This document summarizes a presentation on the management of skeletal class II malocclusions. It discusses the etiology, components, classification, diagnosis, and timing of treatment for skeletal class II. It also describes different treatment options for growth modification in skeletal class II cases, including functional appliances and extra-oral appliances. The presentation provides details on how to assess patients for growth modification and classify different types of functional appliances.

1. Presented
by:
Prof. Sahar Taher
BDS, MSc, PhD
Cairo University

2. Etiology of Skeletal Class II
Skeletal
Class
II
Gene3c
Environmental
Mandibular
deficiency
syndromes
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

3. Components of Skeletal Class II
Skeletal
Class
II
Sagi>al
Plane
Maxillary
Prognathism
Mandibular
Retrognathism
Both
Ver3cal
Plane
Horizontal
Ver3cal
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

4. Classification of Skeletal Class II
Mandibular
retrognathism
+
Normal
maxilla
Maxillary
prognathism
+
Normal
mandible
Both
maxillary
prognathism
+
mandibular
retrognathism
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

5. Classification of Skeletal Class II
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

6. Diagnosis & Characteristic features of
Skeletal Class II
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

7. Diagnosis & Characteristic Features of
Skeletal Class II
How
to
assess
clinically
that
a
Class
II
case
is
indicated
for
Growth
Modifica3on
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

8.
What
is
Growth
Modifica3on?
It
is
the
a>empt
to
change
skeletal
rela3onship
by
using
remaining
growth
of
the
pa3ent
to
change
size
and/or
posi3on
of
the
jaw.
Timing of Skeletal Class II correction
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

9. Timing of Skeletal Class II correction
Intraoral
Examina3on
Principles
in
3ming
for
growth
modifica3on:
Timing
in
rela3on
to
amount
of
growth
remaining
Timing
in
rela3on
to
pa3ent
compliance
Timing
for
different
planes
of
space
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

10. For
each
pa3ent
the
b e n e fi t s
o f
e a r l y
treatment
must
be
considered
against
the
r i s k
a n d
c o s t
o f
prolonged
treatment
period
Timing of Skeletal Class II correction
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

11. Timing of Skeletal Class II correction
Intraoral
Examina3on
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

12. Timing of Skeletal Class II correction
Intraoral
Examina3on
Hand
wrist
Radiographs
Cervical
vertebrae
matura3on
index
Middle
Phalanx
of
third
finger
matura3on
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

13. Timing of Skeletal Class II correction
Intraoral
Examina3on
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

14. Management of Skeletal Class II
Growth
Modifica3on
for
skeletal
Class
II
Restraining
S3mula3ng
Redirec3ng
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

15. Management of Skeletal Class II
Growth
Modifica3on
for
skeletal
Class
II
Func3onal
Appliances
Orthopedic
Extra-­‐oral
Appliances
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

16. Working
bite
registra3on
Management & classific. of appliances
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

17. Components
of
func3onal
appliances
Management & classific. of appliances
Components
to
advance
the
mandible
Ver3cal
control
components
Stabilizing
components
Passive
components
Ac3ve
Expansion/Alignment
components
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

18. Management & classific. of appliances
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

19. Dura3on
/
day
Time
of
the
day
Management & classific. of appliances:
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

20. Management & classific. of appliances
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

21. Management & classific. of appliances
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

22. Extra-­‐Oral
Appliances
Management & classific. of appliances
Type
&
Amount
of
force
Dura3on
of
force
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

23. Management of Skeletal Class II
Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017

24. Prof.
Sahar
Taher,
BDS,
MSc,
PhD
21/11/2017