Clinical study comparing alveolar distraction using the lead system and MODUS MDO 1.5/2.0.

Area of Science:

• Oral and Maxillofacial Surgery
• Dental Implantology
• Regenerative Medicine

Background:

• Alveolar bone defects pose challenges for dental implant placement.
• Alveolar distraction osteogenesis offers a solution for bone augmentation.
• Comparing intraosseous and extraosseous distractors is crucial for optimizing outcomes.

Purpose of the Study:

• To compare the efficacy and complications of two alveolar distractors: Lead System (LS) and MODUS MDO (M-MDO).
• To evaluate bone gain, mucosal alterations, implant survival, and complications associated with each distractor.

Main Methods:

• Retrospective clinical study of 32 alveolar distraction procedures.
• LS (intraosseous) used in 24 patients; M-MDO (extraosseous) used in 8 patients.
• Analysis included bone height, mucosal changes, implant survival, and complications.

Main Results:

• Mean bone height increase was 6.15 mm (LS: 5.74 mm, M-MDO: 8.36 mm; P < 0.0001).
• 100% implant survival in both groups.
• M-MDO group had 100% mucosal defects; LS group had 0% (P < 0.001).
• Intraosseous group: 25% segment tilting; Extraosseous group: 75% rod interference.

Conclusions:

• Both LS and M-MDO are effective for alveolar bone distraction.
• M-MDO offers greater bone height increase but higher risk of mucosal defects.
• Choice depends on clinical factors: defect size, patient tolerance, surgeon experience.