Effects of diameter, chemical impregnation and hydration on the tensile strength of gingival retraction cords.


Gingival retraction cords are useful clinical aids but little information is available regarding desirable physical features that would preserve their integrity under tensile forces. The study aimed to establish under experimental conditions the extent to which tensile strength is affected by variation in cord diameter; impregnation with ferric sulphate (FS… (More)


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