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Year : 2014  |  Volume : 5  |  Issue : 3  |  Page : 371-376

Dental age estimation using Willems method: A digital orthopantomographic study

1 Department of Oral Medicine and Radiology, GITAM Dental College and Hospital, Rushikonda, Visakhapatnam, India
2 Department of Periodontics, Kalinga Institute of Dental Sciences, Patia, Bhubaneswar, Odisha, India
3 Departments of Orthodontics and Dentofacial Orthopaedics, Indira Gandhi Institute of Dental Sciences, Ernakulam, Kerala, India
4 Department of Dentistry, MGIMS, Sevagram, Maharashtra, India
5 Dental College, Azamgarh, Uttar Pradesh, India
6 Department of Oral Medicine and Radiology, Panineeya Institute of Dental Sciences, Dilshuknagar, Hyderabad, India

Correspondence Address:
Rezwana Begum Mohammed
Department of Oral Medicine and Radiology, GITAM Dental College and Hospital, Rushikonda, Visakhapatnam 530 045, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0976-237X.137954

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In recent years, age estimation has become increasingly important in living people for a variety of reasons, including identifying criminal and legal responsibility, and for many other social events such as a birth certificate, marriage, beginning a job, joining the army, and retirement. Objectives: The aim of this study was to assess the developmental stages of left seven mandibular teeth for estimation of dental age (DA) in different age groups and to evaluate the possible correlation between DA and chronological age (CA) in South Indian population using Willems method. Materials and Methods: Digital Orthopantomogram of 332 subjects (166 males, 166 females) who fit the study and the criteria were obtained. Assessment of mandibular teeth (from central incisor to the second molar on left quadrant) development was undertaken and DA was assessed using Willems method. Results and Discussion: The present study showed a significant correlation between DA and CA in both males (r = 0.71 and females (r = 0.88). The overall mean difference between the estimated DA and CA for males was 0.69 ± 2.14 years (P < 0.001) while for females, it was 0.08 ± 1.34 years (P > 0.05). Willems method underestimated the mean age of males by 0.69 years and females by 0.08 years and showed that females mature earlier than males in selected population. The mean difference between DA and CA according to Willems method was 0.39 years and is statistically significant (P < 0.05). Conclusion: This study showed significant relation between DA and CA. Thus, digital radiographic assessment of mandibular teeth development can be used to generate mean DA using Willems method and also the estimated age range for an individual of unknown CA.

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