Iliac Crest Block Grafts for Bone Augmentation
Author Information
Author(s): Mertens Christian DDS, Büsch Christopher MSc, Ristow Oliver MD, DDS, Hoffmann Jürgen MD, DDS, Wang Hom‐Lay DDS, MSD, PhD, Hoffmann Korbinian Jochen DDS
Primary Institution: Heidelberg University Hospital
Hypothesis
Does placing iliac crest block grafts outside the bone contour affect the outcomes of vertical bone gain and marginal bone stability?
Conclusion
Iliac crest block grafts are a reliable treatment option for dental implant placement, and placing them outside the bone contour does not lead to inferior outcomes.
Supporting Evidence
- Mean vertical bone gain was 11.03 mm after 3 months.
- Mean horizontal bone gain was 7.18 mm.
- Marginal bone loss averaged 0.44 mm mesially and 0.49 mm distally.
- Only 1.84% of implants were lost during the observation period.
- Placing grafts outside the contour resulted in greater vertical bone gain.
- Complication rates were low, with no graft failures observed.
- Patients preferred fixed restorations over removable ones.
- All grafts healed successfully after conservative management.
Takeaway
Doctors can use bone from the hip to help fix big holes in the jaw, and it works just as well whether they put the bone inside or outside the jaw's natural shape.
Methodology
The study evaluated patients needing vertical block grafting due to localized bone defects, analyzing bone gain using cone beam computed tomography after 3 months of healing.
Potential Biases
Some heterogeneity in data exists due to the nature of the defects treated.
Limitations
The study is observational and not randomized, which may introduce variability in defect characteristics.
Participant Demographics
Mean age was 44.55 years, with a mean BMI of 25.72; most patients had missing teeth due to trauma or atrophy.
Statistical Information
P-Value
0.006
Confidence Interval
[2.02, 4.40]
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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