principles and planning of surgical extraction Flashcards
(18 cards)
what is the order for planning surgical extraction, 7
- tooth removal
- path of withdrawal
- position of application of instruments
- identify obstacles
- methods to overcome obstacles
- flap design
- incision and reflection
when might a tooth require sectioning?
if each root has a different path of withdrawal
where is the position of application of instruments usually?
medially - easier to access
when may there be more than one position of application of instruments?
if the tooth is sectioned
there are two types of obstacles what are they?
extrinsic and intrinsic
name some extrinsic obstacles
Bone, soft tissues, anatomical features, adjacent teeth, pathology, location, space
name some intrinsic obstacles
Crown, roots (number, morphology, angulation), pathology (caries, resorption), ankylosis
what are some methods to overcome obstacles?
bone removal, sectioning, soft tissue removal
how many receiving incisions does an envelope flap have?
none
how many relieving incisions does a two sided flap have?
1
how many relieving incisions does a 3 sided flap have?
2
what flap design is this
envelope flap
what flap design is this
2 sided flap
what flap design is this
3 sided flap
basic principles of flap design 8
broad ?
extend ????
incision margins are ?
avoid/include ??
flap without ?
include ?
incisions avoid leaving areas ?
? relieving incision
-broad base
-extend one unit either side
-incision margins are supported
-avoid/include important structures
-flap without tension
-include papilla
-incisions avoid leaving areas avascular
-anterior relieving incisions
what scalpel size is used for incision?
11 or 15
importance of palpating to ensure cutting on top of bone
maxillary 3rd molar incision
