Aykol Şahin, Gökçe
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Name Variants
Aykol Şahin, Gökçe
Şahin, G.
Şahin, Gökçe
G. A. SAHiN
G. Aykol Şahin
Sahin, A.
G. A. ŞAHIN
Şahin, A.
Gokce Aykol SAHiN
Şahin, Aykol
G. A. Sahin
Gökçe A. Şahin
Gökçe Aykol Şahin
G. Aykol Sahin
G. A. Şahin
ŞAHIN Gökçe Aykol
G., Aykol Şahin
Gokce A. Sahin
Gokce Aykol Sahin
Sahin, Gokce
G.,Aykol Şahin
Gökçe, Aykol Şahin
Gökçe Aykol ŞAHIN
Sahin, G.
Şahin Gökçe Aykol
Sahin, Aykol
Sahin Gokce Aykol
SAHiN Gokce Aykol
Aykol-Sahin, Gokce
Şahin, G.
Şahin, Gökçe
G. A. SAHiN
G. Aykol Şahin
Sahin, A.
G. A. ŞAHIN
Şahin, A.
Gokce Aykol SAHiN
Şahin, Aykol
G. A. Sahin
Gökçe A. Şahin
Gökçe Aykol Şahin
G. Aykol Sahin
G. A. Şahin
ŞAHIN Gökçe Aykol
G., Aykol Şahin
Gokce A. Sahin
Gokce Aykol Sahin
Sahin, Gokce
G.,Aykol Şahin
Gökçe, Aykol Şahin
Gökçe Aykol ŞAHIN
Sahin, G.
Şahin Gökçe Aykol
Sahin, Aykol
Sahin Gokce Aykol
SAHiN Gokce Aykol
Aykol-Sahin, Gokce
Job Title
Dr.Öğr.Üyesi
Email Address
gokce.aykol@okan.edu.tr
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Scholarly Output
8
Articles
8
Citation Count
0
Supervised Theses
0
8 results
Scholarly Output Search Results
Now showing 1 - 8 of 8
Article Citation Count: 0Effectiveness of different types of toothbrushes on periodontal health in orthodontic patients with gingivitis: A randomized controlled study(Bmc, 2024) Aykol-Sahin, Gokce; Ay-Kocabas, Busranur; Mert, Banu; Usta, Hande; Ortodonti / Orthodontics; Periodontoloji / PeriodontologyBackground The aim of the study is to evaluate the effectiveness of different toothbrushes in reducing gingival inflammation and dental biofilm removal in gingivitis patients with fixed orthodontic appliances. Methods Following baseline clinical assessments, including the Turesky modification of the Quigley-Hein plaque index (TQHI), gingival index (GI), bleeding on probing (BOP), and probing pocket depth (PPD), all patients received nonsurgical periodontal therapy. Patients were then randomly assigned to one of three groups: conventional toothbrush (C-TB), orthodontic toothbrush (O-TB), or single-tufted toothbrush (ST-TB). Each group received tailored oral hygiene instructions based on their assigned toothbrush type. Clinical assessments were repeated and recorded in the first week, sixth week, and third month. Results Thirty-six patients with a mean age of 23.14 +/- 3.86 (18-32 years) participated in the study. All groups with twelve patients each demonstrated significant improvements in clinical parameters compared to baseline. In the sixth week, the O-TB and ST-TB groups showed significantly greater improvements in TQHI and BOP scores compared to the C-TB group (p < 0.05). By the third month, the ST-TB group maintained significantly lower TQHI and BOP scores, while the O-TB group's scores became similar to those of the C-TB group. ST-TB and C-TB groups had significantly lower GI scores than the O-TB group in all time points. Although the effectiveness of ST-TB was significantly higher than that of other toothbrushes, all toothbrushes demonstrated lower efficacy in the posterior region. Conclusions The ST-TB was shown to be more effective in reducing gingival inflammation over three months, while it demonstrated similar efficacy to the O-TB in dental biofilm removal. Further research is necessary to substantiate these findings and to demonstrate the efficacy of this approach in promoting periodontal tissue health in patients with fixed orthodontic appliances.Article Citation Count: 6Evaluation of Surface Change and Roughness in Implants Lost Due to Peri-Implantitis Using Erbium Laser and Various Methods: An In Vitro Study(Mdpi, 2021) Secgin-Atar, Aslihan; Aykol-Sahin, Gokce; Kocak-Oztug, Necla Asli; Yalcin, Funda; Gokbuget, Aslan; Baser, Ulku; Periodontoloji / PeriodontologyThe aim of our study was to obtain similar surface properties and elemental composition to virgin implants after debridement of contaminated titanium implant surfaces covered with debris. Erbium-doped:yttrium, aluminum, and garnet (Er:YAG) laser, erbium, chromium-doped:yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser, curette, and ultrasonic device were applied to contaminated implant surfaces. Scanning electron microscopy (SEM) images were taken, the elemental profile of the surfaces was evaluated with energy dispersive X-ray spectroscopy (EDX), and the surface roughness was analyzed with profilometry. Twenty-eight failed implants and two virgin implants as control were included in the study. The groups were designed accordingly; titanium curette group, ultrasonic scaler with polyetheretherketone (PEEK) tip, Er: YAG very short pulse laser group (100 mu s, 120 mJ/pulse 10 Hz), Er: YAG short-pulse laser group (300 mu s, 120 mJ/pulse, 10 Hz), Er: YAG long-pulse laser group (600 mu s, 120 mJ/pulse, 10 Hz), Er, Cr: YSGG1 laser group (1 W 10 Hz), Er, Cr: YSGG2 laser group (1.5 W, 30 Hz). In each group, four failed implants were debrided for 120 s. When SEM images and EDX findings and profilometry results were evaluated together, Er: YAG long pulse and ultrasonic groups were found to be the most effective for debridement. Furthermore, the two interventions have shown the closest topography of the sandblasted, large grit, acid-etched implant surface (SLA) as seen on virgin implants.Article Citation Count: 0Efficiency of oral keratinized gingiva detection and measurement based on convolutional neural network(Wiley, 2024) Aykol-Sahin, Gokce; Yucel, Ozgun; Eraydin, Nihal; Keles, Gonca Cayir; Unlu, Umran; Baser, Ulku; Periodontoloji / PeriodontologyBackground: With recent advances in artificial intelligence, the use of this technology has begun to facilitate comprehensive tissue evaluation and planning of interventions. This study aimed to assess different convolutional neural networks (CNN) in deep learning algorithms to detect keratinized gingiva based on intraoral photos and evaluate the ability of networks to measure keratinized gingiva width. Methods: Six hundred of 1200 photographs taken before and after applying a disclosing agent were used to compare the neural networks in segmenting the keratinized gingiva. Segmentation performances of networks were evaluated using accuracy, intersection over union, and F1 score. Keratinized gingiva width from a reference point was measured from ground truth images and compared with the measurements of clinicians and the DeepLab image that was generated from the ResNet50 model. The effect of measurement operators, phenotype, and jaw on differences in measurements was evaluated by three-factor mixed-design analysis of variance (ANOVA). Results: Among the compared networks, ResNet50 distinguished keratinized gingiva at the highest accuracy rate of 91.4%. The measurements between deep learning and clinicians were in excellent agreement according to jaw and phenotype. When analyzing the influence of the measurement operators, phenotype, and jaw on the measurements performed according to the ground truth, there were statistically significant differences in measurement operators and jaw (p < 0.05). Conclusions: Automated keratinized gingiva segmentation with the ResNet50 model might be a feasible method for assisting professionals. The measurement results promise a potentially high performance of the model as it requires less time and experience.Article Citation Count: 5Influence of the Localization of Frontal Bone Defects on Primary Stability Values of 2 Different Implant Designs: An In Vitro Study(Lippincott Williams & Wilkins, 2017) Mercan, Ugur; Bilhan, Hakan; Meral, Deniz Gokce; Kazokoglu, Sehnaz; Aykol-Sahin, Gokce; Geckili, Onur; Periodontoloji / Periodontology; Ağız,Diş ve Çene Cerrahisi / Oral, Dental and Maxillofacial SurgeryObjectives: The aim of this study was to determine the influence of different frontal bone defect localizations on primary stability values of 2 different implant designs. Materials and Methods: Eight cow rib segments were prepared before implant installation, as 2 segments with coronal, 2 with middle, and 2 with apical defects and 2 with control. Thirty-two cylindrical and 32 tapered implants were placed in the remaining 4 segments. Implant stability measurements were performed using electronic percussive testing and resonance frequency analysis. Results: No significance was detected between the stability values of the 2 implant designs except the implant stability quotient (ISQ) of control groups. The tapered implants control group showed significantly higher lateral ISQs compared with cylindrical implants (P = 0.033). For both implant types, stability values were significantly lower in coronal defects (P < 0.01). No significant differences were detected in other defect types. Conclusion: Within the limitations of this study, it may be concluded that coronal defects may influence primary stability negatively, compared with middle and apical defects. Although statistically not significant, coronal defects caused lower primary stability values with the tapered design compared with parallel design.Article Citation Count: 0Furcation area and root proximity of molars as a risk indicator of periodontitis: a cone-beam computed tomography-based study(Springer, 2023) Aykol-Sahin, Gokce; Arsan, Belde; Periodontoloji / PeriodontologyObjectives This study assessed the root proximity in molars and the furcation area (FA) in the first root separation point (RSP) using cone-beam computed tomography (CBCT) and evaluated the association between the furcation area of molars and periodontal status of the patients. Methods A total of 264 molar teeth in 66 participants were included in the study. The control group consisted of 110 molar teeth of participants, and 154 molar teeth were included in periodontitis group, which consisted of only stage II and III periodontitis patients. FA, RSP, and root proximities were measured in axial slices, and bone resorption rates were measured in sagittal slices. Results Both maxillary and mandibular molar groups had significantly less FA in periodontitis group than in controls (p < 0.005), and there were significant relationships between the degree of bone resorption in molars and FA and furcation grades (p < 0.001). According to regression analysis, the risk of periodontitis increased by 1.011 times as total FA decreased (p < 0.001), and periodontitis risk of maxillary molar was 1.693 times higher than mandibular molars but not found to be statistically significant (p = 0.152). When assessing the root proximity between molar teeth, maxillary molars showed significantly higher root proximity in CEJs than mandibular molars in both periodontitis and control groups (p < 0.05). Conclusions The results indicate that the association between FA and the degree of bone resorption and root proximity of maxillary molars might be considered as a risk indicator for bone resorption in molars and might play a role during disease progression.Article Citation Count: 2Impact of Smoking on Neutrophil Enzyme Levels in Gingivitis: A Case-Control Study(Mdpi, 2021) Omer-Cihangir, Rumeysa; Baser, Ulku; Kucukgergin, Canan; Aykol-Sahin, Gokce; Huck, Olivier; Yalcin, Funda; Periodontoloji / PeriodontologyBackground: The determination of the impact of risk factors such as smoking in periodontal disease development is of importance to better characterize the disease. However, its impact on host response remains unclear. This study aimed to evaluate the effects of tobacco smoking on GCF levels of neutrophil enzymes (myeloperoxidase (MPO), beta-glucuronidase (BGD), neutrophil elastase (NE) and periodontal parameters in healthy young adults with dental plaque biofilm-induced gingivitis. Methods: The study population consisted of 60 systemically healthy young adults (39 smokers (Sm) and 21 non-smokers (n-Sm)) diagnosed with plaque-induced gingivitis. The periodontal examination consisted of a plaque index (PI); gingival index (GI); probing depth (PD); bleeding on probing (BoP), and clinical attachment level (CAL). GCF MPO, BGD, and NE levels were determined by means of an enzyme-linked immunosorbent assay (ELISA). Results: PI, GI, and BoP were significantly increased in the Sm group (p < 0.05). PD and CAL showed no significant difference between Sm and n-Sm groups (p > 0.05). In GCF, MPO, BGD, and NE levels were significantly increased in Sm group (p < 0.05). NE levels showed a significant correlation with GI and BoP (p < 0.05 for both). Moreover, a positive correlation between BGD and NE levels (p < 0.05) was measured. Conclusions: It may be concluded that, even in young patients, tobacco consumption affects the host's immune response related to gingival inflammation. It is, therefore, mandatory to inform young patients about the risk related to tobacco consumption for their gingival health.Article Citation Count: 2Association between root taper and root proximity of single-rooted teeth with periodontitis: a cone-beam computed tomography based study(Springer, 2022) Aykol-Sahin, Gokce; Arsan, Belde; Altan-Koran, Serpil Melek; Huck, Olivier; Baser, Ulku; Periodontoloji / PeriodontologyThis study aimed to determine the association between the root taper and proximity of single-rooted teeth with periodontitis using cone-beam computed tomography (CBCT). CBCT images of 362 single-rooted teeth from 37 patients were evaluated. This case-control study analyzed 17 participants with stage II and III periodontitis, (n = 161 teeth, periodontitis group) and 20 participants with healthy periodontium (n = 201 teeth, control group). Multiplanar reconstructions were used for proximity measurements, and cross-sectional images for calculating the angle of the root tapers. Root proximity, root length, and root taper were measured. Multivariate binary logistic regression analysis was used to determine association with periodontitis. In the periodontitis group, the upper lateral root-taper was 18.33 degrees +/- 3.25 degrees and was significantly higher when compared to the control group (p = 0.001). The root taper of the lateral incisor was associated with the diagnosis of periodontitis (p = 0.01) with an odds ratio of 1.541 according to regression analysis. Root length was also identified as a potential protective parameter. The risk of being diagnosed with periodontitis decreases when root length increases by 0.785 times (p = 0.043). Upper canines in the periodontitis group presented shorter root lengths (p = 0.039) and higher root tapers (p = 0.01). Also, mandibular canines were closer form adjacent teeth in the periodontitis group (p = 0.042). This study indicated that short-root and increased root-taper at specific teeth could be considered as risk indicators for periodontitis.Article Citation Count: 21Role of Low-Level Laser Therapy as an Adjunct to Initial Periodontal Treatment in Type 2 Diabetic Patients: A Split-Mouth, Randomized, Controlled Clinical Trial(Mary Ann Liebert, inc, 2017) Demirturk-Gocgun, Oya; Baser, Ulku; Aykol-Sahin, Gokce; Dinccag, Nevin; Issever, Halim; Yalcin, Funda; Periodontoloji / PeriodontologyObjective: In this split-mouth clinical trial, we evaluated the clinical benefits of low-level laser therapy (LLLT) as an adjunct to nonsurgical periodontal treatment in patients with type 2 diabetes mellitus (DM). Background data: The impaired wound healing seen in diabetic patients may affect the results of periodontal treatment and may require an additional approach. Materials and methods: In total, 22 chronic periodontitis patients with type 2 DM were included. Applying a split-mouth design, two quadrants were treated with only scaling and root planing (SRP) as the control and those in the other two were treated with SRP + LLLT as the test sites in each patient. An 808nm GaAlAs diode laser was performed in the test sites at the energy density of 4.46 J/cm(2) on days 1, 2, and 7 after SRP. Plaque index (PI), probing depth (PD), bleeding on probing (BOP), and clinical attachment level were measured at baseline and again at 1 and 3 months after treatment. Deep periodontal pockets (PD >= 4mm) were evaluated separately. Results: Test sites showed significant improvement in PI and BOP in deep pockets at the 1-month follow-up period (p < 0.001 and < 0.001, respectively), whereas no difference was found between the control and the test sites in other periodontal parameters. Conclusions: LLLT during periodontal treatment offered minimal short-term additional benefit in deep pocket healing in patients with type 2 DM.
