Evaluation of the effect of EDTA, EGTA and CDTA on dentin adhesiveness and microleakage with different root canal sealers.
The effect of chelating solutions EDTA, EGTA and CDTA on human dentin adhesiveness and microleakage with 4 sealers (Sealer 26, Sealapex, N-Rickert and Endofill) was evaluated in vitro. Whether or not there was a mathematical correlation between the tests of adhesiveness and microleakage was also evaluated. A total of eighty maxillary and mandibular molars were used to test adhesiveness. After wearing of the occlusal surface to obtain a flat surface, the sealer was placed with an aluminum cylinder (10 mm x 6 mm). Adhesiveness was evaluated with a 4444 Instron universal testing machine. Microleakage was evaluated in 160 maxillary canines after root canal instrumentation, obturation and clearing. The penetration of India ink in the apical region was measured with a measurescope. The teeth were divided into 4 groups: group 1, distilled water, group 2, EDTA; group 3, EGTA; group 4, CDTA. Sealer 26 and EDTA had the best results (p<0.01) for adhesiveness and microleakage. There was no correlation between the test for adhesiveness and microleakage.
Sousa-Neto
Manoel D
MD
Faculty of Dentistry, University of Ribeirão Preto (UNAERP), SP, Brazil. sousanet@unaerp.br
Passarinho-Neto
Jarbas Gonçalves
JG
Carvalho-Júnior
Jacy Ribeiro
JR
Cruz-Filho
Antonio M
AM
Pécora
Jesus D
JD
Saquy
Paulo César
PC
D000268:Adhesiveness; D000704:Analysis of Variance; D001729:Bismuth / Q000737:chemistry; D002126:Calcium Hydroxide / Q000737:chemistry; D002244:Carbon; D002614:Chelating Agents / Q000737:chemistry*; D004396:Coloring Agents; D003481:Cuspid; D001840:Dental Bonding; D003763:Dental Leakage / Q000145:classification*; D003804:Dentin / Q000648:ultrastructure*; D004492:Edetic Acid / Q000031:analogs & derivatives* / Q000737:chemistry*; D004533:Egtazic Acid / Q000737:chemistry*; D006801:Humans; D006813:Humidity; D008963:Molar; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation; D018915:Root Canal Preparation; D012459:Salicylates / Q000737:chemistry; D013223:Statistics as Topic; D013696:Temperature; D013997:Time Factors
D002614:Chelating Agents; D004396:Coloring Agents; C080618:N-Rickert sealer; D012387:Root Canal Filling Materials; D012459:Salicylates; C080620:Sealer 26; C028433:chinese ink; C074417:Endo-Fill; C055601:Sealapex; C005390:CDTA; D004533:Egtazic Acid; D002244:Carbon; D004492:Edetic Acid; D002126:Calcium Hydroxide; D001729:Bismuth