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RecruitingNCT07755111PM26Updated Aug 10, 2026

Effect of Pranayamic Breathing and Tongue Exercises on Oral Microbiota in Children

An interventional study of Pranayamic Breathing and Tongue Exercises in Mouth Breathing and Oral Microbiota, sponsored by Gulcin Ozsen. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 7 Years to 12 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-10.

Sponsored by Gulcin Ozsen · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Mar 2026; still recruiting 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Non-randomized
Ages
7 Years to 12 Years
Sex
All
01

Study summary

This study aims to evaluate the effects of pranayamic breathing techniques and tongue exercises on oral microbiota in children aged 7-12 years. Children will be grouped according to their breathing patterns (mouth or nasal breathing), and a structured breathing and tongue exercise program will be applied. Saliva samples will be collected before and after the intervention to analyze changes in oral microbiota. The study will include approximately 80 participants and is expected to last for 6 months. There are no anticipated risks for participants. The findings of this study may contribute to a better understanding of the relationship between breathing patterns, oral exercises, and oral health in children.

Read the detailed description

This study is designed to investigate the effects of pranayamic breathing techniques, tongue exercises, and tongue cleaning on oral microbiota in children aged 7-12 years. Participants will be classified based on their breathing patterns as mouth breathers or nasal breathers. Each group will undergo a structured intervention program that includes specific breathing techniques, tongue exercises, and, in selected subgroups, tongue cleaning over a defined period.

Saliva samples will be collected from all participants before and after the intervention. These samples will be analyzed using microbiological methods to evaluate changes in oral microbiota composition. The study aims to compare the microbiological outcomes between different breathing patterns and to assess the potential benefits of the applied interventions.

Informed consent will be obtained from all participants and their legal guardians prior to participation. All collected samples and data will be anonymized to ensure participant confidentiality.

This research is expected to provide insights into the relationship between breathing habits, oral functions, tongue hygiene practices, and oral microbial balance in children. The findings may contribute to preventive and therapeutic approaches in pediatric dentistry, particularly in managing the effects of mouth breathing on oral health.

02

Conditions studied

  • Mouth Breathing
  • Oral Microbiota

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Keywords

  • Oral Microbiota
  • Pranayamic Breathing
  • humming exercise
  • Mouth Breathing
  • Tongue Exercises
03

In context

Mouth Breathing

33 studies on the registry are indexed under Mouth Breathing; 4 are open to participants now.

This study's planned enrollment of 80 is above the median of 44 across 24 interventional studies indexed under Mouth Breathing.

Browse Mouth Breathing studies →

Lead sponsor

This is the only study on the registry with Gulcin Ozsen as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
7 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Children aged 7-12 years with either mouth breathing or nasal breathing patterns
  • Willingness of both the child and their legal guardian to participate in the study
  • Children who are cooperative and able to comply with the exercise protocol

Exclusion criteria

Exclusion Criteria:

  • Refusal of the child or legal guardian to participate in the study
  • Presence of active dental caries or periodontal disease
  • Presence of any systemic disease or regular medication use
  • Use of orthodontic appliances
  • Use of antibiotics or probiotics within the last 4 weeks
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    Mouth Breathing Group

    Participants with mouth breathing habits will be included in this group. A structured program consisting of pranayamic breathing techniques, tongue exercises, and, in selected subgroups, tongue cleaning will be applied. Saliva samples will be collected before and after the intervention to evaluate changes in oral microbiota.

    Behavioral: Pranayamic Breathing and Tongue Exercises

  • Experimental
    Nasal Breathing Group

    Participants with nasal breathing habits will be included in this group. A structured program consisting of pranayamic breathing techniques, tongue exercises, and, in selected subgroups, tongue cleaning will be applied. Saliva samples will be collected before and after the intervention to evaluate changes in oral microbiota.

    Behavioral: Pranayamic Breathing and Tongue Exercises

Interventions

  • BehavioralPranayamic Breathing and Tongue Exercises

    Participants will perform a structured program including pranayamic breathing techniques and tongue exercises, and, in selected subgroups, tongue cleaning. The program will be applied regularly over the study period, and saliva samples will be collected before and after the intervention to assess changes in oral microbiota.

06

What researchers measure

Primary outcomes

  1. Change in oral microbiota alpha diversity as measured by the Shannon diversity index from 16S rRNA gene sequencing of saliva samples

    This outcome evaluates the effect of the intervention (pranayamic breathing exercises, tongue exercises, and tongue-cleaning practice) on the diversity of the oral microbiota. Alpha diversity will be assessed from saliva samples using 16S rRNA gene sequencing and quantified using the Shannon diversity index. The mean Shannon index at baseline will be compared with the value after the 8-week intervention, and the change from baseline will be reported.

    Time frame: 8 weeks

Secondary outcomes

  1. Salivary Nitric Oxide Levels

    Salivary nitric oxide levels will be measured using test strips before and after the intervention.

    Time frame: 8 weeks

07

Study locations

1 of 1 sites recruiting
  • Dentistun Oral and Dental Health Center, Istanbul Health and Technology University
    Istanbul, Bahcelievler 34180, Turkey (Türkiye)
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2026 (actual). Primary completion is estimated for Sep 2026, 5 months after the start.

Of 17 interventional studies with no phase under Mouth Breathing, half reached primary completion within 9 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 25. This study's planned 5 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 19, 2026
First posted
Aug 10, 2026
StartActual
Mar 28, 2026
Primary completionEst.
Sep 15, 2026
CompletionEst.
Dec 15, 2026
Last update
Aug 10, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 10, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07755111
Lead sponsor
Gulcin Ozsen
Responsible party
Gulcin Ozsen (Principal Investigator, Istanbul Health and Technology University) — Sponsor-investigator
First posted
Aug 10, 2026
Start date
Mar 28, 2026
Primary completion
Sep 15, 2026 (estimated)
Completion
Dec 15, 2026 (estimated)
Last update
Aug 10, 2026

Study contacts

Gulcin Ozsen, DDS
Contact
gulcinozsen@gmail.com
+90 555 711 99 39
Bugra OZEN, DDS, PhD
Contact
bugra.ozen@istun.edu.tr
+90 5322567227

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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