Lecture 1 Flashcards
What are the 3 classifications of dental materials
- Preventative materials 2. Restorative materials 3. Auxiallary materials
Preventative materials
Materials that slow or prevent the onset and progression of disease
Restorative materials
synthetic components that repair or replace damged or missing tooth
Give two examples of restorative dental material
Crown & veneers
Define:
Restorative (temporary) materials
Materials used to restore for a SHORT period of time
Restorative (definitive)
Long term or final treatment
Auxiliary Dental Materials
Materials that are used to fabricate restorations but do not become a part of the restoration. ex. dental stone
Biomaterials
Any material that interacts with biological systems
What is the composition of Enamel
96% inorganic (mineralized) 1% organic 3% water
Where is Hydroxyapatite (HA) found in the body?
Any hard tissue ex. Enamel, dentin, bone
What is the name where Dentin & enamel meet
Dentinoenamel Junction (DEJ)
What cells form enamel
ameloblasts
In enamel bonding, enamel is etched with…?
Phosphoric acid
What is the most beneficial substitution to (HA)
Fluoride which substitues the hydroxyl group to make Flouriapatite
Define Dentin
Dentin is a complex hydrated composite structure that forms the majority of the tooth