1/53
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
occlusion
the anatomical alignment of the teeth and their relationship to the rest of the masticatory system
malocclusion
any deviation from the ideal occlusal scheme
overjet
horizontal overlap
1-3mm
normal overjet
overbite
vertical overbite
2-4mm
normal overjet
open bite
absence of contact between the maxillary & mandibular teeth upon occlusion
deep bite
severe overlap of the maxillary incisors over the mandibular incisors when the dentition is in occlusion
crossbite
a discrepancy in the buccolingual relationship of the maxillary & mandibular teeth
angle’s classification of malocclusion
class I
class II
class III
class I
neutrocclusion
class II
distocclusion
retrognathism
class III
mesiocclusion
prognathism
Dewey’s modification of class I subtypes
class I type 1
class I type 2
class I type 3
class I type 4
class I type 5
class I type 1
class I molar relationship with anterior crowding
mesial drifting of the 1st molars
class I type 2
class I molar relationship with labioversion of the mx central incisors
class I type 3
class I molar relationship with anterior crossbite
class I type 4
posterior crossbite
class I type 5
mesial drifting of 1st molars
molar relationship of class I MO
mesiobuccal cusp of the mx 1st molar occludes with the mesiobuccal groove of the mn 1st molar
canine relationship of class I MO
mx canines lies between the mn canine & 1st premolar
molar relationship of class II MO
the mesiobuccal cusp of the mx 1st molar occludes between the mn 1st molar & 2nd premolar
canine relationship of class II MO
mx canine is mesial to the mn canine
molar relationship of class III MO
the mesiobuccal cusp of the mx 1st molar falls between the mn 1st & 2nd molars
canine relationship of class III MO
the mx canine is distal to the mn canine
class II subdivisions
class II division 1
class II division 2
class II division 1
class II molar relationship with mx centrals in extreme labioversion
class II division 2
class II molar relationship with mx centrals tipped palatally, mx laterals tipped labially or mesially
Dewey’s modification of class III subtypes
class III type 1
class III type 2
class III type 3
class III type 1
class III molar relationship with edge-to-edge bite
class III type 2
class III molar relationship with anterior crowding
class III type 3
class III molar relationship with anterior crossbite
alignment
shaping the arch based on the shape of the archwire
levelling
the incisal & occlusal surfaces of ALL teeth in one arch fall on the same plane
3 problems during angle’s paradigm
less emphasis was given to facial proportions & esthetics
excellent occlusion was unsatisfactory at the expense of facial proportions
it was impossible to maintain the post-treatment occlusal relationships
Dr. Charles Tweed & Raymond Begg in 1930s
reintroduced the extraction of teeth in united states and australia
soft tissue paradigm
states that both the goals & limitations of modern orthodontics & orthognathic treatment are determined by the soft tissues of the face, NOT by the teeth and bones
a combined orthodontic & orthognathic approach is routinely used to produce aesthetically & functionally superior treatment results in patients presenting with significant dentofacial deformities
primary treatment goal during angle paradigm
ideal dental occlusion
primary treatment goal during soft tissue paradigm
normal soft tissue proportions & adaptations
secondary goal during angle paradigm
ideal jaw relationships
secondary goal during soft tissue paradigm
functional occlusion
hard & soft tissue relationships during angle paradigm
ideal hard tissue proportions produce ideal soft tissues
hard & soft tissue relationships during soft tissue paradigm
ideal soft tissue proportions define ideal hard tissues
diagnostic emphasis during angle paradigm
dental casts / cephalometric radiographs
diagnostic emphasis during soft tissue paradigm
clinical examination of intraoral & facial soft tissues
treatment approach during angle paradigm
obtain ideal dental & skeletal relationships, assume the soft tissues will be all right
treatment approach during soft tissue paradigm
plan ideal soft tissue relationships & then place teeth & jaws as needed to achieve this
function emphasis during angle paradigm
TMJ in relation to dental occlusion
function emphasis during soft tissue paradigm
soft tissue movement in relation to display of teeth
stability during angle paradigm
related primarily to dental occlusion
stability of result during soft tissue paradigm
related primarily to soft tissue pressure & equilibrium effects
le fort I
floating palate
le fort II
floating mx
le fort III
craniofacial disjunction