MIXED DENTITION
ANALYSIS
INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com

www.indi...
MOYERS MIXED DENTITION
ANALYSIS


The purpose of a mixed dentition analysis is to
evalute the amount of space available i...




The moyers analysis predicts the combined
mesio-distal width of 3,4,5 based on the sum of
the widths of the four low...




Based on the mesio-distal width of four
mandibular incisors, the expected width of the
canines, first and second pre...


Total mandibular
incisor width
19.5
20.0
20.5
21.0
21.5
22.0
22.5
23.0
23.5
24.0

width of 345
20.6, 20.1
20.9,20.4
21....
HUCKABA’S ANALYSIS





Here both study cast and radiographs are
used for determining the width of
unerupted tooth.
Pri...



YI= X1 xY2/X2
y1= width of unerupted tooth whose measurement is to
be determined






.

y2= width of unerupted t...




Accuracy of this method of determining
the width of the unerupted tooth is fair to
good, depending upon the quality ...
HIXON AND OLD FATHER’S


The mesio-distal width of mandibular
central and lateral incisor is obtained from
the casts. Det...


The estimated sum total width of the
cuspids and bicuspids of that particular
side can be obtained from the chart. Ever...













measured values

estimated tooth size

46
47
48
49
50
51
52
53
54
55

18.4
18.7
19.0
19.4
19.7
20....
Nance careys analysis
This analysis is similar to arch perimeter analysis
of the permanent dentition.
PROCEDURE
measure th...


The total mesio-distal width of all the teeth in
each quadarent will indicate space required to
accommodate the permane...
Thank you
For more details please visit
www.indiandentalacademy.com

www.indiandentalacademy.com
Upcoming SlideShare
Loading in …5
×

Mixed dentition analysis /certified fixed orthodontic courses by Indian dental academy

1,600 views

Published on


The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

0 Comments
3 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,600
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
39
Comments
0
Likes
3
Embeds 0
No embeds

No notes for slide

Mixed dentition analysis /certified fixed orthodontic courses by Indian dental academy

  1. 1. MIXED DENTITION ANALYSIS INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. MOYERS MIXED DENTITION ANALYSIS  The purpose of a mixed dentition analysis is to evalute the amount of space available in the arch for the erupting permanent canines and premolars. In this analysis the size of the unerupted permanent cuspids and premolars are predicted from the knowledge of the sizes of certain permanent teeth that are already erupted in the mouth. www.indiandentalacademy.com
  3. 3.   The moyers analysis predicts the combined mesio-distal width of 3,4,5 based on the sum of the widths of the four lower permanent incisors. the mesio-distal width of the four lower incisor are measured and summed up.the amount of space available for the 3,4and 5 after incisor alignment is determined by measuring the distance between the distal surface of lateral incisor and the mesial surface of first permanent molar. www.indiandentalacademy.com
  4. 4.   Based on the mesio-distal width of four mandibular incisors, the expected width of the canines, first and second premolars are predicted by referring the probability chart. While doing so,the 75%level of probability is considered reliable. The predicted tooth size of 3,4,5 is compared with arch length available for them so as to determine the discrepancy. If the predicted value is greater than the available arch length,crowding of teeth can be expected www.indiandentalacademy.com
  5. 5.  Total mandibular incisor width 19.5 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 width of 345 20.6, 20.1 20.9,20.4 21.2,20.7 21.3,21.0 21.8,21.3 22.0, 21.6 22.3,21.9 22.6,22.2 22.9, 22.5 23.1, 22.8 www.indiandentalacademy.com
  6. 6. HUCKABA’S ANALYSIS    Here both study cast and radiographs are used for determining the width of unerupted tooth. Principle with any type of radiograph, it is necessary to compensate for enlargement of the radiographic image. This can be done by measuring an object that can be seen both in radiograph and on the cast. www.indiandentalacademy.com
  7. 7.   YI= X1 xY2/X2 y1= width of unerupted tooth whose measurement is to be determined    . y2= width of unerupted tooth on radiograph. X1=width of a tooth that has erupted measured on the cast. X2=Width of a tooth that has erupted,measured on the radiograph www.indiandentalacademy.com
  8. 8.   Accuracy of this method of determining the width of the unerupted tooth is fair to good, depending upon the quality of the radiographs and their position in the arch this technique can be used in maxillary and mandibular arches for all ethnic groups. www.indiandentalacademy.com
  9. 9. HIXON AND OLD FATHER’S  The mesio-distal width of mandibular central and lateral incisor is obtained from the casts. Determine the width of the premolars from the intraoral periapical radiographs made using long cone technique. Sum up the width of central and lateral incisor along with the width of unerupted premolars of that particular side. www.indiandentalacademy.com
  10. 10.  The estimated sum total width of the cuspids and bicuspids of that particular side can be obtained from the chart. Every measured sum width of incisor and bicuspids has a corresponding sum width of the cuspids and bicuspids in the chart. www.indiandentalacademy.com
  11. 11.            measured values estimated tooth size 46 47 48 49 50 51 52 53 54 55 18.4 18.7 19.0 19.4 19.7 20.0 20.3 20.7 21.0 21.3 56 21.6 www.indiandentalacademy.com
  12. 12. Nance careys analysis This analysis is similar to arch perimeter analysis of the permanent dentition. PROCEDURE measure the mesio-distal width of the erupted permanent teeth. measure the width of each unerupted tooth, cuspids and bicuspids (3,4,5) from the intra-oral periapical radiographs. www.indiandentalacademy.com
  13. 13.  The total mesio-distal width of all the teeth in each quadarent will indicate space required to accommodate the permanent tooth .   using brass wire measure the arch perimeter. compare the space required and space available to arrive at the arch length discrepancy. www.indiandentalacademy.com
  14. 14. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

×