Question · asked by 1 review

Full-time clear plastic (removable) retainer vs Any type of fixed (bonded) retainer: Stability: Little's Irregularity Index (lower arch)

Population
People who had received fixed appliance orthodontic treatment
Intervention
Full-time clear plastic (removable) retainer
Comparison
Any type of fixed (bonded) retainer
Outcome
Stability: Little's Irregularity Index (lower arch)

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).

What each review found

Include earlier review versions
FindingEffectStudiesGRADE certainty
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 · 12 months, lower arch
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).
Retention procedures for stabilising tooth position after treatment with orthodontic braces (2023) · Cochrane All outcomes
MD 0.60 [0.17, 1.03]1 study · 84 participantsVery low

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Retention procedures for stabilising tooth position after treatment with orthodontic braces
2023 · Cochrane All outcomes
April 2022Not listedNot assessed
How reviews are matched to this question

Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.