Citation Information :
Johny MK, Naik B, Horatti P, Devadathan A, James B, George B. Effect of Materials and Techniques on Impact Strength of Reattached Anterior Fractured Teeth: An in vitro Study. Cons Dent Endod J 2018; 3 (1):17-21.
Aim: To evaluate the effects of bonding agents, composite resins, and reattachment techniques on impact strength of permanent maxillary central incisors in which fragment reattachment was done.
Materials and methods: Ninety permanent maxillary central incisors were collected and standardized fragments were obtained from 80 incisors by sectioning them 3 mm away from the incisal edge. The teeth specimens were distributed into eight test groups and one control group (n = 10) according to the reattachment technique (direct bonding or circumferential chamfer); adhesive system (single bond or Clearfil SE Bond); and intermediate material (Filtek flow or RelyX U200). The impact strength of reattached tooth was evaluated using universal testing machine Instron. The results were analyzed using one-way analysis of variance (ANOVA) and Tukey\'s multiple post hoc analysis.
Results: The fragment reattachment using circumferential chamfer was significantly superior to direct bonding. The use of single bond significantly increased the impact strength when compared with the use of Clearfil SE.
Conclusion: No technique or material, when individually considered, was capable of achieving the impact strength of the sound teeth; however, the association of reattachment technique circumferential chamfer with adhesive system (single bond) could approximate the impact strength of sound teeth.
Clinical significance: By achieving knowledge about the right materials and techniques for reattachment, this treatment modality could be used as a viable and feasible option for the uncomplicated fractured anterior teeth.
Bruschi-Alonso RC, Bruschi Alonso RC, Correr GM, Alves CM, Lewgoy HR, Sinhoreti MA, Puppin-Rontani RM, Correr- Sobrinho L. Reattachment of anterior fractured teeth: effect of materials and techniques on impact strength. Dent Traumatol 2010 Aug;26(4):315-322.
Tovo MF, dos Santos PR, Kramer PF, Feldens CA, Sari GT. Prevalence of crown fractures in 8–10 years old schoolchildren in Canoas, Brazil. Dent Traumatol 2004 Oct;20(5):251254.
Zuhal K, Semra OE, Huseyin K. Traumatic injuries of the permanent incisors in children in southern Turkey: a retrospective study. Dent Traumatol 2005 Feb;21(1):20-25.
Reis A, Loguercio AD, Kraul A, Matson E. Reattachment of fractured teeth: a review of literature regarding techniques and materials. Oper Dent 2004 Mar-Apr;29(2):226-233.
Reis A, Francci C, Loguercio AD, Carrilho MR, Rodriques Filho LE. Reattachment of anterior fractured teeth: fracture strength using different techniques. Oper Dent 2001 May- Jun;26(3):287-294.
Terry DA. Adhesive reattachment of a tooth fragment: the biological restoration. Pract Proced Asthet Dent 2003 Jun;15(5):403-409.
Farik B, Munksgaard EC. Fracture strength of intact and fragment-bonded teeth at various velocities of the applied force. Eur J Oral Sci 1999 Feb;107(1):70-73.
Pagliarini A, Rubini R, Rea M, Campese M. Crown fractures: effectiveness of current enamel-dentin adhesives in reattachment of fractured fragments. Quintessence Int 2000 Feb;31(2):133-136.
Loguercio AD, Mengarda J, Amaral R, Kraul A, Reis A. Effect of fractured or sectioned fragments on the fracture strength of different reattachment techniques. Oper Dent 2004 May- Jun;29(3):295-300.
Demarco FF, Fay RM, Pinzon LM, Powers JM. Fracture resistance of re-attached coronal fragments—influence of different adhesive materials and bevel preparation. Dent Traumatol 2004 Jun;20(3):157-163.
Farik B, Munksgaard EC, Andreasen JO. Impact strength of teeth restored by fragment-bonding. Endod Dent Traumatol 2000 Aug;16(4):151-153.
Worthington RB, Murchison DF, Vandewalle KS. Incisal edge reattachment: the effect of preparation utilization and design. Quintessence Int 1999 Sep;30(9):637-643.
Andreasen FM, Noren JG, Andreasen JO, Engelhardtsen S, Lindh-Stromberg U. Long-term survival of fragment bonding in the treatment of fractured crowns: a multicenter clinical study. Quintessence Int 1995 Oct;26(10):669-681.
Capp CI, Roda MI, Tamaki R, Castanho GM, Camargo MA, de Cara AA. Reattachment of dehydrated dental fragment using two techniques. Dent Traumatol 2009 Feb;25(1): 95-99.
Sengun A, Ozer F, Unlu N, Ozturk B. Shear bond strengths of tooth fragments reattached or restored. J Oral Rehabil 2003 Jan;30(1):82-86.
Farik B, Munksgaard EC, Suh BI, Andreasen JO, Kreiborg S. Adhesive bonding of fractured anterior teeth: effect of wet technique and rewetting agent. Am J Dent 1998 Dec;11(6):251-253.
Di Hipolito V, de Goes MF, Carrilho MR, Chan DC, Daronch M, Sinhoreti MA. SEM evaluation of contemporary selfetching primers applied to ground and unground enamel. J Adhes Dent 2005 Autumn;7(3):203-211.
Hannig M, Reinhardt KJ, Bott B. Self-etching primer vs phosphoric acid: an alternative concept for composite-to enamel bonding. Oper Dent 1999 May-Jun;24(3):172-180.