Effectiveness of surface polishing after debonding of metal brackets from different CAD-CAM materials
Yükleniyor...
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Medizin Verlag GmbH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Purpose: The purposes of this study were to compare and evaluate the surface texture of different restorative computer-aided design and computer-aided manufacturing (CAD/CAM) materials before bonding and after debonding of metal orthodontic brackets. Materials and methods: A total of 60 rectangular ceramic test specimens (n = 20 in each group) were prepared using feldspathic ceramic blocks (FLD; served as control), hybrid ceramic blocks (HC), and lithium disilicate ceramic blocks (LDC). Surface roughness (Ra) analysis was conducted using a profilometer before bonding the metal brackets. After the debonding and polishing procedures, a second surface roughness analysis was conducted on each specimen. The shear bond strength (SBS) test was applied to each specimen using a universal test machine for debonding the metal brackets. The debonded specimens were examined under a stereomicroscope and scored using a 4-step adhesive remnant index (ARI). The Ra and SBS values and the ARI scores were saved, and the data were analyzed statistically at a significance level of 0.05. One specimen from each group was examined under atomic force microscopy to visualize surface roughness. Furthermore, one specimen from each group was additionally prepared for scanning electron microscopy analysis. Results: Statistically significant differences in SBS measurements were observed between all three groups. The highest SBS values were obtained from the FLD group, the lowest from the LDC group. The HC group showed significantly (P = 0.001) lower Ra values than the LDC and FLD groups after debonding and polishing. No significant differences were observed in the ARI scores between the groups. Conclusions: Hybrid ceramics could be a suitable alternative for fixed restorations in adult patients receiving subsequent treatments with fixed orthodontic appliances.
Açıklama
Anahtar Kelimeler
Computer-aided design/computer-aided manufacturing, Dental bonding, Fixed restoration, dental, Hybrid ceramics, Orthodontic treatment, Shear bond strength
Kaynak
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
Sayı
Künye
Aslıhan Zeynep Oz, Abdullah Alper Oz, Ural, C., Necati Kaleli, & Duran, İ. (2023). Effectiveness of surface polishing after debonding of metal brackets from different CAD-CAM materials. https://doi.org/10.1007/s00056-023-00456-4
