Genişletilmiş apikal foramenlere sahip dişlerde multi-frekans elektronik apeks bulucuların doğruluğunun karşılaştırılması: ex vivo

Yıl 2018, , 17 - 22, 24.09.2017

Mügem Aslı Ekici Bağdagül Helvacıoğlu Kıvanç , Adil Ekici

https://doi.org/10.17214/gaziaot.315396

Öz

Amaç: Bu çalışmanın amacı, farklı
çaplarda apikal foramenlere sahip dişlerde yeni geliştirilmiş multi-frekans elektronik
apeks bulucu iPex II ile üç farklı multi-frekans elektronik apeks bulucunun
doğruluğunun karşılaştırılmasıdır.

Gereç ve Yöntem: Çalışmada 26 adet çekilmiş
alt çene küçük azı dişi kullanıldı. Dişlerin kronlarının uzaklaştırılmasından
sonra kök kanalları koronal olarak genişletildi. Gerçek çalışma boyu tespiti,
#15 K-tipi eğenin ucu apikal foramende görünür hale gelene kadar ilerletilerek
yapıldı. Gerçek çalışma boyu, lastik stoper ve eğe arasındaki uzunluktan 0.5 mm kısa olarak kabul
edildi. ProTaper F1, F2 ve F3 (Dentsply Maillefer) eğeler ile apikal açıklıktan 1
mm ilerde taşkın preparasyonlar yapıldı. Dişler,
koronal 5 mm’leri açıkta kalacak şekilde aljinat ile teflon kalıplara gömüldü.
Raypex 5 (VDW), Raypex 6 (VDW), iPex (NSK Inc.) ve iPex II (NSK Inc.)
elektronik apeks bulucular kullanılarak elektronik çalışma boyu ölçümleri
yapıldı. Elektronik ve gerçek çalışma boyları arasındaki farklar hesaplandı.
Elektronik apeks bulucuların doğruluklarının istatistiksel değerlendirmesinde
tek yönlü varyans analizi (ANOVA) kullanıldı (α=0.05).

Bulgular: Gruplar-arası
karşılaştırmada, elektronik apeks bulucuların doğrulukları arasında
istatistiksel olarak anlamlı farklılık görülmedi (p>0.05). Grup-içi
karşılaştırmada, farklı apikal foramen çaplarına göre elektronik apeks
bulucuların doğrulukları arasında yine istatistiksel olarak anlamlı farklılık
görülmedi (p>0.05).

Sonuç: Apikal
foramenleri genişletilmiş dişlerde, iPex II ve diğer elektronik apeks
bulucuların çalışma boyu ölçümleri arasında farklılık olmadığı görüldü. Kullanılan
tüm elektronik apeks bulucuların çalışma boyu ölçümlerinin klinik olarak kabul
edilebilir olduğu bulundu.

Anahtar Kelimeler

Apikal foramen, dişler, kök kanal tedavisi

Comparison of the accuracies of multi-frequency electronic apex locators in teeth with enlarged apical foramina: ex vivo

Öz

Objective: The aim of this study was to compare the accuracy
of a newly developed multi-frequency electronic apex locator iPex II with three
different multi-frequency electronic apex locators in teeth with different
sizes of apical foramina.

Materials and Method: Twenty-six extracted mandibular
premolars were used in this study. The teeth were decoronated, and the root
canals were coronally flared. Actual working length was determined by inserting
a #15 K-file until the tip was visualized just within apical foramen. Actual
working length was established 0.5
mm short of the distance between the rubber stopper and
the file tip. Using Protaper F1, F2 and F3 files (Dentsply Maillefer),
over-instrumentation 1 mm
beyond the apical foramen was done. The teeth were embedded in teflon molds
with alginate exposing the coronal 5
mm. Electronic working length measurements were done by
using Raypex 5 (VDW), Raypex 6 (VDW), iPex (NSK Inc.) and iPex II (NSK Inc.)
electronic apex locators. Differences between the electronic and actual working
lengths were calculated. One-way analysis of variance (ANOVA) was used for the
statistical analysis of the accuracies of the electronic apex locators (α=0.05).

Results: Inter-group comparisons revealed that
there was no statistically significant difference between the accuracies of the
different electronic apex locators (p>0.05). Intra-group comparisons also
revealed that there was no statistically significant difference between
different apical foramen sizes (p>0.05).

Conclusion: iPex II and the other electronic apex locators
provided similar endodontic working length measurements in teeth with enlarged
apical foramina. All electronic apex locators tested in this study were found
clinically acceptable for working length determination.

Anahtar Kelimeler

Apical foramen, root canal therapy, teeth

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