Periodontal regeneration of human infrabony defects. II. Re-entry procedures and bone measures

J Periodontol. 1993 Apr;64(4):261-8. doi: 10.1902/jop.1993.64.4.261.

Abstract

This paper evaluates the osseous healing response of 40 infrabony defects treated with guided tissue regeneration. The selected sites presented with deep periodontal lesions with a 1-, 2-, and 3-wall combination infrabony component of 6.1 +/- 2.5 mm. Baseline intrasurgical clinical measurements were compared with intrasurgical clinical measurements obtained at the 1 year surgical re-entry. A significant regeneration of bone of 4.3 +/- 2.5 mm was observed, along with a 0.4 +/- 1.9 mm resorption of the alveolar bone crest, which resulted in a 4.7 mm reduction of the original infrabony defect. Almost 90% of the sites showed a bone gain of 2 mm or more, while no site lost supporting bone; 73 +/- 31.2% of the original defect was filled with bone. The 3- and 2-wall components were filled 95 +/- 6.2% and 82 +/- 18.7% of their original depth, respectively; however, the 1-wall component was filled only 39 +/- 62.4%. It is concluded that treatment of infrabony defects according to the principles of guided tissue regeneration and a strict plaque control regimen resulted in clinically significant and highly predictable bone regeneration.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Alveolar Bone Loss / surgery*
  • Bone Regeneration*
  • Dental Plaque Index
  • Female
  • Follow-Up Studies
  • Guided Tissue Regeneration, Periodontal*
  • Humans
  • Male
  • Membranes, Artificial
  • Middle Aged
  • Periodontal Index
  • Polytetrafluoroethylene
  • Treatment Outcome

Substances

  • Membranes, Artificial
  • Polytetrafluoroethylene