Sex prediction using palatal surface of maxillary permanent lateral incisors
Sex determination is a crucial aspect of forensic anthropology and human identification, aiding in narrowing down potential identities in forensic investigations. This study aimed to assess the potential of using the palatal surface area (PSA) and mesiodistal (MD) dimension of the maxillary later...
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| Main Author: | |
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| Format: | Monograph |
| Language: | en |
| Published: |
Universiti Sains Malaysia
2025
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| Subjects: | |
| Online Access: | http://eprints.usm.my/63077/1/Ethel%20Lim%20Yi-E.pdf http://eprints.usm.my/63077/ |
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| Summary: | Sex determination is a crucial aspect of forensic anthropology and human
identification, aiding in narrowing down potential identities in forensic investigations.
This study aimed to assess the potential of using the palatal surface area (PSA) and
mesiodistal (MD) dimension of the maxillary lateral incisor for sex prediction within
the Malay population (Malaysian). A total of 100 dental casts (50 males and 50 females)
were analysed using 3D imaging software (3-Matic-Mimics, Materialise, Belgium), and
statistical analyses were conducted to determine the presence of sexual dimorphism and
the predictive accuracy of these dental features. The results indicated that the PSA of
the maxillary lateral incisor exhibited statistically significant sexual dimorphism, with
males having a larger mean PSA than females (p < 0.05). However, the MD dimension
did not show a significant difference between sexes (p > 0.05). Logistic regression
analysis identified PSA as a significant predictor for sex classification, but the overall
classification accuracy of the model was 61%, with 60.0% accuracy for males and 62.0%
for females. The area under the receiver operating characteristic (ROC) curve (0.39)
further indicated a poor discriminative ability of the model. These findings suggest that
the PSA of the maxillary lateral incisor only moderately predict sex, thus has limited
application in forensic management. |
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