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Quantitative Assessment Protocol for Facial Soft Tissue Volumetric Changes with Stereophotogrammetry
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[Evaluation of three-dimensional changes after sinus floor augmentation with DBBM].

Xue-hua Guo1, Qian Jiang, Hong Ruan

  • 1Department of Stomatology, Zhongshan Hospital, Fudan University. Shanghai 200032, China.E-mail:guoguo76@yahoo.com.

Shanghai Kou Qiang Yi Xue = Shanghai Journal of Stomatology
|October 9, 2013
PubMed
Summary

This study assessed dimensional stability of deproteinized bovine bone mineral (DBBM) after sinus floor augmentation. Results show DBBM volume reduced by 19.40% within six months, with the most significant reduction in vertical dimension.

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Area of Science:

  • Dental implantology
  • Biomaterials science
  • Oral surgery

Background:

  • Maxillary sinus floor augmentation is a common procedure to enhance bone volume for dental implants.
  • Deproteinized bovine bone mineral (DBBM) is frequently used as a grafting material.
  • Assessing the long-term dimensional stability of bone grafts is crucial for predictable outcomes.

Purpose of the Study:

  • To evaluate the dimensional stability of deproteinized bovine bone mineral (DBBM) after maxillary sinus floor augmentation.
  • To quantify volumetric and dimensional changes of DBBM grafts over a six-month period.
  • To analyze the specific changes in buccal-palatal, mesial-distal, and vertical dimensions.

Main Methods:

  • Spiral computed tomography (SCT) scans were performed at two weeks and six months post-surgery on 12 patients.
  • Maxillary sinuses were augmented with 100% DBBM via lateral antrostomy.
  • Augmentation volume and dimensional changes were calculated using specialized software (SurgiCase CMF5.0).

Main Results:

  • The mean graft volume reduction was 19.40% within six months.
  • Vertical dimension showed the most significant reduction (14.32%).
  • Buccal-palatal and mesial-distal dimensions exhibited minor reductions of 0.29% and 5.87%, respectively.

Conclusions:

  • DBBM demonstrates a notable volume reduction within six months following maxillary sinus floor augmentation.
  • The vertical dimension is most susceptible to reduction, potentially impacting implant stability.
  • Further research may explore strategies to mitigate graft resorption for improved long-term dimensional predictability.