Aim and objective: To evaluate the association between oral stereognosis with malocclusion in children.
Materials and methods: Stereognostic investigation was made with a set of seven different geometric configurations (circle, square, triangle, star, clover, diamond, and heart shapes) cut out from fresh, raw carrots using preformed iron molds. Any five of the seven geometric forms were randomly placed inside the mouth on the dorsum of the tongue by the investigator with the subject\'s eyes closed. A minimum of three shapes correctly identified out of the five offered to each child was considered as an indicator of the adequate stereognostic ability of that particular child.
Results: Among the children under Index of Orthodontic Treatment Needs (IOTN) grade I group, 82.4% of children came under the positive response group. Among IOTN grades II, III, and IV, the percentages of children with positive responses were 72.1%, 58.1%, and 18.8%, respectively. There is a statistically significant (p < 0.001) decrease in positive response with increasing IOTN grades.
Conclusion: The observations from the present study show that there is altered oral sensory perception in children graded as with malocclusion according to the index used and belonging to the age group selected in the study.
Clinical significance: Sensory and motor components of the orofacial region, like any other part of the human body, are inseparable in their structure and function, the association between orofacial growth and development and sensory maturation cannot be overlooked.
Pedroza RMS, López LFC, Ramírez-Gómez KE. Description of oral-motor development from birth to six years of age. Rev Fac Med 2014;62(No. 4):593–604. DOI: 10.15446/revfacmed.v62n4.45211.
Proffit WR. Contemporary orthodontics, 4th ed., St Louis: Mosby; 2007. pp. 689–707.
Premkumar S, Venkatesan A, Rangachari S. Altered oral sensory perception in tongue thrusters with an anterior open bite. Eur J Orthod 2010;33(2):139–142. DOI: 10.1093/ejo/cjq042.
Dahan JS, Lelong O, Celant S, et al. Oral perception in tongue thrust and other oral habits. Am J Ortho 2000;118(4):385–391. DOI: 10.1067/mod.2000.109101.
Salzmann JA. Role of kinesthetics and oral motor function in orthodontic therapy. Am J Ortho 1971;69(1):89–91. DOI: 10.1016/0002-9416(71)90219-3.
Epstein O, Perkin GD, de Bono DP, et al., ed. Clinical examination. 2nd edn., London: Mosby Publications; 1997. pp. 302–303.
de Vries JL, Visser GH, Prechtl HF. The emergence of fetal behaviour. I. Qualitative aspects. Early Hum Dev 2008;7(4):301–322. DOI: 10.1016/0378-3782(82)90033-0.
de Almeida Prado DG, Pavani Sovinski SR, Nary Filho H, et al. Oral motor control and orofacial functions in individuals with dentofacial deformity. Audiol - Communicat Res 2015;20(1):76–83. DOI: 10.1590/S2317-64312015000100001427.
Brook PH, Shaw WC. The development of an index of orthodontic treatment priority. Eur J Orthod 1989;11(3):309–320. DOI: 10.1093/oxfordjournals.ejo.a035999.
Üçüncü N, Ertugay E. The use of the index of orthodontic treatment need (IOTN) in a school population and referred population. J Orthodont 2001;28(1):45–52. DOI: 10.1093/ortho/28.1.45.
Richmond S, Roberts CT, Andrews M. Use of the index of orthodontic treatment need (IOTN) in assessing the need for orthodontic treatment pre- post-appliance therapy. Br J Orthodont 1994;21(2):175–184. DOI: 10.1179/bjo.21.2.175.
Burden DJ, Holmes A. The need for orthodontic treatment in child population of the United Kingdom. Eur J Orthodont 1994;16(5):395–399. DOI: 10.1093/ejo/16.5.395.
Burden DJ, Mitropoulos CM, Shaw WC. Residual orthodontic treatment need in a sample of 15- and 16-year-olds. Br Dent J, 1994;176(6):220–224. DOI: 10.1038/sj.bdj.4808418.
Laganà G, Masucci C, Fabi F, et al. Prevalence of malocclusions, oral habits and orthodontic treatment need in a 7- to 15-year-old schoolchildren population in Tirana. Prog Orthodont 2013;14(1):3–7. DOI: 10.1186/2196-1042-14-12.
Alan Vieira Bittencourt M, Wilson Machado A. An overview of the prevalence of malocclusion in 6 to 10-year-old children in Brazil. Dental Press J Orthod 2010;15(6):113–122. DOI: 10.1590/S2176-94512010000600015.
Romano FL, de Araújo Magnani MBB, Ferreira JTL, et al. Prevalence of malocclusions in schoolchildren with mixed dentition in the city of Piracicaba, Brazil. Rev Odontol Univ Cid São Paulo 2012;24:96–104.
Prasad AR, Shivaratna SC. Epidemiology of malocclusion a report of a survey conducted in Bangalore city. J Ind Orthod Soc 1971;3:43–55.
Shivakumar KM, Chandu GN, Subba Reddy VV, et al. Prevalence of malocclusion and orthodontic treatment needs among middle and high school children of Davangere city, India by using dental aesthetic index. J Indian Assoc Public Health Dentis 2011;18:211–218.
Graubard SA, Caarrel R, Chlastri AJ. The relationship between oral stereognosis and swallowing patterns in children. J Dent Child 1979. 35–41.
Kawagishi S, Kou F, Yoshino K, et al. Decrease in stereognostic ability of the tongue with age. J Oral Rehab 2009;36(12):872–879. DOI: 10.1111/j.1365-2842.2009.02005.x.
Jacobs R, Bou Serhal C, van Steenberghe D. Oral stereognosis: a review of the literature. Clin Oral Investig 1998;2(1):3–10. DOI: 10.1007/s007840050035.
Koczorowski M, Woźniak W, Koczorowski R. Impairment of the oral stereognosis in the partial anterior open bite. Folia Morphol 1996;65:221–224.
Hochberg I, Kabcenell J. Oral stereognosis in normal and cleft palate individuals. Cleft Palate J 1967;4:47–57.
Grasso JE, Catalanatto FA. The effects of age and full palatal coverage on oral streognostic ability. J Prosth Dent 1979;41(2):215–219. DOI: 10.1016/0022-3913(79)90310-x.