Enamel
√ Hard and white substance covering the teeth
√ The hardest and most highly mineralized
√ Protects the fragile underlying parts of the teeth
√ Covers the crown and supported by dentin
Component of enamel
√ 96% of enamel : mineral, water, organic material
√ contain two unique classes of proteins amelogenins and enamelins
√ The basic unit of enamel is called
Lipopolysaccharides (LPS), also known as lipoglycans,
are large molecules consisting of a lipid and a polysaccharide
joined by a covalent bond; they are found in the outer
membrane of Gram-negative bacteria, act as endotoxins and
elicit strong immune responses in animals.
LPS is the major component of the outer membrane of
Gram-negative bacteria, contributing greatly to the structu
6) 상악에서 치아 및 치조제 외에 국소의치 설계와 관련되어 검사해야 할 부위는?
① palate :의치의 support에 중요하다. palatal vault가 cortical 이고 균일한 collagenous CT fiber, keratinized epithelium으로 덮히고, 거의 평생 흡수되거나 형태가 변하지 않는다. Palatal vault의 깊이, 골융기나 외골류의 존재여부, hard palat
The sensory fibers of pulp transmit only pain,
whether the pulp has been cooled or heated
no response
mild to moderate degree of awareness of slight pain that subside within 1-2 sec
strong, momentary painful response that subside within 1-2 sec
moderate to strong painful response that lingers for several sec or longer