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Tooth shell versus bone shell technique for horizontal maxillary alveolar ridge augmentation
Khaled Ahmed Ibrahim Awad1, Mohamed Abdel-Monem Tawik2, Mohamed Mohamed Hussein3
1Faculty of Dentistry, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt. Khaled_Awad@den.kfs.edu.eg.
BMC Oral Health
|April 25, 2025
Summary
The tooth shell technique (TST) offers excellent dimensional stability for maxillary alveolar ridge augmentation, showing less graft resorption than the traditional bone shell technique (BST). This makes TST a promising alternative for enhancing bone structure in the esthetic zone.
Area of Science:
- Dentistry
- Oral Surgery
- Regenerative Medicine
Background:
- Maxillary alveolar ridge augmentation is crucial for dental implant success.
- Traditional autogenous bone grafting has limitations.
- The tooth shell technique (TST) is explored as a novel alternative.
Purpose of the Study:
- To compare the clinical and radiographical outcomes of TST versus the bone shell technique (BST) for maxillary alveolar ridge augmentation.
- To evaluate implant stability and graft resorption in both techniques.
Main Methods:
- A comparative study involving 28 patients with maxillary defects, divided into BST (control) and TST (study) groups.
- Implant stability assessed at placement, 4 months, and 8 months post-loading.
- Radiographic evaluation using CBCT scans at baseline, immediately post-grafting, and 6 months post-grafting.
Main Results:
- All 30 inserted implants achieved successful osseointegration.
- No significant difference in implant stability was observed between the BST and TST groups.
- The TST group exhibited significantly less graft resorption compared to the BST group across all measured points.
Conclusions:
- The tooth shell technique (TST) demonstrates excellent dimensional stability for lateral ridge augmentation.
- TST results in minimal graft resorption, positioning it as a superior alternative to BST.
- This technique holds promise for predictable outcomes in esthetic zone reconstructions.
