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Indian Journal of Contemporary Dentistry
Year : 2017, Volume : 5, Issue : 1
First page : ( 23) Last page : ( 29)
Print ISSN : 2320-5806. Online ISSN : 2320-5962.
Article DOI : 10.5958/2320-5962.2017.00005.5

Correlation between Dental Maturity Index and Skeletal Maturation Index with that of Chronological Age-A Cross Sectional Study in Western U.P. Population

Kamarthi Nagaraju1, Prakash Ravi SM2, Malik Sangeeta3, Goel Swati3, Sharma Jyoti4

1Professor, Department of Oral Medicine and Radiology, Subharti Dental College, Meerut, U.P.

2Head of Department, Department of Oral Medicine and Radiology, Subharti Dental College, Meerut, U.P.

3Readers, Department of Oral Medicine and Radiology, Subharti Dental College, Meerut, U.P.

4Post Graduate, Department of Oral Medicine and Radiology, Subharti Dental College, Meerut, U.P.

Online published on 15 February, 2017.

Abstract

Aim

The study is to evaluate skeletal maturity using lateral cephalogram for cervical vertebrae and panoramic radiograph for dental maturity to find correlation between chronologic age, tooth calcification stage and Cervical Vertebrae Maturation (CVM) stage and to estimate the age group by the tooth calcification stage and CVM stage.

Objective

To assess whether skeletal and dental maturity parameters can be used to predict chronological age.

Materials and method

The sample consisted of 101 randomly selected subjects between the age groups of 8 to 14 years. Of the 101 subjects, 59 were male and 42 were female. Dental age was determined based on the calcification of the mandibular teeth except for third molars (method suggested by Demirjian et al.) and skeletal maturation age was determined by cervical vertebral morphologic changes (suggested by Baccetti et al.). Dental age and skeletal age were assessed on OPG and lateral cephalometric radiographs respectively. Chronological age was obtained through birth certificates. Correlations between bone maturation and teeth calcification were shown by Spearman's correlation. The relevant associations were investigated by ordinal logistic regression models.

Results

After analysing the results and observations following conclusions were drawn:

  1. A statistically significant difference was observed in between dental maturity index and chronological age in the Western U.P. population in males and females and in age groups 9 to 10years, 13–14 years and in overall children.

  2. The Dental maturity index with chronological age in Western U.P population overestimated in the age groups of 8-9yrs, 10-11yrs, 11-12yrs and 12-13yrs.

  3. A high correlation coefficient was observed between Dental age and skeletal age in age group 11–12 years.

  4. The correlation of chronological and skeletal age was more significant in females than in males and Dental age with chronologic age and skeletal age was significantly correlating in both males and females.

  5. A high correlation coefficient was observed in between Dental, skeletal and chronological age.

  6. The most frequent cervical vertebrae stages in females were stage 1 and stage 3 in age ranges of 8 to 14years.

  7. A wide variation in chronologic age for different maturity levels suggests that chronologic age is a poor indicator of maturity.

Skeletal maturity indicators are more valid than the chronological age for growth status of the individual

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Keywords

Demirjian, Baccetti, Dental age, skeletal age, chronological age.

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