Letter to the Editor about the article published in Clinical Oral Investigations tilted “Impacted and transmigrated mandibular canines: an analysis of 3D radiographic imaging data” (Bertl MH, Frey C, Bertl K, Giannis K, Gahleitner A, Strbac GD (2018), Clin Oral Investig, doi: 10.1007/s00784-018-2342-0) - Paweł Plakwicz; Krzysztof Kukuła (Clinical Oral Investigations, 2018)