Purpose of Teeth • Primary teeth (/pr m r ti ːθ/mliečne zuby) maintain a space for permanent teeth (/pûr m -n nt ti ːθ/stále zuby)to come through. • To breakdown food into smaller pieces to aid in the process of digestion [d d st n, ɪˈ ʒɛ ʃə da -] ɪ . • Helps with speech • Personal appearance Tooth Structure • The anatomy of the tooth consists of root (koreň, hidden in the gum) and crown (korunka, visible part of the tooth). • The crown and root consists of hard and soft tissue. • The hard tissue covering the crown is called enamel (/ -n m l/ sklovina), a hard mineral surface, where as the root is covered by cementum(/s -m n t m/ ceme nt), a hardy mineral surface, however, it is softer compared to enamel. • The next layer under both enamel and cementum is dentin(/d n t n/zubovina ), the main bulk of the tooth. Dentin is considered a hard tissue. • The next layer under dentin is the pulp tissue(/p lp/ dreň) that is housed in pulp cavity. The pulp cavity has a rich blood supply and nerve supply, which is essential for maintaining tooth health. • The root of the tooth is embedded in bone, which is covered in tissue called gingiva/gums(/j n j -v , j n-j -/ ďasno). The root is held in plac e by strands of tissue that originated from the surrounding bone and embedded into cementum. These strands of tissue are called periodontal ligaments(/p r - -d n tl l g -m nt/periodontálne, ďasnové väzivo). Classification and Location of Primary Teeth and Function • Children have 20 teeth in their mouth- 10 teeth on both the top and bottom jaw. Each jaw consists of specific teeth, which are: • incisors (/ n-s z r/ rezák) (cutting teeth), • canines (/ k n n/ oč né zuby) (tear ing teeth) and • molars (/m l r/ stoli čky) (grind ing teeth- mastication (/m s t -k zh n/ žuvani e)). From the midline of one side of each jaw consists of: 2 incisors, 1 canine and 2 molars.