Histologic Evaluation of the Periodontium of Abutment Teeth in Combination Implant/Tooth Fixed Partial Denture

Igor J. Pesun, David E. Steflik, Gregory R Parr, Philip Jerry Hanes

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The histologic response of the periodontal tissues of teeth rigidly joined to implants with a fixed partial denture was evaluated using light microscopy. The fourth premolar of a dog was connected to implants placed in the first and second premolar position with a fixed partial denture. The restored teeth were under function for periods of 6, 12, 18, and 24 months, with unrestored fourth premolars as controls. The histology of the periodontal ligament on the fourth premolar was found to be similar in the control and the restored teeth. The periodontal tissues contained a minimal amount of inflammatory cell infiltrate. The crestal bone was cortical in nature, showing no periodontal breakdown. The orientation of the periodontal fibers was easily determined, indicating that minimal remodeling had taken place. The number and morphology of the blood vessels were also similar in the control and the treated teeth. The lack of inflammation and stability of the periodontal tissue suggested that the use of combination implant-to-natural-teeth restorations with rigid joints in this animal model does not result in deleterious effects on the periodontal tissues and that the forces placed on the tissues are within the remodeling capabilities of the teeth.

Original languageEnglish (US)
Pages (from-to)342-350
Number of pages9
JournalInternational Journal of Oral and Maxillofacial Implants
Volume14
Issue number3
StatePublished - Dec 1 1999

Keywords

  • Cementum
  • Dental implants
  • Intrusion
  • Light microscopy
  • Osseointegration
  • Periodontal ligament

ASJC Scopus subject areas

  • Oral Surgery

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