scholarly journals Brief communication: An analysis of dental development in Pleistocene Homo using skeletal growth and chronological age

2017 ◽  
Vol 163 (3) ◽  
pp. 531-541 ◽  
Author(s):  
Maja Šešelj
Keyword(s):  
Skeletal Growth ◽  
Chronological Age ◽  
Dental Development

Correlation of Dental Maturity with Skeletal Maturity from Radiographic Assessment

2012 ◽  
Vol 36 (3) ◽  
pp. 309-314 ◽  
Author(s):  
John M. Morris ◽  
Jae Hyun Park
Keyword(s):  
Skeletal Maturity ◽  
Skeletal Development ◽  
Skeletal Growth ◽  
Dental Development ◽  
Radiographic Assessment ◽  
Additional Radiation ◽  
Dental Radiographs ◽  
Radiographic Interpretation ◽  
The Relationship ◽  
Dental Maturity

There have been many attempts to correlate dental development with skeletal growth. The relationship is generally considered to be moderate at best. However, there is evidence that hand-wrist radiographic interpretation of remaining growth can be augmented by taking into account the developing dentition. In addition, the practicality of evaluating routine dental radiographs and avoiding additional radiation is advantageous. To this point, no system has been described to match apical development by Demirjian’s stages and compare it to skeletal development and remaining growth. This study reviewed articles pertinent to the relationship between developing teeth and skeletal maturity and remaining growth, and a system is proposed to give practitioners an additional assessment for growth and development.

Accuracy of Demirjian and Willems Methods for Age Estimation of Children from Northern Argentina

2019 ◽  
Author(s):  
Hugo Norberto Aragón
Keyword(s):  
Age Estimation ◽  
Dental Treatment ◽  
Chronological Age ◽  
Dental Development ◽  
X Rays ◽  
Statistical Accuracy ◽  
Radiographic Images ◽  
The Mean ◽  
Radiological Studies ◽  
Paired T Test

The dental development is widely used to estimate the chronological age; one method frequently used is that of Demirjian, applied in Franc-Canadian children, and the other is that of Willems, adapted from the first one to Belgian children. Demirjian uses scores according to the degree of calcification of the seven permanent mandible teeth of the left side; Willems adapts to years the scale of scores of Demirjian. Objective: To analyze the accuracy in determining the chronological age through the degree of dental calcification using the methods of Demirjian and of Willems in children from Tucumán, Argentina. Methods: 66 children (29 female and 37 male) who assisted to radiological studies previous to the dental treatment were selected. Panoramic X-rays were taken. Dental ages were calculated using the corresponding tables of the methods of Demirjian and Willems. Chronological ages were calculated between the date of birth and the date of the study. The statistical paired t-test was used. Results: Through the method of Demirjian the mean of the differences was 0.44 ± 0.96 for girls and 0.49 ± 1.02 for boys, being significant differences between both genders. The method of Willems was more accurate than that one of Demirjian (-0.08 ± 0.92 for girls and 0.19 ± 0.94 for boys), being no significant differences between the dental and the chronological ages. Conclusion: According to these results both methods could be used to estimate the chronological age through the observed dental calcification in radiographic images of children from northern Argentina. Nevertheless, greater statistical accuracy with the method of Willems would be reached for both genders.

scholarly journals Dental Age in Precocious and Delayed Puberty Periods

2021 ◽  
Author(s):  
Derya Tabakcilar ◽  
Ruveyde Bundak ◽  
Koray Gencay
Keyword(s):  
Precocious Puberty ◽  
Normal Development ◽  
Significant Degree ◽  
Chronological Age ◽  
Delayed Puberty ◽  
Dental Development ◽  
Dental Age ◽  
Somatic Development ◽  
The Difference ◽  
Demirjian Method

Abstract Objectives Precocious puberty indicates quick growth inception and delayed puberty indicates retardation in growth. This study aims to investigate whether dental development is synchronous with somatic development. Materials and Methods In this study, 62 girls and 34 boys with precocious puberty aged 5 to 9, 29 girls with delayed puberty aged 13 to 16, and 43 boys with delayed puberty aged 14 to 17; 169 children (91 girls and 78 boys) with normal development were compared about their dental ages through their panoramic radiographs by using the Demirjian method and skeletal ages from hand-wrist radiographs by using Greulich-Pyle atlas. Results The findings showed that, in all cases, the dental age values were higher than chronologic and skeletal age values to a statistically significant degree. In the precocious puberty group, the dental age values were higher than chronologic age values to a statistically significant degree. In the delayed puberty group, the difference determined between the chronological age and the dental age was not found to be statistically significant. Conclusion Given that the Demirjian method is inclined to make calculations that are higher than the chronological age, our findings suggest that the dental development was faster in the precocious puberty group and retarded in the delayed puberty group.

scholarly journals Dental age assessment on panoramic radiographs: Comparison between two generations of young Finnish subjects

2018 ◽  
Vol 47 (1) ◽  
pp. 311-324 ◽  
Author(s):  
Flavia A. Birchler ◽  
Stavros Kiliaridis ◽  
Christophe Combescure ◽  
Johanna Julku ◽  
Pertti M. Pirttiniemi ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Chronological Age ◽  
Dental Development ◽  
Healthy Children ◽  
Dental Age ◽  
Age Assessment ◽  
Dental Maturation ◽  
Panoramic Radiographs ◽  
Two Generations ◽  
Maxilla And Mandible

Objective To analyse the accuracy of a meta-analysis-based dental age assessment (DAA) method in Finnish paediatric patients and to compare the dental development between two generations of Finnish children. Methods Panoramic radiographs of Finnish Caucasian healthy children from two generations (early: born 1981–1984; subsequent: born 1996–2008) were analysed. All developing teeth on the left maxilla and mandible as well as the third permanent molars were analysed following Demirjian’s classification. For each patient, dental age was calculated and compared with chronological age. Dental maturation patterns between the two groups were compared. Results The study included 200 Finnish Caucasian healthy children from two generations (early: aged 7–13 years; subsequent: aged 6–15 years). In the early generation, DAA underestimated the chronological age by a mean of 3.15 years. The underestimation was only 0.11 years in patients < 10 years, but 3.86 years in patients ≥ 10 years. In the subsequent generation, the dental age was overestimated by a mean of 0.34 years; by 0.40 years in patients < 10 years and by 0.08 years in patients ≥ 10 years. Conclusions The present DAA method is applicable to current Finnish children. Differences in dental development between two generations of Finnish children were detected.

Trainable Children Can Learn Adjectives, Polars, and Prepositions!

1977 ◽  
Vol 8 (3) ◽  
pp. 181-187 ◽  
Author(s):  
Marlys Mitchell ◽  
Carolyn Evans ◽  
John Bernard
Keyword(s):  
Mentally Retarded ◽  
Chronological Age ◽  
Age Group ◽  
Achievement Gains ◽  
Active Involvement ◽  
Mentally Retarded Children ◽  
Locative Prepositions ◽  
Major Factors ◽  
Trainable Mentally Retarded

Twelve trainable mentally retarded children were given six weeks of instruction in the use of adjectives, polars, and locative prepositions. Specially prepared Language Master cards constituted the program. Posttests indicated that children in the older chronological age group earned significantly higher scores than those in the younger group. Children in the younger group made significant increases in scores, particularly in learning prepositions. A multisensory approach and active involvement in learning appeared to be major factors in achievement gains.

Object Transformations in the Play of Language-Impaired Children

1988 ◽  
Vol 53 (4) ◽  
pp. 459-466 ◽  
Author(s):  
Brenda Y. Terrell ◽  
Richard G. Schwartz
Keyword(s):  
Normal Subjects ◽  
Play Behavior ◽  
Chronological Age ◽  
Standard Group ◽  
Language Impaired ◽  
Normal Language ◽  
Mean Length Of Utterance ◽  
Impaired Children

The play behavior of 10 language-impaired children was observed. Their performances in play were compared to those of 10 normal-language children matched for chronological age as well as to those of 10 normal-language children matched for mean length of utterance. The children were observed as they played spontaneously with a standard group of toys and as they played with objects that required object transformations for successful play. The chronological age-matched normal subjects showed a trend toward performance of more object transformations in play than either the language-impaired or younger normal-language children. Additionally, although object transformations were observed in both segments, all children performed more object transformations with objects than with toys.

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