. For complete healing teeth, the healing time varied from 6 to 36 months. The size of the periapical lesions and previous surgical treatment had no influence on the prognosis. Conclusion: Our results suggest that a combination of Ca(OH)(2) and 1% CHX can be successfully used as intracanal medicament for disinfection in endodontic retreatment cases with periapical lesions.Öğe Evaluation of the clinical success of class I cavities prepared by an Er:YAG laser-2-year follow-up study(Elsevier Taiwan, 2008) Ercan, Ertugrul; Dulgerfil, Coruh Turksel; Nalcaci, Adil; Dalli, Mehmet; Zorba, Yahya Orcun; Ince, BayramThe aim of this study was to evaluate the success of class I occlusal restorations prepared by an Er:YAG laser after 24 months. Sixty-five teeth of 30 patients were included in the study, and an Er:YAG laser emitting at a wavelength of 2.94 mu m was used for the class I cavity preparations with not more than 113 of the mesiodistal width of the occlusal surfaces of each tooth. All cavities were restored with a light-cured composite resin, following a single bond application. After the baseline examination, restorations were reevaluated by the same experienced clinician after 24 months, using modified Ryge criteria. After 2 years, 53 restorations were reviewed in 26 patients. None of the teeth showed signs of secondary caries. Except for 2 teeth subjected to endodontic treatment due to pulpal inflammation, all other restorations were present, and the teeth were vital. Slight marginal discoloration was observed in 5 restorations, having a beta score. With its satisfactory acceptance by patients, class I cavity preparation with an Er:YAG laser would be a useful alternative for other conventional methods, especially for teeth which are to be restored with composite resins. (J Dent Sci, 3(4) : 193-198, 2008)Öğe A FIELD-TRIAL OF TWO RESTORATIVE MATERIALS USED WITH ATRAUMATIC RESTORATIVE TREATMENT IN RURAL TURKEY: 24-MONTH RESULTS(Univ Sao Paulo Fac Odontologia Bauru, 2009) Ercan, Ertugrul; Dulgergil, C. Turksel; Soyman, Muebin; Dalli, Mehmet; Yildirim, IsilObjective: The purpose of this study was to investigate the clinical performance of high-strength glass ionomer cement (HSGIC) and resin-modified glass ionomer (RMGIC) in single and multiple surface carious cavities in the field conditions. Material and Methods: A split-mouth design, including ninety-one fillings placed on contra lateral molar pairs of 37 children, was used in permanent dentition. As filling materials, a HSGIC (Ketac Molar/3M ESPE) and a RMGIC (Vitremer/3M ESPE) were used with the Atraumatic Restorative Treatment (ART). Baseline and 6, 12 and 24-month evaluations of the fillings were made with standard-ART and USPHS criteria by two examiners with kappa values of 0.92 and 0.87 for both criteria. Results: According to the USPHS criteria, the retention rates of RMGIC and HSGIC restorations were 100% and 80.9% for single surface, and 100% and 41.2% for multiple surface restorations after 24 months, respectively. Irrespective of surface number, RMGIC was significantly superior to HSGIC (p=0.004), according to both standard-ART and USPHS criteria. Conclusion: The results indicate that RMGIC may be an alternative restorative technique in comparison to high-strength GIC applications in ART-field-trials. However, further clinical and field trials are needed to support this conclusion.
