Purpose: This clinical report presents and describes the case where the minimally invasive infiltrant resin technique was used for hypoplasia white stains related to traumatic dental injuries. Results: The Hypoplastic stains showed visually perceptual improvements. The general clinical outcomes of the case was considered successful and recovered the patients’ self-esteem. Conclusion: Based on the results obtained, it could be concluded that the resin infiltration technique shows promising results and could be considered a minimally invasive procedure for mild-to-moderate fluorosis and hypoplasia stains. Clinical significance • This case study allows a better understanding of the concept of resin infiltration technique applied in hypoplastic and porous lesions • Increasing its use as a therapeutic alternative for esthetic purposes in the philosophy of minimally invasive dentistry. • This treatment aims upon both prevention of caries progression and improving aesthetics by diminishing the opacity.