Initial caries lesions can be managed using non-invasive treatment approaches that promote remineralization and prevent lesion progression. Ozone therapy has been suggested as an adjunctive treatment because of its antimicrobial properties and its potential to enhance remineralization.

This randomized controlled clinical trial aims to evaluate the effect of ozone therapy on the remineralization of initial caries lesions in children. Participants will be randomly assigned to receive either ozone therapy followed by application of a remineralizing gel or application of the remineralizing gel alone.

Changes in lesion status will be assessed over time using clinical and optical evaluation methods. The results of this study may contribute to the development of evidence-based minimally invasive approaches for the management of early caries lesions in pediatric patients.

Dental caries remains one of the most common chronic diseases affecting children worldwide. Initial non-cavitated caries lesions represent a reversible stage of the disease and provide an opportunity for non-invasive treatment through remineralization strategies.

Ozone therapy has attracted interest in pediatric dentistry because of its antimicrobial effects and its potential to improve conditions for remineralization. However, evidence regarding its clinical effectiveness as an adjunct to remineralizing agents remains limited.

The aim of this prospective randomized controlled clinical trial is to evaluate the effectiveness of ozone therapy in the management of initial caries lesions in children.

Eligible participants with initial non-cavitated caries lesions will be randomly allocated to one of two study groups. The intervention group will receive ozone therapy followed by application of ROCS Medical Minerals remineralizing gel, while the control group will receive ROCS Medical Minerals remineralizing gel alone.

Participants will be evaluated at baseline and during follow-up visits according to the study protocol. Changes in lesion characteristics and remineralization outcomes will be monitored using clinical and optical assessment methods.

The primary objective of the study is to determine whether adjunctive ozone therapy provides additional benefit in promoting remineralization compared with remineralizing gel alone. The findings may provide further evidence regarding minimally invasive management of early caries lesions in children.

Inclusion Criteria Children aged 6-12 years. Presence of at least one initial non-cavitated caries lesion. Systemically healthy children. Frankl Behavior Rating Scale score of 3 or 4. Written informed consent obtained from the parent or legal guardian. Exclusion Criteria Cavitated caries lesions requiring restorative treatment. History of allergy to any study material. Systemic diseases affecting oral health or salivary flow. Respiratory diseases (e.g., asthma) contraindicating ozone therapy. Use of medications affecting salivary flow or enamel remineralization. Uncooperative children (Frankl score 1 or 2). Parent or guardian unwilling to participate or unable to attend follow-up visits.