Üniversal bir adezivin ER:YAG lazerle prepare edilmiş çürükten etkilenmiş dentine mikrogerilim bağlanma dayanımı
Abstract
Amaç: Bu in vitro pilot çalışmanın amacı, Er-YAG
lazer kullanılarak elde edilen çürükten etkilenmiş
dentine uygulanan üniversal adeziv sistemin
mikrogerilim bağlanma dayanımını (µTBS)
değerlendirmektir.
Gereç ve Yöntemler: Koronal çürüklü on daimi
molar diş üniversal adezivin farklı uygulama
tekniğine göre iki gruba ayrıldı; kendinden asitli
(grup 1) ve asitle ve yıka (grup 2). Er:YAG
(200mJ/4Hz) lazer, yumuşak ve demineralize
dentin kaldırılana kadar diş yüzeyine uygulandı.
Single bond universal adeziv (3M ESPE) üretici
firma talimatlarına göre diş yüzeylerine uygulandı
ve dişler ışıkla sertleşen kompozit ile restore edildi
(Universal restorative 200 3M, ESPE). Hazırlanmış
örnekler, termal siklus cihazında (10 saniye
bekletme süresi ile, 5°C -55°C 'de 2500 devir)
yaşlandırıldıktan sonra mikro gerilim testi için
elmas bıçak ile kesildi. Elde edilen kesitler
mikrogerilim bağlanma dayanımı testine tabi
tutuldu. Elde dilen veriler Mann-Whitney U testi
(P=0.05) (SPSS Windows 15.0) ile analiz edildi.
Her gruptan bir diş örneği taramalı elektron
mikroskobu kullanılarak incelendi.
Bulgular: Bu çalışmanın sonuçlarına göre grup 1
de daha fazla mikrogerilim bağlanma dayanımı
değeri bulunmakla birlikte bu iki grup arasında
istatistiksel olarak anlamlı bir fark gözlenmedi
(p > 0.05). SEM bulgularına göre grup 1 de
kompozit rezin-dentin bağlanma ara yüzeyinde
oluşan hibrit tabakasının daha ince iken, grup 2 de
daha kalın bir tabaka oluştuğu gözlendi.
Sonuç: Bu pilot çalışma sonucunda Er-YAG lazer
ile çürük temizlenmesinin ardından molar dişlerin
restore edilmesinde üniversal adeziv sistemin
kendinden asitli ve asitle ve yıka şeklindeki
uygulamasının kullanılabileceği sonucuna
varılmıştır.
References
- Aranha AC, Turbino ML, Powell GL, Eduardo CP, 2005. Assessing microleakage of class V composite restorations after Er:YAG laser and bur preparation. Lasers Surg Med 37: 172-77.
- Armengol V, Jean A, Rohanizadeh R, Hamel H, 1999. Scanning electron microscopic analysis of diseased and healthy dental hard tissues after Er:YAG laser irradiation: In vitro study. J Endod 25: 543-46.
- Bayne SC, Thompson JY, Studervant CM, Taylor DF, 2002. Instruments and equipment for tooth preparation. In: Roberson TM, Heymann HO, Swift-Jr EJ (eds). Studervant’s Art & Science of Operative Dentistry. St. Louis: Mosby, pp:307-44.
- Bertrand MF, Semez G, Leforestier E, Muller-Bolla M,Nammour S, Rocca JP, 2006. Er:YAG laser preparation and composite resin bonding with a single-component adhesive system relationship between shear bond strength and microleakage. Lasers Sugr Med 38: 615-23.
- Corona SA, Borsatto MC,Pecora JD, De Sa Rocha RA, Ramos TS, Palma-Dibb RG, 2003. Assessing microleakage of different class V restorations after Er:YAG laser and bur preparation. J Oral Rehabil 30: 1008-14.
The microtensile bond strength of universal adhesive on caries-affected dentin after ER:YAG laser treatment
Abstract
Background: The aim of this study was to evaluate the microtensile bond strength (μTBS) of an universal adhesive system on Er-YAG laser treated caries affected dentine.Methods: Ten molar teeth with coronal caries were randomly divided into two groups according to the bonding technique performed (group 1); self-etch adhesive (group 2), etch&rinse approach, Er:YAG (200mJ/4Hz; noncontact) laser was used to remove caries, and the teeth were irradiated until the soft and demineralized dentin removed. Then Single bond universal adhesive agent (3M ESPE) was applied to teeth according to the manufacturers’ instructions and restored with the same light-cured composite resin material (Universal restorative 200 3M, ESPE). Teeth were then subjected to thermocycling for 2500 cycles at a temperature of 5°C and 55°C with a dwell time of 10 seconds. Resin-dentin sticks (n=10) were obtained with diamond saw and subjected to μTBS test. One tooth of each group was examined using scanning electron microscopy. Statistical analysis was performed in SPSS for Windows 15.0. Mann-Whitney U test was used for comparing the groups at a significance level of p0.05). One of the sample from each group was examined using scaning electron microscopy.Results: Although higher μTBS record obtained from group 1, between these two groups statistically significant difference was not observed (p > 0.05). Hybrid layer formation between composite resin and dentin bonding interface was a thin layer observed by SEM in group 1, in group 2 a thick hybrid layer was found.Conclusion: It can be concluded that both self-etch approach and etch & rinse approach can be used for adhesive restorations to caries affected dentine after Er-YAG laser irradiation of molar teeth.
References
- Aranha AC, Turbino ML, Powell GL, Eduardo CP, 2005. Assessing microleakage of class V composite restorations after Er:YAG laser and bur preparation. Lasers Surg Med 37: 172-77.
- Armengol V, Jean A, Rohanizadeh R, Hamel H, 1999. Scanning electron microscopic analysis of diseased and healthy dental hard tissues after Er:YAG laser irradiation: In vitro study. J Endod 25: 543-46.
- Bayne SC, Thompson JY, Studervant CM, Taylor DF, 2002. Instruments and equipment for tooth preparation. In: Roberson TM, Heymann HO, Swift-Jr EJ (eds). Studervant’s Art & Science of Operative Dentistry. St. Louis: Mosby, pp:307-44.
- Bertrand MF, Semez G, Leforestier E, Muller-Bolla M,Nammour S, Rocca JP, 2006. Er:YAG laser preparation and composite resin bonding with a single-component adhesive system relationship between shear bond strength and microleakage. Lasers Sugr Med 38: 615-23.
- Corona SA, Borsatto MC,Pecora JD, De Sa Rocha RA, Ramos TS, Palma-Dibb RG, 2003. Assessing microleakage of different class V restorations after Er:YAG laser and bur preparation. J Oral Rehabil 30: 1008-14.
Details
| Other ID | JA24CK78BM |
|---|---|
| Journal Section | Research |
| Authors | |
| Publication Date | December 1, 2015 |
| Submission Date | December 1, 2015 |
| Published in Issue | Year 2015 Volume: 2 Issue: 3 |
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