Sweep 1.1 Flashcards
Band & loop
● Loop contacts, but doesn’t encompass—— → allows ——- when lateral incisor erupts
1° canine
lateral canine movement
Band and loop
● Loop wide enough for —–
premolar eruption
Band and loop
■ Recall every —- months
3-6
● Distal shoe
○ Indication ⇒ ONLY when —— lost before eruption of —–
primary 2nd molar
permanent 1rst molar
● Distal movement of max. molars (in Class II correction)
○ Class II elastics less effective
Applications of TAD:
- Holding arches
○ Construct with ——– (facilitates tooth alignment)
■ ———- most reliable; typically keyhole design used
○ Resolves —— discrepancies
○ Limitations as a tooth mover:
■ No —–
■ Difficult to move teeth with ——- (can be uncomfortable)
ideal arch form
Soldered arches
faciolingual
rotation
heavy wire
- Holding arches with tooth movement
○ LLHA controls —– & coordination
■ Can control —– and move teeth (primarily via tipping)
■ NOTE: Flat anterior segment does NOT resolve around an ideal arch form
○ LLHA can be used as —–
○ LLHA biomechanics may require adjustment
■ Heavy tipping force, so needs to be placed ——- on teeth you want to move
arch form
arch length
retainer
passively
Generalized spacing with protrusion:
○ Fixed appliance
■ Bracket & tube; —— contact
■ Bodily movement with anchorage on ——
molars
2 point
Generalized spacing with protrusion: ○ Removable appliance with labial bow ■ ----- contact → tips uppers ------ ■ Anchorage to -------- (& palate) ● Retention via ------- ■ --- month treatment ● Activated -------- movement per month
One-point
lingually
posterior attachment
adams clasp
< 6
2 mm for 1 mm
● Diastema Treatment options:
○ Tipping with finger spring
■ Reciprocal —-
■ Removable provides short term retention; long term with ———
anchorage
lingual bonded retainer
● Diastema Treatment options:
○ Bodily movement with any archwire (round or rectangular) - reciprocal anchorage
■ Long term retention with ——-
lingual bonded retainer
● Expansion of ——– least stable
lower canine
● Late growth:
○ Maxilla —— growth & Mandible ——- growth post-adolescence
downward
forward
○ Women ⇒ more ——— growth; Men ⇒ more ——— growth
maxillary
mandibular
Class II mandibular retrusion:
● Treatment with functional appliances
○ Brings mandible ——, ————- & allowing ——- growth
○ Forces push mandible forward & maxilla backward → upper teeth ——; lowers —–
forward
unloading condyle
mandibular
retrude
protrude
Class II mandibular retrusion:
● Example of functional appliance pt:
○ Mandible comes forward more than ——
○ Maxilla maintains normal
downward
downward growth, but less forward growth
Class III maxillary retrusion
● Treatment with —–
○ Can expect—– mm of forward maxilla growth in year
○ Mandible ——- → patient profile becomes more convex
○ Upper incisor protrusion
● Only effective in children ——— - before sutures fuse
facemask - reverse pull headgear
2-3
rotates down & back
< 10-11 y/o
When is early treatment justified: ● For class II ⇒ based on
benefits of esthetics or trauma reduction
When is early treatment justified: ● For class III ⇒
True maxillary deficiency
also:
● Posterior crossbites
Fracture healing phases:
● Inflammation → ——
● Soft callus → ——— to form around & inside fracture site
● Hard callus → —— to form inside/around fx site; bone ——
● Remodeling → newly formed bone remodeled; bone resorbed to its original condition
bone fractured
soft tissue starts
minerals start
reunites
● Start growth modification at CVMS
2 or 3
○ Stage 3 indicates peak growth
● Reverse pull → growth modification started late, so only ——- effect (upper proclined)
camouflage
Combination of distal crown tip & mesial root tip
● Goal is distal crown tip, but want to prevent extrusion
○ To prevent extrusion → use
T-loops or helical mechanics to intrude tooth &/or move roots mesially
Congenitally missing maxillary lateral incisors
● Treatment plan depend on pt:
○ Class II with overjet →
treat canine as lateral & close space to reduce overjet
Congenitally missing maxillary lateral incisors
● Treatment plan depend on pt:
○ Class I →
distalize canines to class I position & restore w/ implants
○ Alignment: ⇒ initial correction by —–
■ Minimal crowding → non-extraction; teeth tipped labially & buccally to increase arch
■ Moderate/severe crowding → ——-
tipping
extraction
○ Leveling
■ Via extrusion - ——-
● Extruding posteriors to fix deep bite → changes ———-
● Easier; less complex biomechanics
continuous arches
vertical dimension
○ Leveling
■ Via intrusion - —–
● Intruding anteriors to fix deep bite → No change in ——
● Deep bite with excessive incisor display → anterior intrusion corrects deep bite & reduces incisor display at rest
● Deep bite with ideal incisor display → either extrude
pass arches
vertical dimension
posterior or intrude mandibular anteriors depending on pts face height
- A-P correction, space closure (in extraction cases), & determine optimal anchorage
○ By end of 2nd stage - close remaining spaces in ———, create —— & —— with ideal ———
extraction cases
class I molar
canine
overjet and overbite
- A-P correction, space closure (in extraction cases), & determine optimal anchorage
○ Space closure via ——–
■ Often a couple mm of space is left in ——
■ Canine retraction first, then incisors -
● Retracting all 6 to close space requires too much ——
sliding mechanics
1rst PM area
anchorage
- A-P correction, space closure (in extraction cases), & determine optimal anchorage
○ Space closure via ——-
■ Tend to be more complex, traps food, and prone to distortion
■ Used for more complex cases
retraction loop mechanics
Root paralleling, torque, & individual tooth precise positioning
○ Individual tooth precise positioning - 1rst, 2nd, 3rd order control
■ Ensure ——
● Correcting midlines best done in —— when closing spaces
● Minor midline deviations can be corrected in ——-
midlines align
2nd stage
3rd stage with asymmetric elastics
OSU recommendation - obtain pano —– before finishing, so when you start 3rd stage, all these movements can be accomplished before the brackets are taken off
~3-6 mo
Hawley Retainer - most commonly used
○ Holds teeth —— in very precise position, but also allows for —– settling
■ ——– possible - minor tooth position changes possible by adjusting wire
labial-lingually
occlusal
Limited tooth movement
Hawley retainer;
○ Passive component ⇒
palatal/lingual acrylic base
Hawley retainer:
○ Active component ⇒
labial bow
Hawley retainer
○ Retentive clasps on
molars (adams clasps
Two types of bonded fixed retainers:
braided, rigid
● Braided ⇒ braided wire bonded to ——-
○ —— bonded to wire
○ Light braided twist wire allows for physiologic movement (more flexible?)
lingual aspect of teeth (often canine to canine)
Each tooth
● Rigid ⇒ only bonded to the ——-
○ Rigid bar rests on lingual surface & prevents relapse; easier to clean
○ 0.030 wire
terminal teeth
Fixed retainers:
● Major indications ⇒ when —— instability anticipated &/or prolonged retention desired
○ Maintenance of ——- position
■ Significant —— tends to relapse
○ Maintenance of space closure
■ Large diastemas also tend to relapse
○ Extraction space maintenance in adult; pontic space maintenance
intra-arch
lower incisor
rotation
Fixed retainers:
Disadvantage
○ Does not maintain ———
posterior transverse dimension
Removable retainers:
● Indications ⇒ —–
● Advantages ⇒ ——-
○ Controls ——- (Hawley good at retaining deep bite correction)
○ Maintains ——- (Hawley good for retaining crossbite correction)
extraction cases
hygienic & active tooth movement possible
bite depth
posterior transverse dimension
