Claiming on Med 2 form if only working in the country from Jan to May?

Hi...hoping someone might be able to help me with this one. My sister was working in Ireland from Jan to May 2008 in a bank (entry level job). She left in May to go work in Lanzarote and has been there since. However, between Jan and May she got a good bit of dental/orthodontic work done costing about 2,500 euro. Would she be entitled to claim anything back on a Med2 form based on her employment until May 2008? Thanks.

She can claim a refund of tax - if she has paid tax - however, if she only worked for a short time and her tax was covered by her tax credits - she may not have paid any.