Masters Candidate, Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, Bauru, SP, Brazil.
Assistant Professor, Department of Prosthodontics and Periodontology, University of São Paulo, Bauru School of Dentistry, Bauru, SP, Brazil.
Implant Dent. 2018 Oct;27(5):582-587. doi: 10.1097/ID.0000000000000811.
To evaluate Ti-Base abutment height and cement type on the retentiveness of zirconia-based restorations.
Four millimeter (tall) and 2.5-mm-height (short) abutments along with temporary (provisional), glass ionomer (Meron), self-adhesive (U200), and conventional resin cement (Ultimate) were evaluated using pull-out testing (n = 10 crowns/group).
Tall and short abutments demonstrated similar retention for all within cement comparisons, except U200 (P = 0.032). Resin cements exhibited superior retentiveness than others (P < 0.01). Although no significant difference was evidenced between resin cements for short abutments, Ultimate evidenced higher retention than U200 for tall abutments (P = 0.043).
Although Ti-Base abutment height has not influenced zirconia superstructures' retentiveness, resin-based cements significantly evidenced higher retention than glass ionomer and temporary cements.
评估钛基基台高度和粘结剂类型对氧化锆修复体固位力的影响。
使用 4 毫米（高）和 2.5 毫米（矮）基台以及临时（暂时）、玻璃离子（美仑）、自粘接（U200）和常规树脂粘结剂（终极）进行了拔出试验（每组 10 个冠）。
除 U200 外（P = 0.032），高、矮基台在所有粘结剂内比较中表现出相似的固位力。树脂粘结剂的固位力优于其他粘结剂（P < 0.01）。虽然矮基台的树脂粘结剂之间没有显著差异，但高基台的 Ultimate 比 U200 具有更高的固位力（P = 0.043）。
尽管钛基基台高度并未影响氧化锆修复体的固位力，但树脂基粘结剂的固位力明显高于玻璃离子和临时粘结剂。
