3Gorelick L, Geiger AM, Gwinnett AJ. Incidence of white spot formationafter bonding and handing. Am J Orthod 1981 ;81:93-98.
4Mizrahi E. Enamel demineralization following orthodontic treatment. Am JOrthod 1982;82:62-67.
5Artun J, Brobakken BO. Prevalonce of carious white spots after orthodontic treatment with multibonded appliances. Eur J Orthod 1986;8:229-234.
6Banks PA, Richmond S. Enamel sealants: a clinical evaluation of theirvalue during fixed appliance therapy. Eur J Orthod 1994;16:19-25.
7Marcushamer M, Garcia-Godoy F, Chan DCN. Caries protection afterorthodontic bond cementation with glass ionomer. ASDC J Dent Child1993;60:300-303.
8Mizrahi E. Glass Ionomer Cements in orthodontics - An update. Am JOrthod Dentofac Orthop 1988;93:505-507.
9Maijer R, Smith DC. A comparison between zinc phosplhate and glass ionomer cement in orthodontics. Am J Orthod Dentofac Orthop 1988;93:273-279.
10Artun J, Thylstrup A. A 3-year clinical and SEM study of surface changesof carious enamel lesions after inactivation. Am J Orthod Dontofac Orthop1989; 95: 327-333.