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BioMed Research International
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2016
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Article
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Tab 2
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Clinical Study
Findings of a Four-Year Randomized Controlled Clinical Trial Comparing Two-Piece and One-Piece Zirconia Abutments Supporting Single Prosthetic Restorations in Maxillary Anterior Region
Table 2
Number of implants
Implant dimensions
One-piece restorations
Two-piece restorations
33
4.00 mm–9.5 mm
21
12
18
4.00 mm–11 mm
10
8
9
3.3 mm–9.5 mm
4
5
6
3.3 mm–11 mm
4
2
3
4.5 mm–9.5 mm
2
1
5
4.5 mm–11 mm
4
1