Skip to main content
2024 AAPD Annual Meeting Main banner
Itinerary Planner Sponsored by Cheng Crowns
Information & Legend
This session is not in your schedule.
This session is in your schedule. Click again to remove it.
Presentation Icons
Ticket Required
Ticket Required
Sold Out
Sold Out
Recorded Session
Recorded Session
Back
Rate ePoster
View ePoster

Growth & Development

544 - Gender’s Effect on the accuracy between Demirjian's and Williem's Methods

Saturday, May 25, 2024
2:00 PM – 2:10 PM EST
Location: Exhibit Hall (back left corner of the hall, space 137)

    Presenting Author(s)

  • Kuo-Ting Sun, PhD

    Pediatric Dentistry Director
    Department of Pediatric Dentistry, China Medical University Hospital, Taichung, Taiwan, Republic of China
    China Medical University
    Taichung City, Taichung, Taiwan (Republic of China)

    • Co-Author(s)

  • CC

    Che-Yen Chiang, Pediatric Dentist Specialist

    Department of Pediatric Dentistry, China Medical University Hospital, Taiwan

    • Program Director(s)

  • Kuo-Ting Sun, PhD

    Pediatric Dentistry Director
    Department of Pediatric Dentistry, China Medical University Hospital, Taichung, Taiwan, Republic of China
    China Medical University
    Taichung City, Taichung, Taiwan (Republic of China)

Abstract:



Introduction: Estimating age is crucial in forensic medicine and clinical dentistry. Demirjian's method is the most commonly used method, Williem's method has modified Demirjian's method. Demirjian's method and Williem's method are utilized to investigate the correlation between  dental age and chronological age among different genders and age groups.



Methods: There were 119 boys and 113 girls, aged 5 to 12 years old, their panoramic film were analysed. Based on the development of permanent teeth in the images, dental age (DA) was calculated using Demirjian's method and Williem's method. The patients were then divided into different groups based on age range (5-9 years old, early mixed dentition period, vs. 10-12 years old, late mixed dentition period). Statistical analysis was conducted using SPSS software.



Results: Williem's method did not show a significant difference in average dental age and chronological age among females and children in the late mixed dentition period. However, when examining the correlation between estimated age and chronological age, higher correlation was observed in males when grouping by gender, and higher correlation was observed in the early mixed dentition period (5-9 years old) when grouping by age. Additionally, the method was found not applicable to children in the late mixed dentition period (10-12 years old).



Conclusion: Besides genetic and racial differences, both gender and age are potential factors could influence the accuracy of age estimation for Demirjian's and Williem's method.

Keywords：Age estimation, panoramic X-ray image, Demirjian’s method, Williem’s method, gender, dental age

Identify Supporting Agency and Grant Number: