Always be open to conversations about her mother and, unless extreme circumstances call for it, never stop her from seeing her at the times that have been agreed either by you or by the court.
With no female role model around on a daily basis, it will be dad’s job to give her the kind of unique support that a girl needs as she grows from a child in to a young adult.
Though it can be hard, it is by no means impossible.
The fact of the matter is that you have to trust in her behavior and in her decision-making and try to not be too overprotective.
If the movies and all other forms of media are anything to go by, the only thing that will come from being too strict or too protective of your daughter is that she will react in the only way that feels natural and completely rebel against you.