Ekspresi immunohistokimia matriks metalloproteinase (MMP-2) terhadap sel epitel dan fibroblast ameloblastoma tipe folikuler, pleksiform, dan campuran: Penelitian pada pasien RSCM 2009-2014 = Expresion immunohistochemical of matriks metalproteinase 2 (MMP-2) in epitel and fibroblast ameloblastoma folikuler, pleksiform and mixed: Case study in RSCM 2009-2014