An In Vitro Comparison of Air-abrasion and Drill Influence on Dentin Surface | |
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( Volume 2 Issue 8,August 2016 ) OPEN ACCESS | |
Author(s): | |
Helena Gronwald, Petr Louda, Lukas Volesky, Pavel Kejzlar, Mateusz Fijalkowski, Zbigniew Rozek, Damian Batory, Pablo Serrano-Fernandez, Krystyna Opalko, Danuta Lietz-Kijak | |
Abstract: | |
Objectives: A water - air abrasion is one of the dentine preparation method and provides an alternative to the classic drill preparation. The examined null hypothesis was: there are no differences in geometric structure and wettability of dentin surface after water-air-abrasion and drill preparation. Material and methods: Twenty, for orthodontic reasons, extracted molars were selected for the study. The residual half of the same tooth were qualified into two groups: A - elaborated with the water-air sandblaster Aquacut Quattro; D – elaborated with drill. These prepared 20 sets of corresponding teeth half were subject of profilometric and wettability tests. The prepared dentin surface ware scanned with with FE SEM ULTRA plus (field emission scanning electron microscope, Carl Zeiss NTS GmbH, Germany). Obtained values of profilometric parameters Ra, Rq, Rp, Rq, Rsk, Rt, Rv and surface development were analyzed. Dentine surface wettability measuring was performed with the System See E (Advex Instruments, Czech Republic). Statistical analysis was carried out using ANOVA for repeated measures. Results: Between group A and D we observed statistically significant differences in Rsk (skewness) parameter indicating that the valleys dominate in samples from group A, and peaks in samples from group D. The degree of development of the surface was statistically significant higher for dentin prepared with sandblasting. Samples from group D showed trend of lower wettability than samples of group A. Conclusion: The surface of dentin after sandblasting is more-developed and this feature can positively influence the greater capacity to maintain the liquid on the surface. |
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