Objectives The present study aimed at determining the tip and torque values of the teeth of Saudi adults with normal occlusion to develop orthodontic bracket prescription. In addition, we proposed to compare the results with published data of varied geographical distribution. Materials and Methods The study sample consisted of 60 upper and lower study models of Saudi adults (30 males and 30 females) with normal occlusion and a balanced facial profile. Evaluated by experts, the torque and tip of teeth were measured using a torque angulation device. The collected data was analyzed using SPSS (IBM SPSS Inc., version 20, Chicago, IL, USA). The mean, and standard deviation were obtained for each measurement. Paired t -test, Independent t -test and student t -test were used for the comparison at a significant level of (p ≤ 0.05). Result The results of torque and tip of teeth for the Saudi adult population showed no significant differences between the right and the left quadrants of the analyzed study sample. In general, there was no significant observed difference between male and female samples, accordingly, the Saudi tip and torque data were combined. However, the comparisons of the combined Saudi data to the published data showed significant differences (p ≤ 0.05). Conclusion Statistically Significant differences were found between the combined Saudi data when compared to North American, Italian, African, Japanese, and Indian data. We inferred, that racial differences should be considered when presenting bracket prescriptions.
Background Human papilloma virus (HPV) infection forms a major etiological factor for oropharyngeal cancer (OPC), which has exhibited increased global incidence. Aim To compare the knowledge regarding HPV, its association with OPC, and HPV vaccine among students from different countries, years of the undergraduate program, and gender. Methods The current multinational cross-sectional study was conducted in 886 undergraduate dental students from Egypt, India, Pakistan, Saudi Arabia, UAE, and Sudan through Google survey forms from July 2021 to September 2021. The survey form comprised 27 items divided into four sections. The answers to the questionnaire were compared among students from different countries, different years of the undergraduate program, and males and females. Chi-square test was used to evaluate the correlation between the demographic characteristics of students and their knowledge regarding HPV and OPC. Results Females exhibited a better knowledge regarding knowledge and perception on HPV vaccine, whereas males exhibited a better knowledge regarding HPV and its correlation with OPC, and these differences were statistically significant (P < 0.05). The third- and fourth-year undergraduate students displayed a higher awareness of OPC and its connection with HPV than other year students, and this variance was found to be statistically significant (P < 0.001). Third-year and internship students exhibited a more positive attitude and comfort regarding the vaccine and discussing the same with patients than the other educational-level students. Students from India exhibited better knowledge about HPV and its association with OPC than the students from other countries, and this difference was statistically significant (P < 0.001). Conclusion Disparities in knowledge regarding HPV-related oral cancer have been detected among the female and male participants among different nations. From the entire study population, Indian students exhibited better knowledge regarding HPV. Females from all the nations exhibited a more positive attitude and comfort regarding the vaccine and discussing the same with patients than males. The results of this necessitate intervention measures including training workshops and awareness campaigns. Improving their knowledge regarding the same may increase their awareness, resulting in better patient care.
Background The racial and ethnic disparities in tooth morphology and alignment indicate the need for different orthodontic prescriptions. Purpose This study aimed at utilizing the 3D digital models to measure the teeth prominence of Saudi adults and compare the results to previously published data. Materials and methods The sample included 60 sets of 3D digital dental models of subjects who presented with non-orthodontic normal occlusion and balanced profile. Rhinoceros™ 3D modeling software was used to mark the midpoint of the clinical crown (LA) and the embrasure line and then to measure the prominence of the teeth. The collected data was analyzed using SPSS (IBM SPSS Inc., version 20, Chicago, IL, USA). The mean and SD scores were obtained for each measurement. Independent t -test, paired t -test, and student t -test were used for the comparison at a significant level of P ≤ 0.05. Result Comparison between the right and the left sides, and between the male and female showed no significant differences, and hence the result data were combined. However, further comparison with the published data of the North American whites, Japanese, Indian, African and Italian showed significant differences in most of the teeth. Conclusion Racial differences influence the teeth prominence values that should be considered in presenting orthodontic bracket prescriptions. More research in this field is needed.
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