Findings

What do systematic reviews say?

9 questions · 9 findings · 1 reviews · Orthodontics

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No studies found 0 · 0%GRADE not reported 3 · 33.3%Very low 6 · 66.7%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Upper clear plastic retainer + lower fixed canine-to-canine retainer vs Upper clear plastic retainer + lower interproximal reduction (adjunctive), no lower retainer

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

Upper clear plastic retainer + lower fixed canine-to-canine retainer showed no clear difference in stability: Little's Irregularity Index (lower arch) compared with upper clear plastic retainer + lower interproximal reduction…; GRADE not reported.

1 finding from 1 review

Retention procedures for stabilising tooth position after treatment with orthodontic braces 2023 · Cochrane All outcomes
2 years · lower arch
MD -0.30 [-0.73, 0.13]
1 study · 47 participants
GRADE not reported

Upper clear plastic retainer + lower fixed canine-to-canine retainer vs Positioner

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

Upper clear plastic retainer + lower fixed canine-to-canine retainer led to lower stability: Little's Irregularity Index (lower arch) compared with positioner; GRADE not reported.

1 finding from 1 review

Retention procedures for stabilising tooth position after treatment with orthodontic braces 2023 · Cochrane All outcomes
2 years · lower arch
MD -1.00 [-1.65, -0.35]
1 study · 46 participants
GRADE not reported

Upper clear plastic retainer + lower interproximal reduction (adjunctive) vs Positioner

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

Upper clear plastic retainer + lower interproximal reduction… led to lower stability: Little's Irregularity Index (lower arch) compared with positioner; GRADE not reported.

1 finding from 1 review

Retention procedures for stabilising tooth position after treatment with orthodontic braces 2023 · Cochrane All outcomes
2 years · lower arch
MD -0.70 [-1.37, -0.03]
1 study · 45 participants
GRADE not reported

Part-time clear plastic (removable) retainer vs Any type of fixed (bonded) retainer

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

It is very uncertain whether part-time clear plastic (removable) retainer changes stability: Little's Irregularity Index (lower arch) compared with any type of 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 0.92 [0.23, 1.61]
1 study · 56 participants
Very low

Hawley removable retainer vs Clear plastic removable retainer

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

It is very uncertain whether hawley removable retainer changes stability: Little's Irregularity Index (lower arch) compared with clear plastic removable 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 0.01 [-0.65, 0.67]
1 study · 30 participants
Very low

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

Retention procedures for stabilising tooth position after treatment with orthodontic braces 2023 · Cochrane All outcomes
12 months · lower arch
MD -0.70 [-1.17, -0.23]
1 study · 52 participants
Very low

CAD/CAM nitinol 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 CAD/CAM nitinol fixed (bonded) retainer changes stability: Little's Irregularity Index (lower arch) compared with conventional/analogue multistrand 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 -0.46 [-0.72, -0.21]
1 study · 66 participants
Very low

Full-time wear of removable retainer (any type) vs Part-time wear of removable retainer (any type)

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

It is very uncertain whether full-time wear of removable retainer (any type) changes stability: Little's Irregularity Index (lower arch) compared with part-time wear of removable retainer (any type) (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 0.20 [-0.28, 0.68]
1 study · 52 participants
Very low

Full-time clear plastic (removable) retainer vs Any type of fixed (bonded) retainer

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

It is very uncertain whether full-time clear plastic (removable) retainer changes stability: Little's Irregularity Index (lower arch) compared with any type of 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 0.60 [0.17, 1.03]
1 study · 84 participants
Very low