This study investigated the effect of surface treatments on the retentive strength of zirconia posts and cores to root canals.
Maxillary central incisors (n = 40) were treated endodontically, obturated, and post spaces were prepared.
Zirconia posts and cores (n = 40) were obtained and assigned randomly to four groups (n = 10 per group; control, sandblasting, tribochemical silica coating, and tribochemical silica coating + silanization). Posts were cemented adhesively, and tensile force was applied.
All treatment methods increased the tensile strength of zirconia posts and cores compared to the control group (P = .034). No significant difference was found between treatment methods.
Failure types varied depending on the surface treatment method.
2011-08-16
Eng.
The International journal of periodontics & restorative dentistry
Department of Prosthodontics, Academic Center for Dental Sciences, Gülhane Military Medical Academy, Ankara, Turkey. cumhursipahi [at] yahoo.com
Int J Periodontics Restorative Dent. ;31(5):e64-70
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