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Piezosurgery for the Lingual Split Technique in Lingual Positioned Impacted Mandibular Third Molar Removal: A
Jing Ge1, Chi Yang, Jiawei Zheng
1From the Department of Oral Surgery (JG, CY, WQ); and Department of Oral-Maxillofacial Head and Neck Surgery (JZ), Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Piezosurgery with the lingual split technique offers a safe and effective method for extracting impacted mandibular third molars. This minimally invasive approach demonstrates high success rates and good postoperative outcomes.
Area of Science:
- Oral and Maxillofacial Surgery
- Minimally Invasive Surgical Techniques
- Dental Technology
Background:
- Impacted mandibular third molars are common, often requiring surgical extraction.
- Lingual positioned impactions present unique challenges and risks.
- Minimally invasive techniques are sought to reduce surgical trauma and improve outcomes.
Purpose of the Study:
- To evaluate the efficacy and safety of the lingual split technique using piezosurgery.
- To assess its potential as a minimally invasive option for extracting lingual impacted mandibular third molars.
Main Methods:
- The lingual split technique with piezosurgery was performed on 110 lingual impacted mandibular third molars in 89 patients.
- Osteotomy lines (one sagittal, two transverse) were designed for bone removal.
- Success rate, operative time, postoperative outcomes, and complications were analyzed.
Main Results:
- All 110 impacted molars were successfully extracted.
- Average operative time was 14.6 minutes.
- Primary healing occurred in 97.3% of sites, with minimal reported pain, swelling, and good mouth opening.
- Transient nerve disturbances (lingual and inferior alveolar) occurred in a small percentage of cases, resolving within 2 months.
Conclusions:
- Piezosurgery-assisted lingual split technique is an effective and safe procedure for extracting lingual impacted mandibular third molars.
- It represents a viable minimally invasive surgical option for this challenging condition.

