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J Dent Res 84(8):757-761, 2005
© 2005 International and American Associations for Dental Research

RESEARCH REPORT
Biological

Distraction Osteogenesis May Promote Periodontal Bone Regeneration

J. Faber1,*, R.B. Azevedo2, and S.N. Báo3

1 Private practice, SCN Q.5 bl.A sala 408 BsB Shopping, Brasília, DF, Brazil CEP 70715-900;
2 Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brazil; and
3 Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Brazil;

* corresponding author, jorgefaber{at}terra.com.br.

Distraction osteogenesis has numerous applications in the treatment of conditions affecting the dentofacial complex, from midface advancement to orthodontic tooth movement produced by transversal distraction of the periodontal ligament. The purpose of this study was to test the hypothesis that periodontium can be consistently distracted toward the tooth crown to promote periodontal bone regeneration. After the surgical production of periodontal defects in maxillary canines of 5 mongrel dogs, periodontal bone distraction was performed. Light microscopy was used for histopathological and morphometric analysis. Periodontal bone regeneration occurred in all animals. Periodontal bone regeneration in the distraction sites (Mean ± SD: 5.45 ± 2.01 mm) differed from that in control sites (0.008 ± 0.67 mm; p < 0.0001). Periodontal bone distraction resulted in periodontal bone regeneration. This finding may establish periodontal bone distraction as a new treatment alternative for periodontal defects.

KEY WORDS: distraction osteogenesis • periodontal regeneration • periodontium






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