EFFECT OF LENTULO SPIRAL USAGE AT DIFFERENT SPEEDS ON APICAL EXTRUSION OF CALCIUM HYDROXIDE

Year 2018, Volume: 28 Issue: 2, 133 - 137, 22.04.2018

Tuğrul Aslan Salih Düzgün Yakup Üstün

https://doi.org/10.17567/ataunidfd.418733

Cited By: 1

Abstract

Aim: The aim of this study was to evaluate the apical extrusion of calcium hydroxide [Ca(OH)₂] paste, which
placed into the root canal with lentulo usage at different speeds and a hand
file.

Material and
Methods: 40 maxillary central incisors were used. Root canals
were enlarged up to 40.06 Revo-S size. At each instrument change, root canal
was irrigated with 2.5 mL of 5.25% NaOCl. Final irrigation was performed with 5
mL of 17% EDTA, 5 mL of 5.25% NaOCl, and 5 mL of saline; then, dried with paper-points. Each teeth were placed in the plastic
tubes, and the tubes were covered with aluminium foil. Ca(OH)₂
powder and distilled water were mixed at a ratio of 1:1.5. Specimens were
divided into 4 groups according to Ca(OH)₂ placement method (n=10): G1: #30 Lentulo spiral at 20000 rpm, G2: #30 Lentulo spiral at 10000 rpm, G3: #30 Lentulo spiral at 5000 rpm, G4: #40 K-Flexofile. Lentulo was used 2 mm short of the working length,
and K-Flexofile at the working length. The apices of the specimens were
inspected with a dental loop, and situation was scored. Data were subjected to
statistical analysis using Chi-square test (α=0.05).

Results: Minimum extrusion was seen in Group 3 and 4, and maximum was in Group
1. However, there was no significant difference among the groups (P > 0.05).

Conclusions: Lentulo should be used with lower speeds in clinical practice to
prevent extrusion. Ca(OH)₂ placement with K-Flexofile and lentulo
spiral at 5000 rpm can be considered safe. 

Keywords: Apical extrusion, calcium
hydroxide, lentulo spiral

FARKLI HIZLARDA LENTÜLO SPİRAL KULLANIMININ KALSİYUM HİDROKSİTİN APİKAL
EKSTRÜZYONU ÜZERİNE ETKİSİ
ÖZ

Amaç: Bu çalışmanın amacı, bir el eğesi ve farklı hızlarda lentülo kullanımı
ile kanala yerleştirilen kalsiyum hidroksit [Ca(OH)₂] patının apikal
ekstrüzyonunun değerlendirilmesiydi. 

Gereç ve Yöntem: 40 adet maksiller santral keserler kullanıldı. Kök kanalları 40.06
Revo-S boyutuna kadar genişletildi. Her enstrüman değişiminde kök kanalı 2.5 mL
%5.25’lik NaOCl ile irrige edildi. Final irrigasyonu 5 mL %17’lik EDTA, 5 mL
%5.25’lik NaOCl ve 5 mL serum fizyolojik ile yapıldı; ardından kağıt konlar ile
kurutuldu. Her bir diş plastik tüplere yerleştirildi ve tüpler alüminyum
folyo ile sarıldı. Ca(OH)₂ ve distile su 1:1.5 oranında
karıştırıldı. Ca(OH)₂ yerleştirme yöntemine göre dişler 4 gruba
ayrıldı (n=10): Birinci, ikinci ve üçüncü gruplar 30 numara Lentülo ile sırasıyla
20000,10000 ve 5000 tur/dk da çalışılarak dolduruldu. Dördüncü grupta ise #40
K-Flexofile kullanıldı. Lentülo çalışma boyundan 2 mm kısa, Flexofile ise
çalışma boyunda kullanıldı. Örneklerin apeksleri dental loop ile gözlendi ve
durum skorlandı. Ki-kare testi kullanılarak veriler istatistiksel analize tabi
tutuldu (α=0.05).

Bulgular: Minimum ekstrüzyon Grup 3 ve 4’te, maksimum taşma Grup 1’de gözlendi.
Ancak, Gruplar arasında anlamlı farklılık yoktu (P > 0.05).

Sonuç: Klinik pratikte ekstrüzyondan korunmak için lentülo daha düşük hızlarda
kullanılmalıdır. K-Flexofile ve 5000 rpm’de lentulo spiral ile Ca(OH)₂ yerleştirilmesi
güvenli olarak kabul edilebilir.

Anahtar Kelimeler: Apikal ekstrüzyon, kalsiyum hidroksid, lentülo

Keywords

Apical extrusion, calcium hydroxide

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