Influence of different surface treatments on surface zirconia frameworks

Comparison of methanol/hydrochloric, ferric chloride acid versus tribochemical silica coating for adhesion of resin cement to zirconium dioxide

“…The present study evaluated whether surface conditioning protocols based on etching with heated solution could be an alternative to tribochemical coating to improve adhesion of resin cement after aging. The results in the absence of chemical bond were not favorable for etching after aging, contradicting with the previous studies [7,11,12]. The morphological evaluation under SEM indicated rough surface after this type of conditioning but SC groups yielded to more prominent surface alterations for increased mechanical retention, confirming previous findings of studies on adhesion to zirconia [3,5,13].…”

“…Microshear bond strength test 7 The specimens were placed in device attached to the jig of the Universal Testing Machine …”

“…Thus, alternative methods have been proposed [7][8][9] one of which is etching zirconia using heated chemical solutions [10][11][12]. Such chemical solutions were 5 postulated to produce surface irregularities and deliver increased bond strength between resin cement and zirconia when compared to air-abrasion with 125 µm Al 3 O 2 particles or no conditioning [7,11].…”

Inlay-retained zirconia fixed partial dentures – the literature review.

“…Autorzy podają, że polepszenie połączenia między kompozytem a powierzchnią tlenku cyrkonu wystę-puje po wcześniejszym zastosowaniu: piaskowania tlenkiem glinu (36,37), lasera Er:YAG (38), trawienia na gorąco (35), piaskowania oraz nałożeniu primera zawierającego monomery fosforanowe (16,(39)(40)(41). Piaskowanie powierzchni tlenku cyrkonu może jednak mieć skutki uboczne w postaci powstawania mikropęknięć, szczelin i zmian strukturalnych (33).…”

“ENDOCROWN”—An Effective Viable Esthetic Option for Expurgated Endodontically treated Teeth: Two Case Reports

“…Though microretention is compromised in PFM endocrown case, meticulous care was followed to enhance the retention of the restoration by incorporation of secondary retentive grooves in the axial walls in addition to the sandblasting of the metal surface before cementation, as stated in various studies. 21 These grooves aid in retention of the metal surface onto the tooth accompanied by the luting cement by reducing the radius of rotation. Grooves not only enhance the retention by presenting additional nearparallel sided walls to the preparation, but also limit the path of insertion.…”