Compléter Tooth partsVersion en ligne Complete par Mª Ángeles Martín 1 part tissue firmly Blood pulp teeth dentin substance cementum cells teeth periodontal enamel gums pulp through tooth ligament The is the hardest , white outer of the . The is a layer underlying the enamel . It is made of living , which secrete a hard mineral . The is the softer , living inner structure of . vessels and nerves run the of the teeth . The is a layer of connective that binds the roots of the teeth to the and jawbone . The is a tissue that helps hold the tightly against the jaw .
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