Deciduous teeth first teeth seen in the mouth are the mandibular centrals and the last are the maxillary second molars. The primary teeth are made up of central incisors, lateral incisors, canines, first molars, and secondary molars; there is one in each quadrant, making a total of four of each tooth. All of these are gradually replaced with a permanent counterpart except for the primary first and second molars; they are replaced by premolars. The replacement of primary teeth begins around age six, when the permanent teeth start to appear in the mouth, resulting in mixed dentition. The erupting permanent teeth cause
Illyrian deciduous forests Illyrian deciduous forests The Illyrian deciduous forests form a terrestrial ecoregion of Europe according to both the WWF and Digital Map of European Ecological Regions by the European Environment Agency. It belongs to the biome of Mediterranean forests, woodlands, and scrub, and to the Palearctic ecozone. The Illyrian deciduous forests stretch along the eastern coast of the Ionian and Adriatic Seas (including the islands) and occupy in Northern Greece, Albania, Montenegro, Bosnia and Herzegovina, Croatia, Slovenia and Northern Italy near Trieste. The ecoregion is surrounded by the Aegean and Western Turkey sclerophyllous and mixed forests (in Greece), Pindus Mountains mixed