牙周牵张成骨拔牙法位点保存效果的对比研究

Abstract

Abstract: Objective This study evaluates the effect of site preservation on the preservation amount of alveolar bones to keep their height and width to a greater extent, using dentoalveolar distraction extraction (DDE). Methods Twelve beagle dogs were randomly divided into three groups. In experimental group extract the third premolars on one side of mandible, with dentoalveolar distraction, In control group 1 the third premolars were extracted traditionally without any site preservation as control group one (Natural healing, NH). For the other four dogs, the third premolars on one side of mandible were extracted as control group 2, following the Bio-Oss bone dust implant and guided bone regeneration (Bio-Oss +GBR, BOG). The X-rays were taken three months after tooth extraction, and the results were compared among different groups. Results Three months after tooth extraction, the alveolar bone resorption in the experimental group was significantly lower than that in the control groups 1 and 2. there was no statistical significance between the control groups 1 and 2. Conclusion The alveolar bone can be preserved to a greater extent by using dentoalveolar distraction extraction for site preservation.

Key words: alveolar ridge preservation, bone dust implant, dentoalveolar distraction extraction

CLC Number:

R782.1

References

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Contrastive study on alveolar ridge preservation: Tooth extraction through dentoalveolar distraction

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