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Maxillary sinus augmentation: histologic and histomorphometric analysis.

Antonio Barone1, Roberto Crespi, Nicoló Nicoli Aldini

  • 1Department of Biophysical, Medical and Dental Sciences and Technologies, Nanoword Institute, School of Dental Medicine, University of Genova, Italy. barosurg@libero.it

The International Journal of Oral & Maxillofacial Implants
|September 16, 2005
PubMed
Summary
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Combining autogenous bone with corticocancellous pig bone is effective for maxillary sinus augmentation. This mixture shows comparable bone regeneration to using 100% autogenous bone in patients with severely atrophic maxilla.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Regenerative Medicine
  • Dental Implantology

Background:

  • Insufficient bone volume in the posterior maxilla often contraindicates dental implant placement.
  • Maxillary sinus augmentation procedures, like sinus floor lifting and grafting, are common solutions for bone deficiency.
  • Autogenous bone is a traditional grafting material, but its availability can be limited.

Purpose of the Study:

  • To histologically compare the efficacy of 100% autogenous bone versus a 1:1 mixture of autogenous bone and corticocancellous pig bone for maxillary sinus augmentation.
  • To evaluate the bone regeneration potential of a xenograft material in combination with autogenous bone.

Main Methods:

  • Eighteen patients underwent bilateral maxillary sinus augmentation using iliac crest bone.

Related Experiment Videos

  • One sinus received 100% autogenous bone (control), while the contralateral sinus received a 1:1 mixture of autogenous bone and corticocancellous pig bone (test).
  • Bone biopsy specimens were collected after five months during implant placement for histological analysis.

    • Main Results:

    • No surgical complications or signs of maxillary sinus disease were reported post-operatively.
    • Histological analysis revealed no significant differences in bone percentages between the test and control sides.
    • Both grafting materials demonstrated successful bone formation and integration.

    Conclusions:

    • Corticocancellous pig bone particles can be successfully used as a bone graft substitute in a 1:1 mixture with autogenous bone for maxillary sinus augmentation.
    • This combination is a viable option for treating severely atrophic maxilla, offering comparable results to solely autogenous bone.
    • The study supports the use of xenografts in conjunction with autogenous bone for predictable sinus augmentation outcomes.