Primary study · included by 1 review

Activation time and material stiffness of sequential removable orthodontic appliances. Part 1: Ability to complete treatment.

Bollen 2003 · Bollen Anne-Marie, Huang Greg, King Greg, et al. · American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics · 2003

Included by

Comparative impact of clear aligners versus fixed orthodontic appliances on periodontal health, pain, and quality of life: a systematic review and meta-analysis.

Non-Cochrane · intervention · 2026 · cited as Bollen 2003 · Table 2 row 4

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

1 including review in total.