evidencegaps
Primary study · included by 1 review

Colour stabilities of three types of orthodontic clear aligners exposed to staining agents.

Liu et al., 2016 · Liu Chen-Lu, Sun Wen-Tian, Liao Wen, et al. · International journal of oral science · 2016

Included by

Ageing effects on chemical, physical, mechanical, and morphological properties of clear aligners - a systematic review.
Non-Cochrane · other · 2026 · cited as Liu et al., 2016 · Table 2; reference 28

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

1 including review in total.