In the Palmer notation, a letter is used in conjunction with a symbol designating in which quadrant the tooth is found.[4] For the deciduous teeth, the left and right central incisor would have the same letter, "A", but the right one would have the symbol, "┘", underneath it, while the left one would have, "└". For the permanent teeth, the left and right central incisor would have the same number, "1", but the right one would have the symbol, "┘", underneath it, while the left one would have, "└".[5]