In vitro tensile bond strength of brackets cemented with a glass-ionomer cement (Fuji ORTHO LC) and a resin composite (Concise)

Leopoldino CAPELOZZA FILHO, Alyton Moço FAIDIGA, André Luiz de Moura CORSO, José Roberto de Magalhães BASTOS

Dental caries has been the target of an increasing number of research in dentistry. This work had the objective to compare the tensile bond strenght of orthodontic brackets cemented to human premolars with either a glass-ionomer cement (Fuji ORTHO LC), or a resin composite (Concise, 3M) in order to evaluate the reliability and safety of using the glass-ionomer material for such purpose in orthodontics. Twenty eight extracted human premolars were divide into two groups of each material. The brackets were cemented to the teeth, according to the manafactures’s indications for each material and stored in artificial saliva for 72 hours before testing. The samples were tested in tension in a Kratos universal testing machine at 0.5mm/sec. until debonding. The results for each material were compared by applying the Student “t” test. The results showed no statistical difference between the glass-ionomer cement and the resin composite. Based on the results presented in this study, the use of Fuji ORTHO LC for cementing brackets is highly recommended as an alternative to resin composites due to its additional advantages such as fluoride release, antibacterial properties and potential for caries prevention.

Keywords: Caries prevention. Orthodontics. Glass-ionomer cements.

Saturday, November 23, 2024 09:34