Abstract
ABSTRACTVitamin D-dependent rickets (VDDR) is a disorder of bone development characterized by softened weak bones. It is of two types–vitamin D-dependent rickets-I (VDDR-I) and vitamin D-dependent rickets type II (VDDR-II).Vitamin D-dependent rickets type II is a rare autosomal recessive disorder. The patients exhibit characteristic clinical features as well as numerous dental manifestations such as hypoplastic teeth, missing teeth, enlarged pulp chambers, and recurrent spontaneous abscesses.The case presented in this article is of vitamin D-dependent rickets type II in a pediatric dental patient who reported with multiple missing teeth and required treatment consisting of restorations and extractions. The aim of the present article is to raise awareness on the characteristics of this disorder, as well as its treatment and dental considerations.How to cite this articleChhonkar A, Gupta A, et al. Oral Rehabilitation of a Pediatric Patient with Vitamin D-dependent Rickets II: A Rare Case Report. Int J Clin Pediatr Dent 2019;12(1):73–75.
Highlights
Vitamin D-dependent rickets (VDDR) is a disorder of bone development characterized by softened weak bones.[1]It is of two types—vitamin D-dependent rickets-I (VDDR-I) and vitamin D-dependent rickets type II (VDDR-II).[1,2]
A 6-year-old male patient reported to the outpatient department of Department of Pedodontics and Preventive Dentistry, Faculty of Dental Sciences, SGT University, Bhudera, Gurugram, with a chief complaint of missing upper and lower front teeth since the past two years
The term ‘Vitamin D Resistant Rickets’ was first used in 1937 by Albright et al.[3] VDDR-II is known as familial hypophosphatemia, vitamin D refractory rickets, and phosphate diabetes.[8]The cause of VDDR-II is vitamin D receptor mutation
Summary
Vitamin D-dependent rickets (VDDR) is a disorder of bone development characterized by softened weak bones.[1]It is of two types—vitamin D-dependent rickets-I (VDDR-I) and vitamin D-dependent rickets type II (VDDR-II).[1,2]. The prevalence rate of VDDR-II is usually reported to be around 1:20,000.4,5VDDR-II is termed as hypophosphatemic vitamin-D resistant rickets.[6]It is characterized by persistent hypophosphatemia and hyperphosphaturea and is associated with decreased renal tubular reabsorption of inorganic phosphates.[4]. It includes hypocalcemia, secondary hypothyroidism, rickets and partial or full alopecia.[3]Dental manifestations include poor calcification of the alveolar bone, fracture and attrition of enamel, hypoplastic dentin.
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