SA extraction Flashcards
What clinical conditions would call of extraction of a tooth?
- Periodontal disease
- Relief of crowding/ retained deciduous
- FORLs
- Fracture
- Luxation
- Pulp necrosis - iatrogenic or traumatic
- Caries
- Chronic gingivostomatitis
- Unerrupted/ ectopic teeth
- Failure of restorative treatment
What is the difference between closed and open extraction
Non-surgical and surgical approaches (gingival/bone flap)
Why is sectioning of the tooth important for closed extraction?
So multirooted teeth can be sectioned into separate roots and removed appropriately - less chance of fracture.
Why should the water setting always be on when using a bur to section teeth?
Prevent burning of soft tissue - water is cooling!
Outline the process of closed extraction of teeth.
- Sectioning
- Cut gingival attachment
- Root luxation - gentle rotation of elevator
- Root elevation and extraction
- Root atomisation - using drill at high speed
- Socket treatment - +/- closing the socket
Which of the dogs teeth have three roots?
Maxillary PM4, M1, M2
Which of the dogs teeth has two roots?
Maxillary - PM2, PM3
Mandibular - PM,2 PM3, PM4, M1, M2
What complications may occur from closed dental extraction?
- Ankylosis
- Soft tissue damage
- Root fracture/ displaced fragments
- Oro-nasal fistula
- Dry socket
- Jaw fracture
Describe the incision depicted in B.
Pedicle incision with distal releasing incision
How do you raise a geingival flap?
Periosteal elevator
What tool is used to remove the bone overlying tooth roots in open extraction?
Dental drill
What technique should be used for gingival closure during an open extraction?
Small (4.0) absorbable suture
Distal to mesial
Simple interruped pattern (2-4mm apart)
Post op care of extractions
Analgesia (5-10 days)
Withholding toys
Chlorhexidine wash
Antibiotics - surgery is clean-contaminated
What is an envelop flap?
Incisions which have NO releasing incisions
Infraorbital nerve block
Insert local at the mandibular foramen which contains the intraorbital nerve (CN 5) which supplies sensory branches to the mandibular teeth.
- Maxillary incisors and canines
- PM1-3
- Rostral soft and hard tissues to PM4
Maxillary nerve block
Blocks the proximal maxillary nerve (prior to infraorbital)
- Maxillary PM4 and molars
- Soft and hard tissue caudal to PM4
Inferior alveolar nerve block
Blocks all of the mandibular teeth and tissues, may be done extraorally
Middle mental nerve block
Blocks the mental nerve as it comes out of the mental foramen
(REMEMBER to draw back!)
- Mandibular incisors
- Surrounding soft tissues
- Also premolars
