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Pulpitis induction in baboon primary teeth using carious dentine or Streptococcus mutans.

P Cleaton-Jones1, M Duggal, R Parak

  • 1Medical Research Council/University of the Witwatersrand Dental Research Institute, Johannesburg, South Africa. cleatonjonesp@dentistry.wits.ac.za

SADJ : Journal of the South African Dental Association = Tydskrif Van Die Suid-Afrikaanse Tandheelkundige Vereniging
|June 25, 2004
PubMed
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This study compared pulpitis induction in baboon primary teeth using Streptococcus mutans versus carious dentine. Both methods produced comparable pulpitis, validating their use for testing dental treatments.

Area of Science:

  • Dental Research
  • Microbiology
  • Pediatric Dentistry

Background:

  • Pulpitis induction is crucial for evaluating dental treatments.
  • Carious dentine is an established method for inducing pulpitis.
  • The efficacy of Streptococcus mutans as an induction agent requires further investigation.

Purpose of the Study:

  • To compare pulpitis induction by Streptococcus mutans versus carious dentine in primary molar teeth.
  • To determine if Streptococcus mutans can serve as a reliable model for pulpitis.
  • To assess the suitability of both methods for testing pulpotomy and pulpectomy procedures.

Main Methods:

  • Occlusal cavities were prepared in 16 primary molar teeth of juvenile baboons.
  • Pulpal exposures were created and either carious dentine or Streptococcus mutans was applied.

Related Experiment Videos

  • Cavities were restored with composite resin, and specimens were analyzed histologically after 14 days.

    • Main Results:

    • Both Streptococcus mutans and carious dentine induced recognizable pulpitis, including hyperaemia and abscess formation.
    • Pulpitis induced by soft caries was more severe than that induced by Streptococcus mutans.
    • Both induction methods resulted in pulpitis suitable for evaluating pulpotomy and pulpectomy treatments.

    Conclusions:

    • Streptococcus mutans can induce pulpitis comparable to carious dentine in primary teeth.
    • Both methods are suitable for preclinical testing of pulpotomy and pulpectomy interventions.
    • This study validates Streptococcus mutans as a viable agent for pulpitis induction models.