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Öğe Risk assessment of nasal cavity perforation in the maxilla: A virtual ımplant placement study using cone beam computed tomography(Mdpi, 2024) Kaya, Doğan Ilgaz; Şatır, Samed; Öztaş, Beyza; Yıldırım, Hasan; Aktı, AhmetImplant surgery in individuals with atrophic maxilla presents challenges, particularly concerning nasal cavity complications such as perforations, implant migration, and airway obstruction. While panoramic radiographs offer diagnostic convenience, their two-dimensional nature limits the evaluation of anatomical structures. Cone beam computed tomography (CBCT) provides a three-dimensional assessment, enhancing surgical planning accuracy and potentially reducing complications. With the aim of understanding the measurement differences between panoramic radiographs and CBCT images, this retrospective study examined CBCT images of patients with severely atrophic maxilla taken between September 2021 and December 2023 at the Ahmet Kele & scedil;o & gbreve;lu Faculty of Dentistry. Virtual implants were placed in various tooth regions using OnDemand3D software. The incidence of nasal cavity perforations and vertical bone height differences between panoramic radiographs and CBCT images were evaluated. For this purpose, vertical bone length measurements in panoramic and CBCT images were compared for the virtual implant placement areas. Statistical analyses, including t-tests and ANOVA, were performed to determine significant differences among quantitative measurements, and a chi square test with Bonferroni corrected z-tests were used for possible associations between ratios. CBCT data from 59 patients, totaling 1888 virtual implants, revealed significant differences in implant depths among tooth regions (F = 9.880, p < 0.001). Canine regions showed higher perforation risks, especially with 12 mm and 14 mm implants. Panoramic radiographs often overestimated vertical bone height in canine and first premolar regions compared to CBCT measurements, which could lead to increased perforation risks. Radiographic evaluations using CBCT prior to implant surgery in atrophic maxilla cases are crucial to prevent nasal cavity complications. Panoramic radiographs may inadequately represent three-dimensional anatomy, underscoring the importance of CBCT for accurate implant placement and surgical planning. Further studies should consider varying implant sizes and brands to generalize findings.Öğe Marginal bone loss and clinical evaluation of angled implants: A retrospective study(2024) Öztaş, Beyza; Kaya, Doğan IlgazAim: The volume of the edentulous crest and its proximity to critical anatomical structures are important limiting factors for implant surgery. Surgical procedures with complications can be avoided by placing angled implants. The aim of this clinical study was to evaluate marginal bone loss and the complications of angled implants. Materials and Methods: Fifty-eight dental implants were examined in 32 patients (16 females, 16 males) with cone beam computed tomography (CBCT) images from patients with angled implants and complete edentation. The marginal bone loss in angled implants that were functional for 15 to 30 months was evaluated according to factors such as implant angle, connection type, opposing arch restoration type and planning of superstructure restoration. Marginal bone loss measurements were recorded from CBCT sections. Results: It was determined that 3.44% of the implants placed had an inclination of less than 15°, 75.86% had an inclination between 15° and 30° and 20.68% had an inclination of more than 30°. While there was no marginal bone loss on the mesial and distal surfaces, the average marginal bone loss was 0.66 on the buccal surfaces and 0.93 in the lingual region. Only one of the implants examined failed. No pain or infection was observed in any of the implants examined. Conclusion: According to the results of this retrospective clinical study, further clinical studies with larger sample sizes are needed to evaluate angled implants supported by full arch fixed prostheses as a predictable and valid treatment method in the prosthetic rehabilitation of edentulous jaws.Öğe Evaluation of the accuracy of cameriere, modified cameriere and willems and blenkin-evans methods for turkish children(Elsevier Inc., 2025) Şahin, Tuğçe Nur; Güleç, MelikeObjective: Age determination aims to determine an individual's physiological age without information about the individual's chronological age (CA) or in forensic situations in a way that does not cause loss of legal rights. The study aimed to evaluate the suitability of Cameriere (CM), Modified Cameriere (MCM) for Turkish children, Willems (WM), and Blenkin-Evans methods (BEM) for Turkish children. Design: A total of 616 Panoramic images of 321 female and 295 male healthy children from the Central Anatolia region aged between 6 and 14.99 years were used for the study. Individuals were grouped according to their age and gender (18 groups). Kruskal-Wallis test was used to evaluate the appropriateness of the methods, and intra- and interobserver agreement was statistically evaluated using the Intra-Interclass Correlation Coefficient (ICC) (p < .05). Results: The CA- estimated age (EA) difference was underestimated by 0.49, 0.45, and 0.20 years with MCM, WM, and BEM, respectively, and overestimated by 0.22 years with CM for girls; underestimated by 0.52, 0.43, and 0.12 years with MCM, WM, and BEM, respectively, and overestimated by 0.17 years with CM for boys (p < .005). Conclusion: If groups are evaluated separately, the closest results to CA for both sexes were obtained with CM. However, when the mean age difference for all age groups is evaluated by gender, the closest results to all individuals' CA were obtained using the BEM. Accordingly, if it is desired to modify a valid age determination method for a population, children from different provinces should be included in the sample group, especially in countries like Turkiye, where many different ethnic origins live together. © 2024 The AuthorsÖğe Effect of thermal cycling on the flexural strength of 3-D printed, CAD/CAM milled and heat-polymerized denture base materials(BioMed Central Ltd., 2024) Temizci, Tuğba; Bozoğulları, Hatice NalanBackground: This study compared the impact of thermal cycling on the flexural strength of denture-base materials produced through conventional and digital methods, using both subtractive and additive approaches. Methods: In total, 60 rectangular specimens were fabricated with specific dimensions for flexural strength tests. The dimensions were set according to the International Organization for Standardization (ISO) guideline 20795-1:2013 as 64 × 10 × 3.3 ± 0.2 mm. Specimens from each material group were divided into two subgroups (thermal cycled or nonthermal cycled, n = 10/group). We used distinct methods to produce three different denture-base materials: Ivobase (IB), which is a computer-aided-design/computer-aided-manufacturing-type milled pre-polymerized polymethyl methacrylate resin disc; Formlabs (FL), a 3D-printed denture-base resin; and Meliodent (MD), a conventional heat-polymerized acrylic. Flexural strength tests were performed on half of the samples without a thermal-cycle procedure, and the other half were tested after a thermal cycle. The data were analyzed using a two-way analysis of variance and a post hoc Tukey test (α = 0.05). Results: Based on the results of flexural-strength testing, the ranking was as follows: FL > IB > MD. The effect of thermal aging was statistically significant for the FL and IB bases, but not for the MD base. Conclusions: Digitally produced denture bases exhibited superior flexural strength compared with conventionally manufactured bases. Although thermal cycling reduced flexural strength in all groups, the decrease was not statistically significant in the heat-polymerized acrylic group.Öğe Effect of thermocycling on the mechanical properties of permanent composite-based CAD-CAM restorative materials produced by additive and subtractive manufacturing techniques(BioMed Central Ltd., 2024) Temizci, Tuğba; Bozoğulları, Hatice NalanBackground: The aim of the study was to determine and compare the biaxial flexural strength (BFS) and Vickers hardness (VHN) of additive and subtractive manufactured permanent composite-based restorative materials, before and after thermal aging. Methods: A total of 200 specimens were prepared; 100 disc-shaped specimens (diameter 13 × 1.2 mm) for the BFS test and 100 square specimens (14 × 14 × 2 mm) for the VHN test. The specimens were made from various materials: two subtractive composite-based blocks (Cerasmart 270 [CS], Vita Enamic [VE]), two additive composite-based resins used for two different vat polymerization methods (digital light processing [DLP]; Saremco Print Crowntec [SC] and stereolithography [SLA]; Formlabs Permanent Crown Resin [FP]), and one feldspathic glass-matrix ceramic block (Vita Mark II [VM]) as the control group. Specimens of each material were divided into two subgroups: thermal cycled or non-thermal cycled (n = 10). BFS and VHN tests were performed on all groups. Data were analyzed with two-way ANOVA and post hoc Tukey test (α = 0.05). Results: The type of restorative material used for the specimen had a statistically significant influence on both BFS and VHN values. However, thermal cycling did not affect the BFS and VHN values. After thermal cycling, the results of the BFS test were ranked from best to worst as follows: CS, FP, SC, VE, then VM. For the VHN values, the order from best to worst was as follows: VM, VE, CS, FP, then SC. Conclusions: 3D printed and milled composite groups showed higher BFS than feldspathic ceramics. When the VHN results were examined, it was seen that the 3D resin groups had the lowest VHN values. Furthermore, it was observed that the thermal cycle had no effect on BFS or VHN. © The Author(s) 2024.Öğe Effect of tobacco use on cadmium accumulation in the oral keratinized mucosa(BioMed Central Ltd., 2024) Şatır, Samed; Kaya, Doğan Ilgaz; Özsoy, Sümeyye ÇelikBackground: This cross-sectional study aimed to evaluate the effect of tobacco use on the accumulation of cadmium (Cd), a carcinogenic element, in the oral keratinized mucosa (OKM). Methods: OKM samples were obtained by standard punch biopsy from nonsmokers (n = 19) and smokers (n = 21). Cd analysis was performed using inductively coupled plasma optical emission spectroscopy (ICP-OES). The calibration curve R2 values for three wavelengths (214,439, 226,502, and 228,802 nm) were at the level of 0.9999. The frequency of consumption of foods that are Cd sources, such as seafood, rice, and vegetables, was assessed in all patients. The age, sex, and nutritional habits of all patients and the frequency of tobacco consumption by smokers were recorded. The independent t-test, Mann–Whitney U test, Fisher’s exact test, and Spearman correlation test were used for the statistical analyses, and p < 0.05 was considered significant. Results: Although the Cd levels in nonsmokers were higher than those in smokers, no statistically significant difference was found (p > 0.05). In smokers, a positive correlation was found between age and Cd level (r = 0.574, p = 0.006). No significant relationship was found between the groups in terms of nutrition or between the frequency of tobacco consumption and Cd accumulation. Conclusion: The OKM may not have the characteristic cumulative accumulation in terms of toxic elements. Changes in the turnover rate, keratinization, and apoptotic mechanisms in the OKM with the thermal/chemical effects of tobacco may be responsible for the difference in Cd accumulation. Trial registration number: TCTR20230206001/06 Feb 2023 (TCTR: Thai Clinical Trials Registry).Öğe A potential novel technique for measurement of pulp volume on periapical radiography: A pilot study(Wiley, 2024) Şatır, Samed; Özel, Selale; Orhan, KaanPulp volume can be assessed during dental treatment. Three-dimensional imaging techniques are not routinely used for this purpose because of high radiation doses. This study aimed to develop a novel method to measure pulp volume using periapical radiography. In this study, cone-beam computed tomography (CBCT) was used as a reference method. Periapical radiography and CBCTs obtained from the same patients (n = 32) were recorded. Pulp volume was determined by observing the density differences between the pulp and peripheral structures using ImageJ. A method of graph and volume calculation was developed for each tooth. The Shapiro-Wilk test and Mann-Whitney U test were used to show normality and non-normal distributions. The Bland-Altman plot was used to show the scattering of the mean versus difference values of the measurements of the two methods used to calculate the pulp volume. Normality was evaluated using the Shapiro-Wilk test. CBCT measurements are normally distributed (p = 0.307), while ImageJ is not normally distributed (p = 0.027). Therefore, the mean difference between the two groups was analyzed using the nonparametric Mann-Whitney U test. There was a statistically significant difference between the CBCT and ImageJ measurements (p = 0.01). According to Spearman's correlation analysis, the results obtained from the novel method were moderately correlated with those obtained from the reference method (r = 0.444). The results of this study indicated that a novel method-based Java software can be used to calculate pulp volume using low-dose radiation containing periapical radiography.Öğe The effects of dry needling and face yoga on pain, depression, function, and sleep quality in patients with temporomandibular dysfunction(Elsevier, 2024) Özmen, Elif Esra; Ünüvar, Bayram SönmezContext: Temporomandibular joint dysfunction (TMD) poses significant challenges due to its diverse symptoms and impact on patients' daily lives. Objective: This study aimed to explore the effectiveness of two innovative interventions, dry needling and face yoga, in managing TMD-related issues such as pain, depression, and sleep quality. Design and study participants: Ninety patients with TMD symptoms were enrolled in a prospective randomized controlled trial. The patients were divided into three groups: dry needling, face yoga, and a control group. Various assessments, including Visual Analog Scale for pain, Beck Depression Inventory for depression, and Pittsburgh Sleep Quality Index for sleep quality, were conducted before and 6 weeks after the interventions. Results: A decrease in pain levels and a statistically significant increase in jaw joint movements (mouth opening, protrusive movement, lateral movements) were observed in the dry needling and face yoga groups after treatment (p <0.05). Additionally, improvements in sleep quality were observed (p <0.05). Conclusion: Dry needling and face yoga interventions demonstrated efficacy in managing TMD symptoms, including pain relief and improved jaw movement. The findings suggest that these interventions can be valuable additions to the treatment regimen for patients suffering from TMD-related issues. However, further research is warranted to explore the long-term effects and mechanisms underlying these interventions in TMD management.Öğe Readability and contents evaluation o patient ınforming texts on orthognathic surgery in Turkish websites: methodological study(2023) Özmen, Elif EsraObjective: Orthognathic surgery is the applications per- formed to eliminate the disorders in the face and jaw structure of the person and to regain the normal functions of the teeth together with the jaws. Upon the increasing internet use, people reach the first knowl- edge about these surgeries, where serious complications can be seen, through websites. It is aimed to assess the Turkish texts released on the internet on orthognathic surgery regarding toreadability and contents in this study. Material and Methods: The first 71 websites were ex- amined in the Google (Google LLC, Mountain View, California, USA) search using the keywords “orthognathic surgery.” Obtained patient in- forming texts were assessed in accordance with Atesman Readability Index. The contents were also assessed regarding to whether they pro- vide sufficient information about surgery or not. Results: It was ob- served that the texts which have been examined in the study were of moderate difficulty subject to the Atesman Readability Index (54.8±9.4). It was concluded that the contents of the information on the examined websites in research had been sufficient regarding to the sur- gical preparation process, but surgical complications had not been ad- equately referred. Conclusion: The results of the study showed that the patient informing texts on Turkish websites have moderate readability difficulties. It was observed that possible complications were not cov- ered enough although sufficient information has been provided about the preparation process of orthognathic surgery and it was concluded that the expected effects on the reader would not be observed if they were not understood by the patients.Öğe Evaluation of readability and content of patient ınformation texts on turkish websites about pediatric dentistry under sedation(2023) Şahin, Tuğçe Nur; Özmen, Elif EsraPurpose: Disability status, fear, and anxiety can pose an obstacle to planned dental treatment in children. In such cases, the delivery of dental treatment with sedation is a very common treatment method and more comfortable for both pediatric patients and physicians. This study aims to evaluate the readability and content of patient information texts on websites related to the delivery of dental treatments with sedation in pediatric patients. Materials and Methods: The ?rst 60 Turkish websites were scanned in Google (Google LLC, MountainView, California, USA) search using the keywords ?pediatric dental treatment under sedation? in Turkish. After the ?rst 60 websites were evaluated according to the exclusion criteria, a total of 31 websites were included in the study and the information texts were evaluated according to the Ateşman Readability Index (ARI). Their contents were also examined in terms of whether or notthey provided suf?cient information about the procedure. Results: The texts examined in the study were moderately dif?cult (52,9±9,4) according to the ARI and at 11th ? 12th grade level, most of the websites examined were owned by private clinics (64,5%), and the texts were prepared by pediatric dentists. The content of information on the examined websites could be deemed suf?cient in terms of the de?nition of sedation (100%), the indications (100%), and the bene?ts (83,8%); however, the complications (29,1%), possible procedure-related complications (16,2%), its difference from general anesthesia (54,8%) and the cost (29,1%) were not addressed suf?ciently. Conclusions: The results of the study suggested that the relevant patient information texts on Turkish websites need to be organized in a more understandable manner. For this purpose, readability tests may be used before publishing the text. The reason why most of the texts did not mention contraindications, complications, and cost of sedation may be intending not to create fear or prejudice about the procedure among readers. However, when preparing an information text on an interventional medical procedure, it is legally and ethically required to inform the reader about that procedure fully and clearlyÖğe Evaluation of surface roughness of resin materials with different contents(İlirya, 2022) Servi, Turan; Kölüş, TürkayThe aim of this study is to compare the roughness level of the surfaces of polymerized temporary acrylic resin, standard 3D resin, temporary 3D resin materials with polished and unpolished conditions. Methodology: Thirty samples of 1 cm diameter and 5 mm height cylinders of temporary 3D resin (Alias C & B Temp, Dokuz Kimya, İstanbul, Türkiye) and standard 3D resin (Alias Sharp & Rigid, Dokuz Kimya, Dokuz Kimya, İstanbul, Türkiye) were produced with 3D printer (Photon Mono X, Anycubic). Residual resins were cleaned in Wash & Cure Plus (Anycubic) device using isopropyl alcohol and kept under UV light for 10 minutes in the same device to fully polymerize. Self-curing temporary acrylic resin (Imident, Imicryl, Konya, Türkiye) was prepared according to the manufacturer's instructions and 30 samples were prepared by transferring them to moulds of the same size. Half of the samples in each material were polished for 90 seconds with the same dentist using polishing paste (Universal Polishing Paste, Ivoclar Vivadent) (n=15). The surface of each sample was measured three times with a 120˚ angle difference using a profilometer (SJ-201, Mitutoyo, Kanagawa, Japan) and the average was taken. Levene test, t test, two-way ANOVA and Tukey test were used for statistical analysis. A p-value less than 0.05 was accepted for statistical significance. Results: Roughness values 1.9173±0.25078 Ra in the Unpolished Temporary 3D Resin group, 0.2807±0.13317 Ra in the Polished Temporary 3D Resin group, 0.7760±0.17175 Ra in the Unpolished Standard 3B Resin group, 0 in the Polished Standard 3D Resin group It was found to be 0.1887±0.08340 Ra, 2.4827±0.79651 Ra in the Unpolished Cold Acryl group, and 0.6307±0.22118 Ra in the Polished Cold Acryl group. Conclusion: The roughness of 3D printed materials is lower than that of conventional temporary acrylic resin and polishing significantly reduced roughness in all groups.Öğe Mid- and long-term effect of kinesio taping on temporomandibular joint dysfunction: A randomised- controlled trial(Acıbadem Mehmet Ali Aydınlar Üniversitesi, 2022) Özmen, Elif Esra; Durmuş, Ercan; Ünüvar, Bayram Sönmez; Kalaycı, AbdullahThis study aimed to determine the mid- and long-term effects of Kinesio-taping (KT) on individuals with temporomandibular joint disorders (TMD). Methods: Thirty-three patients were randomly divided into two groups: group 1 is control; group 2 is KT group. KT treatment was applied in six sessions (one session/week) for 6 weeks. At 6 months, the visual analogue scale (VAS) values and range of motion of the jaw before and after the treatment were recorded. Results: After the treatment in both groups, a statistically significant decrease in pain VAS values of the lateral pterygoid and masseter muscles was observed at the 6th month control (p < 0.05). In the intergroup evaluation, a statistically significant difference, in favour of the study group, was noted in all clinical parameters evaluated before treatment and at week 6 after treatment (p < 0.05). Compared with the control group, a statistically significant difference, in favour of the study group, in all clinical parameters evaluated except lateral pterygoids and protrusion VAS score was found at 6th months (p < 0.05). Conclusions: The results of this study suggest that KT application could be a preferred treatment option in patients with TMD, pain and movement limitation. Further investigation is needed for widespread application.Öğe Beyazlatıcı diş macunlarının sitotoksisitesinin değerlendirilmesi(Ege Üniversitesi, 2022) Kölüş, Türkay; Çelik, Ayşe Canan Tutku; Ülker, Hayriye EsraBeyazlatıcı etki gösteren diş macunlarının kullanımları içinde bulunduğumuz dönemde sürekli artma eğilimdedir. Bu diş macunlarının beyazlatıcı etken maddelerine bağlı olarak toksik etkileri normal diş macunlarına göre yüksek olabilmektedir. Bu çalışmanın amacı piyasada bulunan beyazlatıcı etki gösteren farklı dört diş macunun sitotoksisitesini XTT yöntemi ile L929 hücreleri üzerinde in vitro olarak değerlendirmektir. Yöntem ve Gereçler: Çalışmada test edilecek olan beyazlatıcı etki gösteren Signal Expert Protection Beyazlık (Unilever, Londra, İngiltere), Signal White Now (Unilever, Londra, İngiltere), Colgate Optic White Parıldayan Beyazlık (Colgate-Palmolive, New York, ABD) ve Sensodyne Truewhite (GlaxoSmithKline, Londra, İngiltere) diş macunlarının muhtelif konsantrasyonları hazırlandı. Hazırlanan konsantrasyonlar 96 kuyucuklu hücre kültür kabı içerisindeki L929 hücre kültürlerine 200 µl eklendi ve hüre kültür kapları 24 saat inkübatörde bekletildi. XTT [2,3-Bis(2-metoksi-4-nitro-5-sulfofenil)-2H-tetrazolyum] testi ile L929 hücrelerinin canlılık oranları belirlendi. Shapiro-Wilk tek yönlü varyans ve Tukey testleri ile istatistiksel analiz yapıldı. Bulgular: İstatistiksel inceleme sonucunda Sensodyne Truewhite’ın 1/8 konsantasyonu hariç tüm diş macunlarının tüm konsantrasyonları sitotoksik bulunmuştur. Diş macunlarının sitotoksisite sıralaması Sensodyne TruewhiteÖğe Diş hekimlerinin teknoloji kabul modeli çerçevesinde elektronik sağlık kayıtlarını kullanma eğilimleri(Necmettin Erbakan Üniversitesi Diş Hekimliği Fakültesi, 2022) Çakır, Asu; Özkaynak, MustafaTarihi oldukça eski dönemlere dayanan tıbbi kayıtların, hasta bakımında ve sağlık kalitesinin iyileştirilmesindeki önemi hiçbir zaman yadsınamaz. Bununla birlikte geçmişte kullanılan ve okunamama, eksik doldurulma, kaybolma gibi dezavantajları olabilen kağıt temelli kayıtlar günümüzde yerini elektronik sağlık kayıtlarına bırakmaktadır. Kişilerin sağlık ve hastalıklarıyla ilgili bilgilerin elektronik ortama aktarılmasıyla birlikte sağlık çalışanlarının işleri oldukça kolaylaşmış ve verimlilik artmıştır. Elektronik sağlık kayıtları, kişilerin sağlık ve hastalıklarıyla ilgili bilgilerin elektronik ortama aktarılmasıyla çalışan verimliliğini artırarak, kurumların etkililiğini sağlayan sistemdir. Günümüzde bilgi teknolojilerinin artması kurum ve bireyleri bu teknolojileri kullanmaya zorlamaktadır. Ancak tüm kullanıcıların bilgi teknolojileri ile ilgili bilgi ve tecrübeleri aynı olmayabileceğinden teknolojiyi kabul düzeyleri de aynı olmayacaktır. Diğer taraftan sağlık profesyonellerinin elektronik sağlık kayıtlarını etkili bir şekilde kullanması için bu teknolojileri kabullenmesi gerekmektedir. Bundan dolayı kullanıcıların teknolojiyi kabul düzeyinin belirlenmesi oldukça önemlidir. Özellikle hasta başında oldukça uzun süre vakit geçiren diş hekimlerinin işleri elektronik sağlık kayıtları ile kolaylaşacak ve klinikte geçirdikleri süre daha verimli hale gelecektir. Buradan hare ketle elektronik sağlık kayıtları kullanımının artırılmasının ülkemizde sağlık hizmetlerinde kaliteyi artıracağını düşünmekteyiz.Öğe The diagnostic performance of the Java-based software colorization tool in the diagnosis of dental caries: an in vitro study(Quintessence Publishing Co Inc, 2023) Alkis, Humeyra Tercanli; Şatır, Samed; Kirici, Damla; Barutcugil, CagatayObjective: This in vitro study aimed to compare the diagnostic outcomes of caries detection in premolar and molar teeth on digi-tal periapical radiographs viewed as grayscale images and in the Java-based software (JBS) pseudocolor spectrum. Method and materials: The study comprised 92 premolar or molar human teeth (n=46 with caries and n=46 without clinical caries). For each tooth, digital periapical radiographic images (DPRIs), JBS pseudo -color images, and stereomicroscope images were collected, and caries presence and depth were recorded. In JBS pseudocolor im-ages, regions of interest (ROIs) were detected, and ROI values for caries area (R011), non-caries area (R012), mesial area (R013), and distal area (R014) were obtained. The degree of inter-observer agreement was determined using the kappa coefficient, and the sensitivity and specificity of the methods were assessed using ROC analysis. Results: While neither method was consistent with ste-reomicroscopy in determining caries depth (P<.005), for both ob-servers the kappa value of JBS pseudocolor images were slightly higher than those for DPRIs. R011 was found to be significantly lower than R012 (P<.001), whereas no difference was found be-tween R013 and R014 (P =.877). For both observers, the sensitivity and specificity obtained from JBS pseudocolor were above 89%. Conclusion: JBS pseudocolor images can be used for caries detec-tion and offer high sensitivity and specificity.Öğe Evaluation of the effects of dual antiplatelet therapy on guided bone regeneration in peri-ımplant bone defect(B.C. Decker, Lippincott Williams & Wilkins, 2022) Kobat, Mehmet Ali; Dündar, Serkan; Bozoğlan, Alihan; Gelen, Mehmet Ali; Artas, Gökhan; Kırtay, Mustafa; Taşdemir, İsmail; Karasu, Mehdi; Habek, OsmanIn this study, the authors aim to investigate the effect of dual antiplatelet agents on peri-implant-guided bone regeneraation by studying a sample of rats with titanium implants in their tibias. The rats were randomly divided into 5 groups: acetylsalicylic acid (ASA) (n=10), treated with 20 mg/kg of ASA; ASA+CLPD (Clopidogrel): (n=10), treated with 20 mg/kg of ASA and 30 mg/kg of clopidogrel; ASA+PRSG (Prasugrel): (n=10), treated with 20 mg/kg of ASA and 15 mg/kg of prasugrel; ASA+TCGR (Ticagrelor): (n=10), treated with 20 mg/kg of ASA and 300 mg/kg of ticagrelor; and a control group (n=10) received no further treatment after implant surgery. Bone defects created half of the implant length circumferencial after implant insertion and defects filled with bone grafts. After 8 weeks experimental period, the rats sacrified and implants with surrounding bone tissues were collected to histologic analysis; bone filling ratios of defects (%) and blood samples collected to biochemical analysis (urea, creatinine, aspartate aminotransferase, alanine aminotransferase, phosphorus, magnesium, alkaline phosphatase, calcium, and parathormone). A statistically significant difference was not detected between the groups for all parameters (P>0.05). When the percentage of new bone formation was examined, it was found that there was no statistically significant difference between the groups (P>0.05). Antiplatelet therapy may not adversely affect guided bone regeneration in peri-implant bone defects.Öğe Effect of cleaning materials on microtensile bond strength of resin composite to primary dentin contaminated with root canal sealers(BioMed Central, 2023) Çakır, AsuBackground: There have been no studies on the bond strength of adhesives with dentin surfaces contaminated with root canal sealers in primary teeth without underlying permanent teeth germs. This study investigated the cleaning materials used for primary tooth dentin contaminated with root canal sealers. The aim was to increase the success rate of root canal treatment in pedodontics clinics and retain the teeth for longer. Methods: The occlusal enamel layer was removed, followed by the application of root canal sealers (AH Plus or MTA Fillapex) to the dentin and cleaning using different irrigation solutions (saline, NaOCl, and ethanol). The specimens were restored using a self-etch adhesive and composite. Sticks with a thickness of approximately 1 mm were obtained from each sample, and the bond strengths were measured using a microtensile testing device. The interfacial morphology of the bonded space was evaluated using scanning electron microscopy. Results: The control and AH Plus saline groups had the highest bond strengths. The groups cleaned using ethanol had the lowest bond strengths (p < 0.01). Conclusion: Cleaning the dentin with saline-soaked cotton pellets provided the best bond strengths. Therefore, saline is the most effective material for removing both epoxy resin- and calcium silicate-based root canal sealers from the access cavity.Öğe A novel method for measuring tooth angulation in permanent mandibular second molars with delayed tooth eruption(SAGE Publications, 2021) Soğancı, Ahmet Ertan; Akbulut, Ayşe Selenge; Şahin, GökçenObjective: To investigate the effect of angulation of permanent mandibular second molars (MM2) on eruption problems and investigate a new method of measuring MM2 angulation for the diagnosis and evaluation of delayed tooth eruption (DTE) for easy use in dental practice. Design: Retrospective study. Setting: Department of Orthodontics, Necmettin Erbakan University. Participants: A total of 98 patients aged 9-18 years. Methods: Patients with 64 permanent MM2s with delayed eruption problems were included in the study group. The control group consisted of patients with 83 normally erupted teeth. In addition, a sub-group, consisting of 23 patients showing unilaterally delayed eruption of the same teeth, was set as a split-mouth group. All patients with unilateral delayed eruption of second molar teeth were selected from the study group to form the sub-group. Angulations of permanent MM2s were measured on panoramic radiographs with two measurement methods: (1) a new method; and (2) a previously accepted method. The comparison of the study and control groups was performed by Mann-Whitney U-test and the split-mouth group was analysed with the paired t-test. The P value was set at 0.05 for statistical significance. Results: Measurements of the tooth angulation values of the study group were significantly higher than in the control group for both measurement methods (P < 0.001). In addition, in the split-mouth group, angulation values of delayed eruption side were significantly higher than the erupted side (P < 0.001). Conclusion: Increased angulations of permanent MM2s could be associated with delayed eruption problems of these teeth. This new method could be useful in clinical dentistry to determine the eruption evaluation of lower second molars.Öğe The attitude of dentists towards Covid-19 vaccination in Turkey: A survey study(Türkiye Klinikleri Yayınevi, 2022) Kaya, Doğan Ilgaz; Demirel, Mehmet Gökberk KaanCoronavirus disease-2019 (COVID-19) was announced as a global epidemic by the World Health Organization in March 2020. The vaccination program against the epidemic in Turkey started on January 13, 2021. Dentists can easily be exposed to viral spread due to their working conditions. However, the uncertainties in the course of the epidemic and the combination of social trends suggest that hesitation will increase against COVID-19 vaccines. We aimed to determine COVID-19 vaccine acceptance rate in dentists. Material and Methods: A new survey was created for dentists after the COVID-19 vaccination program. For the survey, 11 questions about COVID-19 were determined. The survey was conducted between April 1 and April 15, 2021. Results: Of the 467 individuals participating in the study, 293 (63.0%) were female and 172 (37.0%) were male. Among respondents, 421 (90.1%) subjects were vaccinated, 46 (9.9%) subjects refused to be vaccinated for some reasons. No statistically significant relationship was found between vaccination and age (p=0.138) and gender (p=0.322). It seems that there is no relationship between the vaccination status of the physicians and the place they work. Conslusion: Our study shows that dentists in Turkey participate heavily in vaccination. In order to prevent health services from interrupting and to control the epidemic, campaigns and programs should be made to inform the public.Öğe Konya ili ve çevresinde yaşayan 5-12 yaş grubu çocuklarda sosyodemografik düzey ile ağız-diş sağlığı durumunun değerlendirilmesi: Kesitsel araştırma(Türkiye Klinikleri Yayınevi, 2022) Çakır, AsuThe aim of this study was to determine the relationship between the sociodemographic status of a group of patients living in and around Konya and applied to the pedodontic clinic in terms of dental caries and to reveal the necessity of preventive treatment services with the results obtained. Material and Methods: The study was conducted as a questionnaire study evaluating the relationship between sociodemographic status and caries prevalence with the participation of 500 parents with children aged 5-12. Participation in the survey is voluntary, and the relationship between descriptive data and independent variables was evaluated with the chi-square test. Results: The dental health level was found to be better in the children of families with a high socio-demographic status. Caries were detected in 85.6% of the patients included in the study, and statistically significant differences were found between the education status of the parents, income level and the number of siblings of the children and the prevalence of caries. Conclusion: The relationship between sociodemographic status and dental health has developed in direct proportion. As a result, it is thought that it will be necessary to carry out studies to increase individual measures on dental health, which is closely related to the whole world.
