Background: The causes of mandibular condylar hypoplasia can be congenital or acquired
in nature. Cited local causes of acquired hypoplasia include trauma, infection and irradiation.
We report a case of hypoplastic condyle that was attributed to temporomandibular joint (TMJ) disc
displacement without reduction (DDwoR).
Clinical Presentation: A 16-year-old male presented with restricted mouth opening and right TMJ
pain for 6 months. He was subsequently diagnosed with DDwoR. Conservative treatment comprising
self-care and moist-heat therapy was administered and he was followed for 27 months without
any further interventions. During this period, transitions from “normal” morphology to condylar
flattening / erosion, and eventually a re-modeled smaller “normal” right TMJ were observed.
Conclusion: The present case provided initial support that DDwoR could be a plausible cause of
condylar hypoplasia in adolescents / young adults.
Keywords: Temporomandibular disorders, Condylar hypoplasia, Disc displacement without reduction, Osteoarthritis, Degenerative joint diseases, Condylar remodeling
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