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Adenoid Hypertrophy and Oral Breathing: A Case Report

N. Pandiyan, K. K, Gowsalya Sudhakaran

Journal of Dental Health and Oral Research, 2026

Abstract

Background: Adenoids are lymphoid tissues located on the posterior wall of the nasopharynx and form part of Waldeyer’s ring. Adenoid Hypertrophy (AH) is a common condition in children, often resulting from recurrent infections and chronic antigenic stimulation. It can lead to nasal airway obstruction, resulting in mouth breathing, snoring, sleep-disordered breathing and even craniofacial changes if left untreated. The prevalence of AH in children varies between 34.5% and 70%, depending on diagnostic criteria and population studied.

Case Presentation: An 11-year-old boy reported to the ENT outpatient department with complaints of persistent snoring for one year, associated with mouth breathing and nasal obstruction. On clinical examination, the patient exhibited features of adenoid facies, including dull, expressionless appearance, open-mouth posture, sunken eyes, crowding and protrusion of anterior teeth, loss of nasolabial folds and a high-arched palate. Nasopharyngoscopic examination revealed Grade 3 adenoid hypertrophy. Lateral soft-tissue neck radiograph confirmed adenoid enlargement causing nasopharyngeal airway narrowing. The patient underwent endoscopy-assisted adenoidectomy with bilateral tonsillectomy under general anesthesia. Postoperatively, fluid was suctioned from the middle ear and the recovery was uneventful. On follow-up after three months, the patient demonstrated complete resolution of mouth breathing and snoring.

Conclusion: This case highlights the…

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