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Combined Piezoelectric and Laser Therapy for Severely Compromised Teeth: Two Case Reports
Hyun Nyun Woo1, Yong Tak Jeong2,3, Hyun Woo Cho4
1Private Practice, New York, New York, USA.
Case Reports in Dentistry
|July 24, 2026
Summary
Severe periodontal defects can be treated non-surgically. A combination of piezoelectric instrumentation and Nd:YAG laser therapy achieved significant periodontal tissue healing, offering an alternative to tooth extraction.
Area of Science:
- Periodontology
- Biomedical Engineering
- Dental Laser Applications
Background:
- Deep periodontal defects (10-15 mm probing depths) are often deemed untreatable and lead to extraction.
- Traditional treatments for severe periodontitis have limitations.
Purpose of the Study:
- To evaluate the efficacy of a minimally invasive, nonsurgical approach for severe periodontal defects.
- To assess the potential of combining piezoelectric instrumentation with Nd:YAG laser therapy.
Main Methods:
- Two patients with periodontally hopeless teeth received subgingival scaling and chlorhexidine irrigation.
- Nd:YAG laser therapy was applied, with timing varying between cases.
- Clinical parameters and radiographic changes were monitored over time.
Main Results:
- Significant reduction in probing depths (up to 93.3%) and substantial clinical attachment level (CAL) gain (up to 14 mm) were observed.
- Radiographs indicated increased bone density and improved trabecular patterns.
- Minimal recession and no immediate postoperative complications were reported.
Conclusions:
- A combined piezoelectric and Nd:YAG laser therapy approach shows promise for treating severe periodontal defects.
- This minimally invasive treatment may be a viable alternative to extraction in select cases.
- Favorable outcomes depend on bacterial control and patient compliance.
