Assessment of decayed, missing, and filled teeth and the influencing factors in 7-10-year-old students in Quchan, Iran, 2020-2021

Document Type : Original Article

Authors

1 PhD Candidate, Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

2 PhD Candidate, Department of Anatomy and Cell Biology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

3 Assistant Professor, Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

10.22122/johoe.2022.195863.1315

Abstract

BACKGROUND AND AIM: Dental caries is considered the most common chronic disease in childhood and decayed, missing, and filled teeth (DMFT) index is regarded as a valuable prognostic factor for oral and dental health in adulthood. Thus, the aim of this study was to describe the prevalence of DMFT and self-care behavior among 7-10-year-old students in Quchan, a city in northeast Iran.
METHODS: A total of 528 students aged 7-10 years old, selected through cluster random sampling, participated in this descriptive cross-sectional study. Demographic information including age, gender, parental educational level, and frequency of tooth brushing was obtained from the participants; DMFT index was recorded after careful oral examination. Data were analyzed using one-way analysis of variance (ANOVA), independent samples t-test, and chi-square test.
RESULTS: In this study, the ratio of girls to boys was 1:1. The overall mean of DMFT was 4.70 ± 3.16, with no significant difference regarding the gender. However, different age ranges presented significant fluctuation in the mean of DMFT value with the significantly highest value observed in 9-year-old and the lowest in 10-year-old students. Moreover, 8.92% of the participants were caries-free (CF), with a significant dominance of girls. The significantly higher CF index was observed in 7-year-old students as compared to the other ages. However, daily tooth brushing or parental educational level showed no significant correlation with DMFT or CF indices.
CONCLUSION: Due to the high prevalence of DMFT reported in this study, a comprehensive plan should be developed to promote children’s oral health. This issue reinforces the need for preventive programs in general policies of the county.

Keywords


  1. Chenicheri S, R U, Ramachandran R, Thomas V, Wood A. Insight into oral biofilm: Primary, secondary and residual caries and phyto-challenged solutions. Open Dent J 2017; 11: 312-33.
  2. Almerich-Torres T, Montiel-Company JM, Bellot-Arcis C, Iranzo-Cortes JE, Ortola-Siscar JC, Almerich-Silla JM. Caries prevalence evolution and risk factors among schoolchildren and adolescents from Valencia (Spain): Trends 1998-2018. Int J Environ Res Public Health 2020; 17(18).
  3. Sistani MMN, Hataminia Z, Hajiahmadi M, Khodadadi E. Nine years' trend of dental caries and severe early childhood caries among 3-6-year-old children in Babol, Northern Iran. Electron Physician 2017; 9(6): 4683-8.
  4. Aggeryd T. Goals for oral health in the year 2000: Cooperation between WHO, FDI and the national dental associations. Int Dent J 1983; 33(1): 55-9.
  5. Campus G, Cocco F, Strohmenger L, Cagetti MG. Caries severity and socioeconomic inequalities in a nationwide setting: Data from the Italian National pathfinder in 12-years children. Sci Rep 2020; 10(1): 15622.
  6. Shaffer JR, Carlson JC, Stanley BO, Feingold E, Cooper M, Vanyukov MM, et al. Effects of enamel matrix genes on dental caries are moderated by fluoride exposures. Hum Genet 2015; 134(2): 159-67.
  7. Zhang T, Hong J, Yu X, Liu Q, Li A, Wu Z, et al. Association between socioeconomic status and dental caries among Chinese preschool children: A cross-sectional national study. BMJ Open 2021; 11(5): e042908.
  8. Elyassi GN, Nasiri P, Malekzadeh SA, Moosazadeh M. Comparison of dental caries (DMFT and DMFS indices) between asthmatic patients and control group in Iran: A meta-analysis. Asthma Res Pract 2021; 7(1): 2.
  9. Fani MM. Evaluation of DMFT index in 11-16 year- old children of Bavanat in 2001. J Dent Shiraz Univ Med Sci 2003; 4(1): 23-30. [In Persian].
  10. Khalid T, Mahdi SS, Khawaja M, Allana R, Amenta F. Relationship between socioeconomic inequalities and oral hygiene indicators in private and public schools in Karachi: An observational study. Int J Environ Res Public Health 2020; 17(23): 8893.
  11. Krejcie RV, Morgan DW. Determining sample size for research activities. Educ Psychol Meas 1970; 30(3): 607-10.
  12. World Health Organization. Oral health surveys: Basic methods. 5th Geneva, Switzerland: WHO; 2013.
  13. Asl Aminabadi N, Balaei E, Pouralibaba F. The effect of 0.2% sodium fluoride mouthwash in prevention of dental caries according to the DMFT index. J Dent Res Dent Clin Dent Prospects 2007; 1(2): 71-6.
  14. Ajami B, Ebrahimi M. Evaluation of oral health status amongst 6-7-year-old children in Mashhad in 2001. J Mashad Dent Sch 2005; 29(3-4): 235-42. [In Persian].
  15. Shahrabi M, Mohandes F, Seraj B. Assessing DMFT index in 12 years old students attending hearing impaired schools in Tehran. J Dent Med Tehran Univ Med Sci 2007; 19(4): 102-6. [In Persian].
  16. Bayat Movahed S, Samadzadeh H, Ziyarati L, Memary N, Khosravi R, Sadr-Eshkevari P. Oral health of Iranian children in 2004: A national pathfinder survey of dental caries and treatment needs. East Mediterr Health J 2011; 17(3): 243-9.
  17. Babaei Hatkehlouei M, Tari H, Goudarzian AH, Hali H. Decayed, missing, and filled teeth (DMFT) index among first-grade elementary students in Mazandaran Province, Northern Iran. Int J Pediatr 2017; 5(6): 5069-77.
  18. Meamar N, Ghazizadeh A, Mahmoodi S. DMFT (decayed, missing and filled teeth) index and related factors in 12- year- old school children in Sanandaj. Sci J Kurdistan Univ Med Sci 2000; 5(1): 30-6. [In Persian].
  19. Mohebi S, Ramezani A, Matlabi M, Mohammadpour L, Noor NS, Hosseini ES. The survey of oral-dental health of grade 3 students of Gonabad primary schools in 2007. Horizon Med Sci 2009; 14(4): 69-76. [In Persian].
  20. Lee SM, Kim HN, Lee JH, Kim JB. Association between maternal and child oral health and dental caries in Korea. J Public Health (Berl) 2019; 27(2): 219-27.
  21. Toumarian L, Souri S, Farhadi H. DMFT index study of 12 year-old students living in Qom City. J Dent Sch Shahid Beheshti Univ Med Sci 2005; 23(3): 467-74. [In Persian].
  22. Mashoto KO. Dental caries, oral-health-related quality of life and atraumatic restorative treatment (ART): A study of adolescents in Kilwa district of Tanzania. Bergen, Norwey: The University of Bergen; 2011.
  23. Rajab LD, Hamdan MA. Early childhood caries and risk factors in Jordan. Community Dent Health 2002; 19(4): 224-9.
  24. Nour Elahian H, Afshari AG. Study of the DMFT index of first permanent molars in 12 year old students in Zahedan, 2000-2001. J Dent Sch Shahid Beheshti Univ Med Sci 2003; 21(4): 591-7. [In Persian].
  25. Bandyopadhyay D, Reich BJ, Slate EH. A spatial beta-binomial model for clustered count data on dental caries. Stat Methods Med Res 2011; 20(2): 85-102.
  26. Shanthi M, Reddy BV, Venkataramana V, Gowrisankar S, Reddy BV, Chennupati S. Relationship between drinking water fluoride levels, dental fluorosis, dental caries and associated risk factors in 9-12 years old school children of Nelakondapally Mandal of Khammam District, Andhra Pradesh, India: A cross-sectional survey. J Int Oral Health 2014; 6(3): 106-10.
  27. Harrison R. Oral health promotion for high-risk children: Case studies from British Columbia. J Can Dent Assoc 2003; 69(5): 292-6.
  28. Currie C, Roberts C, Settertobulte W, Morgan A, Smith R, Samdal O, et al. Young people's health in context: Health Behaviour in School-aged Children (HBSC). Copenhagen, Denmark: World Health Organization, Regional Office for Europe; 2004.