A comparison of impact strength of fragment-bonded anterior teeth using three different restorative materials: an in vitro study.
OBJECTIVE
The purpose of this investigation was to estimate the impact strength of fractured anterior teeth reattached using three different restorative materials and compare their impact strengths to those of control.


METHODS
Sixty human maxillary permanent central incisors were selected and divided into control and experimental groups. The teeth in the experimental groups were fractured and then bonded using Composite resin, Compomer and resin-modified GIC. Intact teeth served as control. All the specimens were then tested in an impact testing machine.


RESULTS
The results revealed statistically significant differences between Compomer and resin-modified GIC groups, control and experimental groups. No statistically significant differences were observed between Composite resin and Compomer groups.


CONCLUSIONS
Thus the fractured fragments bonded with Composite resin and Compomer provided better adhesion than resin-modified GIC.
Prabhakar
A R
AR
Department of Pedodontics and Preventive Dentistry, Bapuji, Dental College and Hospital, Davangere - 577 004, Karnataka, India. attiguppeprabhakar@yahoo.com
Kurthukoti
A J
AJ
Kayalvizhi
G
G
D000268:Adhesiveness; D020770:Compomers / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D003793:Dental Restoration, Permanent / Q000379:methods*; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D007180:Incisor / Q000293:injuries* / Q000503:physiopathology; D008422:Materials Testing; D019279:Resin Cements / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D019228:Tooth Crown / Q000293:injuries* / Q000503:physiopathology; D014082:Tooth Fractures / Q000503:physiopathology* / Q000628:therapy
D020770:Compomers; D003188:Composite Resins; D003764:Dental Materials; D005899:Glass Ionomer Cements; D019279:Resin Cements