Prevalence and predictors of dental erosion in school children of Karachi Pakistan

Naheed Najmi, Anis Ahmed Bugti, Muhammad Nadeem, Hafsah Ayaz, Farzeen Tanwir, Faiza Shafiq


Aims: To assess the prevalence of dental erosion and to determine the predictors among school children aged between 12 to 14 years. Venue: A cross sectional study was conducted at a private school of Karachi, Pakistan from April 2011 till March 2012. Materials and Method: The subjects were selected on the basis of non-probability convenient sampling. Children aged 12-14 years were included for this study and children having frequent hospitalizations were excluded. The two previously calibrated examiners participated in the clinical examinations and visited the selected schools. The clinical examinations were performed in well-lit classrooms or in shaded places under natural light using plane mouth mirrors and sterilized cotton to remove debris. The central incisors, lateral incisors, and first molars in the upper and lower jaws were examined. Results: School children were assessed by O’sullivan index which showed dental erosion of 42.8% on labial or buccal surface, 9.7% on lingual or palatal surface, 7.4% on occlusal or incisal, 4% on labial, incisal/occlusal and 7% on lingual, incisal/occlusal surfaces. Grades of severity of dental erosion showed normal enamel in 43.1%, matt appearance of enamel surface with no loss of contour in 20.1% and loss of enamel only in 35.8% and loss of enamel with exposure of dentine in 1%. Conclusion: The study concludes that dental erosion is a multifactorial condition, which with time is becoming increasingly common in younger age group. As health providers it is our responsibility to identify the possible risk factors and make the community aware of the ways to prevent this condition.


Dental Erosion; School Children; Pakistan; Teeth; Dental Caries


Pindborg JJ. Pathology of the dental hard tissues: Munksgaard Copenhagen; 1970.

Magalhães AC, Wiegand A, Rios D, Honório HM, Buzalaf MAR. Insights into preventive measures for dental erosion. Journal of Applied Oral Science. 2009;17(2):75-86.

Mahoney E, Holt A, Swain M, Kilpatrick N. The hardness and modulus of elasticity of primary molar teeth: an ultra-micro-indentation study. Journal of Dentistry. 2000;28(8):589-94.

Lussi A, Schaffner M, Jaeggi T. Dental erosion‐diagnosis and prevention in children and adults. International Dental Journal. 2007;57(S6):385-98.

Yip KH, Smales RJ, Kaidonis JA. Tooth erosion: prevention and treatment: Jaypee Brothers Publishers; 2006.

Jaeggi T, Lussi A. Prevalence, incidence and distribution of erosion. 2006.

Luo Y, Zeng X, Du M, Bedi R. The prevalence of dental erosion in preschool children in China. Journal of dentistry. 2005;33(2):115-21.

Lussi A, Jaeggi T. Erosion—diagnosis and risk factors. Clinical oral investigations. 2008;12(1):5-13.

Ganss C, Klimek J, Lussi A. Accuracy and consistency of the visual diagnosis of exposed dentine on worn occlusal/incisal surfaces. Caries research. 2006;40(3):208-12.

Cavadini C, Siega-Riz AM, Popkin BM. US adolescent food intake trends from 1965 to 1996. Archives of Disease in Childhood. 2000;83(1):18-24.

Johansson AK, Lingström P, Birkhed D. Comparison of factors potentially related to the occurrence of dental erosion in high‐and low‐erosion groups. European journal of oral sciences. 2002;110(3):204-11.

Lussi A. Erosive tooth wear–a multifactorial condition of growing concern and increasing knowledge. 2006.

Shaw L, Smith A. Paediatric Dentistry: Dental erosion—the problem and some practical solutions. British Dental Journal. 1999;186(3):115-8.

Milosevic A, Lennon M, Fear S. Risk factors associated with tooth wear in teenagers: a case control study. Community dental health. 1997;14(3):143.

Künzel W, Cruz MS, Fischer T. Dental erosion in Cuban children associated with excessive consumption of oranges. European Journal of Oral Sciences. 2000;108(2):104-9.

Bartlett D, Coward P, Nikkah C, Wilson R. The prevalence of tooth wear in a cluster sample of adolescent schoolchildren and its relationship with potential explanatory factors. British Dental Journal. 1998;184(3):125-9.

Ali DA, Brown RS, Rodriguez LO, Moody EL, Nasr MF. Dental erosion caused by silent gastroesophageal reflux disease. The Journal of the American Dental Association.2002;133(6):734-7.

Hermont AP, Oliveira PA, Auad SM. Tooth erosion awareness in a Brazilian dental school. Journal of Dental Education. 2011;75(12):1620-6.

Wang P, Lin H, Chen J, Liang H. The prevalence of dental erosion and associated risk factors in 12-13-year-old school children in Southern China. BMC public health. 2010;10(1):478

Full Text: PDF


  • There are currently no refbacks.

Index Copernicus Index Copernicus Google Scholar NISCAIR OpenJGateDOAJUlrichsWeb
System Developed By Stanford University Arizona State University Simon Fraser University Canadian Centre For Studies In Publishing University of British Columbia - Faculty of Education
W3C XHTML v1.0 Verified W3C verified Valid CSS v2.1 PHP5 Enabled CopyScape Protected Made On Mac Apache Enabled MySQL Powered
Published by Celesta Software Pvt Ltd