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Erupting third molars and salivary lactobacilli and Streptococcus mutans counts
Scandinavian Journal of Dental Research
|February 1, 1987
Summary
Higher salivary counts of lactobacilli and Streptococcus mutans were found in students with partly erupted third molars. This finding is crucial for interpreting oral microbial levels in young adults.
Area of Science:
- Oral microbiology
- Dental health
Background:
- Salivary bacteria, including lactobacilli and Streptococcus mutans, are key indicators of oral health.
- Third molar eruption status can influence the oral microenvironment.
Purpose of the Study:
- To investigate the relationship between salivary lactobacilli and Streptococcus mutans counts and the eruption status of third molars in university students.
Main Methods:
- Salivary bacterial counts of lactobacilli and Streptococcus mutans were assessed in 217 university students.
- Third molar eruption status (lacking, partly erupted, fully erupted) was recorded.
- Salivary flow rate and buffering capacity were also measured.
Main Results:
- Significantly higher counts of both lactobacilli and Streptococcus mutans were observed in students with one or more partly erupted third molars.
- No correlation was found between bacterial counts and salivary flow rate or buffering capacity.
- The eruption status of third molars was the primary factor associated with elevated bacterial levels.
Conclusions:
- Partly erupted third molars are associated with increased salivary counts of lactobacilli and Streptococcus mutans.
- These findings necessitate considering third molar status when evaluating salivary microbial profiles in young adults.
- Oral hygiene and dietary counseling should specifically address the implications of third molar eruption.