The Dental Arch Length and Width Differences Between Males and Females Ages 7-9 Years-Old Children
Abstract
The dental arch consists of teeth that develop on the jawbone. The shape and size of the dental arch are important components in orthodontic diagnosis and treatment planning. This study is to determine if there is a relationship between gender and the length and width of the dental arch in children aged 7 to 9 years. This research is an observational study using a cross-sectional design. The sample included 72 subjects for the study, consisting of girls and boys ages 7, 8, and 9, who met the inclusion and exclusion criteria. The dental arch width was measured at the inter-canines and inter-molars by digital sliding calipers. Anterior and posterior size of dental arch length measured from the midpoint between the right and left permanent central incisors perpendicular to the inter-canines and inter-molars. The Independent Sample t-Test results showed no significant differences in any parameters at the age of 7 years. However, at 8 years, a significant difference was observed in the intermolars of the mandible, while at 9 years, a significant difference was found in the intercanines width of the mandible between males and females. These findings indicate developmental variations in mandibular growth based on gender.
Keywords
Full Text:
PDFReferences
T. Hughes, Z. Mahmood, J. Giri, G. Townsend, and A. H. Brook, “Fluctuating genetic influences at three different stages of development of dental arches: A c
omplex system,” Genes, vol. 16, no. 2, p. 189, 2025, https://doi.org/10.3390/genes16020189
Yang D, Liang S, Zhang K, Gao W, Bai Y (2019) Evaluation of growth and development of late mixed dentition upper dental arch with normal occlusion using 3 dimensional digital models. J Healthc Eng. 2019:4191848. https://doi.org/10.1155/2019 /4191848
M. K. Alam, F. Shahid, K. Purmal, B. Ahmad, and M. F. Khamis, “Bolton tooth size ratio and its relation with arch widths, arch length and arch perimeter: a cone beam computed tomography (CBCT) study,” Acta Odontol. Scand., vol. 72, no. 8, pp. 1047 1053, 2014, https://pubmed.ncbi.nlm.nih.gov/25220521/ #:~:text=doi%3A%2010.3109/00016357.20 14.946967.
T. Salfiyadi, C. A. Nurskin, U. Khaira, N. Ramadhani, W. Maisarah, F. Fatteriawati, D. Darmila, and R. Reca, "Parental Behavior on the Growth Period of Deciduous Teeth and Permanent Teeth in Children in Central Aceh," J. Kesehat. Gigi, vol. 9, no. 2, pp. 115–121, 2022, https://doi.org/10.31983/jkg.v9i2.8973
S. Melink, M. V. Vagner, I. Hocevar Boltezar, and M. Ovsenik, “Posterior crossbite in the deciduous dentition period, its relation with sucking habits, irregular orofacial functions, and otolaryngological findings,” Am. J. Orthod. Dentofacial Orthop., vol. 138, no. 1, pp. 32–40, 2010, https://doi.org/10.1016/j.ajodo.2008.09.029.
M. Slaj, M. A. Jezina, T. Lauc, S. Rajić Mestrović, and M. Miksić, “Longitudinal dental arch changes in the mixed dentition,” Angle Orthod., vol. 73, no. 5, pp. 509–514, 2003, https://meridian.allenpress.com/angle orthodontist/article/73/5/509/131815/Longitud inal-Dental-Arch-Changes-in-the-Mixed
A. A. Rajbhoj, P. Parchake, G. Begnoni, G. Willems, and M. CadenasdeLlano-Pérula, “Dental changes in humans with untreated normal occlusion throughout lifetime: a systematic scoping review,” Am. J. Orthod. Dentofacial Orthop., vol. 160, no. 3, pp. 340 362, 2021, https://doi.org/10.1016/j.ajodo.2021.02.014.
A.Thabrani, S. Chairani, and T. Hestiningsih, " Comparison of Time and Sequence of Permanent Tooth Eruptions in Chinese and Arabic Ethnic Groups," Sriwijaya J. Dent., vol. 1, no. 1, pp. 33–42, 2020, https://doi.org/10.32539/sjd.v1i1.203 [
A.Szemraj-Folmer, A. Wojtaszek-Słomińska, B. Racka-Pilszak, and M. Kuc-Michalska, “Duration of the pubertal growth spurt in patients with increased craniofacial growth component in sagittal and vertical planes— retrospective and cross-sectional study,” Clin. Oral Investig., vol. 25, no. 8, pp. 4907–4914, 2021, doi:10.1007/s00784-021-03799-7, https://pubmed.ncbi.nlm.nih.gov/33544198/
C. Liu, J. Chen, M. Cui, Z. Wang, W. Shi, S. Du, Y. Feng, M. Zhang, Z. Li, S. Ge, and B. Fang, “Dental arch development of Chinese adolescents: A retrospective cross-sectional study,” Int. Dent. J., vol. 75, no. 3, pp. 1482 1492, 2025,https://doi.org/10.1016/j.identj.2025.02. 026
B. Thilander, “Dentoalveolar development in subjects with normal occlusion: A longitudinal study between the ages of 5 and 31 years,” Eur. J. Orthod., vol. 31, no. 2, pp. 109–120, 2009, doi: 10.1093/ejo/cjn124, https://pubmed.ncbi.nlm.nih.gov/19304760/
R. Islam, M. K. Alam, F. Shahid, and M. F. Khamis, "Global dental arch dimension norms and sexual disparities: An overview," Bangladesh J. Med. Sci., vol. 18, no. 1, pp. 30 35, 2019, https://doi.org/10.3329/bjms.v18i1.39543. doi:
Babu, K. L. Girish, and Kavyashree, "Gender determination using dental arch characteristics among a South Indian pediatric population: A morphometric study," Contemp. Pediatr. Dent., vol. 4, pp. 46–56, 2023, http://doi.org/10.51463/cpd.2023.151
A. Azlan, E. Mardiati, and I. A. Evangelina, “A gender-based comparison of intermolar width conducted at Padjajaran University Dental Hospital, Bandung, Indonesia,” Dent. J., vol. 52, no. 4, pp. 168–171, 2019, https://doi.org/10.20473/j.djmkg.v52.i4.p16 8-171.
J.R. Pinkham, C.S. Casamassimo, H. Fields, D.J. McTigue, and A. Nowak (Eds.), McDonald and Avery’s Dentistry for the Child and Adolescent, 11th ed., St. Louis, MO: Elsevier, 2022..
M. T. Cobourne and A. T. DiBiase, Handbook of Orthodontics. United Kingdom: Elsevier, 2015 [17] A. D. Rahmawati, I. S. R. Sudarso, D. Pramono, and E. Arguni, “Correlation between age and dental arch dimension of Javanese children,” Dent. J., vol. 53, no. 2, pp. 93–98, 2020, https://doi.org/10.20473/j.djmkg.v53.i2.p93-98
I. Jatana, B. Arora, D. Goyal, T.S. Grewal, and S. Dugal, “Sex determination by using mesiodistal dimensions of anterior teeth in Punjab population,” Int. J. Health Sci., vol. 6, suppl. 2, pp. 8323–8328, 2022, . https://doi.org/10.53730/ijhs.v6nS2.7121
S. Abaid, S. Zafar, E. Kruger, and M. Tennant, “Mesiodistal dimensions and sexual dimorphism of teeth of contemporary Western Australian adolescents,” J. Oral Sci., vol. 63, no. 3, pp. 247–251, 2021, doi: 10.2334/josnusd.20 0596, DOI: 10.2334/josnusd.20-0596
S. Stern, H. Finke, M. Strosinski, S. Mueller-Hagedorn, J. A. McNamara, and F. Stahl, “Longitudinal changes in the dental arches and soft tissue profile of untreated subjects with normal occlusion,” J. Orofac. Orthop., vol. 81, no. 3, pp. 192–208, May 2020, doi: 10.1007/s00056-020-00221-x
S. Foster, Dental Morphology and Occlusion: A Study of Developmental Variation and Adaptation. Oxford: Oxford Univ. Press, 2016.
A.D. Rahmawati, E. Arguni, I. Sutardjo, and D. Pramono, “Correlation between age, gender and bad oral habit of 7–9-year-old children in Karangjati Primary School,” Denta J. Kedokt. Gigi, vol. 14, no. 1, pp. 9–15, Feb. 2020, https://doi.org/10.30649/denta.v14i1.2
A.O. Mageet, “Dental arch dimensions and form in a Sudanese sample,” J. Contemp. Dent. Pract., vol. 19, no. 10, Oct. 2018, DOI:10.5005/jp-journals-10024-2410.
K.L. Girish Babu and K.G. Hebbar, “Gender determination using dental arch characteristics among a South Indian pediatric population: A morphometric study,” Contemp. Pediatr. Dent., vol. 4, no. 2, pp. 46–56, 2023, http://doi.org/10.51463/cpd.2023.151
DOI: https://doi.org/10.31983/jkg.v12i1.12605
Article Metrics
Refbacks
- There are currently no refbacks.
View My Stats |