ABSTRACT
External ear morphology has been used by physical anthropologists and forensic experts in the identification of individuality. A thorough knowledge of ear morphology is important for facial reconstruction and other surgical procedures carried out for ear replacement. In line with this, this study was carried out to determine the range of variations seen in the anthropometry of the ear among Chukwuemeka Odumegwu Ojukwu University (COOO) students between the ages of 16-35 years. Two hundred and eighty-five (285) subjects comprising of one hundred and fifty-one (151) males and one hundred and thirty-four (134) females were selected using convenient sampling technique. The ages of the subjects ranged from 15years to 31 years. The height and width of the external ear of the subjects were measured using sliding vernier caliper (12.5cm with an accuracy of 0.01cm). The obtained data were analyzed using SPSS version 20.0. The results of this study showed that mean age of male and female subjects was 24.38 ± 4.28 years and 24.60 ± 4.31 years, respectively. The overall mean age of the subjects was 24.48 ± 4.29 years. The mean height of the right ears of the male and female subjects were 5.59 ± 0.30cm and 5.52 ± 0.27cm respectively. The total mean height of the right ear of all the subjects were 5.55 ± 0.29cm. The mean height of the left ears of the male and female subjects were 5.62 ± 0.30cm 5.52 ± 0.33cm respectively. The total mean height of the left ear of all the subjects was 5.57 ± 0.32cm. The mean width of the right ears of the male and female subjects were 2.65 ± 0.28cm and 2.56 ± 0.25cm respectively. The total mean width of the right ear of all the subjects was 2.61 ± 0.27cm. The mean width of the left ears of the male and female subjects were 2.65 ± 0.29cm and 2.65 ± 0.23cm respectively. The total mean width of the right ear of all the subjects was 2.65 ± 0.26cm. The result of the paired sample t-test showed no significant difference between the right ear height and left ear height of all the subjects (P>0.05) but a significant difference between the right ear width and left ear width of all the subjects (P<0.05). The result of the paired sample t-test also showed no significant difference between the height of the right ear of male and female subjects at (p>0.05). It also showed a significant difference between the width of the right ear of males and females at (p<0.05). The result of the paired sample t-test also showed the height of the left ear of males showed a significant difference with the height of the left ear of their female counterparts at (p<0.05) but no significant difference between the width of the left ear of male and female subjects at (p>0.05). This study has also established the values of the right and left ears of the studied subjects which are vital in aesthetic surgery and individuality.
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