De or het stressincontinentie?

The correct Dutch article is:

de stressincontinentie

Rule Words ending in -tie and -sie: almost always de. See the rule

How to use stressincontinentie

the stressincontinentiede stressincontinentie
this stressincontinentiedeze stressincontinentie
that stressincontinentiedie stressincontinentie
our stressincontinentieonze stressincontinentie
your stressincontinentiejouw stressincontinentie
every stressincontinentieelke stressincontinentie
which stressincontinentie?welke stressincontinentie?
a big stressincontinentie / the big stressincontinentieeen grote stressincontinentie, de grote stressincontinentie