What do systematic reviews say?

4 questions · 5 findings · 3 reviews · Oral Health

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No studies found 1 · 20%GRADE not reported 0 · 0%Very low 4 · 80%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Resorbable (bioresorbable) plates or screws for fixation vs Titanium plates or screws for fixation

Patient satisfaction (VAS 0 to 10) · Adults (>16 years old) undergoing orthognathic surgery

It is very uncertain whether resorbable (bioresorbable) plates or screws for fixation changes patient satisfaction (VAS 0 to 10) compared with titanium plates or screws for fixation (very low certainty).

1 finding from 1 review

Resorbable versus titanium plates for orthognathic surgery 2017 · Cochrane All outcomes
4 to 6 months
MD 0.17 [-0.67, 1.01]
1 study · 60 participants
Very low

Metal-free implant-supported single crowns (zirconia veneered with feldspathic ceramic) vs Metal-ceramic implant-supported single crowns

Patient satisfaction (measured by patient satisfaction or aesthetic scales) · 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-supported single crowns (zirconia veneered with… changes aesthetic evaluation (patient satisfaction VAS) compared with metal-ceramic implant-supported single crowns (very low certainty).

2 findings from 1 review

Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
12 months
MD -4.65 [-18.75, 9.45]
1 study · 18 participants
Very low
Metal‐free materials for fixed prosthodontic restorations 2017 · Cochrane All outcomes
24 months
MD -0.03 [-7.65, 7.59]
1 study · 18 participants
Very low

Fibre-reinforced composite fixed (bonded) retainer vs Multistrand / spiral wire fixed (bonded) retainer

Patient satisfaction (measured by patient satisfaction or aesthetic scales) · People who had received fixed appliance orthodontic treatment

It is very uncertain whether fibre-reinforced composite fixed (bonded) retainer changes patient satisfaction: aesthetics (VAS 0-10 cm, lower arch) compared with multistrand / spiral wire fixed (bonded) retainer (very low certainty).

1 finding from 1 review

Retention procedures for stabilising tooth position after treatment with orthodontic braces 2023 · Cochrane All outcomes
12 months · lower arch
MD 1.49 [0.76, 2.22]
1 study · 32 participants
Very low

Hawley removable retainer vs Clear plastic removable retainer

Patient satisfaction: comfort (VAS, upper and lower arches) · People who had received fixed appliance orthodontic treatment

The review found no eligible studies for this question.

1 finding from 1 review

Retention procedures for stabilising tooth position after treatment with orthodontic braces 2023 · Cochrane All outcomes
12 months · upper and lower arches
No RCTs at 12 months; 1 RCT at 6 months: Hawley less comfortable (VAS MD -1.86, 95% CI -2.19 to -1.53; very low-certainty)
0 studies
No studies found