LA
Med Emergencies
Ultrasonic
Guess the injection
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200

What are the 3 absolute contraindications to LA?

Cocaine/meth use within 24 hours

Allergy to LA

Allergy to sodium bisulfite (Epi only)

200

What are the symptoms of a stroke and how is it managed?

Headache

Face drooping

Arm weakness

Slurred speech

Time is of the essence

Reassure patient, call 911, 02, ABCs, record time

200

The ultrasonic instrument has the same angulation as the periodontal probe which is _____________ degrees

0-15 degrees

200

This injection cannot be given to individuals with bleeding disorders or who are on blood thinners

PSA 

200

How often is HH checked/updated

Every visit

400

What local anesthetics are available for use at CNC?

Lidocaine 2% 1:100,000

Prilocaine 4% Plain

Mepivacaine 3% Plain 

Articaine 4% 1:200,000


400

What are 3 ways we prevent medical emergencies

1. Comprehensive HH and risk assessment

2. Check meds and med usage

3. Anxiety recognition and stress management

400

Once the ultrasonic has been set up, what needs to be done before the instrument insert can be placed in the cavitron hand piece?

The handpiece must be filled with water 

400

This injection does not provide pulpal anesthesia unless pressure is applied firmly to the area  

Incisive 

400

Explain the contaminated needle injury protocol at CNC

Let the wound bleed

Wash with soap and water thoroughly

Inform and instructor

Be seen by a Dr or the Emergency department within 4 hours of injury 

600

Which local anesthetics are safe for pregnancy?

Lidocaine and Prilocaine 

600

A patient undergoing this medical emergency should not be given oxygen

hyperventilation

600

What does it mean when the ultrasonic handpiece gets very hot and how is it corrected 

not enough water to cool it; turn up the water

600

Pressure anesthesia is also a requirement in addition to topical for these injections 

Nasopalatine

Greater palatine 

600

What are the differences between primary and permanent teeth


Primary: smaller; whiter; pointed cusps; shorter roots, larger pulp chambers, thinner enamel

Permanent: Larger; darker; blunt cusps; longer roots; smaller pulp; newly erupted have mamelons; thicker dentin

800

What are the Relative contraindications to Epi?

BP 140/90+

Meds: TCA, MAOi, Non-specific beta blockers, phenothiazines

Hyperthyroid

Sig. Cardiovascular disease (ASA III or higher)

Uncontrolled diabetes 

800

What should you do if your patient starts having a medical emergency at CNC

•Stay with patient

•Send for instructor

•Someone to bring O2 tank + emerge kit

•Student to provide a synopsis of medical history

•Instructor will assess situation, take VS, determine need for distress call, initiate or continue appropriate emergency measures

800

Small horizontal strokes that move apically along the tooth is also known as this technique 

channeling 

800

These two injections are given using a 25G long needle

IA and Long Buccal 

800

Explain 5 various management strategies a DH might implement for a person with periodontal risks.

1. More frequent recalls

2. Chlorhexidine rinses

3. OHI

4. Lifestyle counseling (smoking cessation, diet changes)

5. Referral to periodontist

1000

What are the 8 relative contraindications to LA 

Pregnancy

Malignant hyperthermia

Methemoglobinemia 

Atypical plasma cholinesterase

Opioids

Sig. Kidney disease

Sig. Liver disease

Sulfoamides (esters)

1000

Stable vs Unstable angina 

Stable: predictable (common triggers), ASA III, can be managed with nitroglycerine 

Unstable: spontaneous/unpredictable pain, ASA IV, can lead to cardiac distress, call 911 

1000

The 4 ultrasonic stroke types

Horizontal

Vertical

Oblique

Tapping 

1000

This injection has very limited use for dental hygienists 

Infiltration 

1000

What do the different Tri-plaque colours mean and what 2 allergies contraindicate the use. 


Pink = fresh/pellicle

Purple = mature biofilm (at least 48 hours old)

Blue = cariogenic biofilm (very acidic)

Parabens and red dyes