Vital tooth tissue
Dentin and Cementum (not enamel)
Linkage Analysis
Studies families with more than one affected individual
Candidate Gene Analysis (Association Study)
Compares people with the disease (extrinsic- bacteria) to people with the disorder (intrinsic-genetic)
Case Control
polymorphism
2 or more alleles in population. may be benign or predispose to disease
3 theories of dentin sensitvity
Dentin directly innervated
odontoblasts are receptors
hydrodynamic (prevailing)
Oral Mucosa
Keratinized- masticatory- hard palate, gingia
specialized- tongue