Bilateral coronoid hypoplasia and complex odontoma: a rare concurrence of developmental pathology and odontogenic tumour of the mandible

Abstract

SUMMARYWe present a rare case of concurrent bilateral coronoid hypoplasia and complex odontoma in the mandible, with replacement of missing posterior teeth in both sides of the lower jaw. A 20-year-old woman was diagnosed with bilateral occurrence of coronoid hypoplasia and unerupted complex odontoma after radiographic and histopathological examination. The patient was surgically treated with complete removal of the unerupted complex odontoma and prosthetic replacement of the missing teeth. BACKGROUND

Coronoid hypoplasia with developmental anomaly: A rare clinical-radiographic finding

“…6 In 2002, Nedim et.al found case of isolated bilateral mandibular coronoid hypoplasia in 33 year old female. 7 Other two cases were reported in 2015, Kudva et.al reported case of an isolated bilateral coronoid hypoplasia in 24 year old male 4 and case of bilateral coronoid hypoplasia associated with complex odontoma in 20 year old female patient is reported by Mohd et al 5 congenital deformities and developmental abnormalities of mandibular condyle can be classified as hypoplasia or aplasia, hyperplasia, and bifidity. Hypoplasia or aplasia of the mandibular condyle indicates underdevelopment or non development associated with various craniofacial abnormalities.…”

“…However, it has also been suggested that coronoid hypoplasia may occur in individuals with unchanged muscle activity. 4,5 There is no definite clinical findings and management of coronoid hypoplasia is mentioned in different litretures. As per our knowledge, only four cases of coronoid hypoplasia is reported in litreture till now.…”

“…Three dimensional imaging in form of CT or Cone Beam Computed Tomography (CBCT) must be considered in the investigation of osseous morphology of TMJ.In the present case report, clinical and radiographic features were similar to the cases discussed in various litretures. [4][5][6][7]9 Various treatment approaches have been proposed. It is treated by multimode with the help of oral surgeon, general surgeon, plastic surgeon, and orthodontist.…”

Shifting the Spotlight From the Mandibular Condyle to the Coronoid Process: A Report of a Unique Case of Trifid Mandibular Coronoid Process

“…It is a rare entity that is usually considered as a developmental abnormality and can also be associated with Melnick-Needles syndrome, which is an osteodysplasia, characterized by generalized bony alterations. It has also been suggested that coronoid hypoplasia is due to the activity of the temporalis muscle in prenatal and early postnatal life, but it can occur with unchanged muscle activity also [ 8 ].…”