Congenital mandibular coronoid process hyperplasia and associated diseases

Abstract

Coronoid process hyperplasia (CPH) is an oral and maxillofacial surgical disease that can result in restricted jaw movement due to an enlarged and elongated mandibular coronoid process. It is characterized by the painless progressive restriction of unilaterally or bilaterally mouth opening. Clinically, unexplained bilateral CPH is less common and therefore often overlooked or misdiagnosed, and coronoidectomy can be very effective on improving mouth opening. Currently, the exact etiology and mechanism of congenital CPH have not yet been fully understood, but it is generally believed to be genetically related. In this paper, the relationship of the congenital mandibular CPH with the related diseases was examined based on cases collected in our clinic and literature review for the clinical diagnosis and treatment of patients with restricted mouth opening associated with CPH.

Crosstalk between stomatology and medical genetics: Viewpoints of Chinese scholars

“…This special issue comprises nine invited reviews from OGDRD committee members, focusing on congenital dental abnormalities such as hereditary enamel and dentin defects (Dong et al, 2023; Su et al, 2023; Yuan et al, 2023; Zhang et al, 2023), tooth agenesis (Lan et al, 2022), multiple idiopathic cervical root resorption (Wang et al, 2022), craniofacial and oral malformations including non‐syndromic skeletal Class III malocclusion (Zhou et al, 2022), mandibular coronoid process hyperplasia (Wang, 2022), and hemifacial microsomia (Luo et al, 2023).…”

“…Meanwhile, Lan et al (2022) described the syndromes associated with tooth agenesis, including monogenic diseases with mutations in almost 20 genes and several chromosomal anomalies (Lan et al, 2022). Furthermore, Wang et al (2022) comprehensively described 20 systemic diseases or syndromes associated with coronoid process hyperplasia (Wang, 2022). These findings emphasize the importance for dental clinicians to recognize that dental or craniofacial phenotypes may serve as indicators of systemic diseases.…”