What do systematic reviews say?

2 questions · 2 findings · 2 reviews · Dental caries · related questions CL0289

Sort:Best matchNewest Highest certainty Download CSV

No studies found 0 · 0%GRADE not reported 1 · 50%Very low 1 · 50%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Clear aligners (Invisalign / thermoformed aligners) vs Fixed appliances

Probing pocket depth (PPD/PD) · Adults undergoing orthodontic treatment

Aligners may reduce pocket depth compared with fixed appliances in adults at 6-12 weeks (MD -0.42 mm, 95% CI -0.71 to -0.12; very low certainty).

1 finding from 1 review

Impact of Aligners and Fixed Appliances on Oral Health during Orthodontic Treatment: A Systematic Review and… 2021 All outcomes
6 to 12 weeks · Adults
MD -0.42 [-0.71, -0.12]
2 studies · 62 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