It is perfectly acceptable to use a sonic screwdriver if that is what will work for you and is what you are comfortable with. Even without pop-culture, people use different materials for wands and other tools all the time.
If your sonic screwdriver is like my sisters', then you may want to see about making one out of metal instead of the plastic/metal combination theirs is. The reason for that being that plastic is not considered a "natural" material or a material occuring via a natural event (like sand struck with lightening to make glass). You can still work with a plastic wand, but the connection to denser energy won't flow as easily. Some find this affects their workings, some don't. It's all trial, error, and personal preference.