Riga-fede disease is a rare pediatric condition in which chronic lingual ulceration results from repetitive trauma. Ventral surface of tongue is often the most common site affected. The natal and neonatal teeth have often beaning reported to cause ulceration on the ventral surface of the tongue in neonates and infants. In the present case report 20 days Old female infant presented by parents to the department of endodontic dentistry with Chief complain of an ulcerated area on the ventral surface of tongue, and difficulty in Suckling. Clinical examination revealed a tooth with sharp incisor edge and grade two Mobility. The ventral surface of the tongue showed a 5 × 8 mm ulcer extending from under border of the tongue to lingual frenulum. Feeding and nutrition of the baby was getting affected. Conservative treatment was not effective and was causing delay in the healing In the present case, the extraction of neonatal teeth was selected as treatment of choice, which gave improvement and normalization of feeding. At the follow-up, we confirmed that the lesion was resolved and infant was feeding normally.