Six cranial fontanelles are present in newborns along with cranial sutures. Cranial sutures are a synarthrosis type of joints that occur in the skull after closure of fontanelles. Because of ossification up to 24 months, all fontanelles should be closed. Normal frontal bone consists of only frontonasal, frontozygomatic, frontomaxillaris, frontolacrimalis, and main coronal sutures. Metopic frontal suture occurs very rarely in adults. Some metopic frontal sutures might be related to genetic or general disorders or perhaps are related to an improper ossification. In some cases, it persists as a complete suture extending from the nasion to the anterior angle of the bregma, and this condition is called metopism, or metopic suture. In this article, we present a patient with metopic frontal suture diagnosed accidentally during preparation for bimaxillary orthognathic surgery.
From the *Department of Dental Anatomy, Medical University, Wrocław, Poland; and †Department of Maxillo-Facial Surgery, Silesian Piast’s Medical University, Wrocław, Poland.
Received November 30, 2013.
Accepted for publication December 28, 2013.
Address correspondence and reprint requests to Kamil H. Nelke, DMD, Department of Maxillo-Facial Surgery, Wroclaw Medical University, Borowska 213, 50-556 Wrocław, Poland; E-mail: email@example.com
The authors report no conflicts of interest.
Author contributions: Kamil H. Nelke, Wojciech Pawlak, Wiesław Kurlej, and Hanna Gerber conceived of the study and participated in its design and coordination. Kamil H. Nelke and Wojciech Pawlak made substantial contributions to the conception and design of the manuscript as well as data acquisition. Kamil H. Nelke, Wojciech Pawlak, and Hanna Gerber have been involved in drafting the manuscript. Wiesław Kurlej and Hanna Gerber were involved in revising the manuscript. All authors read and approved the final manuscript.
Authors’ information: The presented authors are working on treatment and diagnostics of dentofacial deformities. Both Departments of Human Anatomy and Maxillo-Facial Surgery are focusing on any head and neck pathologies and combined multidisciplinary surgical treatments.
This article required no approval from an institutional committee because it is not directly related to human care and to treatment of animals used in study.
Ethics statement. Investigation has been conducted in accordance with ethical standards, the Declaration of Helsinki, and national and international guidelines.