Related Experiment Videos
Is early plaque growth rate constant with time?
M Quirynen1, D van Steenberghe
1Department of Periodontology, School of Dentistry, Catholic University of Leuven, Belgium.
Journal of Clinical Periodontology
|May 1, 1989
Summary
Early dental plaque growth in young adults follows an exponential curve, slowing significantly overnight. Tooth surface irregularities influence plaque accumulation, impacting oral hygiene strategies.
Area of Science:
- Oral biology
- Periodontology
- Dental microbiology
Background:
- Understanding early dental plaque formation is crucial for effective oral hygiene.
- Plaque topography and growth dynamics in healthy individuals require further investigation.
Purpose of the Study:
- To investigate early plaque growth and topography in young adults over a 4-day period without oral hygiene.
- To analyze plaque recolonization patterns on different tooth surfaces.
Main Methods:
- 15 young adults with healthy periodontium participated.
- Buccal surfaces of 48 teeth were analyzed over 96 hours after professional cleaning.
- Plaque extension was quantified planimetrically using color slides after plaque disclosure.
Main Results:
- Average plaque coverage reached 27.7% of the tooth surface area by 96 hours.
- Plaque growth exhibited an exponential pattern, with a tendency to saturate at 96 hours.
- Plaque growth rate decreased by up to 50% during nighttime and varied between tooth types.
Conclusions:
- Early plaque growth is influenced by tooth surface irregularities and exhibits diurnal variations.
- Findings suggest that oral hygiene planning should consider tooth surface topography and plaque growth dynamics.