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A Journal on Dentistry and Maxillofacial Surgery

Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
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Minerva Stomatologica 2013 Jun 11

language: English, Italian

Clinical and mechanical evaluation of screw-retained implant-supported zirconia restorations. A 36 months prospective clinical study

Di Alberti L. 1, Di Alberti C. 2, Donini F. 2, Lo Muzio L. 3, Cadrobbi F. 4, D’Agostino A. 5, De Santis D. 6, Bertossi D. 6

1 Visiting Professor in Implant Prosthetic University of Foggia, Italy;
2 Private Practitioners,Chieti, Italy;
3 Director and Professor in Oral Medicine University of Foggia, Italy;
4 Dentistry student, University of Verona;
5 Aggregate Professor, Department of Surgery Section of Oral and Maxillofacial Surgery University of Verona, Verona;
6 Associate Professor, Department of Surgery Section of Oral and Maxillofacial Surgery University of Verona, Verona


This study evaluated the clinical performance of screwed customized zirconia abutments. Additionally, the marginal fit between the selected implant components was measured and the clinical gingival response was monitored. Thirty patients were consecutively selected for a prospective study of 30 implant-supported restorations. Customized zirconia abutment complexes were prepared, then ceramic was performed directly. The abutments were screwed onto the implants and restored with all-ceramic crowns. Plaque and gingival indices were recorded monthly intervals over a 12- month period. All ceramic zirconia abutments offered sufficient stability to support implantsupported single-tooth reconstructions in anterior and premolar regions. The soft and hard tissue reaction toward zirconia was favorable.

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