Aim and objective: We aim to emphasize the conservative management of infraorbital abscess secondary to dens invaginatus type IIIB. Background: Dens invaginatus (DI) is a developmental anomaly related to the morphological characteristic of the teeth. It occurs due to the invagination of developing enamel organs in the dental papilla before the complete calcification of the tooth. Case description: We report a case of a 13-year-old child reported with swelling on the right side of the face. Radiographic examination revealed the altered tooth morphology and complex root canal anatomy with periapical abscess associated with the permanent right maxillary canine. Debridement and obturation were done by lateral compaction technique with no surgical intervention for the treatment of infraorbital space infection. Conclusion: The proper three-dimensional evaluation of DI helps in identifying the root canal morphology and aids in efficient treatment planning. The obturation with mineral trioxide aggregate is a suitable method for treating DI especially in the case of immature teeth. The accurate diagnosis and proper treatment can prevent an unnecessary surgical intervention and has shown a favorable prognosis in the long term. Clinical significance: Nonsurgical management of odontogenic infections should be the preferred line of treatment, wherever feasible, because of the invasive nature of its surgical alternative. This becomes even more relevant when the patient involved belongs to the pediatric age-group which would make a surgical treatment plan all the more challenging.