Three-dimensional video recordings: Accuracy, reliability, clinical and research guidelines – Reliability assessment of a 4D camera. G Coppola, D Hänggi, G Cassina, C Verna, N Gkantidis, G Kanavakis.

The accuracy of movement recordings was excellent at all speeds (60, 30 and 15 fps), with variability in MAD values consistently being less than 1 mm. The reliability of the camera recordings was excellent at all recording speeds.

3D extraoral morphometric changes after implant surgery: an exploratory pilot study using stereophotogrammetry. P Ercal, E Calciolari, R Patel, L Zou, N Mardas, N Donos.

There was a longitudinal decrease in soft tissue volume and depth difference in extraoral soft tissues in the region of implant placement after surgery up to 6 weeks. The use of a facial scanner is a promising noninvasive method to monitor 3D morphometric changes after implant surgery.

Functional therapy and adenotonsillectomy clinical trial for class II malocclusion (FACT-II): protocol for a randomised controlled trial. F Guo, C Lv, B Tang, L Lin, C Zhang, J Zheng, T Zhao, H He.

In summary, this study will serve as evidence to guide clinicians in deciding whether to perform the T&A on patients prior to functional therapy based on a wide range of objectively and subjectively measured outcomes and provide a reference for multidisciplinary management of OSA with craniofacial alterations in growing children.