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Öğe Analysis of Endodontic Complications Following Fixed Prosthodontic Rehabilitation(Quintessence Publishing Co Inc, 2016) Uzgur, Zeynep; Uzgur, Recep; Colak, Hakan; Ercan, Ertugrul; Dalli, MehmetPurpose: The aim of this study was to determine endodontic treatment needs and types of endodontic disease following fixed prosthodontic treatment 24 hours after tooth preparation, 1 week after tooth preparation, 1 month after placement, and 6 months after placement. Materials and Methods: Study groups consisted of patients who attended a university dental hospital department of prosthodontics for fixed prosthodontic treatment from January 2011 to December 2013. All teeth were clinically and radiographically evaluated according to American Association of Endodontists evaluation criteria before preparation. Metal-ceramic fixed partial dentures were placed for all patients. A total of 1,633 abutment teeth were prepared with 1,100 pontics in 524 patients (214 female and 310 male). Participant age, sex, and tooth number were recorded. Endodontic treatment follow-up was scheduled for 24 hours after tooth preparation, 1 week after preparation, 1 month after placement, and 6 months after placement, and all teeth were evaluated after placement of FPDs according to a modified criteria. Results: 2,733 retainers were placed with 624 FPDs. Of the FPDs, 332 (53%) were placed in the posterior and 196 (31.5%) in the anterior region. The remaining 96 FPDs (15.5%) were placed anteroposterior. The abutment/pontic ratio was 1.44:1. The number of retainers per FPD was 4.37. Of 1,633 abutment teeth, 103 were endodontically treated after placement of FPDs. Most observed endodontic disease was symptomatic irreversible pulpitis. There were statistically significant differences in terms of teeth regions (P < .001). When follow-up times of 24 hours, 1 week, 1 month, and 6 months were evaluated, there was no statistically significant difference among all teeth groups (P > .05). Conclusion: A total of 2,733 retainers on 624 FPDs were evaluated over 6 months, and the mean endodontic treatment need ratio was 6.3%.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 A Cross-Sectional Survey on Reasons for Initial Placement and Replacement of Single Crowns(Dennis Barber Ltd, 2017) Uzgur, Recep; Uzgur, Zeynep; Colak, Hakan; Ercan, Ertugrul; Dalli, Mehmet; Ozcan, MutluThis cross-sectional survey investigated the reasons for placement and replacement of single crowns, the type of materials selected for initial placement and evaluated their longevity. Information was collected over 19 months period using a questionnaire focusing on the principal reasons for the placement and replacement of crowns, selected material type and the age of the crowns at the time of replacement. A total of 842 single crowns were evaluated in 476 patients. Of the 842 crowns, 472 (56%) were initial-placements and 370 (44%) replacements. The main reason for placement of first single crowns was related to endodontic problems (26.5%). Metal-ceramic was indicated significantly more frequent (88.9%; p<0.01) than other materials for the placement and replacement of single crowns. The median age of the replaced crowns was 6 years.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 intracanal medication with calcium hydroxide and 1% chlorhexidine in endodontic retreatment cases with periapical lesions: An in vivo study(Elsevier Singapore Pte Ltd, 2007) Ercan, Ertuğrul; 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, Ertuğrul; Dülgergil, C. Türksel; Soyman, Mübin; Dalli, Mehmet; Yildirim, IşılObjective: 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.Öğe In vitro assessment of the effectiveness of chlorhexidine gel and calcium hydroxide paste with chlorhexidine against Enterococcus faecalis and Candida albicans(2006) Ercan, Ertuğrul; Dalli, Mehmet; Dülgergil, Ç.TürkselObjective: The purpose of this study was to compare the effectiveness of various medicaments, including Ca(OH)2/ 2% chlorhexidine, 2% chlorhexidine gel, and Ca(OH)2 alone, against Enterococcus faecalis and Candid albicans in vitro. Study design: Eighty extracted single-rooted human maxillary teeth were used. After removing the crown, each root was instrumented up to size 50 by using a conventional technique. The root canal was irrigated with ethylenediamine tetra-acetic acid (EDTA) solution to remove smear layer. Then, roots were infected with E faecalis and C albicans. Subsequently, the roots were divided into 4 treatment groups: group 1 was treated with calcium powder hydroxide in distilled water, group 2 was treated with calcium hydroxide powder in 2% chlorhexidine, group 3 was treated with 2% chlorhexidine gel, and group 4 was treated with 0.9% sterile saline serving as negative control. Microbial samples were taken after 7, 15, and 30 days. After incubation, dentine chips were obtained form each root canal and examined microbiologically. The microbiological samples were plated to count colony-forming units in per milligram of dentin. Results: The results showed that the 2% chlorhexidine gel was significantly more effective than calcium hydroxide with 2% chlorhexidine, calcium hydroxide, and control saline solution (P < .05). Conlusion: Under the conditions of this study, 2% chlorhexidine gel is effective in the elimination of E faecalis and C albicans from the root canal system. However, to support this in vitro observation, further in vivo studies are needed. © 2006 Mosby, Inc. All rights reserved.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.Öğe Prevention of maternal bacterial transmission on children's dental-caries-development: 4-year results of a pilot study in a rural-child population(Pergamon-Elsevier Science Ltd, 2007) Ercan, Ertuğrul; Dülgergil, C. Türksel; Yildirim, Isil; Dalli, MehmetAim: Dental caries with its bacterial agent is an infectious disease, and shows a vertical transmission. The control of bacterial transmission of Mutans streptococci (MS) from mother to child has been studied, and its results on their children's caries development, and on their siblings' bacterial levels, have been analysed in a field-trial (for 4 years) in rural area. Material and methods: In the same tribe, 8 mothers and their 11 children (test children [TC]), and then (following years) their 9 siblings (test sibling [TSb]), were followed for 4 years. The study started when the TC group had just started to erupt. Test mothers were subjected to a preventive regime. Examination of caries development as well as determination of plaque levels of MS in TC and TSb were carried out annually and at 6-month intervals. At the end of 4 years, two control groups (control children [CC] and control siblings [CSb]) resembling TC and TSb were selected from the other tribe living in the same village, and bacterial data and caries status were compared to both test groups. Results: Microbial data demonstrated that the test children (p < 0.01) and test siblings (p < 0.05) had significantly low bacterial level in plaque samples. Accordingly, TC had significantly low dmf-t and -s number compared to corresponding control group (p < 0.001 for dmf-t, p < 0.0001 for dmf-s). Conclusion: The preventive regimen was applicable in rural southeastern Anatolia, where an introverted life style with a great tribal system is prevailing, any other preventive measures may have been practical or available, and babies are basically cared by mothers. (C) 2007 Elsevier Ltd. All rights reserved.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.
