Fragment reattachment using a technique with no preparation and an adhesive system associated with an intermediate composite with good mechanical properties can restore part of the resistance of the fractured tooth
BACKGROUND / AIMS Fragment reattachment is a procedure that offers advantages , such as preservation of tooth structure and maintenance of color , shape , and translucency of the original tooth .
The aim of this study was to analyze the reattachment techniques used to restore anterior teeth fractured by trauma .
Influence of Different Bonding Agents and Composite Resins on Fracture Resistance of Reattached Incisal Tooth Fragment
Statement of Problem : Reattachment of the fractured tooth fragment should be considered as a conservative treatment and valid alternative to a composite restoration . Purpose : This in vitro study was to evaluate the influence of different adhesives and composite resins on fracture resistance of dental fragment reattached to the sectioned incisal edges . Material s and Method : 120 sound human maxillary central incisors were selected under st and ard conditions and r and omly divided into 3 groups , 12 sound teeth were used as a control group and the remaining teeth were assigned to 3 groups ( n=36 ) and each group into three subgroups ( n=12 ) . The incisal third of the sample s was sectioned using a diamond disk and the respective fragments were then reattached utilizing different intermediate restorative material s , namely : i ) adhesive material s alone ( OptiBond S or OptiBond XTR or OptiBond All-in-One ; ii ) Premise flowable composite and iii ) Point 4 composite in the one of the mentioned adhesive interface . After storage for two weeks at 37 ° C and 100 % humidity and then thermocycling ; shear bond strength ( SBS ) was recorded in kilogram force ( kgf ) by applying a load in the middle incisal third with a Zwick Universal Testing Machine at a cross-head speed of 1 mm/min . Data was analyzed with one-way ANOVA and Tukey HSD ( p < 0.05 ) . Results : The control group had a significantly higher SBS than other groups ( p= 0.001 ) ; the highest SBS values were obtained using the Premise flowable composite and OptiBond S adhesive ( 112.44±30.46 MPa ) ; and the lowest with OptiBond All-in-One alone ( 33.97± 15.63 MPa ) . Conclusion : Although , none of the tested material s provided fracture resistance similar to that found with the intact maxillary central incisors ; utilizing the Premise flowable composite and OptiBond S adhesive improved the SBS of the reattached fragment than other material
Fragment reattachment using a technique with no preparation and an adhesive system associated with an intermediate composite with good mechanical properties can restore part of the resistance of the fractured tooth
BACKGROUND / AIMS Fragment reattachment is a procedure that offers advantages , such as preservation of tooth structure and maintenance of color , shape , and translucency of the original tooth .
The aim of this study was to analyze the reattachment techniques used to restore anterior teeth fractured by trauma .