University of Khartoum

Assessment of Different Measurement Methods in Predicting the Occlusal Vertical Dimension among Different Populations Sudanese and Yemeni

Assessment of Different Measurement Methods in Predicting the Occlusal Vertical Dimension among Different Populations Sudanese and Yemeni

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Title: Assessment of Different Measurement Methods in Predicting the Occlusal Vertical Dimension among Different Populations Sudanese and Yemeni
Author: Alhajj, Mohammed Nasser Ahmed
Abstract: Background: Optimum measurement of the vertical dimension of occlusion is critical in complete denture construction. Failure to obtain this component will result in failure of the complete denture. This study aimed to assess different measurement methods used in predicting the occlusal vertical dimension in a sample of Sudanese and Yemeni populations. Materials and Methods:This study was a cross-sectional comparative analytical study. Two hundred and ninety dental students (145 students for each population) from both genders were recruited by systematic sampling from the Faculty of Dentistry at Khartoum University - Sudan and Faculty of Dentistry at Thamar University - Yemen. Four distances were measured on the face (distance from distal canthus of the eye to the auditory meatus of the ear, distance from tip of the nose to the zygomatic point, distance from tip of the nose to tip of the chin “reference distance”, and distance from septum of the nose to inferior border of chin “reference distance”).Two measurements were recorded from the length of the index and little fingers. All measurements were done using digital caliper. The correlations and differences between measurements were analyzed using SPSS program with P-value <0.05. Results: In the Sudanese population, results of the study revealed significant differences between males and females with regard to study variables. In male subjects, a significant correlation (r = 0.408, P = 0.014) was found between the distance from the eye to the ear with that from the septum of the nose to the inferior border of chin and between the distance from tip of the nose to tip of the chin with that from tip of the nose to the zygomatic point (r = 0.730, P = 0.001). However, no significant correlations were found between the other measurements. Regarding female subjects, the correlation was found between the distance from the tip of the nose to the tip of the chin with that from tip of the nose to the zygomatic point (r = 0.524, P = 0.001) and between the index finger length with the distance from the tip of the nose to the tip of the chin (r = 0.256, P = 0.007) while no significant correlations were observed between the other measurements. In Yemeni population, the differences between males and females were significant in all measurements except the distance between the septum of the nose to the inferior border of chin. Significant correlations were found in both genders between the distance from the eye to the ear with the septum of the nose to the inferior border of chin (r = 0.244, P = 0.026 for males; r = 0.327, P = 0.010 for females) and between the index finger length with septum of the nose to inferior border of chin (r = 0.269, P = 0.013 for males; r = 0.360, P = 0.004 for females). The correlation between distance from tip of the nose to tip of the chin with that from tip of the nose to the zygomatic point was positive with no significant difference in female subjects only. No other significant correlations were observed. In comparison between the two populations, most of the measured distances were in favor of Sudanese subjects. Conclusion: It can be concluded that the distance form eye to ear, from tip of the nose to the zygomatic point, and the length of the index finger could be used as alternative methods in predicting the occlusal vertical dimension accordingly.
Description: 127 Pages
URI: http://khartoumspace.uofk.edu/123456789/22821


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