Prof. Nikolaos Daratsianos

Short CV

Dr. Nikolaos Daratsianos graduated from the German School of Athens / Greece. He studied at the Dental School of Frankfurt / Main in Germany and acquired the orthodontic specialization in a private orthodontic clinic and at the University Clinic of Bonn / Germany. He is the vice director of the Department of Orthodontics of the University Clinic of Bonn since 2004. 

His doctoral studies were in the field of experimental orthodontics and he graduated in 2010 as one of the few orthodontists worldwide from the “Lingual Orthodontics” program, a two-year Master of Science program at the Hannover Medical School. He treats almost all of his patients with the lingual technique. Furthermore, Dr. Daratsianos specializes on the combined orthodontic-surgical treatment of patients with severe malocclusions and the early treatment of newborns with cleft lip and palate.

Dr. Nikolaos Daratsianos is an active professor for undergraduate dental students, postgraduate orthodontic students and speech therapists and an official examiner in the German state dental examination. His scientific focus is on experimental orthodontics / biomechanics and cleft lip and palate.





Title: Critical analysis of the setup fabrication and control process of customized lingual appliances

AIMS: Contemporary customized lingual appliances are based on an individual setup as a visual treatment objective. Although orthodontists are liable for the treatment and it's side effects, they often do not get involved in the setup process of the appliance they place in the patient's mouth. The aim of this analysis was to point out typical weaknesses in the setup fabrication and control procedure and sensitize the practitioner to get involved in the laboratory process.

METHODS: Consecutive lingual cases planed by the same orthodontists and fabricated by three different laboratories, were analyzed: The total number of setups (after correctional suggestions by the orthodontist) made per case were counted and related to different factors of the setup fabrication and control procedure. 

Results and Conclusions: Most of the setups, although supposed to be finished from the technician's point of view, had to be modified after being controlled by the orthodontist, sometimes several times. The number of the setups per case was significantly smaller, if the setup was done manually; digital setups had to be revised more than twice more often. The main reason for setup revision was dental movements exceeding by far the anatomical borders, implementing high periodontal risks. The anatomical borders of the tissues in relation to the planned tooth movements will be pointed out in case reports taken from this sample. CONCLUSION: The orthodontist should control the treatment setup before appliance fabrication in order to prevent possible risks for the patient.

Authors: Nikolaos Daratsianos, Andreas Jager