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Modified 3-Dimensional Alveolar Ridge Augmentation in the Anterior Maxilla: A Prospective Clinical Feasibility Study.

Behnam Shakibaie1, Hamoun Sabri2, Markus Blatz3

  • 1Specialized Clinic in Microscopic Dentistry, Tehran, Iran.

The Journal of Oral Implantology
|February 13, 2024
PubMed
Summary

This study modified Khoury's technique for 3D alveolar ridge regeneration in the anterior maxilla. The modified technique achieved significant bone gain, offering a feasible solution for complex dental reconstructions.

Keywords:
alveolar ridge augmentationautograftsbone regenerationdental implantsridge augmentation

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Area of Science:

  • Dentistry
  • Oral and Maxillofacial Surgery
  • Regenerative Medicine

Background:

  • Alveolar ridge reconstruction, particularly in the anterior maxilla, presents significant clinical challenges.
  • A standardized technique for three-dimensional (3D) bone regeneration in this area is lacking.
  • Existing methods often struggle to achieve predictable outcomes for complex defects.

Purpose of the Study:

  • To modify Khoury's technique for enhanced 3D alveolar ridge reconstruction in the anterior maxilla.
  • To evaluate the clinical feasibility and outcomes of this modified technique.
  • To address the limitations of current bone grafting procedures in challenging anatomical sites.

Main Methods:

  • A modified Khoury's technique was employed, combining autogenous bone blocks harvested from the retromolar area with xenogenic bone particles.
  • Grafts were stabilized using mini-screws, and the defect was covered with resorbable collagen membranes.
  • Cone-beam computerized tomography (CBCT) was used to assess ridge dimensions at 6-month follow-ups in five subjects.

Main Results:

  • Radiographic analysis at 6 months showed an average gain of 1.2 mm in height and 3.5 mm in width.
  • A minor degree of resorption (2 mm height, 0.3 mm width) was observed between 4 and 6 months post-surgery.
  • No surgical complications were reported during the study period.

Conclusions:

  • The modified Khoury's technique provides a feasible approach for 3D alveolar ridge reconstruction in the anterior maxilla.
  • This method can achieve substantial bone augmentation without requiring additional autogenous bone grafts.
  • The technique shows promise for managing complex bone deficiencies in challenging maxillary regions.