Guided Bone Regeneration Using Demineralized Dentin Matrix: Long-Term Follow-Up

Area of Science:

• Oral surgery
• Regenerative medicine
• Dental implantology

Background:

• Autogenous tooth bone graft material (AutoBT) is used for guided bone regeneration.
• Long-term clinical outcomes of AutoBT require further investigation.

Purpose of the Study:

• To review the long-term clinical outcomes of AutoBT in 5 cases.
• To assess bone maintenance and resorption after AutoBT grafting.

Main Methods:

• Cone-beam computerized tomography (CBCT) for bone height and width measurements.
• Histological evaluation of corticocancellous bone formation and marginal bone resorption.
• Average follow-up period of 5 years and 5.8 months.

Main Results:

• Bone area changes ranged from -8.1% to -36.2%.
• Buccal height and alveolar ridge width decreased between -0.4 to -3.3 mm and -0.4 to -4.2 mm, respectively.
• Successful maintenance of corticocancellous bone with minimal resorption (1 mm) in one case.

Conclusions:

• AutoBT demonstrates successful long-term maintenance of regenerated bone for implant placement.
• Results are consistent with short-term AutoBT studies.
• Further research with larger sample sizes is warranted.