Achondroplasia is the most common cause of dwarfism, which is inherited as an autosomal dominant disorder, caused by genetic mutation in fibroblast growth factor 3, leading to defective maturation of chondrocytes. It is known to be associated with various oral and dental manifestations such as delayed dental development, midfacial hypoplasia and constricted maxilla with a relatively large mandible, resulting in skeletal/dental Class III malocclusion, posterior crossbite, anterior reverse jet and anterior overbite. However, the association of achondroplasia with talon cusp and supernumerary teeth has never been reported in the literature. Wehereby reported a case of achondroplasia associated with such unusual findings. Moreover, all the three variants of talon cusp, i.e., "true talon,""semitalon" and "trace talon" are observed in the present case, which makes it a unique one. Further double talon cusps were noticed in the palatal aspect of maxillary central incisors.
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http://dx.doi.org/10.4103/1735-3327.208769 | DOI Listing |
Am J Orthod Dentofacial Orthop
January 2025
School of Dentistry, University of Michigan, Ann Arbor, Mich.
Introduction: Accuracy and user experience of dental diagnosis for a patient with cleidocranial dysplasia (CCD) using immersive virtual reality (VR) and cone-beam computed tomography multiplanar reconstruction methods were evaluated.
Methods: Dental students (n = 40) were randomly assigned to VR or MP groups. VR participants manipulated and visualized the rendered 3-dimensional model using VR hardware and software.
BMC Oral Health
December 2024
Nepalese Army Institute of Health Sciences, College of Medicine, Kathmandu, Nepal.
Background: Supernumerary teeth, defined as extra teeth beyond the normal series of dentition, can appear anywhere in the dental arch. They may present as solitary or multiple, unilateral or bilateral, and can be either erupted or impacted. Rarely, supernumerary teeth are found in ectopic locations outside the dental arches, such as the nasal cavity, inferior nasal conchae, maxillary sinus, ethmoid sinus, or skull.
View Article and Find Full Text PDFHealthcare (Basel)
November 2024
Department of Endodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
Background: Epidemiological studies have shown varying prevalence rates of dental anomalies worldwide, ranging from 5.2% to 56.9%, with a higher rate of 90.
View Article and Find Full Text PDFAm J Orthod Dentofacial Orthop
December 2024
Department of Oral Medical Imaging, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. Electronic address:
Introduction: Cleidocranial dysplasia (CCD) is a genetic disorder characterized by distinctive oral manifestations, making dental anomalies a key diagnostic criterion and treatment focus.
Methods: We retrospectively enrolled 32 patients diagnosed with CCD with detailed dental records (19 males and 13 females; mean age, 20.5 years).
J Transl Med
December 2024
Department of Physiology, Center of Excellence in Genomics and Precision Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
Cleidocranial Dysplasia (CCD) is a rare genetic disorder characterized by skeletal abnormalities and dental anomalies, primarily caused by variants in the RUNX2 gene. Understanding the spectrum of RUNX2 variants and their effects on CCD phenotypes is crucial for accurate diagnosis and management strategies. This systematic review aimed to comprehensively analyze the genotypic and phenotypic spectra of RUNX2 variants in CCD patients, assess their distribution across functional regions, and investigate genotype-phenotype correlations.
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