Assessment of Caries in Permanent First Molars (DMFT) and Occlusion in Children Aged 7 to 12 Years Attending Dentistry collage in Duhok city

Caries in Permanent First Molars (DMFT) and Occlusion in Children

  • Anees Mahmood Mudhir University of Duhok
  • HUDA JAMEEL QASIM Lecturer, M.Sc. in preventive dentistry, POP dept, College of Dentistry, University of Duhok, Iraq
  • DILAN SH. MOHAMMED TAHER Ass. Lecturer, M.Sc. in pedodontics dentistry, POP dept, College of Dentistry, University of Duhok, Iraq
  • HALIMA MOHAMMED HASSAN Ass. Lecturer, M.Sc. in orthodontics dentistry, POP dept, College of Dentistry, University of Duhok, Iraq
Keywords: Dental caries, DMFT index, , PFMs occlusion

Abstract

https://doi.org/10.31386/dmj.2025.19.1.9

Background:

Tooth decay is a chronic, infectious and preventable disease that is very communal around the world. It has been detected that dental caries affect not only the majority of adults but also 60% to 90% of children [1].

The teeth with decay that are found in children most often are the permanent first molars (PFMs) [2]. The primary causes of this decay are PFMs' deep pits and fissures, insufficient maturation in their early progressive phases, young children's incapacity to brush their teeth effectively, and parental misperception that PFMs are deciduous [3, 4]. Regarding functionality and development, PFMs are the most significant teeth playing a key role in occlusion [5]. Therefore, systematic dental checks, preventive dental treatments, and early decay intervention stop the premature damage of PFMs, and also avoid waste of time and financial losses [6]. Epidemiological revisions play an important part in the distribution and incidence of oral diseases and are considered very significant for public health, since they serve as the foundation for identifying therapeutic needs. In these studies, there is a need for epidemiologic indices that are comparable, reproducible, simply applicable, valid and dependable [7].

 Aim: The aim of the current study is to evaluate the decayed, missing and filled teeth (DMFT) scores of first permanent molars (FPMs) in the early post-eruptive stage and prevent the complications of primary loss of FPM by raising awareness for the inhibition and treatment of permanent tooth caries, besides, assessment of malocclusion.

Material and method:

Across sectional study will be conducted by collecting data from 600 children attended to pediatric department / dentistry college / Duhok university through the academic year (2022-2023), data collected by using DMFT index and PFMs occlusion.

Conclusions

The current epidemiological study highlights the importance of early evaluation of PFMs in the post-eruptive stage and raising public awareness of oral health in order to reduce DMFT scores.

Downloads

Download data is not yet available.

References

References
1.Ozdemir, D. Dental Caries: The Most Common Disease Worldwide and Preventive Strategies. Int. J. Biol. 2013, 5, 55–61. [CrossRef]
2.Avery’s Dentistry for the Child and Adolescent, 11th ed.; Elsevier: St. Louis, MO, USA, 2016; pp. 199–219.
3. Zhu, F.; Chen, Y.; Yu, Y.; Xie, Y.; Zhu, H.; Wang, H. Caries prevalence of the first permanent molars in 6–8 years old children. PLoSONE 2021, 16, e0245345. [CrossRef] [PubMed]
4. Al-Samadani, K.H.M.; Ahmad, M.S. Prevalence of First Permanent Molar Caries in and Its Relationship to the Dental Knowledge of 9–12-Year Olds from Jeddah, Kingdom of Saudi Arabia. ISRN Dent. 2012, 2012, 1–6. [CrossRef] [PubMed]
5. Ebrahimi, M.; Ajami, B.-A.-M.; Sarraf Shirazi, A.R.; Aghaee, M.A.; Rashidi, S. Dental Treatment Needs of Permanent First Molars in Mashhad Schoolchildren. J. Dent. Res. Dent. Clin. Dent. Prospect. 2010, 4, 52–55. [CrossRef]
6. Duman, S.; Duruk, G. The evaluation of the clinical and radiographic records of the first molar teeth in pediatric patients. Ann. Med. Res. 2019, 26, 2339. [CrossRef]
7. Pontigo-Loyola, A.P.; Márquez-Corona, M.D.L.; Minaya-Sánchez, M.; Lucas-Rincón, S.E.; Casanova-Rosado, J.F.; Robles-Minaya, J.L.; Casanova-Sarmiento, J.A.; Casanova-Rosado, A.J.; Mendoza-Rodriguez, M.; Medina-Solís, C.E. Correlation between the caries status of the first permanent molars and the overall DMFT Index. Medicine 2020, 99, e19061.
8. Dawkins E., Michimi A., Ellis-Griffith G., Peterson T., Carter D., English G. Dental caries among children visiting a mobile dental clinic in South Central Kentucky: a pooled cross-sectional study. BMC Oral Health. 2013;13(1):p. 19. doi: 10.1186/1472-6831-13-19. [PMC free article] [PubMed] [CrossRef] [Google Scholar]
9. van der Tas J. T., Kragt L., Elfrink M. E. C., et al. Social inequalities and dental caries in six-year-old children from the Netherlands. Journal of Dentistry. 2017;62:18–24. doi: 10.1016/j.jdent.2017.04.008. [PMC free article] [PubMed] [CrossRef] [Google Scholar]
10. Paglia L., Gallus S., de Giorgio S., et al. Reliability and validity of the Italian versions of the Children’s Fear Survey Schedule-Dental Subscale and the Modified Child Dental Anxiety Scale. European Journal of Paediatric Dentistry. 2017;18(18):305–312. [PubMed] [Google Scholar]
11. Gerritsen AE, Allen PF, Witter DJ, et al. Tooth loss and oral health-related quality of life: a systematic review and meta-analysis. Health Qual Life Outcomes. 2010;8(1):126. doi: 10.1186/1477-7525-8-126. DOI: [PMC free article] [PubMed] [CrossRef] [Google Scholar]
12. Caglaroglu M, Kilic N, Erdem A. Effects of early unilateral first molar extraction on skeletal asymmetry. Am J Orthod Dentofacial Orthop. 2008;134(2):270–275. doi: 10.1016/j.ajodo.2006.07.036. DOI: [PubMed] [CrossRef] [Google Scholar]
13.Angle E.H. Classification of malocclusion. Dent Cosmos. 1899;41:248–264. [Google Scholar]
14.Wang, J.-D.; Chen, X.; Frencken, J.; Du, M.-Q.; Chen, Z. Dental caries and first permanent molar pit and fissure morphology in 7-to 8-year-old children in Wuhan, China. Int. J. Oral Sci. 2012, 4, 157–160. [CrossRef]
15.Ebrahimi, M.; Ajami, B.-A.-M.; Sarraf Shirazi, A.R.; Aghaee, M.A.; Rashidi, S. Dental Treatment Needs of Permanent First Molars in Mashhad Schoolchildren. J. Dent. Res. Dent. Clin. Dent. Prospect. 2010, 4, 52–55. [CrossRef]
16.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. Medical. Sci. 2000, 5, 30–36. [CrossRef]
17.Chen, J.W.; Leggitt, V.L. Pulp treatment for young first permanent molars: To treat or to extract? Endod. Topics. 2010, 23, 34–40. [CrossRef]
18. Das U.M., Venkatsubramanian Reddy D. Prevalence of malocclusion among school children in Bangalore, India. Int J Clin Pediatr Dent. 2008;1:10–12. [PMC free article] [PubMed] [Google Scholar]
19. Khorasani, M.Y.; Irannezhad, M. The prevalence of caries in the first permanent molars among students of 7 and 12 years of age in Rafsanjan, Iran, in 2009–2010. J. Occup. Health Epidemiol. 2017, 6, 25–31. [CrossRef]
20.Joshi, N.; Sujan, S.; Joshi, K.; Parekh, H.; Dave, B. Prevalence, severity and related factors of dental caries in school going children of vadodara city—An epidemiological study. J. Int. Oral Health 2013, 5, 35–39.
21.Zhu, F.; Chen, Y.; Yu, Y.; Xie, Y.; Zhu, H.; Wang, H. Caries prevalence of the first permanent molars in 6–8 years old children. PLoS
ONE 2021, 16, e0245345. [CrossRef] [PubMed]
22.Poureslami, P.; Pouradeli, S.; Poureslami, H.; Shahrokhi, E. Evaluation of health status of first permanent molar teeth among
12-year-old students in rural areas of south of Kerman, Iran, 2016. J. Oral Health Oral Epidemiol. 2017, 7, 33–38.
23. Kamyab, N.; Kamalabadi, Y.M.; Fathollahi, M.S. DMFT of the First Permanent Molars, dmft and Related Factors among All
First-Grade Primary School Students in Rafsanjan Urban Area. J. Dent. 2020, 22, 109–117. [CrossRef]
24.Das U.M., Venkatsubramanian Reddy D. Prevalence of malocclusion among school children in Bangalore, India. Int J Clin Pediatr Dent. 2008;1:10–12. [PMC free article] [PubMed] [Google Scholar]
25 year-old Tanzanian school children. Eur J Orthod. 2009;31:467–476. [PubMed] [Google Scholar]
Published
2025-07-15
How to Cite
1.
Mudhir A, JAMEEL QASIM H, SH. MOHAMMED TAHER D, MOHAMMED HASSAN H. Assessment of Caries in Permanent First Molars (DMFT) and Occlusion in Children Aged 7 to 12 Years Attending Dentistry collage in Duhok city. Duhok Medical Journal [Internet]. 15Jul.2025 [cited 13Jun.2026];19(1):87-4. Available from: https://dmj.uod.ac/index.php/dmj/article/view/315