Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Kubatana kwegingiva nezino kunonzi dentogingival junction. Iyi junction ine mhando nhatu dzeepithelial: gingival, sulcular, uye junctional epithelium. Mhando nhatu idzi dzinobva mumasero eepithelial anozivikanwa seepithelial cuff pakati pezino nemuromo. Zvakawanda nezvekuumbwa kwegingiva hazvinzwisiswi zvizere, asi zvinozivikanwa kuti hemidesmosomes inoumbwa pakati peepithelium yegingiva nezino uye inokonzera kubatana kwepithelial yekutanga. Mahemidesmosome anogovera nzvimbo yokuvharira pakati pemasero kuburikidza nezvimiro zviduku zvakafanana netambo zvinogoverwa nezvakasara zvema ameloblasts. Kana izvi zvangoitika, junctional epithelium inoumbwa kubva kune yakaderedzwa enamel epithelium, chimwe chezvigadzirwa zve enamel nhengo, uye inopatsanuka nekukurumidza. Izvi zvinoguma nokuwedzera kukura kwechikamu cheepithelial chinopindirana uye kuparadzaniswa kwezvakasara zveameloblasts kubva kune chero kupi kwekudya. Sezvo ameloblasts inochinja, gumival sulcus inogadzirwa.  Mubvunzo: Inzira ipi inoguma nokugadzirwa kwegingiva sulcus?
ameloblasts inochinja