Dentin xenografts to experimental bone defects in rabbit tibia are ankylosed and undergo osseous replacement

Dental Traumatology : Official Publication of International Association for Dental Traumatology
Lars Andersson

Abstract

After trauma and losses of teeth, bone augmentation with bone grafts or bone replacement material is sometimes required before implant treatment. The ideal bone replacement material has not yet been characterized. Dentin is known to undergo ankylosis and replacement resorption after replantation of teeth. Dentin has also been shown to contain bone morphogenic protein. These properties may possibly be used making dentin an alternative or supplement to bone grafting to defect areas prior to treatment with osseointegrated implants. The aim of this study was to investigate if dentin is ankylosed and replaced by newly formed bone when transplanted to bone defects. Ten New Zealand rabbits were used for the experiment. The rabbits were subjected to surgical exposure and preparation of bone cavities in the tibia bilaterally. Dentin blocks from human premolars extracted for orthodontic reasons were used as grafts. Dentin blocks were inserted in the cavities penetrating into the marrow space in 16 tibias. Four tibias were prepared with the same cavities, but without being subjected to dentin grafting and served as controls. Five rabbits were sacrificed after 3 months and five rabbits after 6 months. Histological processing and evaluation...Continue Reading

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Citations

Jun 29, 2011·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Arne MordenfeldSven Lindskog
Apr 12, 2011·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Jens O Andreasen, Lars Andersson
Sep 3, 2013·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Adel Al-AsfourChrister Dahlin
Mar 7, 2014·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Xu QinBin Zhou
Apr 30, 2013·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Adel Al-AsfourBobby Joseph
May 14, 2016·Journal of Clinical Periodontology·Frank SchwarzJürgen Becker
Jul 22, 2016·Journal of Clinical Periodontology·Frank SchwarzJürgen Becker
Apr 1, 2017·International Journal of Implant Dentistry·Silvio ValdecMartin Rücker
Dec 17, 2016·Implant Dentistry·Adel Al-AsfourLars Andersson
May 21, 2020·Frontiers in Bioengineering and Biotechnology·Xue FengChangyou Gao
May 8, 2018·Dentistry Journal·José Luis Calvo-GuiradoRafael Arcesio Delgado-Ruiz
Apr 4, 2021·International Journal of Environmental Research and Public Health·Michael Korsch, Marco Peichl

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