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Published on: February 10, 2014
Short-term evaluation of bioactive glass using the modified osteotome sinus elevation technique.
Hesham H Abdulkarim1, David Douglas Miley, Dwight E McLeod
1*Clinical Assistant Professor, Section of Periodontics, Department of Applied Dental Medicine, Southern Illinois University School of Dental Medicine, Alton, IL. †Associate Professor and Director, Graduate Periodontics, Saint Louis University Center for Advanced Dental Education, St Louis, MO; Southern Illinois University School of Dental Medicine, Alton, IL. ‡Professor, Section of Periodontics, Department of Applied Dental Medicine, Southern Illinois University School of Dental Medicine, Alton, IL. §Assistant Professor, Section of Periodontics, Department of Applied Dental Medicine, Southern Illinois University School of Dental Medicine, Alton, IL.
Bioactive glass (BG) bone grafts experienced a significant 24.6% reduction in height after 6 months in sinus lifts. This dimensional change occurred during healing following sinus bone grafting with simultaneous implant placement.
Area of Science:
- Oral and Maxillofacial Surgery
- Biomaterials Science
- Regenerative Dentistry
Background:
- Sinus bone grafting is crucial for dental implant success in atrophic maxillae.
- Bioactive glass (BG) is a commonly used bone graft material in dental procedures.
- Understanding graft material behavior is essential for predictable outcomes.
Purpose of the Study:
- To evaluate dimensional changes in bioactive glass (BG) after sinus bone grafting.
- To assess BG behavior when used with a modified osteotome technique and simultaneous implant placement.
Main Methods:
- Retrospective analysis of 76 subjects (87 implants) undergoing sinus elevation with BG.
- Radiographic evaluation at implant placement and uncovery to measure BG dimensional changes.
- Assessment of apical height reduction of BG over a 6-month healing period.
Main Results:
- A significant 24.6% reduction in BG apical height was observed after 6 months (P < 0.0001).
- No significant correlation found between graft height reduction and sinus elevation extent, healing time, or implant penetration depth.
Conclusions:
- Bioactive glass exhibits significant dimensional reduction (24.6%) within 6 months post-sinus grafting.
- The observed dimensional changes did not correlate with surgical variables, suggesting intrinsic material properties play a key role.