- 著者
- Mohd G Sghaireen Ahed Alkhatib Rayan Alswilem Jin Toriya Akiko Mizohata Mohammed Alrowili Santosh Patil Naoto Osuga Mohammad Khursheed Alam
- 出版者
- 硬組織再生生物学会
- 雑誌
- Journal of Hard Tissue Biology (ISSN:13417649)
- 巻号頁・発行日
- vol.26, no.3, pp.293-296, 2017-07-01 (Released:2017-07-11)
- 参考文献数
- 28
The objectives are to investigate the association between dental caries and H. pylori, the association between dental caries and smoking among Saudi students, and to investigate the association between smoking and H. pylori among students with dental caries. The present cross sectional study included 120 male students from Aljouf University. Participating students were clinically examined for dental caries. Urine samples were tested for cotinine and stool samples were tested for H. pylori. Both cotinine and H. pylori was tested using strips especially prepared based on antigen-antibody reaction (COT, Innovacon Inc., USA, Helicobacter antigen Quick, GA Inc, Germany). Statistical analysis was done using Chi-Square test. The mean age of study participants was 22.37±1.50 years. The mean of teeth with caries was 9.57±4.68. There were 93 (77.5%) students positive for H. pylori, and 100 (83.3%) positive for cotinine. There was a significant relationship between cotinine and caries (P=0.000), and H. pylori and dental caries (P=0.000). The co-existence of H. pylori and cotinine was also significant among cases with caries (P=0.000). The present study showed that cotinine and H. pylori were significantly associated with dental caries. The co-existence of both among cases with dental caries may be a new finding and may work synergistically with each other.
- 著者
- Rafiqul Islam Mohammad Khursheed Alam Ayako Mukai Yumiko Murakami Masahito Shoumura Naoto Osuga Mohd Fadhli Khamis
- 出版者
- THE SOCIETY FOR HARD TISSUE REGENERATIVE BIOLOGY
- 雑誌
- Journal of Hard Tissue Biology (ISSN:13417649)
- 巻号頁・発行日
- vol.26, no.4, pp.361-368, 2017-10-01 (Released:2017-10-03)
- 参考文献数
- 24
- 被引用文献数
- 1
Research related to tooth size, tooth size discrepancy and relationship with BMI in transgender population is yet to be explored in dentistry. The purpose of this study is to establish normative data on mesiodistal width dimensions associated with BMI and tooth size discrepancy in transgender population. The data were derived from dental casts of 151 transgender individuals (75 transgender male, 76 transgender female; age group 18-30). Data were analysed using independent t-test and ANOVA. The mean and standard deviation were calculated for individual tooth size, Bolton’s overall and anterior ratios, and BMI separately for transgender males and females. The mesiodistal widths of the maxillary teeth showed higher variability than the mandibular teeth and the mean value was higher in transgender females than in males and revealed statistically significant differences. Bolton’s anterior ratios were found to be 78.05 (±3.67) for male and 78.90 (±4.12) for female. The mean of Bolton’s overall tooth ratio for male 91.03(±3.66) and for women was 91.46(±3.91) with no significant differences (p >0.05). No significant differences between BMI and mesiodistal tooth dimensions except for the left first molar tooth in mandible and left lateral incisor tooth in maxilla between overweight and underweight groups (p<0.05). These findings indicate that population-specific standards are necessary for clinical assessments and for several dental treatment purposes. Moreover, it is appropriate to use transgender norms in a regular dental practice for transgender individuals.