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Published on: January 21, 2020
Hygiene hypothesis and periodontitis--a possible association
Bhumanapalli Venkata Ramesh Reddy1, Vijay Kumar Chava1, Sreenivas Nagarakanti1
1Department of Periodontology, Narayana Dental College and Hospital, Nellore, Andhra Pradesh 524002, India.
The hygiene hypothesis suggests reduced early-life infections increase allergy risk. Research exploring periodontitis and allergies shows mixed results, indicating a need for more studies on this link.
Area of Science:
- Immunology
- Microbiology
- Periodontology
Background:
- The hygiene hypothesis proposes that decreased exposure to microbes in early childhood leads to increased allergies.
- Evidence supporting the hygiene hypothesis is controversial, and its mechanisms are not fully understood.
- Periodontitis, an inflammatory gum disease, has established links to systemic diseases.
Purpose of the Study:
- To review scientific explanations for the hygiene hypothesis.
- To examine studies on periodontitis and respiratory allergic diseases.
- To highlight the need for further research into the hygiene hypothesis in periodontics.
Main Methods:
- Literature review of the hygiene hypothesis.
- Review of studies investigating periodontitis, asthma, and allergic respiratory diseases.
- Synthesis of current evidence and identification of research gaps.
Main Results:
- The hygiene hypothesis remains debated, with inconclusive evidence.
- Existing studies on periodontitis and allergic diseases yield mixed results, neither confirming nor refuting a protective role.
- There is a significant lack of research exploring the connection between periodontitis and allergic respiratory conditions.
Conclusions:
- The hygiene hypothesis requires further investigation, particularly regarding its relevance to periodontitis.
- The potential protective role of periodontal pathogens in allergic diseases is not well-established.
- Additional research is crucial to elucidate the relationship between periodontitis and allergic diseases.
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