Syndromes/Craniofacial Anomalies
X-linked hypophosphatemia, previously known as “hypophosphatemic rickets” or “vitamin D-resistant rickets,” is a rare hereditary disorder that occurs when levels of the mineral phosphorus are low in the body due to phosphorus being abnormally excreted in urine. This is a case of a 32-month-old female that was referred from a general dentist’s office to the University of California San Francisco (UCSF) pediatric dental clinic for dental care due to the patient’s clinical diagnosis of X-linked hypophosphatemia. The patient was diagnosed with severe early childhood caries, and due to her young age and medical condition, treatment was recommended and completed in the dental clinic using the Silver Modified Atraumatic Restorative Technique (SMART). The infrequency in which X-linked hypophosphatemia is encountered necessitates proper recognition by the dentist to ensure appropriate treatment and prevention that will maximize the patient’s quality of life.