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Published on: April 21, 2023
Short Lingual Osteotomy Using a Piezosurgery Ultrasonic Bone-Cutting Device During Sagittal Split Ramus Osteotomy
Yoko Kawase-Koga1, Yoshiyuki Mori, Yuki Kanno
1*Department of Oral and Maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Tokyo †Department of Dentistry, Oral and Maxillofacial Surgery, Jichi Medical Univeristy, Shimotsuke, Japan.
Short lingual osteotomy using Piezosurgery offers a safer alternative for sagittal split ramus osteotomy, reducing risks of abnormal fractures and nerve damage. This novel technique enhances surgical precision and patient safety in mandibular bone procedures.
Area of Science:
- Oral and Maxillofacial Surgery
- Surgical Innovation
- Biomedical Engineering
Background:
- Sagittal split ramus osteotomy (SSRO) is a common procedure for mandibular deformities.
- Short lingual osteotomy is a technique used in SSRO to manage lateral differences in setback.
- Conventional short lingual osteotomy carries risks of abnormal fracture and neurovascular injury.
Observation:
- A novel technique utilizing an ultrasonic bone-cutting device (Piezosurgery) was employed.
- The osteotomy was performed vertically posterior to the mandibular foramen.
- This approach specifically targets the lingual aspect of the mandibular ramus.
Findings:
- The Piezosurgery technique successfully achieved short lingual osteotomy.
- This method effectively avoided abnormal fracture of the mandibular bone.
- Damage to the neurovascular bundle was successfully prevented.
Implications:
- Piezosurgery offers a potentially safer and more precise method for short lingual osteotomy.
- This technique may reduce the incidence of complications associated with conventional methods.
- Further adoption could improve outcomes in patients undergoing SSRO.

