DOH124 Lecture Notes - Lecture 5: Forensic Dentistry, Edentulism, Removable Partial Denture
DOH 124 NOTES
Week 5-7
Lecture 5 - Dentists and society
Dentistry
Study, diagnosis, prevention and treatment (surgical, nonsurgical, or related) of
diseases and conditions of the oral cavity, maxillofacial area and/or adjacent
structures and their impact on the human body, provided by a dentist within the
scope of their education/training/experience and in accordance with the ethics of
the profession and applicable law
- Regulated profession
- Can be disciplined
- Can lose the right to practice
Society
Group of people in persistent social interaction and/or sharing the same
geographic/social territory, generally subject to the same political authority and
dominant cultural expectations
Code of conduct
Dentists
Society
Record conversations in patient’s
Not commit fraud
dental record
Ensure consent given
Not ask dentists to commit fraud
Record discussion of associated risk
May withdraw consent
Accurate, dated records that cover all
aspects of treatment
Causes of poor oral health
Dentists try to prevent disease on an individual and societal level
Level
Description
Example
Primary
Promotion of health
Prevention of illness
Immunisation
Safe physical
environments
Secondary
Early detection
Prompt intervention
Treat early signs of
disease/correct
departures from good
health
Cervical screening
Mammography
Tertiary
Reducing
impairments/disabilities
Minimising suffering
Promoting patient
adjustment to chronic or
Prevention of
complications
irremediable conditions
Lecture 6 - Gypsum
Dental models are used as a foundation for the majority of prosthodontic
products
Composition
- Calcium sulfate dihydrate
- Heated → plaster of paris → water → gypsum
- Short setting time, reasonably strong, accurate models, cheap, non toxic,
convenient to use
- Brittle (strength in tension lower than strength in compression) → fracture if
dropped or chip or flake in repeated use
Plaster/stone/die stone
- Chemically identical
- Different size and shape of particles
- Thus differing in strength of the materials
- Gypsum products unstable at temps over 40C
Type
Production
Plaster
Heat gypsum between 120 and 180C
Calcium sulfate hemihydrate
(calcination/calcining)
Stone
Plaster reground (→ finer powder
particles) then heated with
Document Summary
Group of people in persistent social geographic/social territory, generally subject to the same political authority and dominant cultural expectations. Record discussion of associated risk may withdraw consent. Accurate, dated records that cover all aspects of treatment. Dentists try to prevent disease on an individual and societal level. Treat early signs of disease/correct departures from good health. Promoting patient adjustment to chronic or irremediable conditions. Dental models are used as a foundation for the majority of prosthodontic products. Heated plaster of paris water gypsum. Short setting time, reasonably strong, accurate models, cheap, non toxic, convenient to use. Brittle (strength in tension lower than strength in compression) fracture if dropped or chip or flake in repeated use. Thus differing in strength of the materials. Gypsum products unstable at temps over 40c. Plaster reground ( finer powder with particles) heated then steam at superheated several hours. Chemical additions further control size and shape of crystals of stone.
