TY - JOUR
T1 - Effect of surface treatment and type of cement on the retentive strength of orthodontic bands on gold alloy crowns
AU - Youn, Young Ah
AU - Lee, Yong Keun
AU - Lee, Dong Yul
AU - Kim, Na Yeon
AU - Lim, Yong Kyu
PY - 2007/12
Y1 - 2007/12
N2 - Introduction: The objective of this study was to evaluate the effect of surface treatment of gold alloy crowns and type of cement on the retentive strength of orthodontic bands cemented on gold alloy crowns. Methods: Two hundred eight crowns, made of type IV dental gold alloy, were divided into 16 groups based on surface treatment (C, no treatment; S, sandblasting; V, V-Primer; and S + V, sandblasting and V-Primer) and band cement (resin-modified glass ionomer cement, compomer, composite resin, and adhesive resin cement). Bands were cemented on the crowns, and tensile loads were applied to measure the retentive strength. Two-way analysis of variance (ANOVA) was performed for the retentive strength with the factors of surface treatment and type of cement, and the Scheffé multiple comparison test was performed as a post-hoc test (α = 0.05). Results: The retentive strength of the bands was influenced by surface treatment and type of cement, and there was significant interaction between the 2 variables based on 2-way ANOVA (P <.05). Resin-modified glass ionomer cement showed the highest retentive strength regardless of surface treatment (>1.26 MPa). Conclusions: Resin-modified glass ionomer cement is the most desirable cement for attaching a band to a gold alloy crown. When an adhesive resin cement is used, sandblasting of the gold crown is recommended.
AB - Introduction: The objective of this study was to evaluate the effect of surface treatment of gold alloy crowns and type of cement on the retentive strength of orthodontic bands cemented on gold alloy crowns. Methods: Two hundred eight crowns, made of type IV dental gold alloy, were divided into 16 groups based on surface treatment (C, no treatment; S, sandblasting; V, V-Primer; and S + V, sandblasting and V-Primer) and band cement (resin-modified glass ionomer cement, compomer, composite resin, and adhesive resin cement). Bands were cemented on the crowns, and tensile loads were applied to measure the retentive strength. Two-way analysis of variance (ANOVA) was performed for the retentive strength with the factors of surface treatment and type of cement, and the Scheffé multiple comparison test was performed as a post-hoc test (α = 0.05). Results: The retentive strength of the bands was influenced by surface treatment and type of cement, and there was significant interaction between the 2 variables based on 2-way ANOVA (P <.05). Resin-modified glass ionomer cement showed the highest retentive strength regardless of surface treatment (>1.26 MPa). Conclusions: Resin-modified glass ionomer cement is the most desirable cement for attaching a band to a gold alloy crown. When an adhesive resin cement is used, sandblasting of the gold crown is recommended.
UR - http://www.scopus.com/inward/record.url?scp=36649001212&partnerID=8YFLogxK
U2 - 10.1016/j.ajodo.2007.01.016
DO - 10.1016/j.ajodo.2007.01.016
M3 - Article
C2 - 18068585
AN - SCOPUS:36649001212
SN - 0889-5406
VL - 132
SP - 728.e1-728.e6
JO - American Journal of Orthodontics and Dentofacial Orthopedics
JF - American Journal of Orthodontics and Dentofacial Orthopedics
IS - 6
ER -