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[Applicational evaluation of split tooth extractions of upper molars using piezosurgery]
1Department of Second Dental Center, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
Summary
Piezosurgery offers better alveolar bone preservation during split tooth extractions compared to conventional methods. While surgical time is longer, it results in less bone trauma and comparable patient comfort.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Technology
Background:
- Split tooth extraction is a common procedure in oral surgery.
- Minimally invasive techniques are sought after to reduce patient trauma and improve outcomes.
Purpose of the Study:
- To evaluate the efficacy of Piezosurgery in split tooth extractions.
- Compare Piezosurgery with conventional extraction methods regarding surgical outcomes and patient experience.
Main Methods:
- A single-center, randomized, split-mouth study involving 40 patients undergoing maxillary molar extraction.
- Teeth were extracted using either conventional instruments or Piezosurgery.
- Surgical duration, bone changes, discomfort, and fear were compared between groups.
Main Results:
- Piezosurgery group showed significantly less buccal alveolar bone reduction (1.49±0.61 mm) compared to the control group (1.07±0.64 mm).
- Surgical duration was longer in the Piezosurgery group (456.0±337.2 s) versus the control group (629.5±171.0 s).
- No significant differences were observed in surgical discomfort, bony socket expansion, or operative fear.
Conclusions:
- Piezosurgery is effective in preserving alveolar bone and reducing trauma during split tooth extractions.
- It represents a minimally invasive approach with good clinical results and patient satisfaction.
- While requiring longer surgical time, Piezosurgery demonstrates value in limiting bone tissue destruction.

