Osteotomy techniques and use of powewrws instruments has changed in recent years . This panel will be about these changes in recent years

Alberto Lezcano Macchi MD

⁠Doctor of Medicine and Surgery. Degree awarded by the Faculty of Medical Sciences, National University of Asunción.

• Specialist in Otolaryngology. Degree awarded by the National University of Asunción.

Certified by the Paraguayan Society of Otolaryngology and Head and Neck Surgery and the Paraguayan Circle of Physicians. Certification obtained in 2018.

• Specialization in Facial Plastic and Aesthetic Surgery at Hospital IPO, Curitiba, Brazil; degree awarded by UNINGÁ and certified by the Brazilian Ministry of Education (MEC) and the Pan American Association of Otolaryngology and Head and Neck Surgery. 2022–2023.

• Diploma in Rhinoplasty from the Open Interamerican University of Rosario, Argentina. 2022–2023.