Funding for this research was provided by:
Oral Reconstruction Foundation, Basel, CH (OR41305-part2)
Received: 6 January 2021
Accepted: 17 March 2021
First Online: 26 April 2021
: The study was registered with the German Register for Clinical Studies (DRKS-ID: DRKS000018939) prior to recruitment of patients, following approval by the responsible ethics committee of the State Medical Association of Baden-Württemberg, Germany (application no.: F2019-057-z).
: Written consent was obtained from all patients for this study.
: Sigmar Schnutenhaus, Cornelia Edelmann, and Heike Rudolph declare that they have no competing interests.