Altı farklı glide path eğesinin vücut sıcaklığı simüle edilerek dinamik döngüsel yorgunluk dirençlerinin karşılaştırılması
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ege Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Amaç: Bu in vitro çalışmanın amacı; 6 farklı marka Ni-Ti glide path eğe sisteminin vücut sıcaklığı simüle edilerek dinamik döngüsel yorgunluk dirençlerini değerlendirmektir. Gereç ve Yöntem: Bu çalışmada ProTaper Ultimate Slider (16-0.2), ProGlider (16-0.2), HyFlex EDM (15-0.3), HyFlex EDM (10-0.5), WaveOne GoldGlider (15-0.2) ve Trunatomy Glider (17-0.2) giriş yolu eğelerinin her birinden 12 adet olmak üzere toplam 72 eğe kullanıldı. Üretici firmanın önerdiği dönüş hızı ve torku ile 90°'lik eğim açısı, 2 mm kurvatür yarıçapı ve 1.5 mm kanal iç çapına sahip yapay paslanmaz çelik kanallarda dinamik döngüsel yorgunluk deney düzeneğinde kırılıncaya kadar çalıştırıldı. Vücut sıcaklığını simüle etmek için test düzeneğinde termostat kullanıldı. Eğelerin kırılma zamanı video kayıt sistemi ve dijital kronometre ile eş zamanlı olarak kaydedildi ve kırılana kadar geçen süre hesaplandı. Kırılan parçaların uzunluğu bir dijital mikro kumpas ile belirlendi. Eğelerin kırılma tiplerini belirlemek için 12 adet kırık eğe, taramalı elektron mikroskobu (SEM) ile incelendi (n=2). Veriler Kruskal Wallis Varyans analizi ile değerlendirildi (p<0.05). Eğelerin sağ kalım sürelerini belirlemek için Weibull analizi yapıldı. Bulgular:Çalışmamızın istatiksel analiz sonuçlarına göre eğelerin kırılma süreleri arasındaki farklar anlamlı bulunmuştur.Kırılma süresi en az olan 66.08 ± 15.21 s ile Trunatomy Glider eğesidir.Kırılma süresi en fazla olan 1090.25 ± 260.65 ile ProGlider Glide Path eğesidir.HyFlex EDM 10/0.5 eğesi 141.91 ± 50.04 s, HyFlex EDM 15/0.3 545.16 ± 98.90 s , ProTaper Ultimate Slider 385.91 ± 87.89 s ve WGG 988.91 ± 182.18 s kırılma süresine sahiptir. İstatistiksel olarak Trunatomy Glider eğesi ile HyFlex EDM(10-0.5) eğesi arasında anlamlı bir fark yoktur.ProGlider ve WGG eğeleri arasında istatistiksel olarak anlamlı bir fak yok iken Trunatomy eğesi ile aralarında anlamlı fark bulunmuştur. ProTaper Ultimate Slider HyFlex EDM 15/03 eğeleri arasında istatistiksel olarak anlamlı bir fark yok iken ProGlider ile arasında anlamlı bir fark bulunmuştur. HyFlex EDM (15-03) ve (10-0.5) eğeleri arasında kırılmaya kadar geçen süreleri arasında anlamlı fark bulunmuştur. Çalışmamıza göre kırık parçaların ortalama uzunlukları ölçüldüğünde 6 grup arasında anlamlı bir fark bulunmadı. Kırılan parça ortalama uzunluğu 3.95 mm ile en fazla olan HyFlex EDM (10-0.5) tir ve en az olan 3.17 mm ile TruNatomy Glider path eğesidir. Sırasıyla HyFlex EDM (15-0.3), ProTaper Ultimate Slider, ProGlider ve WGG'nin kırılan parça uzunlukları 3,49 mm, 3,70 mm, 3,20 mm ve 3,45 mmdir. Ayrıca SEM kullanılarak yapılan kırık yüzeylerin analizi ile kırılmaların döngüsel yorgunluk sonucu oluştuğu belirlenmiştir. Sonuç: Çalışmamıza göre üretim şekilleri, alaşımın özellikleri, eğenin uç çapı, eğenin koniklik açısı ve eğelerin kanal içi sıcaklıkta hangi fazda bulundukları gibi faktörler eğelerin döngüsel yorgunluk direncini etkilediği gözlendi.
Aim: The aim of this in vitro study was to evaluate the dynamic cyclic fatigue resistance of 6 different brands of Ni-Ti glide path file systems under simulated body temperature conditions. Materials and Methods: In this study, a total of 72 files were used, with 12 files from each of the ProTaper Ultimate Slider (16-0.2), ProGlider (16-0.2), HyFlex EDM (15-0.3), HyFlex EDM (10-0.5), WaveOne GoldGlider (15-0.2), and Trunatomy Glider (17-0.2) entry path files. The files were operated until fracture in artificial stainless steel canals with a 90° curvature, 2 mm curvature radius, and 1.5 mm inner canal diameter, using the manufacturer's recommended rotation speed and torque. A thermostat was used in the testing apparatus to simulate body temperature. The time of file fracture was recorded simultaneously with a video recording system and a digital chronometer, and the elapsed time until fracture was calculated. The length of the broken fragments was determined using a digital micrometer. To determine the types of file fractures, 12 fractured files were examined using scanning electron microscopy (SEM) (n=2). Data were evaluated using Kruskal-Wallis analysis of variance (p<0.05). Weibull analysis was performed to determine the survival times of the files. Results:According to the statistical analysis results of our study, significant differences were found among the fracture times of the files. The file with the shortest fracture time was Trunatomy Glider, with 66.08±15.21 seconds. The file with the longest fracture time was ProGlider Glide Path, with 1090.25±260.65 seconds. HyFlex EDM (10-0.5) had a fracture time of 141.91±50.04 seconds, HyFlex EDM (15-0.3) had a fracture time of 545.16±98.90 seconds, ProTaper Ultimate Slider had a fracture time of 385.91±87.89 seconds, and WGG had a fracture time of 988.91±182.18 seconds. Statistically, there was no significant difference between Trunatomy Glider and HyFlex EDM (10-0.5) files. There was no statistically significant difference between ProGlider and WGG files, but there was a significant difference between Trunatomy Glider and ProGlider files. There was no statistically significant difference between ProTaper Ultimate Slider and HyFlex EDM 15/0.3 files, but there was a significant difference between ProGlider and ProTaper Ultimate Slider files. There was a significant difference in the time until fracture between HyFlex EDM (15-0.3) and (10-0.5) files. According to our study, there was no significant difference in the average lengths of the broken fragments among the six groups. The file with the longest average length of broken fragments was HyFlex EDM (10-0.5) at 3.95 mm, and the file with the shortest average length was TruNatomy Glider path at 3.17 mm. The respective average lengths of broken fragments for HyFlex EDM (15-0.3), ProTaper Ultimate Slider, ProGlider, and WGG were 3.49 mm, 3.70 mm, 3.20 mm, and 3.45 mm. Furthermore, analysis of the broken surfaces using SEM revealed that the fractures were a result of cyclic fatigue. Conclusion: According to our study, factors such as manufacturing methods, alloy properties, file tip size, file taper angle, and the phase at which the files are present in the canal at body temperature affect the cyclic fatigue resistance of the files.
Aim: The aim of this in vitro study was to evaluate the dynamic cyclic fatigue resistance of 6 different brands of Ni-Ti glide path file systems under simulated body temperature conditions. Materials and Methods: In this study, a total of 72 files were used, with 12 files from each of the ProTaper Ultimate Slider (16-0.2), ProGlider (16-0.2), HyFlex EDM (15-0.3), HyFlex EDM (10-0.5), WaveOne GoldGlider (15-0.2), and Trunatomy Glider (17-0.2) entry path files. The files were operated until fracture in artificial stainless steel canals with a 90° curvature, 2 mm curvature radius, and 1.5 mm inner canal diameter, using the manufacturer's recommended rotation speed and torque. A thermostat was used in the testing apparatus to simulate body temperature. The time of file fracture was recorded simultaneously with a video recording system and a digital chronometer, and the elapsed time until fracture was calculated. The length of the broken fragments was determined using a digital micrometer. To determine the types of file fractures, 12 fractured files were examined using scanning electron microscopy (SEM) (n=2). Data were evaluated using Kruskal-Wallis analysis of variance (p<0.05). Weibull analysis was performed to determine the survival times of the files. Results:According to the statistical analysis results of our study, significant differences were found among the fracture times of the files. The file with the shortest fracture time was Trunatomy Glider, with 66.08±15.21 seconds. The file with the longest fracture time was ProGlider Glide Path, with 1090.25±260.65 seconds. HyFlex EDM (10-0.5) had a fracture time of 141.91±50.04 seconds, HyFlex EDM (15-0.3) had a fracture time of 545.16±98.90 seconds, ProTaper Ultimate Slider had a fracture time of 385.91±87.89 seconds, and WGG had a fracture time of 988.91±182.18 seconds. Statistically, there was no significant difference between Trunatomy Glider and HyFlex EDM (10-0.5) files. There was no statistically significant difference between ProGlider and WGG files, but there was a significant difference between Trunatomy Glider and ProGlider files. There was no statistically significant difference between ProTaper Ultimate Slider and HyFlex EDM 15/0.3 files, but there was a significant difference between ProGlider and ProTaper Ultimate Slider files. There was a significant difference in the time until fracture between HyFlex EDM (15-0.3) and (10-0.5) files. According to our study, there was no significant difference in the average lengths of the broken fragments among the six groups. The file with the longest average length of broken fragments was HyFlex EDM (10-0.5) at 3.95 mm, and the file with the shortest average length was TruNatomy Glider path at 3.17 mm. The respective average lengths of broken fragments for HyFlex EDM (15-0.3), ProTaper Ultimate Slider, ProGlider, and WGG were 3.49 mm, 3.70 mm, 3.20 mm, and 3.45 mm. Furthermore, analysis of the broken surfaces using SEM revealed that the fractures were a result of cyclic fatigue. Conclusion: According to our study, factors such as manufacturing methods, alloy properties, file tip size, file taper angle, and the phase at which the files are present in the canal at body temperature affect the cyclic fatigue resistance of the files.
Açıklama
Anahtar Kelimeler
Diş Hekimliği, Dentistry
