International Journal of Clinical Pediatric Dentistry

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VOLUME 14 , ISSUE 2 ( March-April, 2021 ) > List of Articles


Prevalence of Missing First Permanent Molars in a Selected Population in a University Dental Clinic Setting: A Retrospective Radiographic Study

Yousef M Almugla

Keywords : Age, Early loss, Missing tooth, Permanent first molar, Prevalence

Citation Information : Almugla YM. Prevalence of Missing First Permanent Molars in a Selected Population in a University Dental Clinic Setting: A Retrospective Radiographic Study. Int J Clin Pediatr Dent 2021; 14 (2):269-272.

DOI: 10.5005/jp-journals-10005-1941

License: CC BY-NC 4.0

Published Online: 30-07-2021

Copyright Statement:  Copyright © 2021; Jaypee Brothers Medical Publishers (P) Ltd.


Aim and objective: This study aimed to determine the prevalence of missing first permanent molars (FPMs) in the 7–29-year-old selected population of Al Ahsa, Saudi Arabia. Materials and methods: This study retrospectively analyzed 398 panoramic radiographs of patients aged from 7 to 29 years old for missing FPM. Patients were divided into two age-groups: 7–15 and 16–29 years old. Study variables including gender, age, missing FPM, dental arch, and right or left sides of the arch were recorded. The data were statistically analyzed using Chi-square tests. Results: Of the total study sample, 23.1% of patients had only one missing FPM, 13.3% of patients had two, and 2.8% of them had three missing FPM teeth. No patient had four missing FPM teeth. A total of 60.8% (242) radiographs in the overall sample did not show any missing teeth. The mandibular FPMs (35.2%) were found missing more frequently than their maxillary counterparts (17.4%) and the left mandibular quadrant showed a higher rate of missing FPM (21.9%). No statistically significant association was seen between the missing FPM and the gender or age-group (p > 0.05). Conclusion: The high prevalence rates of missing FPM in the study population warrants attention. Further prospective studies are needed to comprehensively evaluate the effect of early loss of the FPM on space changes in the arch and subsequent reduction in complex orthodontic treatment needs.

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  1. 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.
  2. Al-Ansari AA. Prevalence, severity, and secular trends of dental caries among various Saudi populations: a literature review. Saudi J Med Med Sci 2014;2(3):142–150. DOI: 10.4103/1658-631X.142496.
  3. Farooqi FA, Khabeer A, Moheet IA, et al. Prevalence of dental caries in primary and permanent teeth and its relation with tooth brushing habits among schoolchildren in Eastern Saudi Arabia. Saudi Med J 2015;36(6):737–742. DOI: 10.15537/smj.2015.6.10888.
  4. Ali D. Reasons for extraction of permanent teeth in a university dental clinic setting. Clin Cosmet Investig Dent 2021;13:51–57. DOI: 10.2147/CCIDE.S294796.
  5. Jafarian M, Etebarian A. Reasons for extraction of permanent teeth in general dental practices in Tehran, Iran. Med Princ Pract 2013;22(3):239–244. DOI: 10.1159/000345979.
  6. 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.
  7. Arrow P. Dental enamel defects, caries experience and oral health-related quality of life: a cohort study. Aust Dent J 2017;62(2):165–172. DOI: 10.1111/adj.12449.
  8. Jalevik B, Moller M. Evaluation of spontaneous space closure and development of permanent dentition after extraction of hypomineralized permanent first molars. Int J Paediatr Dent 2007;17(5):328–335. DOI: 10.1111/j.1365-263X.2007.00849.x.
  9. Gill DS, Lee RT, Tredwin CJ. Treatment planning for the loss of first permanent molars. Dent Update 2001;28(6):304–308. DOI: 10.12968/denu.2001.28.6.304.
  10. Halicioglu K, Celikoglu M, Caglaroglu M, et al. Effects of early bilateral mandibular first molar extraction on condylar and ramal vertical asymmetry. Clin Oral Investi 2013;17(6):1557–1561. DOI: 10.1007/s00784-012-0843-9.
  11. Raducanu AM, Feraru V, Herteliu C, et al. Prevalence of loss of permanent first molars in a group of Romanian children and adolescents. Oral Health Dent Manag 2009;8(3):3–10.
  12. Ozmen B. Evaluation of permanent first molar tooth loss in young population from north Turkey. Balk J Dent Med 2019;23(1):20–23. DOI: 10.2478/bjdm-2019-0004.
  13. Atieh MA. Tooth loss among Saudi adolescents: social and behavioural risk factors. Int Dent J 2008;58(2):103–108. DOI: 10.1111/j.1875-595x.2008.tb00184.x.
  14. Rezaie M, Ghapanchi J, Haghnegahdar A, et al. A radiographic evaluation of missing of permanent first molars in a group of Iranian children and adults: a retrospective study. Int J Dent 2018;2018:5253965. DOI: 10.1155/2018/5253965.
  15. Al-Shammari KF, Al-Ansari JM, Al-Melh MA, et al. Reasons for tooth extraction in Kuwait. Med Princ Pract 2006;15(6):417–422. DOI: 10.1159/000095486.
  16. Artun J, Thalib L. Mesial migration and loss of first molars among young adolescents in Kuwait. Community Dent Health 2011;28(2):154–159.
  17. Bhat N, Mitra R, Reddy JJ, et al. Reasons and pattern of tooth mortality as perceived by dental professionals in Udaipur city, Rajasthan, India. Arch Oral Res 2013;9(2):149–157. DOI: 10.7213/archivesoforalresearch.09.002.AO01.
  18. Demirbuga S, Tuncay O, Cantekin K, et al. Frequency and distribution of early tooth loss and endodontic treatment needs of permanent first molars in a Turkish pediatric population. Eur J Dent 2013;7(Suppl 1):S099–S104. DOI: 10.4103/1305-7456.119085.
  19. Passarelli PC, Pagnoni S, Piccirillo GB, et al. Reasons for tooth extractions and related risk factors in adult patients: a cohort study. Int J Environ Res Public Health 2020;17(7):2575. DOI: 10.3390/ijerph17072575.
  20. Alesia K, Khalil HS. Reasons for and patterns relating to the extraction of permanent teeth in a subset of the Saudi population. Clin Cosmet Investig Dent 2013;5:51–56. DOI: 10.2147/CCIDE.S49403.
  21. George B, John J, Saravanan S, et al. Prevalence of permanent tooth loss among children and adults in a suburban area of Chennai. Indian J Dent Res 2011;22(2):364. DOI: 10.4103/0970-9290.84284.
  22. Susin C, Haas AN, Opermann RV, et al. Tooth loss in a young population from south Brazil. J Public Health Dent 2006;66(2):110–115. DOI: 10.1111/j.1752-7325.2006.tb02565.x.
  23. Alajlan SS, Alsaleh MK, Alshammari AF, et al. The prevalence of malocclusion and orthodontic treatment need of school children in Northern Saudi Arabia. J Orthod Sci 2019;8(1):10. DOI: 10.4103/jos.JOS_104_18.
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