Answer To The Authors: 3D virtual surgical planning for positioning and orientation of the maxilla in orthognathic surgery: Methodological issues on accuracy and agreement
1 Dentistry Department, State University of Maringá, Maringá, Brazil.
2 Oral and Maxillofacial Surgery Department, Clinics Hospital of Medicine School and University Hospital of University of São Paulo, São Paulo, Brazil.
3 Statistic Department, State University of Maringá, Maringá, Brazil.