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. 2014 May;4(2):133-8.
doi: 10.4103/2231-0762.139847.

Mixed dentition analysis - Applicability of two non-radiographic methods for Chennai school children

Naveen Kumar Kommineni  1 , Chowdavaram Venkat Subba Reddy  2 , Nelapati Sarath Chandra  2 , Dappili Swami Ranga Reddy  3 , Avula Kishore Kumar  2 , Maram Vinay Chand Reddy  1
Affiliations

Mixed dentition analysis - Applicability of two non-radiographic methods for Chennai school children

Naveen Kumar Kommineni et al. J Int Soc Prev Community Dent. 2014 May.

Abstract

Aim: To evaluate the applicability of the Tanaka and Johnston (1974) and Moyers (1988) methods in predicting the size of permanent canines and premolars in Chennai school children.

Materials and methods: 470 sets (127 female and 343 male) of cast models were included in the sample. Mesio-distal (m-d) widths of all teeth from left to right first molars were measured and compared with the predicted values derived from Tanaka and Johnston and Moyers methods.

Results: There was significant bilateral symmetry and sexual dimorphism in teeth sizes seen in both the sexes. Sum of the m-d diameter of permanent mandibular incisors can be used reliably to predict the sum of m-d diameters of unerupted canines and premolars.

Conclusions: Tanaka and Johnston's method cannot accurately predict the m-d widths. Moyers' prediction tables can be used to estimate the m-d widths of unerupted canines and premolars closer to 50% probability level.

Keywords: Mesio-distal width; mixed dentition analysis; probability tables.

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Conflict of interest statement

Conflict of Interest: None declared.

Figures

Graph 1
Graph 1
Graphic comparison of the predicted values of unerupted maxillary canine and premolars derived from Moyers’ prediction chart at various probability levels and the measured values of female subjects
Graph 2
Graph 2
Graphic comparison of the predicted values of unerupted maxillary canine and premolars derived from Moyers’ prediction chart at various probability levels and the measured values of male subjects
Graph 3
Graph 3
Graphic comparison of the predicted values of unerupted mandibular canine and premolars derived from Moyers’ prediction chart at various probability levels and the measured values of male subjects
Graph 4
Graph 4
Graphic comparison of the predicted values of unerupted mandibular canine and premolars derived from Moyers’ prediction chart at various probability levels and the measured values of female subjects
Graph 5
Graph 5
Graphic comparison of the predicted values of unerupted maxillary canine and premolars derived from Tanaka Johnston equation at various probability levels and the measured values of the whole sample
Graph 6
Graph 6
Graphic comparison of the predicted values of unerupted mandibular canine and premolars derived from Tanaka Johnston equation at various probability levels and the measured values of the whole sample
See this image and copyright information in PMC

References

    1. Nance HN. The limitation of orthodontic treatment. I. Mixed dentition diagnosis and treatment. Am J Orthod Oral Surg. 1947;33:177–223. - PubMed
    1. Tanaka MM, Johnston LE. The prediction of the size of unerupted canines and premolars in a contemporary orthodontic population. J Am Dent Assoc. 1974;88:798–801. - PubMed
    1. Moyers RE, editor. 4th ed. Chicago: Yearbook Medical Publishers; 1988. Hand Book of Orthodontics; pp. 235–40.
    1. Hixon EH, Oldfather RE. Estimation of the sizes of unerupted cuspid and bicuspid teeth. Angle Orthod. 1958;28:236–40.
    1. Staley RN, Kerber RE. A revision of the Hixon and Oldfather mixed-dentition prediction method. Am J Orthod. 1980;78:296–302. - PubMed