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. 2017:2017:8683970.
doi: 10.1155/2017/8683970. Epub 2017 Feb 26.

Dental Age and Tooth Development in Orthodontic Patients with Agenesis of Permanent Teeth

Jozo Badrov  1 , Tomislav Lauc  2 , Enita Nakaš  3 , Ivan Galić  1
Affiliations

Dental Age and Tooth Development in Orthodontic Patients with Agenesis of Permanent Teeth

Jozo Badrov et al. Biomed Res Int. 2017.

Abstract

Objective. To compare the development of permanent teeth in a group of children with the congenitally missing permanent teeth (CMPT) and corresponding nonaffected group. Methods. The formation stages of all developing permanent teeth were determined on 345 panoramic radiographs (OPTs) by the method of Haavikko (1970), and dental age was calculated. The paired samples t-test was used to compare the differences between dental age (DA) and chronological age (CA) in those with CMPT and those not affected. Spearman test was used to evaluate the correlation between DA-CA and the number of missing teeth. The Wilcoxon signed rank test was used to compare the development of the teeth adjacent to the place of the agenesis with matched pair in corresponding nonaffected group. Results. Dental age was significantly delayed in CMPT children compared to the nonaffected group (p < 0.001). The mean differences were -0.57 ± 1.20 years and -0.61 ± 1.23 years in males and females, without difference between sexes (p = 0.763). The number of missing teeth affected the delay only in females (p = 0.024). Only mesial teeth in females were significantly delayed in development when compared to the nonaffected group (p = 0.007). Conclusion. Our findings show that the development of the permanent teeth is delayed when compared to the nonaffected group of the same sex and age.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Figure 1
Figure 1
Scatterplot of difference between dental and chronological age (DA-CA) and chronological age (age) for the congenitally missing permanent teeth (CMPT) group and nonaffected group (control group).
Figure 2
Figure 2
Scatterplot of difference between dental and chronological age (DA-CA) and a number of the congenitally missing permanent teeth in males and females.
Figure 3
Figure 3
Distribution of stage differences of adjacent teeth in males and females.
See this image and copyright information in PMC

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