[The wear-timing measuring device in orthodontics--cui bono? Reflections on the state-of-the-art in wear-timing measurement and compliance research in orthodontics].

The recent development of fully functioning timing devices has yielded a new impulse to scientific research on orthodontic compliance. In contrast, promises and risks of the practical application of timing devices have thus far largely gone unheeded. In this survey, possible benefits of this new device are considered along with a critical discussion of technical and sociopsychological issues of its practical application. Following a review of the current state of orthodontic timing technology, basic implications of the collection and utilization of this new type of data are outlined. Short- and long-term perspectives of objective measurement of compliance are presented in terms of optimized treatment devices, enhanced patient compliance and improved orthodontist-patient relations. An evaluation project on benefits and risks of orthodontic timing devices is being called for.