Citation Information :
Mudumba VL, Srinivas N, Kumar DM. Evaluation and Comparison of Changes in Microhardness of Primary and Permanent Enamel on Exposure to Acidic Center-filled Chewing Gum: An in vitro Study. Int J Clin Pediatr Dent 2014; 7 (1):24-29.
Objectives: The study is to evaluate changes in microhardness of enamel after exposure to acidic center filled chewing gum on primary and permanent teeth.
Methods: Thirty primary and 30 permanent molar extracted teeth were painted with acid resistant varnish except a small window over buccal surface. Teeth were divided into four groups according to type of teeth and type of chewing gum (Center fresh and Bubbaloo) (D1, P1, D2 and P2); each tooth was exposed to whole chewing gum mashed with 5 ml of artificial saliva for five minutes at room temperature twice a day for 5 days. After the exposure, teeth were stored in deionized water and submitted for microhardness tests.
Results: Paired t-test and independent sample t-test were used for statistical analysis. A significant reduction in microhardness was found between exposed and unexposed areas in all groups. There was no statistically significant difference in reduction of microhardness to chewing gums, and between primary and permanent enamel.
Conclusion: There is a definite reduction in microhardness in all groups exposed to chewing gums. Both the chewing gums are equally erosive; both permanent and primary teeth were affected.
How to cite this article: Mudumba VL, Muppa R, Srinivas NCH, Kumar DM. Evaluation and Comparison of Changes in Microhardness of Primary and Permanent Enamel on Exposure to Acidic Center-filled Chewing Gum: An in vitro Study. Int J Clin Pediatr Dent 2014;7(1):24-29.
Magalhaes AC (Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil. email@example.com), Rios D, Honorio HM, Delbem ACB, Buzalaf MAR. Effect of 4% titanium tetrafluoride solution on the erosion of permanent and deciduous human enamel: An in situ/ex vivo study. J Appl Oral Sci 2009 Jan-Feb;17(1):56-60.
O'Sullivan EA (Department of Paediatric Dentistry, Leeds Dental Institute, Leeds, UK. DENEAO@leeds.ac.uk), Curzon ME. Salivary factors affecting dental erosion in children. Caries Res 2000 Jan-Feb;34(1):82-87.
Imfeld T (Clinic of Preventive Dentistry, Periodontology and Cardiology, Dental Institute, University of Zurich, Switzerland). Dental erosion. Definition, classification and links. Eur J Oral Sci 1996 Apr;104(2 (Pt 2)):151-155.
Lussi A (Department of Operative, Preventive and Paediatric Dentistry, University of Bern, School of Dental Medicine, Bern, Switzerland), Schaffner M. Progression of and risk factors for dental erosion and wedge: Shaped defects over a 6 years period. Caries Res 2000 Mar-Apr;34(2):182-187.
Lussi A (Department of Operative, Preventive and Paediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland. firstname.lastname@example.org), Jaeggi T, Zero D. The role of diet in the aetiology of dental erosion. Caries Res 2004;38 Suppl 1:34-44.
Ly KA (Department of Dental Public Health Sciences, Northwest/Alaska Center to Reduce Oral Health Disparities, University of Washington, Seatle, Washington 98195-7475, USA. kietaly@u. washington.edu), Milgrom P, Rothen M. The potential of dentalprotective chewing gum in oral health interventions. J Am Dent Assoc 2008 May;139(5):553-563.
Oncag G (Department of Orthodontics, Ege University, Izmir, Turkey. email@example.com), Tuncer AV, Tosun YS. Acidic soft drink effects on the shear bond strength of orthodontic brackets and scanning electron microscopy evaluation of the enamel. Angle Orthod 2005 Mar;75(2):247-253.
Bolan M (Department of Stomatology, Federal University of Santa Catarina, Brazil. firstname.lastname@example.org), Ferreira MC, Vieira RS. Erosive effects of acidic center filled chewing gum on primary and permanent enamel. J Indian Soc Pedod Prev Dent 2008 Dec;26(4):149-152.
Miwa H (Department of Orthodontics, School of Dentistry, Aichi-Gakuin, University Nagoya, Japan), Miyazawa K, Goto S, Kondo T, Hasegawa A. A resin veneer protection during orthodontic treatment. Eur J Orthod 2001 Dec;23(6):759-767.
Kate H, Evans M, Long M, Joiner A. Enamel benefits of a new hydroxyapatite containing fluoride tooth paste. Int Dent J 2009;59:325-331.
Ren YF (University of Rochester Eastman Dental Center, 625 Elmwood Avenue, Rochester, NY 14620, United States. email@example.com), Amin A, Malmstrom H. Effects of tooth whitening and orange juice on surface properties of dental enamel. J Dent 2009 Jun;37(6):424-431. doi: 10.1016/j. jdent.2009.01.011. Epub 2009 Feb 23.
Amechi BT (Department of Clinical Dental Sciences, School of Dentistry, The University of Liverpool, Edwards Building, Daulby Street, L69 3GN, Liverpool, UK. firstname.lastname@example.org), Higham SM. Eroded enamel lesion remineralization by saliva as a possible factor in the site: Specificity of human dental erosion. Arch Oral Biol 2001 Aug;46(8):697-703.
Roveri N (Dept. of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy email@example.com), Battistella E, Foltran I, Foresti E, Lafisco M, Lelli M, Palazzo B, Rimondini L. Synthetic biomimetic carbonatehydroxyl apatite nanocrystals for enamel remineralization. Adv Mat Resear 2008;47-50:821-824.
Hunter ML(Dental Health and Development, University of Wales College of Medicine Dental School, Heath Park, Cardiff, UK. firstname.lastname@example.org), West NX, Hughes JA, Newcombe RG, Addy M. Erosion of deciduous and permanent dental hard tissue in the oral environment. J Dent 2000 May;28(4):257-63.
Ranjitkar S (School of Dentistry, Faculty of Health Sciences, The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia), Kaidonis JA, Smales RJ. Gastroesophageal reflux disease and tooth erosion. Int J Dent 2012;2012:479850. doi: 10.1155/2012/479850. Epub 2011 Dec 12.