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
Rooster Teeth were released on the Rooster Teeth website as the beginning of season three. Halfway through season four, Burns announced the cancellation of "Rooster Teeth Shorts" for several new series. However, on April 1, 2013, Rooster Teeth announced "Rooster Teeth Shorts" would return with a fifth season, on the same day, the season premiere episode "Reunion" was released and marked the tenth anniversary of the company. On August 22, 2013, Rooster Teeth released six, six-second mini episodes exclusively through the video sharing service Vine. Six more were published on September 13, 2013. The third set was released on October 11, 2013,