erosion lec Flashcards
what is Dentine hypersensitivity
is dental pain which is sharp in character and of short duration, arising from exposed dentin surfaces in response to stimuli
Corrosion definition
Gradual destruction of material, usually metal, by chemical reaction with its environment
What does this image show
Clinical appearance a late manifestation of erosion on subsurface process
What must H+ diffuse through to cause erosion
Plaque and pellicle
are the crystals found in dentine smaller or bigger compared to enamel
smaller
what must H+ combine with to cause erosion
carbonate/phosphate ion
is vomitting a intrinsic or extrinsic factor
intrinsic
how do gastric contents reach oral cavity
vomiting
regurgination
gastroesophageal reflux
rumination
what are the organic disorders associated with vomiting
disorders of the GIT
metabolic and endocrine disorders
drug side effects
what are the psychosomatic disorders associated with vomiting
CNS disorders with raised intracranial pressure
nerulogical disorders
psychosomatic disorders
drug side effects
how do Regurgitation & Reflux differ from vomiting
- Lack of diaphragmatic muscular contraction
- Relatively small quantity of material ejected
- Generally associated with increased gastric volume and pressure
what is remunation
- Special form of regurgitation
- gastric contents regurgitated, chewed and reswallowed
what are teh Biological factors modifying the erosion process
- Tooth composition and structure
- Dental anatomy and occlusion
- Soft tissue anatomy and physiological function
how does saliva work agaisnt erosion
dilution and clearance
neutralisation and buffering
acquired pellicle formation
provision of Ca, phosphate and fluroide - for remineralisation
dental anatomy may make erosion more susceptible such as
tooth prominence
cervical area of tooth
