Medium density fiberboard should no be confused with particle board.
It’s much denser, and is called fiberboard because there are fibers in the wood material which help give it strength.
Kitchen cabinets for your kitchen remodel made of fiberboard will start up much better over time than particle board.
The exterior surface is still a thin veneer, but as fiberboard is a much smoother surface than particle board it tends to adhere better and will stay on indefinitely.
When you want good quality cabinets but find the plywood ones are too much for your budget, medium density fiberboard is probably the best choice for you.
I hope this information is useful to you. Other details about cabinet construction is available in other articles.