Comparative evaluation of salivary immunoglobulin a levels between pedodontic subjects

Armed to the Teeth-The Oral Mucosa Immunity System and Microbiota

The oral cavity is inhabited by a wide spectrum of microbial species, and their colonization is mostly based on commensalism. These microbes are part of the normal oral flora, but there are also opportunistic species that can cause oral and systemic diseases. Although there is a strong exposure to various microorganisms, the oral mucosa reduces the colonization of microorganisms with high rotation and secretion of various types of cytokines and antimicrobial proteins such as defensins. In some circumstances, the imbalance between normal oral flora and pathogenic flora may lead to a change in the ratio of commensalism to parasitism. Healthy oral mucosa has many important functions. Thanks to its integrity, it is impermeable to most microorganisms and constitutes a mechanical barrier against their penetration into tissues. Our study aims to present the role and composition of the oral cavity microbiota as well as defense mechanisms within the oral mucosa which allow for maintaining a balance between such numerous species of microorganisms. We highlight the specific aspects of the oral mucosa protecting barrier and discuss up-to-date information on the immune cell system that ensures microbiota balance. This study presents the latest data on specific tissue stimuli in the regulation of the immune system with particular emphasis on the resistance of the gingival barrier. Despite advances in understanding the mechanisms regulating the balance on the microorganism/host axis, more research is still needed on how the combination of these diverse signals is involved in the regulation of immunity at the oral mucosa barrier.

The effect of Kneipp treatment hydrotherapy on secretory IgA in young children: A controlled, non-randomized clinical pilot study

OBJECTIVES

This pilot study analyses the effect and feasibility of hydrotherapeutic Kneipp arm affusions on secretory immunoglobulin A (sIgA) and classic cold symptoms in children 3-6 years of age.

STUDY DESIGN

A controlled, non-randomized, clinical pilot study was undertaken.

INTERVENTION

This descriptive hydrotherapeutic intervention treated children aged 3-6 with Kneipp arm affusions over four weeks. The control group received no intervention. At baseline and after the intervention, secretory IgA was measured, cold symptoms were assessed by means of the Common Cold Questionnaire (CCQ), and a semi-structured follow-up qualitative interview of the parents in the intervention group was conducted on acceptance and susceptibility to infection of the respiratory tract.

RESULTS

Fifteen participants were included in the intervention group and 15 were in the control group. The Kneipp arm affusions intervention was conducted at home and well-accepted by the children. No differences developed between the groups regarding sIgA. Comparing the symptoms by means of CCQ did not show symptoms of respiratory tract infections. In the intervention group, rhinitis occurred less frequently (26.7 % vs. 66.7 %, p = 0.057). In the qualitative analysis, 9/13 parents described an improvement in susceptibility to infections of the respiratory tract.

CONCLUSION

Due to the pilot character of this study, home hydrotherapy (Kneipp arm affusions) in healthy children is feasible but did not influence sIgA levels. The influence on infections of the respiratory tract after the intervention phase should be interpreted carefully. In qualitative interviews, parents described less susceptibility to infections of the respiratory tract by their children.