The lingual split technique allows direct access to the impacted mandibular tooth through the lingual cortex, preserving the buccal cortical plate and minimizing the extent of flap reflection. This approach results in less periosteal stripping and soft tissue manipulation, thereby reducing trauma to surrounding tissues. By limiting tissue disruption, it promotes better postoperative patient comfort and faster soft tissue recovery. Additionally, the technique helps maintain the structural integrity of the mandibular buccal cortex, which is crucial for bone healing. Hence, the primary advantage lies in the minimal tissue trauma achieved during extraction.

Reference: Oral and Maxillofacial Surgery, Raymond J. Fonseca, 4th Edition.