Elmusrati Areeg, Padilla Mariela
Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, California, USA.
Case Rep Dent. 2025 Aug 26;2025:8940005. doi: 10.1155/crid/8940005. eCollection 2025.
Changes in the size of the coronoid process, due to hyperplasia or hypoplasia, may interfere with the normal range of mouth opening. Coronoid hyperplasia is a rare oral and maxillofacial disease which might result in progressive limitation of mouth opening due to the impingement of an abnormal elongated mandibular coronoid process on the zygomatic arch. This condition presents with clinical challenges due to its nonspecific nature of complaints that present in patients. It is characterized by gradual painless restriction of mouth opening. Currently, the exact etiopathology still remains inconclusive; however, genetic, hormonal, inflammatory, or traumatic influences have been reported. In this paper, the authors present two case reports of adults with suspected unilateral posttraumatic coronoid hyperplasia and developmental condylar hypoplasia that have a history of physical trauma inflicted during adolescence. Provided is a succinct update of literature to highlight the etiopathogenesis, significance of accurate diagnosis, and tailored treatment modalities in achieving favorable outcomes to restore function and esthetics.
由于增生或发育不全导致的冠状突大小改变，可能会干扰正常的开口范围。冠状突增生是一种罕见的口腔颌面部疾病，由于异常伸长的下颌冠状突撞击颧弓，可能导致开口逐渐受限。由于患者主诉的非特异性，这种情况带来了临床挑战。其特征是开口逐渐无痛性受限。目前，确切的病因病理仍尚无定论；然而，已有报道称其与遗传、激素、炎症或创伤影响有关。在本文中，作者报告了两例疑似单侧创伤后冠状突增生和发育性髁突发育不全的成年病例，患者在青春期有身体创伤史。本文简要更新了文献，以强调病因发病机制、准确诊断的意义以及为实现恢复功能和美观的良好效果而量身定制的治疗方式。
