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.