title: Influence of mesoporous silica coating treatment on push-out bond strength of zirconia posts.
abstract: This study aimed to evaluate the influence of mesoporous silica coating surface treatments on push-out bond strength of zirconia posts. Zirconia posts (Cosmopost) were treated with vehicle (control), sandblasting plus silane application (SB+SI), a combination of sandblasting, mesoporous silica coating and silane application (SB+MSC+SI) (n=10/group). Specimens were cemented with RelyX Unicem (3M ESPE, Germany) then horizontally segmented into three sections and subjected to a push-out test. Surface treatments showed significant higher bond strength than the control group, and SB+MSC+SI group presented higher values than SB+SI group (P<0.05). No significant differences were found in bond strength among root regions (P>0.05). We conclude that the combination of mesoporous silica coating and silane application greatly enhance the push-out bond strength of zirconia posts.
authors.affiliation: Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Feng
authors.affiliation: The Medical Centre of Stomatology, The 1st Affiliated Hospital of Jinan University, Guangzhou 510630, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Sun
authors.affiliation: Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
authors.forename: Ruoyu
authors.initials: R
authors.lastname: Liu
authors.affiliation: Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
authors.forename: Yanli
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
authors.forename: Aijie
authors.initials: A
authors.lastname: Chen
authors.affiliation: Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
authors.forename: Longquan
authors.initials: L
authors.lastname: Shao
mesh_terms: D000268:Adhesiveness; D002484:Cementation / Q000379:methods; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D019544:Equipment Failure Analysis; D017276:Friction; D006801:Humans; D016062:Porosity; D011176:Post and Core Technique / Q000295:instrumentation*; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D013718:Tensile Strength; D014070:Tooth / Q000502:physiology* / Q000601:surgery*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D020099:Coated Materials, Biocompatible; D003738:Dental Cements; D003764:Dental Materials; D012822:Silicon Dioxide; D015040:Zirconium; C028541:zirconium oxide
keywords: Zirconia; mesoporous silica coating; posts; push-out; root region