Duration of ultrasonic activation causing secondary fractures during the removal of the separated instruments with different tapers
Yükleniyor...
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SPRINGER HEIDELBERG
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Objectives The aim of the present study was to determine the effect of taper (.08, .06, and .04) of separated K3XF instruments on duration taken for the secondary fracture formation during ultrasonic activation. Materials and methods Ten 25/.08 K3XF (SybronEndo, Orange, CA, USA), ten 25/.06 K3XF, and ten 25/.04 K3XF instruments were used for the study. The apical 5 mm of the instruments was cut to simulate the fragments in root canals. Fragments of the instruments were sandwiched between two straight dentin blocks. An ultrasonic tip was used to cause a secondary fracture of the fragment. The time needed for the secondary fracture was recorded for each instrument. The data were statistically analyzed using the Kruskal-Wallis H test (alpha = 0.05). Results Secondary fractures occurred in all instruments. In the .08 taper group, secondary fractures took longer than in the case of the .06 and the .04 taper groups (P < 0.05). There were no significant differences between the .06 and the .04 taper groups in terms of the time required for the occurrence of a secondary fracture (P > 0.05). Conclusions In the .08 taper group, secondary fracture took longer time than in the case of the .06 and the .04 taper groups due to its larger cross-sectional area involved.
Açıklama
Anahtar Kelimeler
K3XF, Nickel titanium, Secondary fracture, Separated file, Taper, Ultrasonics
Kaynak
CLINICAL ORAL INVESTIGATIONS
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
24
Sayı
1
Künye
Arslan, H., Doğanay Yıldız, E., Taş, G. et al. (2020). Duration of ultrasonic activation causing secondary fractures during the removal of the separated instruments with different tapers. Clin Oral Invest 24, 351–355.
