For a non-EU resident with a Dutch residence permit, “permanent residence” can involve more than one status. The IND assesses the route you qualify for; long-term EU resident status can be particularly relevant if you may later move within the EU.
Permanent regular residence
The standard IND route normally starts with at least five consecutive years holding a valid Dutch residence permit, with the Netherlands as your main residence throughout. Other conditions apply and there are exceptions to the five-year period.
EU long-term resident
This is a distinct residence status, not the same thing as being an EU citizen. It can make a later residence application in another participating EU country easier, but that other country still applies its own admission rules.
Civic integration
For permanent regular residence and EU long-term resident status, applicants usually have to meet the civic-integration requirement unless an exemption or dispensation applies. Check the current IND page before planning an exam around an old requirement.
EU/EEA/Swiss citizens: use the EU-law route
If you are an EU/EEA/Swiss citizen, do not use a guide for Dutch residence-permit holders as if it were your route. Free-movement residence and permanent residence under EU law have their own conditions. Family members can also have different documentation depending on nationality.