Comparison of the shear bond strength between fragment reattachment and composite resin restoration for crown-fractured anterior teeth
HUANG Juan
WANG Xiao-ying
WU You-nong
GAO Yun
Abstract：AIM:To compare the shear bond strength of fragment reattachment and composite resin restoration for crown-fractured anterior teeth.METHODS:36 in vitro models of crown-fractured maxillary central incisor were divided into 2 groups(n =18) randomly.The fractured crowns in group A were reattached by Clearfil SE Bond while those in group B were restored by the same adhesive and composite resin AP-X.Then the teeth were submitted to an axial compression test in a Universal Testing Machine.The spade was put on the buccal surface of the tooth vertically with a speed of 1 mm/min and a maximum limit of 10 kN until the tooth fractured.RESULTS:The mean shear bond strength of group A and group B were (326.78 ±70.66) N and(351.74 ±54.11)N respectively(t =1.190,P =0.242).CONCLUTION:The shear bond strength of composite resin build-up is similar to that of fragment reattachment.
Keywords：reattachmentcomposite resin build-upcrown fractureshear bond strength
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 108-110 )