Timing of the first deciduous tooth eruption (incisors) and its related factors in infants: a longitudinal study using Cox’s proportional hazards model

Khalkhali, Hamidreza; Mohammadpour, Marziye; Entezar mahdi, Rasool; Eslamlu, Nazila; Gharaaghaji, Rasool

Volume 6, Issue 2 (April 2020) Journal of Research in Applied and Basic Medical Sciences 2020, 6(2): 59-64 | Back to browse issues page

Mendeley

Zotero

RefWorks

Khalkhali H, Mohammadpour M, Entezar mahdi R, Eslamlu N, Gharaaghaji R. Timing of the first deciduous tooth eruption (incisors) and its related factors in infants: a longitudinal study using Cox’s proportional hazards model. Journal of Research in Applied and Basic Medical Sciences 2020; 6 (2) :59-64
URL: http://ijrabms.umsu.ac.ir/article-1-101-en.html

Timing of the first deciduous tooth eruption (incisors) and its related factors in infants: a longitudinal study using Cox’s proportional hazards model

Hamidreza Khalkhali

, Marziye Mohammadpour

, Rasool Entezar mahdi

, Nazila Eslamlu

, Rasool Gharaaghaji ^*

Department of Biostatistics and Epidemiology, Urmia University of Medical Sciences, Urmia, Iran , rasool1350@yahoo.com

Abstract: (2810 Views)

Background & Aims: The present study was performed to investigate the timing of the first deciduous tooth eruption in infants and its relationship with environmental and nutritional factors such as weight, height, and head circumstance at birth, type of childbirth, duration of breastfeeding, and initiation time of semi-solid food.
Materials & Methods: This study is a prospective study conducted on newborn infants during 2008-2009 years. For these infants, variables such as parental education level, parental ages, type of childbirth, infant's breastfeeding duration, initiation time of semi-solid food, weight, height, and head circumstance at birth, and then the researchers entered the data into the statistical software STATA 12 and analyzed the data by COX regression model.
Results: The mean age of the infants receiving semi-solid food was 0.033 ± 5.99 months, and the mean height of the infants at birth was 0.078 ± 50.26 cm. The mean weight of the newborns at birth was 0.016 ± 3.37 kg. Finally, the mean head circumference of the newborns at birth was 0.062 ± 35.02 cm. By increasing the maternal childbearing age, the eruption time of the first primary tooth increases in the newborns. Furthermore, increasing the age of receiving semi-solid food in infants causes an increase in the eruption time of primary tooth in newborns.
Conclusion: The study uncovered that higher maternal childbearing age, increased duration of breastfeeding, increased age of infants in initiation time of receiving semi-solid food were significantly associated with delayed eruption of the first primary tooth in infants. However, infant's high birth weight had a significant relationship with the earlier eruption of the first primary tooth.

Keywords: deciduous tooth eruption, Breastfeeding, Cox proportional hazards model, child growth

Full-Text [PDF 268 kb] (1894 Downloads)

Type of Study: orginal article | Subject: Special

References

1. Ntani G, Day PF, Baird J, Godfrey KM, Robinson SM, Cooper C, et al. Maternal and early life factors of tooth emergence patterns and number of teeth at 1 and 2 years of age. J Dev Orig Health Dis 2015;6(4):299-307. [DOI:10.1017/S2040174415001130] [PMID] [PMCID]

2. Fatemifar G, Hoggart CJ, Paternoster L, Kemp JP, Prokopenko I, Horikoshi M, et al. Genome-wide association study of primary tooth eruption identifies pleiotropic loci associated with height and craniofacial distances. Hum Mol Genet 2013;22(18):3807-17. [DOI:10.1093/hmg/ddt231] [PMID] [PMCID]

3. Kobayashi TY, Gomide MR, Carrara CF. Timing and sequence of primary tooth eruption in children with cleft lip and palate. J Appl Oral Sci 2010;18(3):220-4. [DOI:10.1590/S1678-77572010000300004] [PMID] [PMCID]

4. Sajjadian N, Shajari H, Jahadi R, Barakat MG, Sajjadian A. Relationship between birth weight and time of first deciduous tooth eruption in 143 consecutively born infants. Pediatr Neonatol 2010;51(4):235-7. [DOI:10.1016/S1875-9572(10)60044-7]

5. Poureslami H, Asl Aminabadi N, Sighari Deljavan A, Erfanparast L, Sohrabi A, Jamali Z, et al. Does Timing of Eruption in First Primary Tooth Correlate with that of First Permanent Tooth? A 9-years Cohort Study. J Dent Res Dent Clin Dent Prospects 2015;9(2):79-85. [DOI:10.15171/joddd.2015.0016] [PMID] [PMCID]

6. Kutesa A, Nkamba EM, Muwazi L, Buwembo W, Rwenyonyi CM. Weight, height and eruption times of permanent teeth of children aged 4-15 years in Kampala, Uganda. BMC Oral Health 2013;13:15. [DOI:10.1186/1472-6831-13-15] [PMID] [PMCID]

7. Neto PG, Falcão MC. Eruption chronology of the first deciduous teeth in children born prematurely with birth weight less than 1500 g. Rev Paul Pediatr 2014;32(1):17-23. [DOI:10.1590/S0103-05822014000100004] [PMID] [PMCID]

8. Afshar H, Kamali Sabeti A, Shahrabi M. Comparison of Primary Molar Crown Dimensions with Stainless Steel Crowns in a Sample of Iranian Children. J Dent Res Dent Clin Dent Prospects 2015;9(2):86-91. [DOI:10.15171/joddd.2014.017] [PMID] [PMCID]

9. Fabris AS, Nakano V, Avila-Campos MJ. Bacteriological analysis of necrotic pulp and fistulae in primary teeth. J Appl Oral Sci 2014;22(2):118-24. [DOI:10.1590/1678-775720130358] [PMID] [PMCID]

10. Memarpour M, Soltanimehr E, Eskandarian T. Signs and symptoms associated with primary tooth eruption: a clinical trial of nonpharmacological remedies. BMC Oral Health 2015;15:88. [DOI:10.1186/s12903-015-0070-2] [PMID] [PMCID]

11. Ramos-Jorge J, Pordeus IA, Ramos-Jorge ML, Paiva SM. Prospective longitudinal study of signs and symptoms associated with primary tooth eruption. Pediatrics 2011;128(3):471-6. [DOI:10.1542/peds.2010-2697] [PMID]

12. Wang XT, Ge LH. [Influence of feeding patterns on the development of teeth, dentition and jaw in children]. Beijing Da Xue Xue Bao 2015;47(1):191-5. [Pub Med]

13. Aktoren O, Tuna EB, Guven Y, Gokcay G. A study on neonatal factors and eruption time of primary teeth. Community Dent Health 2010;27(1):52-6. [Pub Med]

14. Folayan MO, Sowole CA. Association between breastfeeding and eruption of the first tooth in preschool children in Nigeria. Eur J Paediatr Dent 2013;14(1):51-4. [Pub Med]

15. Lunardelli SE, Peres MA. Breast-feeding and other mother-child factors associated with developmental enamel defects in the primary teeth of Brazilian children. J Dent Child (Chic) 2006;73(2):70-8. [Pub Med]

16. Corrêa-Faria P, Martins-Júnior PA, Vieira-Andrade RG, Oliveira-Ferreira F, Marques LS, Ramos-Jorge ML. Developmental defects of enamel in primary teeth: prevalence and associated factors. Int J Paediatr Dent 2013;23(3):173-9. [DOI:10.1111/j.1365-263X.2012.01241.x] [PMID]

17. Galán-Gónzalez AF, Aznar-Martín T, Cabrera-Domínguez ME, Domínguez-Reyes A. Do breastfeeding and bottle feeding influence occlusal parameters? Breastfeed Med 2014;9(1):24-8. [DOI:10.1089/bfm.2013.0027] [PMID]

18. Sahin F, Camurdan AD, Camurdan MO, Olmez A, Oznurhan F, Beyazova U. Factors affecting the timing of teething in healthy Turkish infants: a prospective cohort study. Int J Paediatr Dent 2008;18(4):262-6. [DOI:10.1111/j.1365-263X.2007.00893.x] [PMID]

19. Oziegbe EO, Adekoya-Sofowora C, Folayan MO, Esan TA, Owotade FJ. Relationship between socio-demographic and anthropometric variables and number of erupted primary teeth in suburban Nigerian children. Matern Child Nutr 2009;5(1):86-92. [DOI:10.1111/j.1740-8709.2008.00156.x] [PMID] [PMCID]

20. Haddad AE, Correa MS. The relationship between the number of erupted primary teeth and the child's height and weight: a cross-sectional study. J Clin Pediatr Dent 2005;29(4):357-62. [DOI:10.17796/jcpd.29.4.jl0510371q155847] [PMID]

21. Prokocimer T, Amir E, Blumer S, Peretz B. Birth-Weight, Pregnancy Term, Pre-Natal and Natal Complications Related to Child's Dental Anomalies. J Clin Pediatr Dent 2015;39(4):371-6. [DOI:10.17796/1053-4628-39.4.371] [PMID]