Caries classification Flashcards
Class I
occlusal surface of pre/molars/molars
Class II
Proximal surfaces of posterior teeth
Class III
Proximal surfaces of anterior teeth
Class IV
Proximal surfaces of anterior teeth including incisal edge
Class V
Affecting cervical surfaces
Class Vi
Affecting cusp tips of premolars, molars and cuspids
Different between primary caries and secondary caries
Primary caries affecting coronal part of tooth that not previously had caries before.
Secondary caries around an existing restoration (recurrent caries)
Rampant caries
Occuring quickly, soft and pale in colour (bottle caries)
When are root caries most present
Patients with gingival recession, those with periodontal disease and in the elderly
Why does caries have to be cleared around the EDJ
To avoid spread between the two junctions
Why can affected dentine be left on the pulpal floor
To minimise pulp exposure, this can be left as the dentine is demineralised but not infected.
What can damage of the pulp lead to
Pulpitis (inflammation of the pulp)
Dental pain for the patient
Lining material can act as a therapeutic agent by protecting the dentine, what does the therapeutic stimulate…… to lay down ……… and to encourage ………. of dentine acting against remaining ………
odontoblasts
reparative dentine
remineralisation
bacteria
What does sealing dentinal tubules do
Protects pulp
prevents fluid containing bacteria, molecules and ions from entering the dentinal tubules
prevents pain and further caries
Methods of pulp protection for:
1. Minimal cavities
2. Moderately deep cavities
3. Deep cavities
- dental adhesive to seal dentinal tubules or no pulp protection
- layer of resin modified GI to give thermal and chemical protection
- Thin layer of setting calcium hydroxide therapeutic lining followed by a layer of resin modified GI
