Endodontics- Diagnosis Flashcards
What are the 5 steps in the process of diagnosis
- why is the patient seeking advice
- history and symptoms prompting visit
- objective clinical tests
- correlation of objective findings and subjective details to create differential diagnosis
- formulation of definitive diagnosis
What are the main fibres that cause dental pain?
A -delta fibres
C fibres
With regards to dental pain what kind of pain is felt from A-delta fibres?
sharp pricking sensation
early shooting pain
With regards to dental pain what kind of pain is felt from C fibres?
Dull, aching or burning
late dull pain
What is the definition of an endodontic emergency ?
Pain and or swelling caused by various stages of inflammation or infection of the pulpal and /or periapical tissues
What can it be difficult to discriminate location of pulpal pain?
referred pain
what are some general rules when dealing with referred pain in teeth?
-always radiates to ipsilateral side (same side)
- anterior teeth seldom refer pain to other teeth or opposite arch
- posterior teeth often refer to opposite arch or periauricular area, but rarely to anterior teeth
- mandible posterior teeth refer pain to periauricular area (ear) more often than maxillary
What things are included in an endodontic examination?
- extraoral exam
- intraoral exam
- soft tissue exam
- intraoral swelling
- sinus tracts
- palpation
- percussion
- mobility
- periodontal exam
What can be seen here?
spreading cellulitis
eye closed due to swelling of a maxillary tooth
(would send to max fax in ambulance)
Give 4 examples of sensibility/vitality testing- pulp tests
- thermal
- electric
- laser doppler flowmetry
- pulse oximetry
What should be used for heat tests?
hot gutta percha- use vaseline
hot water and dental dam
Why should you not place too much heat on a tooth?
it can cause irreversible pulpitis
What is an electric pulp test and what fibres are primarily affected?
electric current used to stimulate sensory nerves
primarily A-delta fast conducting fibres
(unmyelinated C-fibres may not respond)
What are the stages of carrying out an EPT?
-dry teeth and isolate
-probe place on incisal edge or cusp (close to pulp horn proximity)
- conducting medium used
- circuit completed
- current slowly increases until response
Does EPT have any correlation between threshold and pulp condition?
no
Does EPT give any indication of reversibility of inflammation?
no
True/False: EPT of teeth with open apices is reliable
False
Name some examples of other special tests…
bite test (frac finder or tooth sleuth)
test cavity
staining and trans-illumination
selective anaesthesia
How many pre-op radiographs should be required?
two from different angulations
When assessing a radiograph what order should you review it?
crown
pulp
apex/bone/soft tissue
Name 7 pulpal diagnoses?
Normal Pulp
Reversible Pulpitis
Symptomatic Irreversible Pulpitis
Asymptomatic Irreversible Pulpitis
Pulp Necrosis
Previously Treated
Previously Initiated Therapy
What is the definition of a normal pulp?
Pulp is symptom-free and normally responsive to pulp testing
Pulp may not be histologically normal
“Clinically” normal pulp results in a mild or transient response to thermal cold testing, lasting no more than one to two seconds after the stimulus is removed
Compare the tooth in question with adjacent and contralateral teeth. Test other teeth first so that the patient is familiar with the experience of a normal response to cold