Primary study · included by 1 review

Effectiveness of treatment for Class II malocclusion with the Herbst or twin-block appliances: a randomized, controlled trial.

O'Brien 2003 · O'Brien Kevin, Wright Jean, Conboy Frances, 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

Herbst and Twin Block appliances in Class II malocclusion management for children: a systematic review and meta-analysis.

Non-Cochrane · intervention · 2026 · cited as O'Brien 2003 · Reference 20; S3

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

1 including review in total.