Y2 S1 Diagnosis of conditions of the pulp Flashcards
When performing tests, what should you always do as a control?
Test a similair tooth type to compare to, provides a baseline.
Describe tooth percussion testing.
Tapping on incisal or occlusal surface with the end of a mirror handle, perpendicular to the crown. Also use gentle digital pressure to detect highly tender teeth.
Highly tender teeth should not be tapped with mirror handle.
Alternative: biting test- patient bites down on cotton bud.
Describe palpation testing.
Apply firm pressure on the mucosa overlying the apex of the tooth. A painful response to palpation indicates periapical inflammation.
Describe cold testing.
Isolate and dry the tooth, apply ethyl chloride.
More sensitive than EPT so more reliable at indicating a non-vital tooth.
Describe heat testing.
Tooth is isolated and dried and surface is coated with petroleum jelly before applying hot gutta percha.
Not recommended as it unnecessarily heats the pulp.
Not used as often, less accurate but needed in some cases.
Describe electric pulp testing.
Apply small amount of prophy paste to tip, have patient hold the handle and let go when they feel the sensation.
How is periodontal probing used to form an endodontic diangosis?
- Used to identify periapical lesions
- A perio pocket of pulpal origin is narrow
- Healthy perio pocket is wider and has varying depths
Why and how is mobility testing used in endodontics?
- Place index finger on lingual surface and apply pressure buccally with mirror handle
- Movement of more than 2-3mm or depression indicates that a tooth may be a poor candidate for RCT
Why and how are test cavities used in endodontics?
- Preparation without anaesthesia using a small and short bur
- If pulp is vital the patient will experience pain, if not, the pulp is likely necrosed
Why may transillumination be used in endodontics?
To identify longitudinal crown fractures and infarctions.
