Findings

What do systematic reviews say?

6 questions · 7 findings · 1 reviews · Implants and prosthodontics

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No studies found 0 · 0%GRADE not reported 4 · 57.1%Very low 3 · 42.9%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Marginal bone level change · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

Metal-free implant abutments (zirconia) showed no clear difference in marginal bone level change (MBLC) compared with metal implant abutments (titanium); GRADE not reported.

2 findings from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months · Distal
MD -0.05 [-0.15, 0.04]
2 studies · 47 participants
GRADE not reported
Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months · Mesial
MD -0.39 [-0.43, -0.35]
2 studies · 47 participants
GRADE not reported

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Periodontal or peri-implant status: gingival recession (REC) · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

Metal-free implant abutments (zirconia) showed no clear difference in gingival/mucosal recession (REC) compared with metal implant abutments (titanium); GRADE not reported.

1 finding from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months
MD 0.00 [-0.22, 0.22]
2 studies · 47 participants
GRADE not reported

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Abutment failure · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

It is very uncertain whether metal-free implant abutments (zirconia) changes abutment failure compared with metal implant abutments (titanium) (very low certainty).

1 finding from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months
OR 7.63 [0.33, 177.14]
2 studies · 47 participants
Very low

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Implant probing pocket depth (PPD) · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

Metal-free implant abutments (zirconia) showed no clear difference in implant probing pocket depth (PPD) compared with metal implant abutments (titanium); GRADE not reported.

1 finding from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months
MD -0.22 [-0.60, 0.16]
2 studies · 47 participants
GRADE not reported

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Complications · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

1 finding from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months
At 12 months no complications were reported in either group.
2 studies · 47 participants
Very low

Metal-free implant abutments (zirconia) vs Metal implant abutments (titanium)

Aesthetics · Adults (18 years or older) with one missing tooth in the aesthetic zone needing an implant-supported single crown

1 finding from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months
Primary outcome aesthetic evaluation data were reported as the frequency of distribution of the Implant Crown Aesthetic Index (ICAI); no comparative summary estimate was presented.
2 studies · 47 participants
Very low