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Prosthetically Driven Alveolar Reconstructions: A Retrospective Study
Guaracilei Maciel Vidigal Junior1, Luiz Roberto Figueiredo Dantas2, Luis Carlos de Moraes E Silva Junior3
1Department of Integrated Clinical Procedures, Dental School, UERJ - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Brazilian Dental Journal
|November 4, 2020
Summary
The prosthetically-driven alveolar reconstruction (PDAR) technique effectively regenerated alveolar bone after tooth extraction, showing significant bone gain without flaps or grafts. This method offers a low-morbidity approach for alveolar ridge preservation.
Area of Science:
- Dental Implantology
- Periodontology
- Oral Surgery
Background:
- Loss of the buccal bone plate in the anterior maxilla post-extraction presents a challenge for alveolar ridge preservation.
- Maintaining clot stability and preventing gingival collapse are critical for successful bone regeneration.
Purpose of the Study:
- To evaluate the efficacy of the prosthetically-driven alveolar reconstruction (PDAR) technique for post-extraction alveolar bone reconstruction.
- To assess bone formation and gingival margin stability following PDAR treatment.
Main Methods:
- PDAR technique utilizing a partial fixed provisional prosthesis (PFPP) with a specialized pontic to stabilize the clot.
- Evaluation of gingival recession over a 6-month healing period.
- Cone beam computed tomography (CBCT) and panoramic imaging for bone measurements before and after treatment.
Main Results:
- Significant bone formation observed in all 12 patients, with a mean vertical gain of 7.1±3.7 mm and horizontal gain of 4.5±1.4 mm in the alveolar bone crest.
- High reliability of CBCT measurements (intraclass correlation coefficient = 0.999).
- No clinically significant gingival recession (>1 mm) was noted post-treatment.
Conclusions:
- PDAR promotes alveolar bone formation effectively without the need for flaps, grafts, or membranes.
- The technique offers a lower-morbidity alternative for alveolar ridge regeneration and preservation.
- The specialized pontic design contributes to clot stability and prevents gingival margin collapse.
