An in vitro investigation into the shear bond strengths of two dentine‐bonding agents used in the reattachment of incisal edge fragments

Abstract

This in vitro study investigated the shear bond strengths of sectioned bovine incisal edge fragments reattached using Gluma 2000 and Scotchbond 2. Teeth were sectioned 3 mm from the incisal edge using an Acutome with a 0.5 mm diamond wheel running at 90 degrees to the mesial or distal surface of the tooth. Twenty four incisal fragments were rebonded with each of the dentine bonding agents; a further 24 intact incisors were used as a control group. The control group required a mean fracture force of 940(+/- 144) N which was significantly greater (p < 0.01) than that required to fracture fragments rebonded using GLUMA 2000 (609 +/- 116) N and Scotchbond 2 (393 +/- 97) N. The mean force required to fracture incisal fragments rebonded with GLUMA 2000 was significantly greater (p < 0.01) than that required to fracture incisal fragments rebonded with Scotchbond 2.

Incisal edge reattachment: indications for use and clinical technique

“…Other laboratory investigations have been published using models addressing a variety of materials and preparation designs in an attempt to optimise the strength and consistency of the reattachment procedure. [8][9][10][11][12][13] The dental profession has attempted to educate the lay public to the prompt and appropriate management of avulsed teeth. 2,14 Numerous international campaigns to improve the emergent response necessary to optimise the prognosis in replantation cases have been carried out in Australia, Denmark, Brazil, Argentina, and the United States.…”

Adhesive Reattachment of Maxillary Right Central Incisor fragment: A Conservative Approach

“…4 To restore the fractured teeth various techniques were employed which include pin retained restorations, stainless steel crowns, orthodontic bands, porcelain jacket crowns and complex ceramic restorations. 8,9 These restorations require tooth preparation, which were not esthetically adequate and cannot be employed in emergency esthetic situations. 10 With the advancement of resin composites and adhesive systems, reattachment of tooth fragments has become a restorative technique with favourable prognosis rather than a provisional restoration.…”

Reattachment of fractured anterior tooth fragment: An approach in endo esthetic view

“…Traditionally such injuries have been restored with composite resin, 1 but they have some disadvantages of color match and variable wear. 2 On the other hand, reattachment of fractured fragment may offer the following advantages: a) better esthetic and achievement of lifelike translucency, b) require less time, c) a positive emotional and social response from the patient's side and d) relatively inexpensive procedure. 3 If a broken tooth fragment is available and in a good condition the restoration of the tooth using its own fragment has been suggested.…”