What type of cells form bone?
What type of cells resorb bone?
Osteocytes are trapped osteoblasts that maintain the bone matrix.
Immature bone that has a random collagenous structure is known as what?
Mature bone is known as what?
Cancellous (spongy) bone contains haversian canals.
What is the main component of enamel?
Dentine is innervated and can repair itself.
Dental pulp contains post natal stem cells.
Fluoride substitution in calcium hydroxyapatite promotes caries.
Carbonate substitution in calcium hydroxyapatite promotes caries.
What inorganic component does bone have?
What type of collagen do dentine, cementum and enamel all share?
Odontoblasts perform what function?
Cementoblasts perform what function?
Ameloblasts perform what function?
Matrix vesicle mineralisation occurs how?
Vesicles accumulate Ca2+ and P -> Internal surface mineralisation -> Rupturing (release of crystal) -> accumulation
Acid phosphoproteins bind to collagen -> promote crystal growth (scaffold)
Heterogenous nucleation mineralisation occurs how?
How does mineralisation in enamel occur?
Ameloblasts which secrete a matrix that acts as a scaffold
Odontoblasts which secrete a matrix that acts as a scaffold
Osteoporosis is when...
Bone loss > Bone deposition
Bone deposition > bone loss
What bone forms in a fracture site?
Fluorosis is characterised by...
High resistance to caries
Rapid deciduous tooth loss in children
Osteogenesis imperfecta is caused by a mutation in type 1 collagen.
Dentinogenesis imperfecta leads to hypomineralised enamel.
Amelogenesis imperfecta leads to hypomineralised enamel.
Dense connective tissue is found where?
Loose connective tissue is found where?
What is the function of fibroblasts?
What is the function of chondrocytes?
ECM is typically composed of what substances?
A meshwork collagen arrangement takes what sort of load?
A longitudinal collagen arrangement is for?
Ground substance is mostly composed of what?
What is hyaluronic acid and what is its function?
What is chondroitin sulphate and what is its function?
Offers compressional resistance in cartilage
Gives flexibility in cartilage