Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

76 questions · 76 findings · 18 reviews

No studies found 37 · 48.7%GRADE not reported 11 · 14.5%Very low 16 · 21.1%Low 10 · 13.2%Moderate 2 · 2.6%High 0 · 0%

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

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

Survival of retainers (failure, lower arch) · People who had received fixed appliance orthodontic treatment

Fibre-reinforced composite fixed (bonded) retainer showed no clear difference in survival of retainers (failure, lower arch) compared with multistrand / spiral wire fixed (bonded) retainer (low certainty).

1 finding from 1 review

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

Adverse effects on oral health: bleeding on probing (lower arch) · People who had received fixed appliance orthodontic treatment

The review found no eligible studies for this question.

1 finding from 1 review

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

Survival: mean survival time (lower arch, months) · People who had received fixed appliance orthodontic treatment

The review found no eligible studies for this question.

1 finding from 1 review

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

Stability: Little's Irregularity Index (lower arch) · People who had received fixed appliance orthodontic treatment

It is very uncertain whether fibre-reinforced composite fixed (bonded) retainer changes stability: Little's Irregularity Index (lower arch) compared with multistrand / spiral wire fixed (bonded) retainer (very low certainty).

1 finding from 1 review

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

Adverse effects on oral health: Gingival Index (lower arch) · People who had received fixed appliance orthodontic treatment

The review found no eligible studies for this question.

1 finding from 1 review

Non-metal carbon-fibre post and core (Category III; Composipost) vs Metal custom-cast post and core (Category I)

Clinical/technical failure (root fracture) · Participants with permanent endodontically-treated (root-filled) teeth for which a post is indicated to retain the final restoration

Non-metal carbon-fibre post and core (Category III; Composipost) led to lower clinical/technical failure (root fracture) compared with metal custom-cast post and core (Category I; gold alloy); GRADE not reported.

1 finding from 1 review