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Öğe Accuracy of four different apex locators in primary molars: An in vitro study(Türkiye Klinikleri Yayınevi, 2023) Akleyin, Ebru; Özata, Merve Yeniçeri; Kaya, SadullahObjective: The aim of this study is to compare and evaluate the accuracy of 4 different electronic apex locators (EALs) (Root ZX Mini, Raypex 6, Propex Pixi, and E-Pex Pro) in primary molars with and without root resorption. Material and Methods: Forty-eight mandibular primary molar teeth with (24 teeth) and without (24 teeth) physiological root resorption, each with 4 root canals, were included in the study (96 canals in with resorption group and 96 canals in without resorption group) (n=192 root canals). The actual working length (AWL) was determined by subtracting 0.5 mm from the measured length for each canal. The differences between AWL and electronic working length readings of the 4 EALs and accuracy rates within specified tolerance intervals (TI; ±0.5 and ±1.0 mm) were calculated. Results: The presence of resorption in the teeth significantly affected the measurement using Root ZX Mini (p<0.05). In teeth without resorption, all EALs yielded an accuracy rate of 100% at ±1.0 mm TI, whereas the accuracy rates ranged from 91.7% to 95.8% at ±0.5 mm TI. In teeth with resorption, EALs yielded accuracy rates of 74.0%-65.6% at ±1.0 mm TI and 52.1%- 60.4% at ±0.5 mm TI. Conclusion: At ±0.5 mm TI, Raypex 6 had greater accuracy in teeth without root resorption, whereas Propex Pixi had greater accuracy in teeth with root resorption. Apex locator preference may vary depending on the presence or absence of resorption.Öğe Can the Density of Mineralized Dental Tissues (Dentin and Enamel) Be Measured and Compared with 3D Cone Beam Computed Tomography in Cases of Ectodermal Dysplasia?(Int Scientific Information, Inc, 2022) Yavuz, Yasemin; Akleyin, Ebru; Dogan, Mehmet Sinan; Goncharuk-Khomyn, Myroslav; Akkus, ZekiBackground: Since 3-dimensional cone beam computed tomography (CBCT) started to be used in dentistry, mineral density can now be examined with computer software from the data on the images obtained. Detailed and clear im-ages at different slice intervals can be obtained with CBCT, and mineral density can be measured from the im-age data on a computer with a Hounsfield unit (HU) scale. In addition to the broad opportunities presented by CBCT, this feature has presented a wider perspective to researchers. Material/Methods: In this study, the CBCT images obtained from patients with the genetic disorder of ectodermal dysplasia were compared with the images of a control group to determine differences in mineralization of the teeth and to show that these could be compared by measuring the mineral density of dentin and enamel tissues using the HU scale on data from CBCT images. This opens new opportunities for cognitive and implementation research. Results: In the study, CBCT images of 14 ectodermal dysplasia and 14 control group cases previously obtained for vari-ous reasons were used. Mineral density measurements were made from 4 different regions of the teeth of the ectodermal dysplasia and control groups (incisor edge of the crown, the center buccal, cervicale line, and apex of the teeth), and the groups were compared. Conclusions: The aim of this study was to provide a new overview of the feasibility and suitability of mineralization mea-surement of dentin and enamel dental tissues with CBCT in ectodermal dysplasia and control groups.Öğe Clinical and radiological findings, SEM analysis and evaluation of caries risk in ectodermal dysplasia cases(Taylor & Francis, 2022) Yavuz, Yasemin; Akleyin, Ebru; Akdağ, Mehmet Zülküf; Çolak, Mehmet; Doğan, Mehmet Sinan; Kotanlı, SedefEctodermal dysplasia (ED) consists of many different combinations of irregularities that include developmental defects that occur in two or more of the following tissues: teeth, nails, skin, hair and sweat glands. The aim of this study was to evaluate the possible carries risk, perform scanning electron microscopy (SEM) mineral analysis in ectodermal dysplasia cases and describe the oral aspects. Ectodermal dysplasia cases, 41 patients (22 males and 19 females, aged 1.5 to 45 years), had a clinical examination. SEM analyses were performed from teeth that had to be extracted from ED cases for various reasons. Forty-one patients had tooth agenesis (from hypodontia to anodontia), multiple caries, hair and nail dystrophy. Also, extra orally they had sparse or absent hair, a short face, an unusual facial concavity, maxillary retrusion and relative mandibular protrusion. Differences between tooth samples were determined by SEM analyses. SEM analyses showed that the mineral content of ED teeth was lower than that of normal teeth and the surface properties of dentin and enamel were different. It is necessarily to support this observation with more comprehensive research. When dentists examine ED patients, they should consider the oral mucosa for excessive dryness and increased dental caries and should conduct a comprehensive, multidisciplinary approach to these patients in order to improve their dental, masticatory and caries conditions.Öğe Çürük Nedeniyle Dişlerin Mineralize Dokularında oluşan Kayıplar KIBT ile Kantitatif Olarak Ölçülebilir mi?(Harran Üniversitesi, 2022) Yavuz, Yasemin; Akleyin, Ebru; Akkuş, Zeki; Doğan, Mehmet EminBilindiği gibi günümüzde diş hekimliğinde yaygın olarak kullanılmaya başlanılan üçboyutlu konik ışınlı bilgisayarlı tomografiler (KIBT) ile elde edilen görüntülerde bilgisayarortamında Hounsfield units (HU) skalası yardımıyla sert dokularının mineral yoğunluklarıölçülebilmektedir. Çalışmamızda çeşitli nedenlerle elde edilmiş olan KIBT tarama görüntülerindenseçilmiş olan 15 çürük dişte çürük ve sağlıklı mine-dentin dokularından elde edilen HUskalası ölçüm değerleri karşılaştırılmıştır.Bu öncül çalışmada, çürük diş mine ve dentin dokularının mineralizasyon yoğunlukölçümünün yapılabilirliği bu sayede çürük dişlerin kantitatif değerler ışığındakarşılaştırılabileceği belirlenmiştir. Ancak KIBT görüntüleri elde edilirken hastanın yüksekradyasyon dozlarına maruz kalmasından dolayı günümüz için çürük tespitinde klinikmuayene ve geleneksel görüntüleme yöntemlerinin yeterli olduğu düşünüldü.Öğe Dental management in a patient with Crisponi/cold-induced sweating syndrome type 1: a case report(Lippincott Williams & Wilkins, 2022) Akleyin, Ebru; Ozata, Merve Yeniceri; Crisponi, Giangiorgio[Abstract Not Available]Öğe Determining the knowledge levels and opinions of high school students aged between 13- 17 about fluoride in toothpastes(Dicle University, 2024) Akleyin, Ebru; Polat, YeldaAims: Fluorine, which has been proven to be effective in preventing dental caries, is applied systemically and topically as a public health method in children and adults. Toothpastes are the most common form of topical fluoridation. The aim of this study was to evaluate the level of knowledge of high school students aged 13-17 years about fluoridated toothpastes and the information sources from which they accessed this information. Methods: A questionnaire prepared by us was administered to 750 volunteer high school students. In the questionnaire, demographic information, tooth brushing habits, knowledge and opinions about fluorine in toothpastes and the sources of this information were asked. In this study, percentage (%) and frequency (n) values were given as descriptive statistics. Results: Of the 750 high school students who answered our questionnaire, 44% were female, 56% were male and the average age was 14.62 years. When the brushing habits of the students were analyzed; it was seen that 19% of them brush irregularly and 7% of them do not brush their teeth. About fluorine in toothpastes, 47% of the students had no information, 27% thought it prevented caries, 14% thought it was harmful, and 12% were undecided. When students were asked whether the toothpaste, they used to contain fluorine or not, 53% of them did not have any information, 37% of them had access to information from family and friends, 34% from dentists, 27% from social media, and 2% from school. Conclusion: It was observed that high school students’ tooth brushing habits were inadequate and their basic knowledge about fluoride applications was weak. Within the scope of community oral and dental health, it was thought that students should be informed about the caries preventive effect of fluoride at optimum intervals from accurate information sources such as dentists and schools.Öğe Determining the knowledge levels and opinions of high school students aged between 13-17 about fluoride in toothpastes(Dicle Üniversitesi Diş Hekimliği Fakültesi, 2024) Akleyin, Ebru; Polat, YeldaAims: Fluorine, which has been proven to be effective in preventing dental caries, is applied systemically and topically as a public health method in children and adults. Toothpastes are the most common form of topical fluoridation. The aim of this study was to evaluate the level of knowledge of high school students aged 13-17 years about fluoridated toothpastes and the information sources from which they accessed this information. Methods: A questionnaire prepared by us was administered to 750 volunteer high school students. In the questionnaire, demographic information, tooth brushing habits, knowledge and opinions about fluorine in toothpastes and the sources of this information were asked. In this study, percentage (%) and frequency (n) values were given as descriptive statistics. Results: Of the 750 high school students who answered our questionnaire, 44% were female, 56% were male and the average age was 14.62 years. When the brushing habits of the students were analyzed; it was seen that 19% of them brush irregularly and 7% of them do not brush their teeth. About fluorine in toothpastes, 47% of the students had no information, 27% thought it prevented caries, 14% thought it was harmful, and 12% were undecided. When students were asked whether the toothpaste, they used to contain fluorine or not, 53% of them did not have any information, 37% of them had access to information from family and friends, 34% from dentists, 27% from social media, and 2% from school. Conclusion: It was observed that high school students’ tooth brushing habits were inadequate and their basic knowledge about fluoride applications was weak. Within the scope of community oral and dental health, it was thought that students should be informed about the caries preventive effect of fluoride at optimum intervals from accurate information sources such as dentists and schools.Öğe Diş kök kırıklarının belirlenmesinde üç boyutlu konik ışınlı dental tomografi ile intraoral radyografinin in vitro olarak karşılaştırılması(Dicle Üniversitesi, Sağlık Bilimleri Enstitüsü, 2018) Akleyin, Ebru; Yavuz, İzzetAmaç: Klinik pratiğinde dental kök kırıklarının kesin tanısını koymak oldukça zordur. Bu çalışmamızın amacı dental kök kırıklarının teşhisinde üç boyutlu Konik Işınlı Bilgisayarlı Tomografi (KIBT) ve geleneksel intraoral radyografi görüntülerinin karşılaştırılmasıdır. Gereç ve Yöntem: Kökleri sağlam 50 adet üst santral diş köküne laboratuvar ortamında tek darbe vurularak 10 dişte çatlak oluşturulmasına çalışıldı ayrıca diğer 40 dişte kök kırığı oluşturuldu. Kök kırık parçaları arasında aralıksız, 0,2 mm, 0,4 mm ve 0,6 mm aralık kalacak şekilde yapıştırılarak beş farklı grup oluşturulup, KIBT ve geleneksel intraoral radyografi görüntüleri alınmıştır. 30 diş hekiminin incelediği görüntülere ait değerlendirme sonuçlarının doğru teşhis ortalamaları, pozitif tahmin testi ve Fleiss Kappa testi değerleri hesaplanmıştır. Bulgular: 30 farklı diş hekiminin değerlendirmeleri sonucunda genel olarak elde edilen KIBT görüntülerinin geleneksel yöntemlerle elde edilen periapikal radyografi görüntülerine göre diş kökündeki çatlak ve kırıkların teşhisi için daha uygun olduğu ayrıca elde edilen KIBT görüntülerinde voksel boyutu küçüldükçe görüntü kalitesinin arttığı görüldü. Bu çalışmamızda elde ettiğimiz bulgular doğru teşhis ortalamaları, pozitif tahmin testi ve Fleiss Kappa testi kullanılarak elde edilmiştir. Sonuç: Diş köklerindeki çatlak ve kırıkların teşhisinde KIBT ile elde edilen görüntülerin geleneksel intraoral radyografi ile elde edilen görüntülere göre teşhis için daha net görüntüler sağladığı görüldü. Elde edilen sonuçlar çerçevesinde, dişlere uygulanan radyasyon dozu, uygulama süresi ve elde edilen görüntülerin kalitesi göz önüne alındığında 0,3 voksel ile elde edilen KIBT tarama görüntülerinin diş hekimliğinde diş kök çatlak ve kırıklarının teşhisinde yeterli netlikte görüntüler sağlayabildiği görüldü.Öğe Ectodermal dysplasia: A retrospective evaluation of the clinical findings of forty-four cases in the 0-16 years age(Uluslararası Diş Araştırmaları Birliği, 2022) Akleyin, Ebru; Sarıyıldız, Cansu Osmanoğulları; Yavuz, İzzet; Adıgüzel, ÖzkanAim: The aim of this study was to review the craniofacial anomaly results of children diagnosed with ectodermal dysplasia (ED) and to identify the oral requirements of ED cases. Methodology: The data of this study were obtained by taking clinical examinations and radiographs on forty-four (44) children (22 females and 22 males), 0-16 years aged, who were admitted to the Dicle University, Faculty of Dentistry due to dental problems and were diagnosed with ED. The number of affected siblings was ascertained, and systemic findings were evaluated. Malformations in the hair, nails, nose, skin, lips, and teeth were clinically examined. Results: The most common clinical findings were sparse hair, dry skin, sweating problems, respiratory difficulty, saddle nose, a history of fever, hearing loss, and deformation in the nails. In the intraoral and radiological examinations, findings were evaluated of conical teeth, protuberant lips, prosthetic rehabilitation, impacted teeth, and abnormal root resorption. The rates of ED in the siblings of the ED cases were determined as 39.2% in the siblings of male cases and 37.9% in the siblings of female cases. Conclusion: The frequency rates of the anomalies seen in ED obtained in this study can be considered important as a guide for further studies of individuals with ED. When multiple missing teeth and conical teeth are encountered, the dental practitioner should investigate whether or not there are other symptoms of ED, and it must not be forgotten that the dentist may be the first step in the diagnosis of this genetic irregularity.Öğe Effect of different tea brands on color change of flowable resin composite(2023) Özata, Merve Yeniçeri; Bakır, Elif Pınar; Ünal, Samican; Polat, Gamze; Akleyin, EbruAims: This study aimed to evaluate the color change of a low-viscosity fluid resin composite (FRC) aged in 2 different brands of black tea and a Ceylon tea for three different periods (24 hours, 7 days, and 28 days). Methods: Twenty-eight Filtek Ultimate FRC samples with a diameter of 10 mm and a thickness of 2 mm were prepared and polymerized using polytetrafluoroethylene molds. All samples were numbered and polished, and initial color measurements were made. Samples were divided into three experimental groups and a control group (Distilled water) (n=7). All samples were kept in solutions for 24 hours, 7 days, and 28 days, and at the end of these periods, color measurements were made with a spectrophotometer. Data were recorded according to the CIE Lab system. ΔE was calculated by dividing the sum of squares of the difference of the last and first color measurement values by two. One-way ANOVA and Tukey test were used in the analysis of the data. Results: The Yellow Label black tea group caused significantly more color change in 24 hours than the Ceylon tea (p<0.05). Significantly more color changes were observed in the Altınbaş black tea group at 28 days compared to 24 hours (p<0.05). More color changes were observed in the experimental groups at 7 and 28 days compared to the control group (p<0.05). Conclusion: All the tea solutions made coloration on the FRC. The color change increased as the exposure time to the solution.Öğe Effect of different tea brands on color change of flowable resin composite(MediHealth Academy Yayıncılık, 2023) Özata, Merve Yeniçeri; Bakır, Elif Pınar; Ünal, Samican; Polat, Gamze; Akleyin, EbruAims: This study aimed to evaluate the color change of a low-viscosity fluid resin composite (FRC) aged in 2 different brands of black tea and a Ceylon tea for three different periods (24 hours, 7 days, and 28 days). Methods: Twenty-eight Filtek Ultimate FRC samples with a diameter of 10 mm and a thickness of 2 mm were prepared and polymerized using polytetrafluoroethylene molds. All samples were numbered and polished, and initial color measurements were made. Samples were divided into three experimental groups and a control group (Distilled water) (n=7). All samples were kept in solutions for 24 hours, 7 days, and 28 days, and at the end of these periods, color measurements were made with a spectrophotometer. Data were recorded according to the CIE Lab system. ?E was calculated by dividing the sum of squares of the difference of the last and first color measurement values by two. One-way ANOVA and Tukey test were used in the analysis of the data. Results: The Yellow Label black tea group caused significantly more color change in 24 hours than the Ceylon tea (pÖğe Effect of single serve sachet powder drinks on color stability of a nano-hybrid composite resin(MediHealth Academy Yayıncılık, 2023) Akleyin, Ebru; Bakır, Elif Pınar; Ünal, Samican; Polat, Gamze; Özata, Merve YeniçeriAim: Nano-filled composite resin materials used for aesthetic purposes have better mechanical, polish ability, and color stability properties compared to other composite resin types. The aim of this in vitro study was to evaluate the effect of 5 different single serve sachet powder drinks popular among adolescents in recent years on the color change of Nano hybrid composite resin material. Material and Method: In this study, Nano hybrid composite resin (Filtek Z550) and five different types of sachet drinks (cherry flavored powdered drink [Cherry-dp], instant sachet Turkish coffee [IS-Turkish-c], instant sachet filter coffee [IS-Filter-c], instant tea [I-tea], 3-in-1 granulated coffee [3-in-1 Granulated-c] and distilled water [DW]) were used. A total of 42 2×10 mm disc-shaped samples were prepared. The prepared samples were kept in DW in an oven at 37°C for 24 hours and the initial color measurements were made with a spectrophotometer (Vita Easy Shade Advance 4.0., Germany). The samples were divided into 6 groups (n=7) to be kept in 5 colorant solutions and DW (control group). Composite samples were kept in an oven at 37°C and the solutions were changed once a week. Color change was measured before and after 1, 7, and 28 days of immersion. Shapiro Wilk test was used to check whether the data conformed to normal distribution. The variables were analyzed with one-way analysis of variance ANOVA and post-hoc Tukey test (p<0.05). Results: After 28 days of immersion, IS-Turkish-c, IS-Filter-c, and I-tea led to statistically significant discoloration in composite resin (p<0.05). In contrast, no statistically significant difference in discoloration was observed after 24 hours and 7 days of immersion (p>0.05). Conclusion: The results obtained in the present study showed that the Nano hybrid composite material is sensitive to discoloration by long-term use of IS-Turkish-c, IS-Filter-c, and I-tea. It was thought that Nano hybrid composite should not be preferred especially in young people with high coffee and tea consumption or necessary warnings should be given if it is to be used.Öğe Evaluating the radiographic results of apexification treatment in children(2022) Harman, Elif Burcu; Çelenk, Sema; Akleyin, Ebru; Polat, YeldaAim: This retrospective study aimed to evaluate the radiographic success of apexification treatments applied with different materials and techniques. Methodology: Periapical radiographs of 224 maxillary incisors in patients between 6 and 12 years of age who had undergone apexification treatment at the Dicle University, Faculty of Dentistry, Department of Pediatric Dentistry were retrospectively examined. Each apex was scored using the periapical index (PAI) on X-rays obtained at 12 months of follow-up after treatment, and the presence or absence of the apical barrier was evaluated. The Kruskal–Wallis H, Mann–Whitney U, and chi-square tests were used for the statistical analysis (p < 0.05). Results: In the maxillary incisors, apexification was most commonly performed on the maxillary right central teeth (74.11%). The cause for this treatment was trauma in 97.77% of the patients. Enlargement in the periodontal space (95.98%), the presence of lesions (60.71%), loss of lamina dura (54.46%), and external resorption (43.75%) were observed. At 12 months of follow-up after treatment, apical closure (87.95%) was observed in all teeth with open apexes, and the ratio of patients with a PAI of < 2 was 89.35% for calcium hydroxide (CH) apexification and 92.73% for mineral trioxide aggregate (MTA) apexification. Conclusion: The radiographic success of apexification treatments with CH and MTA was found to be high in 224 immature upper incisors.Öğe Evaluation of radiation exposure due to dental radiographs taken during endodontic treatment sessions in young permanent teeth(MDPI, 2022) Akleyin, Ebru; Yavuz, YaseminBackground and Objectives: The aim of this study was to retrospectively analyze the duration of treatment and the number of dental radiographs taken during endodontic treatment (endo-t) of young permanent teeth (YPT). Materials and Methods: Age, gender, affected tooth number, apex status, duration of treatment and dental radiographs taken during this period were retrospectively evaluated in pediatric patients aged 6–15 years who presented to the pedodontic department for endo-t of anterior YPT. Data were analyzed with Kruskal Wallis H, Dunn and Pearson chi-square tests. p < 0.05 was accepted as statistically significant in all analyses. Results: Anterior endo-t was initiated in 471 of 9,200 pedodontic patients between the ages of 6 and 15 years who applied to our university. The reason for seeking treatment was caries (8.1%) and trauma (91.9%). It was observed that 59% of the teeth had an open apex and 45.7% had a closed apex. A total of 1893 periapical radiographs (Per-R) and 245 panoramic radiographs (Pan-R) were taken from 471 pediatric patients during the treatment period. Total number of dental radiographs was 2138 with 4.5 per patient. Number of Per-R was lower in patients whose treatment was completed in a single session (p < 0.001). There was no difference in the number of Pan-R with respect to duration of treatment (p = 0.560). Conclusions: In children, the number of Per-R significantly increased with prolonged duration of treatment encompassing multiple sessions for endo-t procedures of anterior YPT, decided based on the apex and lesion status of the affected tooth. Especially in long-term traditional apexification treatments, treatment should be carried out in children with the ALADAIP (As Low As Diagnostically Achievable being Indication-oriented and Patient-specific) principle in mind.Öğe In Vitro Comparison of Three Dimensional Cone Beamed Dental Tomography with Intraoral Radiography in Detection of Dental Root Factures(Univ Indonesia, Fac Dentistry, 2019) Akleyin, Ebru; Yavuz, IzzetThe precise diagnosis of dental root fractures in clinical practice is quite difficultObjective: Accurate diagnosis of dental root fractures in clinical practice is quite challenging. Here, we aimed to compare results of three-dimensional cone beam computed tomography (CBCT) and conventional intraoral radiography images for diagnosing dental root fractures. Methods: Fifty maxillary central teeth with healthy roots were included in this experiment. Ten teeth were subjected to a single blow in a laboratory to produce cracks, whereas horizontal root fractures with varying degrees of gaps between the fractured segments were created in 40 teeth. The teeth were divided into five equal groups: teeth with crack; teeth with root fractures without gaps; and teeth with root fractures with 0.2-, 0.4-, and 0.6-mm gaps between the fractured segments. CBCT and conventional intraoral radiography images were evaluated by 30 dentists. The mean diagnostic accuracy for detection of root fracture and the positive predictive value were calculated forboth diagnostic modalities. Results: The mean diagnostic accuracy with the use of CBCT images was significantly better than that with the use of traditional intraoral radiography images. Conclusion: CBCT allows for more detailed characterization of root fractures and cracks than traditional intraoral radiography.Öğe Investigation of the knowledge level of allied health professionals in a faculty of dentistry about dental avulsion(Dicle Üniversitesi Diş Hekimliği Fakültesi, 2024) Akleyin, Ebru; Özata, Merve YeniçeriAims: Dental avulsion, complete dislocation of the tooth from its socket, is an injury that requires emergency intervention. The aim of this study was to evaluate the level of knowledge about dental avulsion among dental school allied health professionals who may encounter dental avulsion trauma in the first moment. Methods: A 14-question “Avulsion Questionnaire” designed by the researcher was administered to 54 allied health professionals at Dicle University Faculty of Dentistry by face-to-face interview technique. In this study, frequency (n) and percentage (%) values were given as descriptive statistics. Chi-square analysis was used to analyze the relationships between groups of nominal variables. Results: Of the participants, 48.1% were oral and dental health technicians, 22.2% were nurses, 11.1% were X-ray technicians, and 18.5% were medical secretaries. Those who thought that avulsion injuries constituted an emergency were significantly more likely (p<0.05). Forty-eight percent of the healthcare providers were informed about the injuries, and they obtained this information from dentists. Medical secretaries had never been informed about dental trauma (p<0.05). The level of knowledge about the placement of an avulsed tooth at the scene was low (p>0.05). However, all healthcare providers were aware that in cases of permanent tooth avulsion, a health institution, especially dental hospitals, should be consulted immediately. X-ray technicians and medical secretaries preferred a dry environment as the ideal storage environment, while nurses and dental assistants preferred milk. Conclusion: In this study, we found that the basic knowledge of dental avulsion was not sufficient for all allied health personnel, especially in a dental school, who may encounter parents in the first instance or be consulted by their relatives. Regular training programs for dental trauma management will increase the knowledge of dental assistants in managing avulsion injuries.Öğe Mineral Density Distribution Differences in Enamel and Dentin Tissues in the Teeth Array According to the HU Scale(Assoc Apoio Pesquisa & Saude Bucal-Apesb, 2023) Yavuz, Yasemin; Akleyin, EbruObjective: To evaluate the mineral density of enamel and dentin tissues of healthy individuals using three-dimensional cone-beam computed tomography. Material and Methods: CBCT images of 15 healthy individuals, previously obtained for various reasons, were used in this study. In HU measurements, mineral density measurements were made from three different regions of enamel and three different regions of dentin, and the values obtained were compared. Enamel and dentin mineralization density measurements were measured from six regions, namely the crown cutting edge, buccal middle and cervical region for enamel, and the crown cutting edge, cervical region and root apex for dentin. In the comparisons of groups, the parametric One-Way ANOVA variance analysis method was applied. In the paired comparisons between the groups, the Tukey HSD test was applied as the multiple comparison post hoc test. A value of p<0.05 was accepted as statistically significant. Results: Mineralization density of tooth enamel and dentin tissues was quantitatively different in the maxilla and mandible in anterior and posterior teeth. Conclusion: In all the teeth, there were statistically significant decreases in the mineral density values of enamel and dentin tissue from occlusal towards the cemento-enamel junction. Statistically significant decreases were observed in the mineral density values of enamel and dentin tissue from the anterior region towards the posterior region in the teeth in both the upper and lower jaws.Öğe Reasons for requesting cone-beam computed tomography in children and adolescents: a 10-year study(Taylor and Francis Ltd., 2022) Akleyin, Ebru; Eskibağlar, Büşra KaraağaçAnalysis of the reasons for requesting dental cone-beam computed tomography (CBCT) in children and adolescents can provide new evidence to guidelines developed specifically to protect patients from potential harmful effects of ionizing radiation. This retrospective study aimed to determine the reasons for requesting dental CBCT in paediatric patients. We included all patients aged <18 years who underwent CBCT between 2011 and 2021 at the Dentomaxillofacial Radiology Department of Dicle University Dental Faculty. Out of 8214 archived records in total, 1619 CBCT request forms of paediatric patients were examined. These forms provided the data on each participant’s age, gender, requesting department, the reason for the request, and year of the request. We evaluated 762 males and 857 females; 0.68% were aged 4–5 years, 27.55% were 6–11 years, and 71.77% were 12–17 years. The requests for CBCT were made by the Orthodontics Department in 61.4% of cases and by the Surgical Department in 25.82% of cases. The most common indication for CBCT (33.42% of cases) was to determine the presence of embedded teeth. We found a significant correlation between the age group and indications (p < 0.05). The age group of children and adolescents for whom CBCT was requested most often was the 12–17 years age group. In conclusion, the most common indication for CBCT was to determine the presence of embedded teeth in orthodontics. The rate of use of CBCT in the diagnosis and treatment of paediatric patients in dentistry has increased in the last decade.Öğe Saliva analysis in children with active caries before and after dental treatment(Universitas Airlangga, Faculty of Dental Medicine, 2022) Akleyin, Ebru; Sarıyıldız, Cansu Osmanoğulları; Yavuz, İzzet; Toptancı, İsmet RezaniBackground: The amount and quality of saliva play important roles in maintaining an intraoral bacterial balance. The quality of saliva is defined by its buffering capacity, viscosity, pH and protein content. The amount of saliva is usually related to the flow rate. Purpose: This study aimed to compare the flow rate, pH, viscosity and buffering capacity of saliva as well as plaque formation in children before and after dental treatment. Methods: Saliva samples were taken from paediatric patients before their treatments and one month after their dental treatments had ended, and these saliva samples were then analysed. For each sample analysis, the GC Saliva-Check Buffer kit (GC Corporation, Tokyo, Japan) was used to evaluate buffering capacity, pH and flow rate, and the GC Saliva-Check Mutans kit (GC Corporation, Tokyo, Japan) was used for the determination of Streptococcus Mutans. GC Tri Plaque ID gel (GC Corporation, Tokyo, Japan) was applied to evaluate plaque maturation. Results: The pre-treatment buffering capacity, pH and viscosity sample values were found to be significantly lower than the post-treatment values (p[removed]0.05). When examining plaque maturation, it was determined that all of the post-treatment plaque was pink. Conclusion: This study showed that the pH, viscosity and buffering capacity of saliva had increased significantly post-treatment and that the formation of plaque had decreased in children with active caries after all their dental treatments had been completed.Öğe Three-Dimensional Modeling and Quantitative Assessment of Mandibular Volume in Ectodermal Dysplasia: A Case Series(Mdpi, 2024) Akleyin, Ebru; Yavuz, Yasemin; Yardimeden, AhmetBackground and Objectives: Ectodermal dysplasia (ED)-a genetic disorder-is characterized by severe tooth deficiency. We compared the mandibular volume and the sagittal and horizontal mandibular widths between patients with ED (ED group) and individuals without tooth deficiency (control group) using three-dimensional modeling. We hypothesized that the mandibular volume differs in ED cases owing to congenital tooth deficiency. Materials and Methods: We used previously obtained cone-beam computed tomography (CBCT) images of 13 patients with ED. The control group data comprised retrospective CBCT images of patients of similar age and sex with a skeletal relationship of class 1. Further, using the three-dimensional image analysis software, the tooth crowns were separated from the mandible, the mandible was reconstructed and the gonion-to-gonion distance in the mandible was marked, the distance to the menton point was measured, and the distance between the two condyles was measured and compared with the control group. Results: Overall, 46.2% and 53.8% of the participants were men and women, respectively. In the ED group, the mean age of the participants was 15.46 (range, 6-24) years, and the mean number of mandibular teeth was 4.62. Notably, the edentulous mandible volume of the ED group (27.020 mm(3)) was statistically significantly smaller than that of the control group (49.213 mm(3)) (p < 0.001). There was no difference between the two groups in terms of the marked points. For data analysis, the Shapiro-Wilk test, independent samples t-test, and Mann-Whitney U test were used. Conclusions: It has been considered that mandible volume does not develop in ED cases because of missing teeth. Modern practices, such as the CBCT technique and three-dimensional software, may be effective in identifying the true morphologic features, especially in patients with genetic syndromes affecting the maxillofacial structure.
