A retrospective comparison of dental and skeletal ages between African American, Caucasian, and Hispanic subjects.

Malik, Shaima; Skrobola, Mike; Obamiyi, Samuel; Feng, Changyong; Wang, Zhihui; Rossouw, P Emile; Michelogiannakis, Dimitrios

Malik, Shaima; Skrobola, Mike; Obamiyi, Samuel; Feng, Changyong; Wang, Zhihui; Rossouw, P Emile; Michelogiannakis, Dimitrios.

Afiliação

Malik S; Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, New York, USA.
Skrobola M; Orthodontist in Private Practice, Middletown, New York, USA.
Obamiyi S; Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, New York, USA.
Feng C; Department of Biostatistics and Computational Biology, University of Rochester, New York, USA.
Wang Z; Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, New York, USA.
Rossouw PE; Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, New York, USA.
Michelogiannakis D; Department of Orthodontics and Dentofacial Orthopedics, Eastman Institute for Oral Health, University of Rochester, New York, USA.

J Orthod Sci ; 9: 11, 2020.

Article em En | MEDLINE | ID: mdl-33354537

ABSTRACT

ABSTRACT

OBJECTIVE:

To compare dental and skeletal ages among African American (AA), Caucasian (C) and Hispanic (H) subjects (chronological ages 9 to 15-years). MATERIAL AND

METHODS:

A total of 168 subjects (9 to 15 years old) were equally divided into AA, C, and H groups, with an equal number of males and females. Each group was divided equally into 7 chronological age-groups, ranging from 9 to 15 years. Dental age was determined from panoramic radiographs as primary, early mixed, late mixed, or permanent dentition (scored as 1-4). Skeletal age was calculated from hand-wrist radiographs using Fishman's Skeletal Maturation Index (SMI 1-11). One-way analysis of variance and Tukey's test were used to compare skeletal and dental ages among AA, C and H subjects; and AA, C and H subjects in each chronological age-group. The two-sample t-test was used to compare SMI and dental age among females and males.

RESULTS:

Skeletal and dental age were not significantly different between AA, C and H subjects. Mean SMI was higher in females than males; and there were no significant gender differences regarding dental age. Mean SMI and dental age were significantly different among AA, C and H subjects in the 12-year-old and 11-year-old age groups, respectively.