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Related Experiment Videos

Pathogen of root surface caries in the elderly.

T Zhang1, Y Zhang, C Zhang

  • 1Department of Stomatology, Beijing Hospital, Beijing 100730, China.

Chinese Medical Journal
|January 10, 2002
PubMed
Summary

Actinomyces and lactobacillus are key pathogens in elderly root surface caries. This study found higher counts and positive rates of these bacteria in affected individuals.

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Area of Science:

  • Geriatric Dentistry
  • Oral Microbiology

Background:

  • Root surface caries is a prevalent issue in the elderly population.
  • Identifying specific pathogens is crucial for targeted prevention and treatment.

Purpose of the Study:

  • To investigate the primary bacterial pathogens responsible for root surface caries in elderly individuals.
  • To compare bacterial profiles between elderly individuals with and without root surface caries.

Main Methods:

  • Plaque samples were collected from elderly individuals in experimental (caries) and control (no caries) groups.
  • Bacteria were isolated and cultured using selective and non-selective media.
  • Counts and positive rates of specific bacterial groups (total bacteria, Porphyromonas, Prevotella, Streptococcus mutans, Actinomyces, Lactobacillus) were compared.

Main Results:

  • Higher counts of total bacteria, Streptococcus mutans, Actinomyces, and Lactobacillus were observed in the experimental group.
  • Significantly higher positive rates for Actinomyces and Lactobacillus were found in the experimental group compared to the control group.

Conclusions:

  • Actinomyces and Lactobacillus are identified as the main related pathogens contributing to root surface caries in the elderly.
  • These findings highlight the importance of targeting Actinomyces and Lactobacillus in managing root caries in geriatric patients.

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