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Mechanism of irrigation effects on gingivitis
E S Chaves1, K S Kornman, M A Manwell
1Department of Periodontics, University of Texas Health Science Center at San Antonio.
Journal of Periodontology
|November 1, 1994
Summary
Gingival irrigation with water or chlorhexidine effectively reduced gingivitis and bleeding, with irrigation showing a specific reduction in Prevotella intermedia bacteria. This highlights irrigation as a valuable adjunct for managing gingivitis.
Area of Science:
- Periodontology
- Microbiology
- Preventive Dentistry
Background:
- Gingivitis is primarily caused by plaque, and its control typically involves plaque removal.
- Gingival irrigation, particularly with water, has demonstrated efficacy in reducing gingivitis without a significant reduction in plaque levels.
- The underlying mechanisms of gingivitis reduction via water irrigation warrant further investigation.
Purpose of the Study:
- To explore the potential mechanisms by which gingival irrigation, with water or chlorhexidine, influences gingivitis.
- To compare the effects of different oral hygiene interventions on clinical parameters and microbial profiles in patients with gingivitis.
Main Methods:
- A randomized controlled trial involving 125 patients with gingivitis was conducted.
- Participants were assigned to toothbrushing alone, or toothbrushing combined with chlorhexidine rinse, water irrigation, or chlorhexidine irrigation.
- Clinical assessments (plaque index, gingival index, bleeding on probing, probing depth) and subgingival microbial analysis were performed at baseline and 3/6 months.
Main Results:
- Both chlorhexidine and chlorhexidine irrigation significantly reduced plaque index compared to toothbrushing alone or water irrigation.
- Bleeding on probing showed greater reduction in the chlorhexidine and irrigation groups compared to the toothbrushing-only group.
- Water and chlorhexidine irrigation significantly reduced Prevotella intermedia, a finding not observed with chlorhexidine rinse or toothbrushing alone.
- Gingival index correlated with plaque index in most groups, except for the water irrigation group.
Conclusions:
- Gingival irrigation, with water or chlorhexidine, is an effective adjunct in managing gingivitis, reducing bleeding on probing.
- Water irrigation may exert anti-gingivitis effects through mechanisms independent of plaque reduction, potentially by influencing specific bacterial populations like Prevotella intermedia.
- Further research is needed to fully elucidate the mechanisms of action for water irrigation in gingivitis treatment.