Yazar "Terlemez, Arslan" seçeneğine göre listele
Listeleniyor 1 - 13 / 13
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe AH Plus’ın geleneksel yöntem ya da PIPS aktivasyonu ile uygulanan yıkama solüsyonlarıyla muamele edilmiş kök dentini yüzeyini ıslatabilirliği(2018) Akbulut, Makbule Bilge; Terlemez, Arslan; Batıbay, Ahmet BurçinAmaç: Bu in vitro çalışmanın amacı; epoksi rezin içerikli kökkanal patının (AH Plus) sodyum hipoklorit (NaOCl), klorheksidin glukonat (CHX), etilendiamintetraasetik asit (EDTA) yıkama solüsyonlarının geleneksel yöntemle ya da foton indüklüfotoakustik dalgalanma (PIPS) aktivasyon tekniğiyle uygulandığı dentin yüzeyini ıslatabilirliğini değerlendirmektir. Gereç ve Yöntem: Bu çalışma için 60 adet tek köklü diş hazırlandı ve dişler silikon ölçü maddesi içerisine sabitlendi. Silikonsertleştikten sonra dişler bukkolingual yönde dikey olarak ikiparçaya ayrıldı. Bir yarım diş örneği tekrar silikon içerisine yerleştirildi. Örnekler 6 deney grubuna ayrıldı (n10) ve şu yıkama prosedürleri uygulandı: Grup 1, NaOCl; Grup 2, CHX; Grup3, EDTA; Grup 4, NaOClPIPS; Grup 5, CHXPIPS; Grup 6, EDTAPIPS. İşlem görmeyen diğer yarım diş örneklerinden rastgele seçilen 10 tanesi kontrol grubu olarak kullanıldı ve distilesu içerisinde bekletildi. Bir damla kök kanal patı her bir kuru dentin yüzeyine damlatıldı. Kanal patı ve kök dentini arasındaki temas açısı dinamik temas açısı ölçüm cihazıyla belirlendi. Veriler, tek yönlü varyans analizi ile istatistiksel olarak analiz edildi. Bulgular: Ortalama temas açısı değerleri NaOCl grubunda60.93, CHX grubunda 57.77, EDTA grubunda 64,61 olup deney grupları ve kontrol grubunun temas açıları arasında istatistiksel olarak anlamlı fark bulunmamıştır (p0,05). Yıkamasolüsyonlarının PIPS ile aktivasyonu AH Plus’ın ıslatma davranışını değiştirmemiştir (p 0,05). Sonuç: Bu in vitro çalışmanın sınırları dahilinde yıkama solüsyonunun türü ve uygulama metodu AH Plus’ın ıslatma davranışını etkilememiştir.Öğe Comparison of cone-beam computed tomography and panoramic radiography in the evaluation of maxillary sinus pathology related to maxillary posterior teeth: Do apical lesions increase the risk of maxillary sinus pathology?(Korean Acad Oral & Maxillofacial Radiology, 2019) Terlemez, Arslan; Tassoker, Melek; Kizilcakaya, Makbule; Gulec, MelikePurpose: The aims of this study were first, to compare panoramic radiography with cone-beam computed tomography (CBCT) for evaluating topographic relationships, such as the classification of maxillary posterior teeth and their distance to the maxillary sinus floor; and second, to determine the relationship between maxillary sinus pathology and the presence of apical lesions. Materials and Methods: In total, 285 paired CBCT and panoramic radiography records of patients (570 maxillary sinuses) were retrospectively analyzed. Both imaging modalities were used to determine the topographic relationship of the maxillary posterior teeth to the sinus floor. Mucosal thickening > 2 mm was considered a pathological state. Data were analyzed using the chi-square, Wilcoxon, and Mann-Whitney U tests. Odds ratios (ORs) and confidence intervals (CIs) were calculated. Results: The closest vertical distance measurements made between posterior maxillary teeth roots and the maxillary sinus on panoramic radiography and CBCT scans showed statistically significant differences from each other (P<0.05). Compared to panoramic radiography, CBCT showed higher mean values for the distance between the maxillary sinus floor and maxillary posterior teeth roots. The CBCT images showed that at least 1 apical lesion adjacent to the right maxillary sinus increased the risk of maxillary sinus pathology by 2.37 times (OR, 2.37; 95% CI, 1.58-3.55, P<0.05). Conclusion: Panoramic radiography might lead to unreliable diagnoses when evaluating the distance between the sinus floor and posterior roots of the maxillary teeth. Periapical lesions anatomically associated with maxillary sinuses were a risk factor for sinus mucosal thickening.Öğe Comparison of the pull-out bond strength of endodontically treated anterior teeth with monolithic zirconia endocrown and post-and-core crown restorations(Nihon University, School of Dentistry, 2023) Bozkurt, Durmuş A.; Büyükerkmen, Emine Begüm; Terlemez, ArslanPurpose: The purpose of this study was to assess the pull-out bond strength (PBS) of endodontically treated anterior teeth that had been restored with monolithic zirconia endocrowns using different extension depths (EDs) and post-and-core crowns after chewing simulation.Methods: Thirty-six maxillary central teeth were used (n = 12). Group I: Glass fiber post-and-core crown, Group II: Endocrown with 3-mm EDs, Group III: Endocrown with 5-mm EDs. Restorations were fabricated from monolithic zirconia blocks using a CAM (computer-aided manufacturing) device. For cementation, conventional resin luting agent (Multilink N) was used. All samples were aged with a chewing simulator and PBS tests were conducted at a speed of 1 mm/min using an electromechanical servo universal testing machine. The values were recorded in MPa by dividing the failure load by the bonding area. One-way ANOVA and the post-hoc Tukey test were used for statistical analysis (P = 0.05).Results: Group III demonstrated significantly greater PBS values than Groups I and II (P = 0.001). No significant difference was found between Groups I and II (P = 0.072).Conclusion: Increasing the ED of an endocrown influences the PBS of endodontically treated anterior teeth restored with monolithic zirconia endocrowns.Öğe Dentinal tubule penetration of endodontic sealers after nonthermal plasma treatment: A confocal laser scanning microscopy study(Wiley, 2019) Gunes, Betul; Yeter, Kubra Y.; Terlemez, Arslan; Seker, Basak; Altay, YasinOne of the factors affecting the success of endodontic treatment is to fill the root canal system hermetically. The aim of this in vitro study was to evaluate the effect of nonthermal plasma (NP) on dentinal tubule penetration of root canal sealers using confocal laser scanning microscopy. Forty mandibular premolar teeth were selected and the root canals were prepared with large-Waveone-Gold rotary-files. Specimens were divided into four experimental groups according to sealer and NP treatment (n = 10). G1: AH-Plus (AH) G2: nonthermal plasma application + AH-Plus(AH-P) G3: Endosequence-BC(BC) G4: nonthermal plasma application + Endosequence-BC(BC-P). Cold lateral-condensation technique was used for the obturation of root canals. The roots were sectioned horizontally and the sections were examined under confocal laser scanning microscopy. The maximum tubule penetration and percentage of penetration values were obtained from the microscopy images and were statistically analyzed with repeated measurements-ANOVA and the Tukey (HSD) test (p < 0.05). The percentages of dentinal tubule penetration of the groups were not statistically different. The maximum tubule penetration of the AH-P was statistically lower than that of the BC-P (p < 0.05). Plasma application had no affect on the percentage of dentinal tubule penetration. Under the conditions of this in vitro Endosequence-BC sealer showed higher maximum tubule penetration values than AH-Plus after NP treatment. Percentage of dentinal tubule penetration values of experimental groups was similar.Öğe Does the Photon-Induced Photoacoustic Streaming Activation of Irrigation Solutions Alter the Dentin Microhardness?(Mary Ann Liebert, Inc, 2019) Akbulut, Makbule Bilge; Terlemez, ArslanObjective: The aim of this in vitro study was to evaluate the efficacy of photon-induced photoacoustic streaming (PIPS) activation of sodium hypochlorite (NaOCl), chlorhexidine (CHX) or ethylenediaminetetraacetic acid (EDTA) on the dentin microhardness and to assess the compositional changes of root dentin. Background data: It is still unclear whether PIPS activation of irrigants alters the dentin microhardness and mineral content of dentin. Materials and methods: Root canals of 72 extracted single-rooted teeth were prepared and teeth were fixed in microcentrifuge tubes with silicone impression material. After setting of the silicone, teeth were removed and split longitudinally in buccolingual direction. One half was used as control (pretreatment) while the other was placed into the tube (posttreatment). Then specimens were divided into six test groups (three with and three without PIPS activation). The irrigants tested were 2.5% NaOCl, 17% EDTA, and 2% CHX. Experimental tooth specimens were irrigated with 6 mL of test solution, with additional PIPS activation applied to the PIPS groups. Then specimens were subjected to Vickers microhardness testing. Percentage change of microhardness was calculated. Energy dispersive X-ray spectroscopy (SEM-EDX) was performed to measure element content. Results: Among the irrigant-alone groups, NaOCl and CHX did not alter the dentin microhardness, whereas statistically lower microhardness values were obtained in EDTA group. Chemical composition of dentin was affected from all irrigants used. PIPS activation led to no additional alteration in dentin microhardness. PIPS significantly increased the phosphorus level in NaOCl group. Conclusions: Dentin microhardness was significantly affected by the irrigation solution, not by the PIPS activation.Öğe The effect of Nd:YAG laser irradiation on root surface: shear-bond strength and SEM-EDX study(Taylor & Francis Ltd, 2015) Akman, Melek; Celik, Kezban; Ozcopur, Betul; Terlemez, ArslanTo investigate the effects of Nd:YAG laser and 17% EDTA treatment on root-dentin mineral content using scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDX) and on shear-bond strength of epoxy-resin-based sealer (AH Plus) to root dentin. Twelve extracted premolars were decoronated and roots were sectioned, so that 24 two-root halves were obtained. Element levels of each half were examined by SEM/EDX, and AH Plus build-ups were created. After shear-testing, the test surfaces were reground and subjected to a 5.25% NaOCl. Two subgroups were created according to the surface treatment (n=12): G1, with 17% EDTA for 5min; G2, with the Nd:YAG laser. The element level analysis and shear-bond strength test were repeated for each half; the data were recorded (MPa) and analyzed (paired samples t-test). The EDTA treatment increased the O, C, Ca/P ratio (p<0.001), decreased Ca, P content (p=0.000), but did not change Na, Mg content (p>0.05). The Nd:YAG laser increased O, Ca/P ratio (p<0.001), and decreased the Ca, P content (p=0.000). The C, Mg, Na content did not change with the Nd:YAG laser (p>0.05). Both 17% EDTA and Nd:YAG laser had an effect on the mineral content of roots. The 17% EDTA treatment decreased the shear-bond strength of AH Plus to root dentin (p=0.000); however, the Nd:YAG laser did not affect the bond strength (p=0.238). Thus, an Nd:YAG laser can be used for disinfection of the root canal when AH Plus is used as a sealer.Öğe Effect of various mineral acids during the hydrothermal leaching process of NiTi Alloy(Pamukkale Univ, 2023) Ozgun, Muhammed Ihsan; Batibay, Ahmet Burcin; Unal, Bayram; Eker, Yasin Ramazan; Terlemez, ArslanNickel and titanium-based alloys are commonly used for engineering or medical applications. NiTi alloys are recycled as additive materials at the end of their lifetime. Separate recovery of metals present in NiTi alloy is possible via hydrometallurgical methods; however, NiTi alloys are highly resistant to corrosion. Various mineral acids (H2SO4, HCl, HNO3, H3PO4) have been investigated, and the effect of H2O2 in the leaching medium has also been explored. Different leaching yields have been observed, and correlations between them according to acid treatment conditions have been established. SEM, XRF, and EDS techniques characterized alloys' microstructure and chemical properties. Among mineral acids, H2SO4 and HCl illustrated the highest extraction efficiencies. However, the addition of hydrogen peroxide decreased this efficiency severely. The kinetics of dissolution was obtained through decreased leaching efficiency with the addition of hydrogen peroxide.Öğe Efficacy of Twisted File Adaptive, Reciproc and ProTaper Universal Retreatment instruments for root-canal-filling removal: A cone-beam computed tomography study(Japanese Soc Dental Materials Devices, 2016) Akbulut, Makbule Bilge; Akman, Melek; Terlemez, Arslan; Magat, Guldane; Sener, Sevgi; Shetty, HeereshThe aim of this study was to evaluate the efficacy of Twisted File (TF) Adaptive, Reciproc, and ProTaper Universal Retreatment (UR) System instruments for removing root-canal-filling. Sixty single rooted teeth were decoronated, instrumented and obturated. Preoperative CBCT scans were taken and the teeth were retreated with TF Adaptive, Reciproc, ProTaper UR, or hand files (n=15). Then, the teeth were rescanned, and the percentage volume of the residual root-canal-filling material was established. The total time for retreatment was recorded, and the data was statistically analyzed. The statistical ranking of the residual filling material volume was as follows: hand file=TF Adaptive>ProTaper UR=Reciproc. The ProTaper UR and Reciproc systems required shorter periods of time for retreatment. Root canal filling was more efficiently removed by using Reciproc and ProTaper UR instruments than TF Adaptive instruments and hand files. The TF Adaptive system was advantageous over hand files with regard to operating time.Öğe Evaluation of the Periodontal Disease Effect on Pulp Volume(Elsevier Science Inc, 2018) Terlemez, Arslan; Alan, Raif; Gezgin, OnurIntroduction: The success of periodontal and endodontic treatments depends on the total recovery from both conditions regardless of their occurrence as independent or combined lesions. There is strong presumptive evidence that teeth with periodontal disease may cause pulpal inflammation and degeneration. Therefore, the goal of this study was to establish a correlation between periodontitis and pulp volume. Methods: Thirty-four dental images from 17 patients obtained by cone beam 'computed tomography were analyzed by medical software to create three-dimensional images. Paired t test analysis was used for statistical analysis. Results: The statistical analysis showed that periodontitis had a significant effect on the volume and surface areas of the dental pulp (P <.05). Conclusions: The findings of this study showed that periodontitis causes pulp volume to reduce by approximately 20%. The use of three-dimensional models provides better understanding of the dental anatomy before endodontic treatment and, consequently, improvement of treatment outcomes. Additional studies are needed to investigate the effect of periodontal disease on pulp volume and surface area.Öğe Kalan kron miktarının ve iki farklı fiber-post sistemlerinin endodontik tedavili dişlerin kırılma dayanımları üzerine etkisi(2016) Çelebi, Hakkı; Terlemez, Arslan; Büyükerkmen, Emine Begüm; Ünlü, Nimet; Korkut, EmreKalan kron miktarının ve iki farklı fiber-post sistemlerinin endodontik tedavili dişlerin kırılma dayanımları üzerine etkisi Amaç: Bu in-vitro çalışmanın amacı iki farklı cam fiber-post sistemiyle restore edilen endodontik tedavi görmüş mandibular premolar dişlerde 2 mm yüksekliğinde kron varlığının ya da yokluğunun, dişlerin kırılma dayanımına etkisini araştırmaktır. Gereç ve Yöntemler: Endodontik tedavi görmüş 56 adet yeni çekilmiş tek köklü insan premolar dişi rastgele 2 gruba ayrıldı. Bir grupta dişler mine-sement birleşim yerinden kesildi. Diğer grup mine-sement birleşiminin 2 mm yukarısından kesildi. Gruplar iki alt gruba ayrıldı. GC ve Glassix olmak üzere iki farklı cam fiber post sitemi kök kanallarına simante edildi (n14). Simantasyon işlemi çift aşamalı polimerize olan rezin siman (Panavia SA Cement Plus Automix , Kuraray Noritake Dental Inc., Japonya) ile gerçekleştirildi ve dişlerin koronal kısmı kompozit rezin kor materyali (Estelite Posterior, Tokuyama Dental Corp., Tokyo, Japonya) ile restore edildi. Daha sonra dişlerin üst yapısı metal destekli seramik sistemle restore edildi. Her bir numune akrilik rezin içerisine gömüldü ve üniversal bir yükleme test cihazına monte edildi. Dişin uzun aksına 135 derece açı ile 1 mm/dk piston hızıyla kırık oluşuncaya kadar yük uygulandı. Kırık tipleri X20 büyütmeli ışık mikroskobu altında incelenerek, tamir edilebilir ve tamir edilemez olarak sınıflandırıldı. Elde edilen verilerin istatistiksel analizleri Two Way ANOVA ve Tukey HSD testleri vasıtasıyla gerçekleştirildi. Bulgular: Endodontik tedavi görmüş dişlerin kırılma direnci üzerinde bu çalışmada kullanılan post sistemlerinin ve kron yüksekliklerinin önemli derecede etkilendiği görülmüştür (p0.000). En yüksek kırılma dayanımının Glassix cam fiber post uygulanan ve 2 mm kron varlığı olan grupta olduğu görülmüştür. Sonuç: Her iki cam fiber post sistemi uygulamasında, 2 mm kron varlığının olması dişlerin kırılma dayanımını arttırıcı etki ortaya koymuştur.Öğe Majewski osteodysplasic primordial dwarfısm type II: Clinical findings and dental management of a child patient(2015) Terlemez, Arslan; Altunsoy, Mustafa; Çelebi, HakkıMikrosefalik osteodisplastik primordial cücelik tip II (MOPCII), küçük kafa ölçüleri ile doğum ve ilerleyen ciddi mikrosefali, ilerleyen kemik displazisi ve tipik yüz ve kişilik farklılıkları ile karakterize, otozomal çekinik olarak aktarılan ve nadir görülen bir cücelik tipidir. Bu olgu sunumunda, MOPC II sendromlu beş yaşında bir kız bildirilmektedir. Hasta, kliniğimize sol mandibular molar süt dişlerde şiddetli diş ağrısı ile başvurdu. Klinik incelemede birçok süt dişinin çürük olduğu ve dişlerin hipoplastik olduğu görüldü. Sol alt süt molar dişler köksüz olduğu için tedavi edilmesi mümkün değildi ve bu dişler çekildi. MOPC II sendromlu hastaların dişlerinin doğru ve zamanında değerlendirilmesi, bu hastalarda dişsel problemlerin önlenebilmesi ve ağız sağlığının sürdürülebilmesi için büyük önem taşımaktadır.Öğe Proton Nuclear Magnetic Resonance Spectroscopy Analysis of Mixtures of Chlorhexidine with Different Oxidizing Agents Activated by Photon-Induced Photoacoustic Streaming for Root Canal Irrigation(Mary Ann Liebert, Inc, 2020) Buyukozer Ozkan, Hatice; Terlemez, Arslan; Orhan, Ekim OnurObjective: The aim of this in vitro study was to investigate the possible interactions between photon-induced photoacoustic streaming (PIPS (TM))-activated oxidizing agents and 2% chlorhexidine digluconate. Background data: There is no information about the safety of laser-activated oxidizing agents in combination usage with chlorhexidine gluconate. Materials and methods: Groups were designed as follows G1: 98% para-chloroaniline (PCA); G2: 2% chlorhexidine (CHX); G3: 5.25% sodium hypochlorite (NaOCl) +2% CHX; G4: 5.25% NaOCl (30 sec PIPS activated) +2% CHX; G5: 5.25% NaOCl (60 sec PIPS activated) +2% CHX; G6: 3.5% chlorine dioxide (ClO2) + 2% CHX; G7: 3.5% (ClO2) (30 sec PIPS activated) +2% CHX; G8: 3.5% (ClO2) (60 sec PIPS activated) +2% CHX. The laser-irrigation protocol was performed with an erbium:yttrium-aluminum-garnet laser with a wavelength of 2940 nm equipped with a 140 mm long endodontic fiber tip (PIPS) using 10 mJ at 15 Hz (0.15 W), per pulse operating outputs. Groups were analyzed with proton nuclear magnetic resonance spectroscopy, using PCA as an internal standard. Results: No free PCA was formed in any groups of mixtures or after PIPS activation. Conclusions: Mixing of 3.5% ClO2 and 2% CHX does not form bulky precipitates, unlike the mixture NaOCl + CHX. PIPS activation does not cause changes in reactions of oxidizing agents.Öğe Tooth discoloration effects of calcium silicate based barrier materials used in revascularization and treatment with internal bleaching(Elsevier Taiwan, 2017) Akbulut, Makbule Bilge; Terlemez, Arslan; Akman, Melek; Buyukerkmen, Begum; Guneser, Mehmet Burak; Eldeniz, Ayce UnverdiBackground/purpose: Usage of barrier materials is an important step in revascularization procedure. One of the undesired properties of these barrier materials is to cause coronal tooth discoloration. The aim of this in vitro study was to evaluate the tooth discoloration induced by ProRoot MTA (PMTA), Biodentine, and MM-MTA, as well as the efficacy of internal bleaching on this discoloration. Materials and methods: Forty-two maxillary incisor teeth were prepared. Triple antibiotic paste (TAP) was placed in the root canals and incubated for 3 weeks. After removing the TAP, blood embedded spongostans were inserted into the root canals, and PMTA, Biodentine, or MM-MTA was placed over them. The teeth were incubated for 4 weeks at 37 degrees C; then, the internal bleaching agent was sealed for one week. The tooth color was measured throughout the study and the color change values (Delta E) of each specimen were calculated, and the data was statistically analyzed using the one-way ANOVA and Tamhane's T2 tests. Results: The TAP significantly decreased the luminosity of the teeth (p < 0.05); however, no significant differences were observed between the tooth discolorations induced by the PMTA, Biodentine, and MM-MTA (p > 0.05). The teeth in the Biodentine group were more whitened than those of the PMTA and MM-MTA groups (p < 0.05). Conclusion: Although the PMTA, Biodentine, and MM-MTA caused similar color alterations in the teeth, more bleaching was observed on those teeth discolored using TAP + blood + Biodentine. (C) 2017 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V.
