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A proportional correlation index for space analysis in mixed dentition derived from an italian population sample
 

Type:  Articles

Pubblication date:  06/2012

Authors:  M. Portelli, G. Matarese, A. Militi, G. Cordasco, A. Lucchese*

Language:  English

Institution:  Dept of Orthodontics and Paediatric Dentistry, Dental School, University of Messina, Messina,Italy *School of Dentistry, University of Ferrara, Ferrara Italy

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Bolton ratios; Tooth size; Tooth size discrepancy.

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Email:  [email protected]


Title:  A proportional correlation index for space analysis in mixed dentition derived from an italian population sample

Abstract:  Aim The aim of this study was to establish a specific proportional correlation method for space analysis in mixed dentition applicable to the Italian population. Material and Methods A retrospective analysis was performed on 300 plaster models taken from Italiansubjects, 156 females and 144 males, aged between 12 and 25 years, visited at the Department of Orthodontic and Paediatric Dentistry of the University of Messina. Results The variance analysis (ANOVA) showed a high correlation between the dimension of the mesio-distal diameters of the four mandibular incisor and those of the upper canine and premolars. The correlation coefficient showed the existence of a directly proportional, positive intra-dependence between the two groups. Discussion The correlation tables used in the present study appear to be much more accurate if applied to groups of patients with similar ethnic backgrounds, thus explaining the differences between the various prediction indexes found in previous publications. Conclusion This study highlights the need to develop specific values to fit the features of the different ethnic groups.

 
 
 
 
 
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