Question · asked by 1 review
Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium): Abutment/crown fracture and marginal bone level (3 years)
- Population
- Patients with single-tooth implant crowns; split-mouth, 3-year
- Intervention
- Metal-free implant abutments (zirconia)
- Comparison
- Metal implant abutments (titanium)
- Outcome
- Abutment/crown fracture and marginal bone level (3 years)
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Zirconia abutment vs Titanium abutment Abutment/crown fracture and marginal bone level (3 years) · Patients with single-tooth implant crowns; split-mouth, 3-year · 3 years Interventions for replacing missing teeth: partially absent dentition (2012) · Cochrane All outcomes | No fractures of any abutments or crowns; non-significant differences in mean marginal bone levels, which ranged from 1.6 to 2.1 mm (narrative) | 1 study · 22 participants | GRADE not reported |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Interventions for replacing missing teeth: partially absent dentition 2012 · Cochrane All outcomes | 2011-03 | Not listed | Not assessed |
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.