acific Coast Society of Orthodontists Bulletin Summer 2018 - 49

Angle Pearls
Special Section

RETENTION

Interim Retainers
Editor's Note: This is our third "Angle Pearls" column, edited by Dr. Gerald Nelson. We have three
components of the Edward H. Angle Society of

Orthodontists in the PCSO. All Angle members
from the PCSO are welcome to submit their
pearls to him for future issues.

Conventional interim retainer

Modified interim retainer

When used in the mixed dentition, the retainer
on the left has drawbacks:

The retainer on the right is the one that serves
best the purpose of an interim retainer. It holds
the arch length from molar to incisor and leaves
the buccal segments completely free to transition without doctor monitoring.

Dr. Gerald Nelson
UCSF Orthodontic Division

 The plastic is not trimmed away from emerging teeth, so when the permanent premolars
erupt, they could be forced buccally into crossbite.
 The deciduous second molars are clasped
instead of the permanent first molars. This
prevents you from continuing the retainer
through the transition and loss of the deciduous second molars.

Summer 2018  PCSO Bulletin

Below is an example of a lab request. Mark the
plastic border away from the buccal segments
and indicate a bite plane if appropriate. 

49



Table of Contents for the Digital Edition of acific Coast Society of Orthodontists Bulletin Summer 2018

No label
acific Coast Society of Orthodontists Bulletin Summer 2018 - No label
acific Coast Society of Orthodontists Bulletin Summer 2018 - 2
acific Coast Society of Orthodontists Bulletin Summer 2018 - 3
acific Coast Society of Orthodontists Bulletin Summer 2018 - 4
acific Coast Society of Orthodontists Bulletin Summer 2018 - 5
acific Coast Society of Orthodontists Bulletin Summer 2018 - 6
acific Coast Society of Orthodontists Bulletin Summer 2018 - 7
acific Coast Society of Orthodontists Bulletin Summer 2018 - 8
acific Coast Society of Orthodontists Bulletin Summer 2018 - 9
acific Coast Society of Orthodontists Bulletin Summer 2018 - 10
acific Coast Society of Orthodontists Bulletin Summer 2018 - 11
acific Coast Society of Orthodontists Bulletin Summer 2018 - 12
acific Coast Society of Orthodontists Bulletin Summer 2018 - 13
acific Coast Society of Orthodontists Bulletin Summer 2018 - 14
acific Coast Society of Orthodontists Bulletin Summer 2018 - 15
acific Coast Society of Orthodontists Bulletin Summer 2018 - 16
acific Coast Society of Orthodontists Bulletin Summer 2018 - 17
acific Coast Society of Orthodontists Bulletin Summer 2018 - 18
acific Coast Society of Orthodontists Bulletin Summer 2018 - 19
acific Coast Society of Orthodontists Bulletin Summer 2018 - 20
acific Coast Society of Orthodontists Bulletin Summer 2018 - 21
acific Coast Society of Orthodontists Bulletin Summer 2018 - 22
acific Coast Society of Orthodontists Bulletin Summer 2018 - 23
acific Coast Society of Orthodontists Bulletin Summer 2018 - 24
acific Coast Society of Orthodontists Bulletin Summer 2018 - 25
acific Coast Society of Orthodontists Bulletin Summer 2018 - 26
acific Coast Society of Orthodontists Bulletin Summer 2018 - 27
acific Coast Society of Orthodontists Bulletin Summer 2018 - 28
acific Coast Society of Orthodontists Bulletin Summer 2018 - 29
acific Coast Society of Orthodontists Bulletin Summer 2018 - 30
acific Coast Society of Orthodontists Bulletin Summer 2018 - 31
acific Coast Society of Orthodontists Bulletin Summer 2018 - 32
acific Coast Society of Orthodontists Bulletin Summer 2018 - 33
acific Coast Society of Orthodontists Bulletin Summer 2018 - 34
acific Coast Society of Orthodontists Bulletin Summer 2018 - 35
acific Coast Society of Orthodontists Bulletin Summer 2018 - 36
acific Coast Society of Orthodontists Bulletin Summer 2018 - 37
acific Coast Society of Orthodontists Bulletin Summer 2018 - 38
acific Coast Society of Orthodontists Bulletin Summer 2018 - 39
acific Coast Society of Orthodontists Bulletin Summer 2018 - 40
acific Coast Society of Orthodontists Bulletin Summer 2018 - 41
acific Coast Society of Orthodontists Bulletin Summer 2018 - 42
acific Coast Society of Orthodontists Bulletin Summer 2018 - 43
acific Coast Society of Orthodontists Bulletin Summer 2018 - 44
acific Coast Society of Orthodontists Bulletin Summer 2018 - 45
acific Coast Society of Orthodontists Bulletin Summer 2018 - 46
acific Coast Society of Orthodontists Bulletin Summer 2018 - 47
acific Coast Society of Orthodontists Bulletin Summer 2018 - 48
acific Coast Society of Orthodontists Bulletin Summer 2018 - 49
acific Coast Society of Orthodontists Bulletin Summer 2018 - 50
acific Coast Society of Orthodontists Bulletin Summer 2018 - 51
acific Coast Society of Orthodontists Bulletin Summer 2018 - 52
acific Coast Society of Orthodontists Bulletin Summer 2018 - 53
acific Coast Society of Orthodontists Bulletin Summer 2018 - 54
acific Coast Society of Orthodontists Bulletin Summer 2018 - 55
acific Coast Society of Orthodontists Bulletin Summer 2018 - 56
acific Coast Society of Orthodontists Bulletin Summer 2018 - 57
acific Coast Society of Orthodontists Bulletin Summer 2018 - 58
acific Coast Society of Orthodontists Bulletin Summer 2018 - 59
acific Coast Society of Orthodontists Bulletin Summer 2018 - 60
acific Coast Society of Orthodontists Bulletin Summer 2018 - 61
acific Coast Society of Orthodontists Bulletin Summer 2018 - 62
acific Coast Society of Orthodontists Bulletin Summer 2018 - 63
acific Coast Society of Orthodontists Bulletin Summer 2018 - 64
acific Coast Society of Orthodontists Bulletin Summer 2018 - 65
acific Coast Society of Orthodontists Bulletin Summer 2018 - 66
acific Coast Society of Orthodontists Bulletin Summer 2018 - 67
https://www.nxtbook.com/allen/pcso/bulletin_summer2023
https://www.nxtbook.com/allen/pcso/95-2
https://www.nxtbook.com/allen/pcso/95-1
https://www.nxtbook.com/allen/pcso/94-4
http://www.brightcopy.net/allen/pcso/94-03
http://www.brightcopy.net/allen/pcso/94-02
http://www.brightcopy.net/allen/pcso/93-3
http://www.brightcopy.net/allen/pcso/93-2
http://www.brightcopy.net/allen/pcso/93-1
http://www.brightcopy.net/allen/pcso/92-3
http://www.brightcopy.net/allen/pcso/92-2
http://www.brightcopy.net/allen/pcso/92-1
http://www.brightcopy.net/allen/pcso/91-4
http://www.brightcopy.net/allen/pcso/91-3
http://www.brightcopy.net/allen/pcso/91-2
http://www.brightcopy.net/allen/pcso/91-1
http://www.brightcopy.net/allen/pcso/90-04
http://www.brightcopy.net/allen/pcso/90-3
http://www.brightcopy.net/allen/pcso/90-2
http://www.brightcopy.net/allen/pcso/90-1
http://www.brightcopy.net/allen/pcso/83-4
http://www.brightcopy.net/allen/pcso/89-3
http://www.brightcopy.net/allen/pcso/89-2
http://www.brightcopy.net/allen/pcso/89-1
http://www.brightcopy.net/allen/pcso/88-4
http://www.brightcopy.net/allen/pcso/88-3
http://www.brightcopy.net/allen/pcso/88-2
http://www.brightcopy.net/allen/pcso/88-1
http://www.brightcopy.net/allen/pcso/87-4
https://www.nxtbook.com/allen/pcso/87-03
https://www.nxtbook.com/allen/pcso/87-2
https://www.nxtbook.com/allen/pcso/87-1
https://www.nxtbook.com/allen/pcso/86-4
https://www.nxtbook.com/allen/pcso/86-3
https://www.nxtbook.com/allen/pcso/86-2
https://www.nxtbook.com/allen/pcso/86-1
https://www.nxtbook.com/allen/pcso/85-4
https://www.nxtbook.com/allen/pcso/85-3
https://www.nxtbook.com/allen/pcso/85-2
https://www.nxtbook.com/allen/pcso/85-1
https://www.nxtbook.com/allen/pcso/preview-program-2013
https://www.nxtbook.com/allen/pcso/84-4
https://www.nxtbook.com/allen/pcso/84-2
https://www.nxtbookmedia.com