TY - JOUR JF - J-Res-Dent-Maxillofac-Sci JO - J Res Dent Maxillofac Sci VL - 6 IS - 3 PY - 2021 Y1 - 2021/6/01 TI - Comparison of Serum Vitamin D and Calcium Levels Between Children with Longer Than Normal Eruption Time of First Deciduous Tooth and Control Group TT - N2 - Background and Aim: Tooth eruption is a multifaceted physiological process, which can be delayed by factors such as malnutrition. This study aimed to compare the serum levels of vitamin D and calcium in infants with a longer than normal eruption time of the first deciduous tooth with the control group (normal eruption). Materials and Methods: In this case-control study, serum levels of vitamin D in 61 children with a mean age of normal dental eruption in Iranian children (8 months and less) were compared with 61 children with eruption age of more than 8 months. The children were matched in terms of age, sex, place of birth and residence, age of birth, birth weight, and other eruption-related items. Student's t-test, analysis of variance (ANOVA), and chi-square test were used for statistical analysis. Results: The first erupted tooth in all infants was the mandibular incisor. The mean serum level of vitamin D was 38.1±24.1 ng/ml in infants with eruption age of 8 months or less and 40.0±21.5 ng/ml in the group of eruption age over 8 months (P=0.63). Serum calcium level was 10.03±0.55 mg/dl in the first group and 9.92±0.57 mg/dl in the second group (P=0.28). There was no significant relationship between gender, maternal education, A+D supplementation, infant nutrition (breast milk, formula, and combination), and different levels of vitamin D (deficient, inadequate, adequate, and toxic) with the average age of eruption of the first deciduous tooth (P>0.05). Conclusion: It seems that serum vitamin D and calcium levels in this age group do not affect the eruption time of deciduous teeth. SP - 25 EP - 30 AU - Noori Nezhad, A AU - Salem, k AU - Zamanian, M AU - Aghaei, S AD - Pediatric Dentistry Dept, Faculty of Dentistry,Tehran Medical Sciences, Islamic Azad University, Tehran, Iran KW - Eruption KW - Deciduous Tooth KW - Serum KW - Vitamin D KW - Calcium UR - http://jrdms.dentaliau.ac.ir/article-1-311-en.html DO - 10.52547/jrdms.6.3.25 ER -