Subperiosteal orbital abscess from odontogenic origin: A case report

•Subperiosteal orbital abscess is a rare complication of a dental infection.•Antibiotics alone are ineffective and do not guarantee arrest of the infection spread.•The possible route of infection spread should be determined, and is illustrated in this report.•Postseptal infections require a more aggressive approach compared to preseptal infections.•In case of an orbital infection, intraoral examination and dental radiography may not be overlooked.