Converse of object

• prevent: Bibby J. M. , Hukins D.W. ( 1993 ) ' Acidification is not a feasible method for preventing encrustation of indwelling urinary catheters ' .

• reduce: Because of the risk of introducing infection, they should not be used to reduce catheter encrustation - rather the catheter should be replaced.

• dissolve: Conventional prevention and treatment of this problem involves acidification of the urine in order to prevent or dissolve the encrustation.

• form: The galls form very hard woody encrustations on the seed bearing stem.

• resist: Morris N. , Stickler D. , Winters C. ( 1997 ) ' Which indwelling urethral catheters resist encrustation by Proteus mirabilis biofilms?

• remove: The blades may need knocking occasionally with a hammer to remove encrustations.

Adjective modifier

• urinary: Getliffe K. , Hughes S. , Le Claire M. ( 2000 ) ' The dissolution of urinary catheter encrustation ' .

• white: The lower area of the vessel is worn and there are traces of white encrustation.

• recurrent: Getliffe K. ( 2002 ) ' Managing recurrent urinary catheter encrustation ' .

• black: Thick white, cream and black encrustation, especially in the damaged area.

Preposition: on

• surface: There is significant encrustation on the surface of this figure excluding the face, which is particularly smooth.

Noun used with modifier

• catheter: This demonstrated a poor control and a larger sample with catheter encrustation in both methods is needed.