KALSİYUM SİLİKA İÇERİKLİ PULPA KAPLAMA MATERYALİNİN IŞIK KAYNAĞININ ÜÇ FARKLI MODU İLE POLİMERİZASYONU ESNASINDA OLUŞAN ISI ARTIŞININ İNCELENMESİ

Yıl 2014, Cilt: 24 Sayı: 2, 178 - 184, 11.02.2015

Ebru Küçükyılmaz , Murat Botsalı Tuğrul Sarı Selçuk Savaş Bülent Özkan

https://doi.org/10.17567/dfd.38507

Cited By: 1

Öz

Işık ile sertleşen dental materyallerin polimerizasyonu esnasında ortaya çıkan ısı artışı, pulpa hasarına yol açabilmektedir.

Amaç: Bu çalışmanın amacı, 3 farklı polimerizasyon moduna sahip bir LED ışık kaynağının, rezin modifiye kalsiyum silikat içerikli pulpa kaplama ajanının polimerizasyonu esnasında pulpa odasında oluşturduğu ısı değişikliğinin değerlendirilmesidir.

Gereç ve Yöntem: Çekilmiş molar dişin, okluzal yüzeyinde pulpa üzerinde 1 mm kalınlığında dentin tabakası kalacak şekilde düz bir kesim yapıldı. Klinik durumu yansıtmak için, belirli bir basınçla suyun pulpa içerisinde dolaşması sağlanarak pulpal sirkülasyon taklit edildi. Pulpa kaplama materyalinin (TheraCal, Bisco Inc.,USA) ışıkla sertleşmesi esnasındaki ısı artışı ölçüldü. Materyallerin polimerizasyonu için ışık kaynağının üç farklı modu kullanıldı; hızlı polimerizasyon (HP), yavaş artan polimerizasyon (YAP) ve soft polimerizasyon (SP). Oluşan ısısal değişiklikler, bir veri kaydedici ile kaydedildi. Veriler istatiksel olarak tek yönlü ANOVA testi ile değerlendirildi.

Bulgular: ANOVA testi pulpa odasında oluşan ısı değişimlerinin ışık kaynağının farklı modlarından etkilendiğini göstermiştir. Tüm gruplar kendi aralarında istatiksel olarak anlamlı fark göstermiştir (p<0.05). Farklı modlardan kaynaklanan ısı değişimleri şöyledir: HP için (7.19±0.44^°C), YAP için (6.62±0.34°C), SP için (6.10±0.37°C).

Sonuç: Aşağıdaki sonuçlar bulunmuştur; Farklı ışık modlarından kaynaklı intrapulpal ısı değişimleri yüksekten düşüğe doğru şöyle sıralanmaktadır: HP, YAP, SP. Işık kaynağının tüm modları kendi aralarında istatiksel olarak anlamlı fark göstermiştir. TheraCal’in aynı ışık kaynağının farklı modlarıyla polimerizasyonu esnasında 5.5^oC’den fazla intrapulpal ısı artışı gözlenmiştir.

Anahtar Kelimeler

ışıkla sertleşen dental materyaller, pulpal sirkülasyon, ısı artışı

INVESTIGATION OF TEMPERATURE RISE DURING POLYMERIZATION OF CALCIUM SILICATE CONTAINING PULP-CAPPING MATERIAL WITH DIFFERENT MODES OF LIGHT-CURING UNIT

Öz

Pulp damage may occur because of the temperature rise during polymerization of light-cured dental materials. Aim: The purpose of this study was to evaluate three different curing modes of a light emitting diode (LED) on the temperature rise in the pulp chamber during polymerization of a light-cured resin-modified calcium silicate filled pulp-capping material. Material and Method: A straight-cut was made to the occlusal surface of an extracted molar ensuring 1 mm dentin thickness over the pulp. Pulpal circulation was simulated by water cycling through the pulp chamber with a defined flow pressure to simulate the clinical case. Temperature rise was measured during the light curing of capping material (Theracal, Bisco Inc.,USA). Three modes of light curing unit (Planmeca Lumion,Mectron,Italy) were used to polymerizate the material; fast (FP), slow rise (SRP) and soft (SP). Thermal changes were measured by a data-logger. The data were statistically analyzed by one-way ANOVA. Results: ANOVA test showed that pulp chamber temperature changes were influenced by the mode of light source. All groups showed significant differences between each other (P<0.05). The intrapulpal temperature changes induced by different modes were: (7.19±0.44°C) for FP, (6.62±0.34°C) for SRP, (6.10±0.37°C) for SP. Conclusion: Following conclusions were drawn; The intrapulpal temperature changes induced by various light modes were: FP, SRP and SP in descending order. All curing modes of light curing unit showed significant differences between each other. Light curing of the TheraCal with different polymerization modes of the same light unit resulted in more than 5.5°C increase in the pulp chamber

Anahtar Kelimeler

Light-cured dental material, pulp circulation, temperature rise

Kaynakça

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