Person: DOĞAN, BAŞAK
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DOĞAN
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BAŞAK
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Publication Metadata only Effect of topically applied hyaluronic acid on pain and palatal epithelial wound healing: An examiner-masked, randomized, controlled clinical trial(AMER ACAD PERIODONTOLOGY, 2018) DOĞAN, BAŞAK; Yildirim, Selin; Ozener, Hafize Ozturk; Dogan, Basak; Kuru, BaharBackground: This study aims to evaluate the effects of two different concentrations of topical hyaluronic acid (HA) on postoperative patient discomfort and wound healing of palatal donor sites after free gingival graft (FGG) surgery. Methods: Thirty-six patients requiring FGG were randomly assigned into three groups in an examiner-masked, randomized, controlled clinical trial. After harvesting palatal grafts, 0.2% and 0.8% HA gels were used in test groups 1 and 2, respectively. Gels were applied on donor sites and protected with periodontal dressing in the test groups, whereas the wound was covered only with periodontal dressing in the control group. On days 3, 7, 14, and 21, pain and burning sensation were recorded using a visual analog scale (VAS) as well as other parameters such as complete epithelization (CE) and color match on days 3, 7, 14, 21, and 42. Results: Test groups experienced less pain than the control group on days 3 and 7 (P < 0.001 and P < 0.001, respectively). Mean VAS score for burning sensation was higher in the control group on day 3 compared with test groups 1 and 2 (P = 0.03 and P = 0.02, respectively). CE in all patients was achieved on day 21 in both test groups, whereas it was achieved on day 42 in the control group. The test groups showed higher color match scores than the control group on days 21 (P < 0.001 and P < 0.001, respectively) and 42 (P = 0.004 and P = 0.002, respectively). Conclusion: Topical application of HA exhibits positive impact on postoperative pain and burning sensation, and accelerates palatal wound healing in terms of epithelization and color match.Publication Open Access Microbial composition and non-surgical periodontal treatment of aggressive periodontitis: Two case reports(2019) DOĞAN, BAŞAK; Dilek MAMAKLIOĞLU;Bahar EREN KURU;Maribasappa KARCHED;BAŞAK DOĞANThe objective of this case report was to characterize the subgingival microbiological profiles of two patients with generalized aggressive periodontitis (GAgP) and to evaluatethe clinical outcomes of non-surgical periodontal treatment(NSPT) over a 6-months period. Pooled subgingival samplesof two patients who referred to our clinic and diagnosed withGAgP were collected and analyzed for the presence of 300species/phlotypes using Human Oral Microbe IdentificationMicroarray analysis. NSPT was performed within 3-week period. Clinical parameters were measured at baseline, 3 and6 months after NSPT. Recall visits were performed every 2weeks during the first 3 months and every 4 weeks up to 6months. All samples harboured a total of 61 species and 32species were common in both patients. First patient had 17and the other had 12 distinct species. High levels of Filifactor alocis, Porpyromonas gingivalis, Campylobacter concisusand rectus, Fusobacterium nucleatum and Desulfobulbusspp. were detected in both patients while Aggregatibacter actinomycetemcomitans was found in none of them. Six monthsafter NSPT, all clinical parameters were improved in two A. actinomycetemcomitans-negative GAgP patients. In addition towell-recognized periodontal pathogens the presence of highlevels of Filifactor alocis and Desulfobulbus spp. seem to beassociated with GAgP.Publication Metadata only The relationship between vitamin D receptor gene polymorphisms and periodontitis in turkish individuals with type 2 diabetes mellitus(2022-07-01) DOĞAN, BAŞAK; MEGA TİBER, PINAR; Yildiz A. S., Ustundag F. D., Tiber P., Dogan B.© 2022 Wolters Kluwer Medknow Publications. All rights reserved.Background and Aim: Vitamin D receptor (VDR) gene polymorphisms have been implicated in the pathogenesis of many diseases, such as periodontitis and diabetes mellitus (DM). The present study aimed to evaluate the distributions of VDR polymorphisms in diabetic individuals with healthy periodontium (DMH), diabetic individuals with periodontitis (DMP), nondiabetic individuals with healthy periodontium (H), and nondiabetic individuals with periodontitis (P). Material and Methods: A total of 200 individuals (DMH = 40, DMP = 60, H = 40, and P = 60) were recruited. All clinical periodontal parameters, demographical, and biochemical variables were recorded. Blood samples were collected, and genomic DNA was isolated by Purelink® Genomic DNA Mini Kit. Genotyping of VDR polymorphisms ApaI, BsmI, FokI, and TaqI were determined by real-time polymerase chain reaction (PCR) using allele-specific probes. Results: The distribution of the BsmI variant showed differences between DMH and H groups (P = 0.034). In addition, carrying the GG genotype (OR = 0.317; 95% CI = 0.126-0.797; P = 0.013) and the G allele (OR = 2.373; 95% CI = 1.203-4.681; P = 0.012) increased the risk of type 2 DM. Moreover, it was determined that the frequency of CC genotype of FokI variant was higher in DMP compared to DMH (P = 0.046). It was determined that having the CC genotype (OR = 2.706; 95% CI = 1.185-6.176; P = 0.017) and the C allele (OR = 1.917; 95% CI = 0.995-3.694; P = 0.049) increased the risk of periodontitis among diabetic individuals. No differences were detected among groups in the genotype and allele distributions of ApaI and TaqI variants (P > 0.05). Conclusions: The present study showed that the BsmI variant was a risk factor for DM among periodontally healthy individuals and the FokI variant for periodontitis among diabetic individuals.Publication Metadata only Effect of non-surgical periodontal treatmenton salivary IL-13 levels in periodontitis with andwithout type 2 diabetes(2022-06-10) YILDIRIM, HATİCE SELİN; İYİGÜN, SEZGİ; DOĞAN, BAŞAK; YILDIRIM H. S., KALKAN Y., İYİGÜN S., DOĞAN B.Background & Aim: Interleukin (IL)-13 is an anti-inflammatory and fibrogenic cytokine activated by T helper 2 cells. It has been shown that IL-13 inhibits pro-inflammatory cytokine synthesis and osteoclastogenesis. The aim of the study was to determine the effect of non-surgical periodontal treatment (NSPT) on salivary IL-13 levels in periodontitis patients with and without type 2 diabetes mellitus (T2DM). Methods: A total of 48 subjects, 12 systemically and periodontally healthy (H), 12 periodontitis with well controlled T2DM, 12 periodontitis with poorly controlled T2DM and 12 systemically healthy periodontitis, were recruited for the study. All periodontitis patients belonged to either Stage III or IV periodontitis. At baseline, all clinical parameters including plaque index, gingival index, bleeding on probing, probing depth and clinical attachment loss were recorded, and the saliva samples were collected from all subjects, at 3 months following the NSPT only from periodontitis groups. Salivary IL-13 levels were analysed by enzyme-linked immunosorbent assay. This study was supported by the grant from Marmara University Scientific Research Projects Coordination Unit #SAG-A-080519-0172. Results: All clinical parameters were higher in all periodontitis groups than the healthy subjects at baseline (p < 0.05) and improved 3 months after NSPT in all periodontitis groups (p < 0.05). At baseline, salivary IL-13 levels were lower in all periodontitis groups compared to H group (p < 0.05) but were similar among 3 periodontitis groups (p > 0.05). At 3 months following NSPT IL-13 levels were increased in all 3 periodontitis groups compared to baseline (p < 0.05). Conclusions: This study has revealed that low levels of salivary IL-13 are associated with periodontitis not T2DM. IL-13 may be used as a biomarker for both the diagnosis and treatment of periodontitis.Publication Metadata only Yaşlı Bireylerde Cerrahi Olmayan Periodontal Tedavi Yaklaşımı(Türkiye Klinikleri Yayınevi, 2022-12-01) ÖZTÜRK ÖZENER, HAFİZE; AĞRALI, ÖMER BİRKAN; DOĞAN, BAŞAK; Öztürk Özener H., Ağralı Ö. B., Doğan B.Publication Metadata only Yaşlı bireylerde cerrahi olmayan periodontal tedavi yaklaşımı(Türkiye Klinikleri, 2022-01-01) ÖZTÜRK ÖZENER, HAFİZE; AĞRALI, ÖMER BİRKAN; DOĞAN, BAŞAK; ÖZTÜRK H., AĞRALI Ö. B., DOĞAN B.Publication Open Access Multidisciplinary Treatment Approach in a Patient with History of Nasopharyngeal Carcinoma(2014) DOĞAN, BAŞAK; Yavuz, Atacan; Ağralı, Omer Birkan; Calışkan, Zeynep Lale; Türkaydın, Dilek; Sertgöz, Atilla; Kuru, Bahar; Doğan, BaşakRadiotherapy in NPC patients has side effects on the dentition, which affects quality of life dramatically. This case report presents multidisciplinary dental treatment approach in a 17-year-old male patient with a history of nasopharyngeal carcinoma (NPC), which was treated with chemotherapy and radiotherapy. The adolescent patient applied to dental hospital 4 years after the radiotherapy with aesthetic and functional problems on dentition affecting psychological, social, and physical aspects of his life. The dentition of the patient demonstrated the severe destruction as a devastating side effect of radiotherapy. With a successful multidisciplinary approach, our patient's aesthetics, function, and self-confidence were obtained. Well-established procedures, which include preventative care and maintenance, can reduce the duration and expenses of the treatment and help in challenging the life-long complications of radiotherapy.Publication Open Access Different treatment approaches for the localized gingival overgrowths: Case series(2018-04) DOĞAN, BAŞAK; Ozener, Hafize Ozturk; Kundak, Kubra; Sipahi, Nimet Gul; Yetis, Ece; Dogan, BasakABSTRACT Localized gingival overgrowths belong to a common group of lesions designated as focal reactive overgrowths. They occur in response to chronic, low‑grade irritation caused by plaque or any other irritant. They have multifactorial etiopathology but exhibit similar clinical features with slight variations in patient complaints. Success of the lesions’ management depends on formation of healthy contours of the surgical area after excision of lesion and absence of a recurrence. The purpose of case series is to present 6 different cases of localized gingival overgrowths and their management with the following techniques: nonsurgical periodontal treatment, gingivectomy, flap surgery, free gingival graft, gingival unit, and connective tissue graft.Publication Open Access Specified Species in Gingival Crevicular Fluid Predict Bacterial Diversity(PUBLIC LIBRARY SCIENCE, 2010-10-25) DOĞAN, BAŞAK; Asikainen, Sirkka; Dogan, Basak; Turgut, Zeynep; Paster, Bruce J.; Bodur, Aysen; Oscarsson, JanBackground: Analysis of gingival crevicular fluid (GCF) samples may give information of unattached (planktonic) subgingival bacteria. Our study represents the first one targeting the identity of bacteria in GCF. Methodology/Principal Findings: We determined bacterial species diversity in GCF samples of a group of periodontitis patients and delineated contributing bacterial and host-associated factors. Subgingival paper point (PP) samples from the same sites were taken for comparison. After DNA extraction, 16S rRNA genes were PCR amplified and DNA-DNA hybridization was performed using a microarray for over 300 bacterial species or groups. Altogether 133 species from 41 genera and 8 phyla were detected with 9 to 62 and 18 to 64 species in GCF and PP samples, respectively, per patient. Projection to latent structures by means of partial least squares (PLS) was applied to the multivariate data analysis. PLS regression analysis showed that species of genera including Campylobacter, Selenomonas, Porphyromonas, Catonella, Tannerella, Dialister, Peptostreptococcus, Streptococcus and Eubacterium had significant positive correlations and the number of teeth with low-grade attachment loss a significant negative correlation to species diversity in GCF samples. OPLS/O2PLS discriminant analysis revealed significant positive correlations to GCF sample group membership for species of genera Campylobacter, Leptotrichia, Prevotella, Dialister, Tannerella, Haemophilus, Fusobacterium, Eubacterium, and Actinomyces. Conclusions/Significance: Among a variety of detected species those traditionally classified as Gram-negative anaerobes growing in mature subgingival biofilms were the main predictors for species diversity in GCF samples as well as responsible for distinguishing GCF samples from PP samples. GCF bacteria may provide new prospects for studying dynamic properties of subgingival biofilms.Publication Open Access Effect of non-surgical periodontal therapy on salivary melatonin levels(2022-04-01) YARAT, AYŞEN; DOĞAN, BAŞAK; KURU, LEYLA; KUNDAK K., YARAT A., DOĞAN B., KURU L.Objective: Melatonin, a hormone secreted predominantly by pineal gland in a circadian manner, has antioxidant and anti-inflammatory effects. The current research is conducted to explore the influence of non-surgical periodontal therapy (NSPT) on levels of salivary melatonin in subjects with gingivitis and periodontitis. Methods: Sixty systemically healthy participants were included in this study; the groups are as follows: gingivitis (G), chronic periodontitis (CP), generalized aggressive periodontitis (GAP) and periodontally healthy (H). NSPT was applied to G group patients for 2 sessions, to CP and GAP group patients for 4 sessions. Plaque and gingival indices, probing depth (PD), bleeding on probing (BOP), and clinical attachment level (CAL) were documented at baseline and 3 months post – treatment and early morning salivary samples were collected. ELISA was used to detect melatonin levels in saliva. Pittsburgh Sleep Quality Index (PSQI) questionnaire was performed to evaluate of sleep quality of patients. Results: At baseline, significant difference in gingival index, PD, BOP and CAL values was detected among all groups (p<0.05). Following NSPT, clinical measurements improved in G, CP, and GAP groups significantly (p<0.05). While salivary melatonin concentration of all groups was similar at baseline (p>0.05), a significant elevation in the level of salivary melatonin was found only in the G group after NSPT (p<0.05). PSQI scores differed significantly among groups (p<0.05). Conclusion: The salivary melatonin levels in the presence of gingivitis and periodontitis varied at baseline and elevated following NSPT parallel to the improvement in clinical parameters.
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