Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
Accuracy of Four Different Apex Locators in Primary Molars: An In Vitro Study
Süt Molarlarda Dört Farklı Apeks Bulucunun Doğruluğu: Bir İn Vitro Çalışma
Ebru AKLEYİNa, Merve YENİÇERİ ÖZATAb , Sadullah KAYAb
aDepartment of Pediatric Dentistry, Dicle University Faculty of Dentistry, Diyarbakır, Türkiye
bDepartment of Endodontics, Dicle University Faculty of Dentistry, Diyarbakır, Türkiye
Turkiye Klinikleri J Dental Sci. 2023;29(2):270-6
doi: 10.5336/dentalsci.2022-93044
Article Language: EN
Full Text
ABSTRACT
 Objective: The aim of this study is to compare and evaluate the accuracy of 4 different electronic apex locators (EALs) (Root ZX Mini, Raypex 6, Propex Pixi, and E-Pex Pro) in primary molars with
and without root resorption. Material and Methods: Forty-eight mandibular primary molar teeth with (24 teeth) and without (24 teeth) physiological root resorption, each with 4 root canals, were included in the study (96 canals in with resorption group and 96 canals in without resorption group) (n=192 root canals). The actual working length (AWL) was determined by subtracting 0.5 mm from the measured length for each canal. The differences between AWL and electronic working length readings of the 4 EALs and accuracy rates within specified tolerance intervals (TI; ±0.5 and ±1.0 mm) were calculated. Results: The presence of resorption in the teeth significantly affected the measurement using Root ZX Mini (p<0.05). In teeth without resorption, all EALs yielded an accuracy rate of 100% at ±1.0 mm TI, whereas the accuracy rates ranged from 91.7% to 95.8% at ±0.5 mm TI. In teeth with resorption, EALs yielded accuracy rates of 74.0%-65.6% at ±1.0 mm TI and 52.1%- 60.4% at ±0.5 mm TI. Conclusion: At ±0.5 mm TI, Raypex 6 had greater accuracy in teeth without root resorption, whereas Propex Pixi had greater accuracy in teeth with root resorption. Apex locator preference may vary depending on the presence or absence of resorption.

Keywords: Primary tooth; electronic apex locator; working length; pediatric endodontics
ÖZET
 Amaç: Bu çalışmanın amacı, kök rezorpsiyonu olan ve olmayan süt azı dişlerinde 4 farklı elektronik apeks bulucunun (EAB) (Root ZX Mini, Raypex 6, Propex Pixi ve E-Pex Pro) doğruluğunu karşılaştırmak ve değerlendirmektir. Gereç ve Yöntemler: Fizyolojik kök rezorpsiyonu olan (24 diş) ve olmayan (24 diş), her biri 4 kanallı 48 mandibular süt molar diş çalışmaya dâhil edildi (96 kanal rezorpsiyon grubu için ve 96 kanal rezorpsiyon bulunmayan grup için) (n=192 kök kanalı). Gerçek çalışma uzunluğu (GÇU), her kanal için ölçülen uzunluktan 0,5 mm çıkarılarak belirlendi. Dört apeks bulucunun, GÇU ve elektronik çalışma uzunluğu okumaları arasındaki farklar ve belirtilen tolerans aralıkları (TA; ±0,5 ve ±1,0 mm) dâhilindeki doğruluk oranları hesaplandı. Bulgular: Dişlerde rezorpsiyon varlığı, Root ZX Mini kullanılarak yapılan ölçümü önemli ölçüde etkiledi (p<0,05). Rezorpsiyonsuz dişlerde, tüm EAB'ler ±1,0 mm TA'da %100 doğruluk oranı sağlarken, doğruluk oranları ±0,5 mm TA'da, %91,7-95,8 arasında değişmiştir. Rezorpsiyonlu dişlerde EAB'ler, ±1,0 mm TA'da %74,0-65,6 ve ±0,5 mm TA'da %52,1-60,4 doğruluk oranları vermiştir. Sonuç: ±0,5 mm TA'da Raypex 6, kök rezorpsiyonu olmayan dişlerde daha fazla doğruluğa sahipken, Propex Pixi kök rezorpsiyonu olan dişlerde daha fazla doğruluğa sahiptir. Rezorpsiyon varlığı veya yokluğuna göre apeks bulucu tercihi değişebilir.

Anahtar Kelimeler: Süt dişi; elektronik apeks bulucu; çalışma uzunluğu; pediatrik endodonti
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