Journal article
Comparison of allografts and xenografts used for alveolar ridge preservation. A clinical and histomorphometric RCT in humans.
- Serrano Méndez CA Department of Basic Science and Oral Medicine, Universidad Nacional de Colombia, Bogotá, Colombia.
- Lang NP Center for Dental Medicine, University of Zurich, Zurich, Switzerland.
- Caneva M ARDEC Academy, Ariminum Odontologica Srl, Rimini, Italy.
- Ramírez Lemus G Periodontology Specialist Program, Universidad Nacional de Colombia, Bogotá, Colombia.
- Mora Solano G Periodontology Specialist Program, Universidad Nacional de Colombia, Bogotá, Colombia.
- Botticelli D ARDEC Academy, Ariminum Odontologica Srl, Rimini, Italy.
- 2017-05-04
Published in:
- Clinical implant dentistry and related research. - 2017
allograft
alveolar ridge reconstruction
bone grafting
tooth extraction
xenograft
Adult
Allografts
Alveolar Process
Alveolar Ridge Augmentation
Animals
Bone Transplantation
Cattle
Female
Heterografts
Humans
Male
English
BACKGROUND
Several types of bone grafts are used in ridge preservation procedures.
PURPOSE
To compare the healing of allografts and xenografts applied for alveolar ridge preservation.
MATERIALS AND METHODS
Twenty volunteers in need of extraction of a single-rooted tooth prior to implant installation were randomized into two groups. One group received a deproteinized cancellous bovine bone xenograft embedded in a 10% collagen matrix and the other a demineralized freeze-dried cortical bone allograft. A collagen membrane was used to cover the grafts, flaps were sutured. At baseline and 6 months later, clinical measurements including vertical and horizontal bone dimensions were taken. Histomorphometric analysis was performed.
RESULTS
Both groups showed shrinkage of bone dimensions. At mesial, center and distal sites, the vertical changes in dimension were -0.6, 0.5, and -0.1 mm for the allograft and -1.1, -0.4, and -0.9 mm for the xenograft. The horizontal changes in dimensions were -1.4 mm for the allograft and -2.6 mm for the xenograft. New bone and residual graft material were 25.5 ± 10.1% and 33.8 ± 9.4% at the allograft and 35.3 ± 16.8% and 22.2 ± 13.4% at the xenograft sites. None of the differences was statistically significant.
CONCLUSION
Both grafting materials are suitable for the preservation of the alveolar ridge.
Several types of bone grafts are used in ridge preservation procedures.
PURPOSE
To compare the healing of allografts and xenografts applied for alveolar ridge preservation.
MATERIALS AND METHODS
Twenty volunteers in need of extraction of a single-rooted tooth prior to implant installation were randomized into two groups. One group received a deproteinized cancellous bovine bone xenograft embedded in a 10% collagen matrix and the other a demineralized freeze-dried cortical bone allograft. A collagen membrane was used to cover the grafts, flaps were sutured. At baseline and 6 months later, clinical measurements including vertical and horizontal bone dimensions were taken. Histomorphometric analysis was performed.
RESULTS
Both groups showed shrinkage of bone dimensions. At mesial, center and distal sites, the vertical changes in dimension were -0.6, 0.5, and -0.1 mm for the allograft and -1.1, -0.4, and -0.9 mm for the xenograft. The horizontal changes in dimensions were -1.4 mm for the allograft and -2.6 mm for the xenograft. New bone and residual graft material were 25.5 ± 10.1% and 33.8 ± 9.4% at the allograft and 35.3 ± 16.8% and 22.2 ± 13.4% at the xenograft sites. None of the differences was statistically significant.
CONCLUSION
Both grafting materials are suitable for the preservation of the alveolar ridge.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1111/cid.12490
- PMID 28466494
- Persistent URL
- https://sonar.ch/global/documents/217955
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