evidencegaps
Primary study · included by 1 review

A two-year comparative assessment of retention of arch width increases between modified vacuum-formed and Hawley retainers: a multi-center randomized clinical trial.

Ashari 2022 · Ashari Asma, Nik Mustapha Nik Mukhriz, Yuen Jonathan Jun Xian, et al. · Progress in orthodontics · 2022

Included by

Effects of different orthodontic retainers on dental arch stability and periodontal health: a systematic review with pairwise meta-analysis and network meta-analysis.
Non-Cochrane · intervention · 2026 · cited as Ashari 2022 · Table 1; Ref 26

The review does not say which of its outcomes this study informs.

1 including review in total.