EFFECTS OF DIFFERENT CONCENTRATIONS OF PHYTIC ACID ON SMEAR LAYER REMOVAL AND EROSION

Year 2018, Volume: 28 Issue: 3, 341 - 347, 11.07.2018

Mehmet Kalçay Ali Cemal Tınaz

https://doi.org/10.17567/ataunidfd.473255

Abstract

ABSTRACT

 

Aim: The purpose of this study is to evaluate and compare
the effects of different concentrations of phytic acid on smear layer removal and erosion.

Materials and Methods: Sixty freshly extracted,
single-rooted, mandibular second premolar teeth with relatively similar
dimensions and lengths were selected for this study. All of the teeth were
instrumented with Protaper Universal files, using the crown-down technique up
to size 30, 0.06 taper (F3). Groups are as follows; Group 1 (Control): 5 mL distilled
water (1 min), Group 2: 5 mL 17% EDTA (1 min), Group 3: 5 mL 1% phytic acid (1
min), Group 4: 5 mL 0.5% phytic acid (1 min). Root canals were irrigated
between each file with 2 ml, 5% NaOCl. Photomicrographs were taken at x2000
magnification, from the coronal, middle and apical third of each specimen for
evaluation.

Results: The 1% phytic acid solution proved to be more
effective than the conventional 17% EDTA solution even when the concentration
was reduced by 50%. Seventeen percent EDTA solution was effective in the
removal of the smear layer at the coronal and middle thirds of the root canal.
However, the solution was not as effective at the apical third of the root
canal. While specimens treated with the 1% phytic acid caused the highest
erosion, the 0.5% phytic acid and 17% EDTA followed.

Conclusions: There is very little research to
suggest that phytic acid can be used as an alternate root canal chelating
agent. Therefore, more research needs to be conducted to be able to evaluate
the effects of phytic acid solution on the root canal dentine.

Keywords:
Smear layer, phytic acid, erosion,
chelating agents

FARKLI KONSANTRASYONLARDA KULLANILAN
FİTİK ASİT SOLÜSYONLARININ SMEAR TABAKASININ UZAKLAŞTIRILMASI VE DENTİN
EROZYONU ÜZERİNDEKİ ETKİLERİ

Amaç: Bu çalışmanın amacı tek köklü dişlerde son irrigasyon
ajanı olarak farklı konsantrasyonlarda kulla- nılan fitik asit solüsyonlarının
smear tabakasını uzak- laştırılma etkinliğinin, erozyon üzerindeki etkilerinin
diğer irrigasyon solüsyonları ile karşılaştırılmasıdır.

Gereç
ve Yöntem: Altmış adet, tek köklü insan alt çene
ikinci premolar dişler çalışmada kullanılmıştır. Dişler döner alet yardımıyla
genişletildi. Ni-Ti Protaper Universal döner eğeleri ile üretici firma
talimatlarına göre sırasıyla SX, S1, S2, F1, F2 ve F3 enstrumanlar kullanılarak
genişletildi. Her deney grubunda farklı so- lüsyonlar son irrigasyon ajanı
olarak kullanıldı. Gruplar; Grup 1 (Kontrol): 5 mL distile su (1 dk), Grup 2: 5 mL
17% EDTA (1 dk), Grup 3: 5 mL 1% fitik asit (1 dk), Grup 4: 5 mL 0.5% fitik
asit (1 dk). Smear tabaka ve erozyon
değerlendirmesi, köklerden alınan vertikal kesitlerin, taramalı elektron
mikroskobu altında, x2000 büyütmede, köklerin koronal, orta ve apikal üçlüsün- den
alınan görüntüler kullanılarak yapıldı.

Bulgular:Çalışmanın sonuçlarına göre %1 fitik asit so- lüsyonu,
solüsyonun konsantrasyonu yarı yarıya azal- tılsa bile (%0,5 fitik asit),  konvansiyonel şelasyon aja- nı %17 EDTA’dan
smear tabakasını uzaklaştırma kabi- liyeti açısından daha etkilidir. %17 EDTA
solüsyonu, koronal ve orta üçlü seviyelerinde etkili bir şekilde smear
tabakasını uzaklaştırırken, apikal üçlü seviye- sinde aynı etkiyi
gösterememiştir. Solüsyonun pH’sının bu kadar asidik olması ve yüksek şelasyon
yeteneği ol- masına rağmen, dentinde orta derecede erozyona neden olmuştur.

Sonuçlar: Fitik asit solüsyonunun, kök kanal sistemin- de meydana
getirdiği olumlu ve olumsuz etkilerin daha iyi anlaşılması, kök kanal
tedavisinde klinik koşullarda kullanılabilirliğinin değerlendirilmesi için daha
fazla in vivo ve in vitro bilimsel çalışmalar yapılması gerekmek- tedir.

Anahtar
Kelimeler: Smear tabakası, fitik asit, erozyon,
şelatör ajanlar

Keywords

Smear layer, phytic acid, erosion

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