Dentofacial Deformities Clinical Trial
Official title:
Natural History of Craniofacial Anomalies and Developmental Growth Variants
Background: Some head and facial abnormalities are rare and present at birth. Others are more common, and may not show up until puberty. These conditions have different causes and characteristics. Researchers want to learn more about these conditions by comparing people with face, head, and neck abnormalities to family members and to healthy volunteers without such conditions. Objectives: To learn more about abnormal development of the face, head, and neck. To determine their genetic variants. Eligibility: People who have not had surgery for facial trauma: People ages 2 and older with craniofacial abnormalities (may participate offsite) Unaffected relatives ages 2 and older Healthy volunteers ages 6 and older Design: Participants will be screened with medical history and physical exam focusing on head, face, and neck Participants may be followed for several years. Visits may require staying near the clinic for a few days. A visit is required for the following developmental stages, along with follow-up visits: Age 2-6 Age 6-10 Age 11-17 Age 18 and older Visits may include: Medical history Physical exam Questionnaires Oral exam Blood and urine tests Cheek swab: a cotton swab will be wiped across the inside of the cheek several times. Cone beam CT scan (CBCT): x-rays create an image of the head, face, teeth, and neck. Participants will stand still or sit on a chair for about 20 minutes while the scanner rotates around the head. Photos of the head and face Offsite participants will provide: Copies of medical and dental records Leftover tissue samples from previous surgery Blood sample or cheek swab
Study Description: This is a natural history study that will examine craniofacial anomalies that affect the normal development of the facial skeleton, including birth defects and dentofacial developmental abnormalities that express themselves with the growth of the individual. Craniofacial anomalies may be rare and present at birth, such as hemifacial microsomia (1 in every 7500 live births), or common, such as dentofacial deformities including the Habsburg Jaw or mandibular prognathism (1% of the US population) that becomes apparent as a child enters puberty. These are striking disorders as they involve the face and surrounding structures, which is a focal point of self-identity and are intimately tied to quality of life and daily function. Objectives: Primary Objective: To characterize and determine genetic variants of rare and common craniofacial anomalies Secondary Objectives: 1. To establish a curated craniofacial phenomic/genomic database 2. To collect data related to clinically-indicated procedures and care performed at the NIH Endpoints: Primary Endpoint: Phenotypic and genomic characterization of craniofacial anomalies will be performed. Phenotypes from affected subjects and healthy volunteers will be assessed using extensive clinical evaluations, 3D one-beam computed tomography-based geometric morphometric, cephalometric analyses and surface morphology. Genetic variants will be identified through genomic analysis and compared with genetic patterns obtained from healthy volunteers. Secondary Endpoints: To create a database with phenotypic and genetic data, collected from long term follow up of subjects (females and males) with craniofacial disorders and healthy volunteers, and to link the data with their clinical information to understand the craniofacial disorders. ;
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