Browsing by Author "Talmac, Ayse Gul Oner"

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Assessing Oral Cancer Awareness Among Dental Students in Van Province, Turkey
(Marmara Univ, inst Health Sciences, 2024) Talmac, Ayse Gul Oner; Keser, Gaye; Pekiner, Filiz Namdar; Fahrzadeh, Nihal
Objective: The aim of this study was to assess and compare oral cancer awareness among 3rd year and 5th year undergraduate dental students in Faculty of Dentistry, Van Y & uuml;z & uuml;nc & uuml; Y & imath;l University. Method: A validated questionnaire testing oral cancer awareness was distributed to third and fifth year dental students at Faculty of Dentistry, Van Y & uuml;z & uuml;nc & uuml; Y & imath;l University. A total of 140 students participated in this survey. Knowledge of oral cancer risk factors and diagnostic procedures, dental students' attitudes towards oral cancers, management practices related to oral cancer and sources of oral cancer information were evaluated using 25 questions. The level of significance was set at p<.05. Results: Among the 140 participating dental students, there were 70 (50.%) third-year and 70 (50%) fifth-year students. The responses of 3rd grade students were significantly lower than 5th grade students in evaluating tobacco use, chewing maras grass and primary oral lesions as risk factors. The rate of 3rd grade students identifying leukoplakia and erythroplakia as the two lesions with the highest susceptibility to carcinogenesis (54.5%) was statistically significantly lower than that of 5th grade students (87.0%). The rate of 3rd grade students (35.9%) identifying squamous cell carcinoma as the most common form of oral cancer was statistically significantly lower than that of 5th grade students (84.1%). Conclusion: This study emphasized the importance of improved training methods for dentistry in oral cancer detection and prevention. As the oral cancer expertise of graduating dental students advances, so does the number of dentists who are informed and competent in delivering proper oral cancer therapy to their patients. In this study, 5th-grade students were shown to be more aware of oral cancer than 3rd-grade students.
Comparison of the Accuracy of Different Cone Beam Computed Tomography Systems in Measuring the Volume of External Root Resorption
(Istanbul Univ Press, Istanbul Univ Rectorate, 2025) Talmac, Ayse Gul Oner; Koc, Alaettin
Purpose The aim of this study is to compare the accuracy of root resorption volume measurements among three cone-beam computed tomography (CBCT) devices using various imaging parameters. Materials and Methods A total of 42 external root resorption (ERR) defects were mechanically created on the buccal and palatinal surfaces of the roots of seven extracted human teeth. Volume measurements of the defects were performed using three CBCT devices and six different imaging protocols. CBCT measurements were then compared with those calculated from micro-computed tomography (micro-CT) images. Results The mean absolute error values indicated that the rate of measurement accuracies from best to worst was obtained with KaVo 3D eXam (0.125 mm voxel, 0.2 mm voxel, respectively), Orthophos XG 3D (0.1 mm voxel, 0.16 mm voxel, respectively), and Rainbow CT (0.2 mm voxel, 0.3 mm voxel, respectively). No statistically significant difference was found between any of the CBCT measurements in comparison to the micro-CT evaluations. Conclusion Although external root resorption is a small object to evaluate using CBCT, larger voxel sizes (e.g., 0.3 mm) of CBCT systems can be employed during scanning without compromising image quality.
The Current Overview of the Devices of Temporary Anchorage Placed on the Palatal Bone: Cbct Study
(Springer, 2024) Kotan, Seda; Koc, Alaettin; Talmac, Ayse Gul Oner
Temporary anchorage devices (TADs) are frequently applied to different anatomic areas with different protocols to increase skeletal effects and anchorage in orthodontic treatment planning. It has been reported in many literatures that primary stability for orthodontic TADs is significant for long-term survival rate. For this reason, different areas of the palatal region, which has many indications, have been widely used in the studies. In this evaluation where bone quality and thickness are important, density, bone thickness, and fractal dimension (FD) on cone beam computed tomography (CBCT) will provide more predictable clinical results. The aim of this study was to evaluate bone thickness, density, and FD in the palatal region of the first, and second premolars, and first molars. There was a remarkable difference (p < 0.05) between the parameters of FD, thickness and density of bone in the identified areas in the palatal region. In terms of thickness and FD, the 1st premolar region had significantly higher values than the other regions (p < 0.05). In terms of density, the values in the right 1st molar and right 1st premolar regions were significantly higher (p < 0.05). The 1st premolar region is an ideal site for placement of palatal TADs. CBCT-assisted preliminary evaluation of FD value, bone density, and thickness may increase clinical success when selecting the location of TADs to be applied to the palatal bone.
Determination of Il-17, Bcl-3 and Iκbζ Expression Levels in the Gingival Crevicular Fluid of Psoriasis Patients
(Springer, 2025) Talmac, Ayse Gul Oner; Koc, Alaettin; Kavut, Busra Sumeyye
The purpose of this study was to determine the levels of IL-17, Bcl-3 and I kappa B zeta gene expression in the gingival crevicular fluid (GCF) of psoriatic and healthy individuals and to compare the clinical periodontal parameters in the patient and control groups. A total of 10 psoriasis patients and 2 healthy patients in the control group were included in the analysis for IL-17, Bcl-3, and I kappa B zeta gene expression in the GCF. Periodontal health, gingival index, plaque index, and mobility (using a periotest device) levels were compared between the groups. While considering the down-expressed patients, the expression level of the Bcl-3 gene showed the most variability among the genes studied in psoriasis disease. IL-17 gene expression levels were significantly higher and up-regulated in all patients compared to the control group. In addition, when comparing IL-17 with Bcl-3, IL-17 gene expression was notably high in all patients except patients 4, 9 and 10. The highest expression levels of the I kappa B zeta gene were observed in the patient sample, except for patients 7 and 8. While plaque index, gingival index, and pocket depth parameters were higher in the psoriasis group, there was no significant difference between the two groups (p = 0.257, p = 0.390, p = 0.240, respectively). In the periotest (mobility) parameter, while the mean value was higher in the psoriasis group significantly (p = 0.030), clinically mean values of two groups were in the same grade according to Miller mobility index. The I kappa B zeta gene showed notable high expression levels in psoriasis patients. It was concluded that psoriasis may be associated with periodontitis.
Effects of Thyme on Halitosis in Gingivitis Patients: Can Thyme Mouthwash Prevent Halitosis-A Randomized Trial
(Wiley, 2023) Altindal, Dicle; Deveci, Kubra Ceran; Talmac, Ayse Gul Oner; Talmac, Ahmet Cemil; Calisir, Metin
ObjectivesBad breath is a condition that negatively affects people's social interactions and quality of life. The aim of this study was to evaluate the effect of thyme mouthwash on intraoral halitosis, gingival index (GI) and plaque index (PI) in patients with gingivitis. MethodsIn this retrospective study, 60 gingivitis patients (30 women/30 men) received initial periodontal treatment followed by oral hygiene instructions (OHI) and then were divided into four groups: The control group (C) received only OHI, while chlorhexidine (CHX) mouthwash was prescribed to the CHX group, Zinc acetate and CHX diacetate mouthwash was prescribed to the zinc acetate and CHX diacetate (ZnA) group, and the thyme (T) group was instructed to use thyme mouthwash. GI, PI and volatile sulfur compound (VSC) values were recorded at baseline and at the first week of treatment. ResultsThe initial values of the recorded parameters did not differ significantly between the groups. In all groups, VSCs, GI and PI decreased after treatment (p = 0.001). There was no significant difference between the PI values of the groups after treatment (p = 0.188). On the contrary, the GI and VSC values after treatment were significantly different between the groups (p = 0.001). GI values were highest in the control group and lowest in the CHX group. In terms of VSCs, a significant difference was found between groups T and C, and between groups T and ZnA (p = 0.001). ConclusionThis study showed that the use of thyme mouthwash after periodontal treatment was effective in improving bad breath and gingivitis in gingivitis patients.
Sufficiency of Residual Alveolar Bone in Terms of Regions, Age and Gender in Patients Who Underwent Cbct Evaluation
(Kerman Univ Medical Sciences, 2023) Orhan, Zeynep Dilan; Cigerim, Levent; Talmac, Ayse Gul Oner; Mizrak, Yusuf Rodi; Cigerim, Saadet Cinarsoy; Kahraman, Nazli Fiilal
Background: Alveolar bone resorption may complicate dental implantation of the edentulous area. The quantity of residual bone depends on the region, and it is uncertain which region may present more difficulties before implantation. In this study, the alveolar bones of patients who had cone beam computed tomography (CBCT) before dental implantation were examined, and residual bone was evaluated based on age, gender, and the location of the missing tooth. Methods: In this observational study, the patients with CBCT were divided into two age groups: 18 to 35 and 36 and older. Also, the edentulous regions were divided into incisor, premolar, and molar regions. Radiographic measurements were performed with a cross-sectional aspect in the single-tooth deficiency regions of the patients; bone height and width measurements were made. Results: This study included 164 CBCT scans from individuals (99 females and 65 males). There was no statistically significant difference between the bone heights and between bone widths at the 1st, 3rd, 5th, and 7th mm according to age or gender (P > 0.05). Bone height in the incisor tooth region (ITR) and bone width at the 1st, 3rd, 5th, and 7th mm in the molar tooth region (MTR) were significantly larger (P < 0.01). Conclusion: This study revealed that the bone width at the 1st mm of the ITR was insufficient for dental implant placement and that horizontal bone augmentation was needed.
Variation of Mandibular Canal Branching Related To Anatomical Regions in Mandible: a Radiographic Study Without Contrast
(W B Saunders Co-elsevier inc, 2022) Koc, Alaettin; Talmac, Ayse Gul Oner; Keskin, Siddik
Purpose: Screening mandibular canal branches and awareness of these possible canal branches is vital for patient safety and surgical success. The aim of this study was to evaluate the prevalence and localization of mandibular canal branching (MCB).Methods: This is an institutional and retrospective cohort study of patients who presented for evalua-tion of cone beam computed tomography (CBCT) between 2019 and 2020. The prevalence of MCB and the related foramina was estimated according to anatomical regions. Predictor variables were gender, age, anatomical region, and side of branches. Outcome variable of the study was MCB. Thus, multiple cor-respondence analysis was performed to determine the relationships between the categories of the vari-ables, as well as between variables.Results: CBCT images were obtained from 180 patients (n = 360 hemimandible; 90 males, 90 females). MCB was observed in 130 (72.2%) of 180 patients (mean age = 38.2 +/- 11.8 years). MCB was observed in 63 (48.5%) males and 67 (51.5%) females, and the prevalence of MCB did not differ significantly according to gender (P = .618). MCB was mostly observed in the molar region (69 branches, 34.3%). Foramina were detected in 60 of 248 branches (24.19%) and were mostly observed in the retromolar region (28 foramina, 46.7%). "Quadrafid" branching was detected in 2 females (1.11%). Female patients aged 19-38 years were more prone to have MCB in molar and retromolar regions. MCB was more likely to occur bilaterally. There was also a high positive correlation among the MCB, side, and anatomical regions.Conclusions: MCB is not a rare anatomical variation, and even quadrafid branching can be observed in the hemimandible. CBCT images should be examined carefully for possible MCB to minimize postopera-tive complications during dental surgery.(c) 2022 American Association of Oral and Maxillofacial Surgeons J Oral Maxillofac Surg 80:1966-1977, 2022