In vitro comparison of the physical properties of zinc oxide eugenol-based, propolis-containing experimental root canal sealers with standard sealers

Year 2019, , 59 - 66, 01.05.2019

Mügem Aslı Ekici , Hüma Ömürlü

https://doi.org/10.17214/gaziaot.440060

Abstract

Objective: To compare the physical properties and microleakage of zinc
oxide eugenol-based experimental sealers containing propolis (PS) with Grossman
sealer and AH Plus.

Materials
and Method: Propolis collected from
Tekirdağ area (Thrace
region, Turkey)
was used. Experimental sealers containing propolis at different ratios were
prepared [5% (PS5), 10% (PS10), 25% (PS25), 50% (PS50)], and compared with
Grossman sealer and AH Plus. The film thickness, flow, radioopacity, setting
time, solubility and pH of the aqueous extracts were evaluated according to the
ISO 6876/2001 standards. The microleakage was evaluated using the computerized
fluid filtration method. Friedman and Kruskal-Wallis tests were used for the
statistical analysis of the pH and the remaining data, respectively (α=0.05).

Results: Except for the solubility, the physical properties of the
PSs were compatible with the ISO 6876/2001 standards. The solubility of the PSs
was similar to the Grossman sealer (p>0.05); but significantly greater than
the AH Plus (p<0.05). Regarding the inter-group comparison of the pH, the
aqueous extracts of all PSs had either similar or significantly greater pH
compared with those of the Grossman sealer or AH Plus (p<0.05). Significant
differences were also found in the intra-group analyses (p<0.05) with a
general tendency of an increase in the pH values with time. As for the
microleakage, the highest values were seen in PS5 and the Grossman sealer
(p>0.05; the two were similar), and the lowest values were seen in AH Plus;
PS10, PS25 and PS50 had intermediate microleakage.

Conclusion: The PSs are promising for possible future
clinical use as most of their physical properties were in accordance with the ISO
6876/2001 standards. Besides, their microleakage values were less than the
Grossman sealer, and their aqueous extracts revealed favorable pH.

Keywords

Root canal filling materials, propolis, root canal therapy

Propolis içeren çinko oksit öjenol esaslı deneysel kök kanal patlarının fiziksel özelliklerinin standart patlarla in vitro olarak karşılaştırılması

Abstract

Amaç: Bu çalışmanın amacı propolis içeren çinko oksit öjenol esaslı deneysel
patların (PP) fiziksel özelliklerinin ve mikrosızıntısının Grossman patı ve AH
Plus ile karşılaştırılmasıdır.

Gereç ve Yöntem: Bu çalışmada, Tekirdağ yöresinden (Trakya bölgesi, Türkiye) toplanılan
propolis kullanıldı. Değişik oranlarda propolis içeren patlar [%5 (PP5), %10
(PP10), %25 (PP25), %50 (PP50)], Grossman patı ve AH Plus ile karşılaştırıldı.
Film kalınlıkları, akıcılıkları, radyoopasiteleri, sertleşme süreleri,
çözünürlükleri ve sudaki ekstraktlarının pH’ları ISO 6876/2001 standartlarına
göre değerlendirildi. Patların mikrosızıntıları bilgisayarlı sıvı filtrasyon
yöntemiyle incelendi. İstatistiksel analizde pH için Friedman testi, diğer tüm
testlerin analizinde Kruskal-Wallis testi kullanıldı (α=0.05).

Bulgular: PP’lerin çözünürlük hariç diğer fiziksel özellikleri ISO 6876/2001
standartlarına uygundu. PP’lerin çözünürlüğü Grossman patına benzer
(p>0.05), AH Plus’tan anlamlı şekilde fazlaydı (p<0.05). Gruplar-arası pH
karşılaştırmasında, PP’lerin sudaki ekstratlarının pH’si Grossman ve AH Plus
patlarına benzer veya istatistiksel olarak onlardan daha yüksekti (p<0.05). Grup-içi
karşılaştırmalarda da anlamlı farklar bulunmakla beraber (p<0.05), pH
değerlerinin zaman ile yükselme eğiliminde olduğu görüldü. Mikrosızıntı için en
yüksek değerler PP5’te ve Grossman patında (p>0.05; ikisi birbirine benzerdi),
en düşük değerler ise AH Plus’ta görüldü; PP10, PP25 ve PP50 bunların arasında idi.

Sonuç: Propolis patlarının fiziksel özelliklerinin çoğunun ISO 6876/2001
standartlarına uygun bulunması, mikrosızıntılarının Grossman patından daha az
olması ve sudaki ekstraktlarının pH’lerinin uygun olması gelecekte olası klinik
kullanımları için umut vericidir.

Keywords

Kök kanal dolgu materyalleri, kök kanal tedavisi, propolis

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