Aim: Fusion defects of maxilla and mandible are a rare congenital anomaly that affect the growth and development of patients in varying extents. Authors intend to present a case of incomplete synechiae of the oral cavity. Background: Congenital maxillo-mandibular fusions present with varying degree of involvement of mucosa, soft tissues and bone and can cause aerodigestive problems in the neonatal period. Case description: A 5-day-old male child was referred from pediatrics for evaluation for complaints of inability to feed. On examination, a mucosal band was noted connecting the floor of the mouth with the hard palate, with free margins on both sides. After proper consent, the mucosal band was completely excised under local anesthesia and hemostasis was achieved. The rest of the oral cavity and oropharynx was normal except cleft palate. Conclusion: These types of anomalies have to be diagnosed as early as possible in the early neonatal life. Early diagnosis and appropriate management should be instituted to prevent risks of asphyxia, aspiration pneumonitis, growth retardation, malnutrition, facial growth abnormalities, and improper eruption of teeth. Clinical significance: As there are various types of presentations, the treatment needs to be individualized.