Effectiveness of the current enamel-dentinal adhesives: a new methodology for its evaluation.
Two Class II boxes of standardized dimensions were prepared in each of 10 extracted third molar teeth. The dentinal adhesives Syntac, Gluma 2000, Scotchbond MP, and All-bond 2 were applied to five boxes each. All the boxes were restored with the same photopolymerizing resin composite. The microleakage of each restoration was measured in the permeability cell. The physiologic solution able to seep between the walls of the cavity and resin composite was measured and the flux of the liquid over time was calculated. All-Bond 2 was the only adhesive found, in some specimens, to make the dentin completely impermeable and to form an extremely precise seal between the resin complete material and the underlying dentinal surface. The flux values for all four adhesives were significantly different; Syntac allowed the greatest amount of microleakage. However, these in vitro results should not be considered absolute values.
Pagliarini
A
A
Department of Conservative Dentistry, University of Ferrara, School of Dentistry, Italy.
Rubini
R
R
Rea
M
M
Campese
C
C
Grandini
R
R
D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding; D003763:Dental Leakage / Q000517:prevention & control; D017220:Dentin-Bonding Agents; D005069:Evaluation Studies as Topic; D005998:Glycine; D006801:Humans; D008422:Materials Testing / Q000295:instrumentation / Q000379:methods; D008689:Methacrylates; D010070:Oxalates; D019279:Resin Cements; D012822:Silicon Dioxide; D015040:Zirconium
C074864:All-Bond system; D003188:Composite Resins; D017220:Dentin-Bonding Agents; C092418:Gluma 2000; D008689:Methacrylates; D010070:Oxalates; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; C078484:Syntac dentine adhesive; C083568:Z100 composite resin; D012822:Silicon Dioxide; D015040:Zirconium; D005998:Glycine