Effect of CAD/CAM abutment height and cement type on the retention of zirconia crowns

Camila E.P. Silva, Simone Soares, Camila M. Machado, Edmara T.P. Bergamo, Paulo G. Coelho, Lukasz Witek, Ilana S. Ramalho, Ernesto B.B. Jalkh, Estevam A. Bonfante

Research output: Contribution to journalArticlepeer-review


Purpose: To evaluate Ti-Base abutment height and cement type on the retentiveness of zirconiabased restorations. Material and methods: 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). Results: 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). Conclusions: Although Ti-Base abutment height has not influenced zirconia superstructures' retentiveness, resin-based cements significantly evidenced higher retention than glass ionomer and temporary cements.

Original languageEnglish (US)
Pages (from-to)582-587
Number of pages6
JournalImplant dentistry
Issue number5
StatePublished - 2018


  • Abutment design
  • Dental cements
  • Dental implants
  • Pull-out test
  • Zirconia

ASJC Scopus subject areas

  • Oral Surgery


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