Test 2 Flashcards
Supplies needed
•Local anesthetic agents
–Lidocaine
–Bupivicaine
–Ropivicaine
–+/- Epinephrine
•25-27 gauge needles (+/- 22 gauge)
•1mL syringes
Maximum dosage 2mg/kg total
Possible side effects
•Loss of feeling and function to the blocked area could lead to self trauma
•Anaphylactic reactions
•Permanent nerve damage
•Toxicity to the skeletal muscle
•Cardiac side-effects
Sites and landmarks
Rostral maxillary/infraorbital
•Caudal root of 3rd pm
Caudal maxillary
•Enter the foramen (not in cats or brachycephalics) or distal to 2nd molar
Rostral Mandibular “Mental”
•distal to the mandibular labial frenulum
•ventral to the mesial root of the 306, 406
–(2nd premolars)
Caudal Mandibular/Inferior Alveolar
•Draw an imaginary line from lateral canthus of eye as a landmark
Commissure
Area where lips meet
Labial frenulum
Area where lip attaches to the gingiva
Canthus
Corners of the eye
Lateral and medial
Who can perform a block
State law regulates if a technician able to perform*
Early signs of gingivitis
Gingivitis → Periodontitis
Initial signs to look for:
○Gingival bleeding (earliest sign)
○Halitosis (early sign)
■Plaque bacteria
Later:
○Calculus accumulated on the teeth - hardened plaque
○Bloody saliva/drool
+/-:
○Depression; changes in eating/chewing patterns
What does a healthy gingiva look like?
-Vital tissue, bright pink pigmented color with even smooth flowing gingiva from tooth to tooth (Topography)
●No bleeding on probing
●Normal gingival sulcus depth***
◦Canine 1-3mm (4mm) >5mm abnormal
◦Feline 0-1mm
Gum recession causes and outcome
●Gingival recession occurs due to periodontitis*
●Area where the roots join the crown and now exposed
●Classified by depth
◦Class 1 <1mm
◦Class 2 >1mm
◦Class 3 complete
Exposure of root furcation
- how to grade, record, chart
Measured by depth via probe
What PD really is
- other health effects
Left untreated, gingivitis progresses to periodontitis.
Initial signs of gingivitis:
○Gingival bleeding (earliest sign)
○Halitosis (early sign)
Periodontitis is caused by accumulating subgingival plaque and the body’s response to it
Plaque is made of bacteria, food debris, exfoliating cells, salivary glycoproteins
Plaque can mineralize within 24 hours
Periodontium consists of 4 structures*
1.Periodontal ligament
2.Gingival connective tissue
3.Alveolar bone (the tooth’s socket)
4.Cementum
“Free gingiva” forms a moat around the tooth = the gingival sulcus*
Periodontal Disease Index
Can be generalised or localized
Stage 0 - No disease Stage 1 (PD1) - Gingivitis - reversible, no attachment loss (AL*)
Stage 2 (PD2) - AL < 25% or furcation 1 exposure
Stage 3 (PD3) - AL 25%–50% or furcation 2 exposure
Stage 4 (PD4) - AL > 50% or furcation 3 exposure
*AL (Attachment Loss) is usually best based on measurements with a periodontal probe and intraoral radiographs.
The bacteria occurring in the mouth can colonize
•Liver
•Kidneys
•Heart
•Lungs
Stage 1 Periodontal Disease
Do you see the build up of tartar and the slightly swollen
and reddened gums - this is the first sign of pain!
Brushing the teeth now may be painful
Note that there is NO BONE LOSS!!
Stage 2 Periodontal Disease
The gums are swollen and the crown to the
right is worn down but not much else can be seen.
You may not see any significant swelling or redness of the gums. On X-rays there is 0 to 25% bone
loss. See how fuzzy the bone is here - it should be sharp. When it is fuzzy that means some of the
mineralization is gone
Stage 3 Periodontal Disease
More than 25% bone loss
Do you see where ‘a’ is? It looks totally normal but it is not normal under the gum line.
There is serious bone loss in this location. Do you see ‘a’ now? If you cannot see this bone loss when you look into your pet’s mouth
neither can your veterinarian. Only X-rays can find this bone loss. This is caused by
plaque under the gumline.
Stage 4 Periodontal Disease
More than 50% bone loss
~ This red line is where the bone level (white
on X-ray) should be.
This yellow line is where the bone actually is. Treatment: × - These teeth should be
extracted
Define prophylaxis
Are there more accurate terms
Prophylaxis (routine cleaning) performed on patients with stage 1-2 for prevention
Periodontal therapy performed on patients with stage 3-4 periodontal disease
COHAT is more accurate
Why do we need anesthesia
Anesthetic dentals are safer than ever with use of
–Throughout pre-op exams
–Pre-op b/w
–Multimodal analgesia helps reduce total anesthesia needed
–Individualized anesthesia plans
–Careful monitoring
–Warming devices
–CETT airway management
–Post-operative observation and monitoring
What about anesthesia- free cleanings
Ineffective and unsafe
Using sharp instruments in mouth
Why COHAT not prophylaxis?
Complete Oral Hygiene/health Assessment and Treatment
COHAT*
●Why is not to a dental “prophylaxis”?
–80% of pets between the ages of 1-3 years of age present with dental disease**
Client education examples
Client Education
•Starts with etiology of bacteria and explanation of periodontal disease
•Set realistic expectations
•Client compliance
▫Has much to do with making home care accessible/reasonable
•Client’s physical ability
•Patient tolerance
–Can be trained/conditione
- 80% of pets have PD
- Need anesthetized exam in order to examine throughly the patients mouth
- Need X-rays to look at roots for extractions fractures disease that are painful
- Calculus should be removed since it effects other body systems
- anesthesia is individualized for ea patient via BW+ P.E + Extraoral exam.
- IVC allows for CNS access for drugs + fluids to main bp + temp
- ET tube placement allows for ongoing anesthetic admin/ maint
Order of operation
Efficiency and safety checklists
Order of Operation
Complete Intraoral exam
Chart as you go
+/- Administer local anesthesia (see Holmstrom Ch. 5)
+/- Radiographs - full mouth* (see Holmstrom Ch. 11)
–if extractions needed can be done at any time - do not clean teeth to be extracted*
1.Apply oral rinse
2.Gross calculus removal - supragingival
3.Subgingival calculus removal
4.Power scaling
5.Disclosing and touch ups
6.Polish
7.Rinse
8.Fluoride
What is oral rinse
What’s its purpose
Oral chlorhexidine rinse
●Use an oral solution to avoid bad taste
○0.12%
○0.2% for advanced periodontal disease
●Rinse prior to scaling to decrease aerosolization of bacteria
Checking in the patient on procedure day
A complete hx + dental hx and ability to provide home care
Obtain complete history plus anything pertinent to dentistry
S: Clinical signs?
*Not eating after showing initial interest
Pawing at mouth/rubbing face
Changes in eating/chewing patterns
Uncharacteristic aggression
Gingival bleeding
Part of Complete History and
Development of Treatment Plan
Oral home care history
Yes?
How often?
Types?
No?
Why?
Diet history
Toys
Treat
Types of food