@article{GehrkeAbazariSchlichteretal.2020,
  author    = {Peter Gehrke and Cyrus Abazari and Kai Schlichter and Carsten Fischer and Dirk Duddeck and Georgios Romanos and Paul Weigl},
  title     = {Qualitative and semi-quantitative assessment of processing-related surface contamination of one- and two-piece CAD/CAM abutments before and after ultrasonic cleaning},
  journal   = {Materials},
  volume    = {13},
  number    = {art. 3225},
  pages     = {1 -- 18},
  doi       = {10.3390/ma13143225},
  year      = {2020},
}