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https://rsuir-library.rsu.ac.th/handle/123456789/2482| Title: | Assessment of smile line and gingival display in a group of Thai young adults |
| Other Titles: | รายงานวิจัย โครงการวิจัย การประเมินเส้นรอยยิ้ม และการเผยของเหงือกในวัยหนุ่มสาวไทย |
| Authors: | Supranee Benjasupattananan |
| Keywords: | Smiling;Gums -- Health;Gums -- care and hygiene |
| Issue Date: | 2017 |
| Publisher: | Research Institute of Rangsit University |
| metadata.dc.description.other-abstract: | This cross-sectional clinical study aims to 1. Determine prevalence of smile type in Thai young adults 20-35 years of age and compare different of smile type between male and female. 2. Evaluate the type of smile in combined with tooth shape which is the most attractiveness in the opinion of Thai young adults 20-35 years of age. Materials and methods: 400 volunteers Thai young adults, 159 males and 241 females, aged between 20-35 years participated in this study. Each volunteer was taken 3 photographs including lip in repose, social smile and maximum smile. The smile line was classified as low, average, high < 2 mm and high ≥ 2 mm. The gingival display in high smile line group was measured by using 2-mm diameter reference dot which was placed on the middle of the labial surface of the maxillary right central incisor. Chi-square test was used to compare proportions of each smile line type between male and female. Furthermore, 400 volunteers enrolled to rate the attractiveness score of 12 smile characteristics different in tooth shape and smile type. After that, the Wilcoxon signed-rank test was used to test the significance between both the variables. Results: The most common smile line in a group of Thai young adults population was average smile line (57.5%), followed by high smile line (34.3%) and low smile line (8.3%) respectively. Considering by gender, the highest proportions were average smile line for both male and female, 62.73% and 53.97%, respectively. The proportions of smile line type between male and female were statistically significant different (p<0.05). No significant different was seen between male and female who have mean maxillary gingival display ≥ 2 mm and < 2 mm in high smile line. Among 12 smile types, Rating score of photo of average smile line with square tooth shape had highest score from all other smile types statistically significant (p<0.05). Moreover, the second highest scores are the set of high ≥ 2 mm smile line with square tooth shape, high < 2 mm smile line with triangle tooth shape and high < 2 mm smile line with square tooth shape. Whereas, the 3 bottom score are square, ovoid and triangle tooth shape of low smile line. Conclusion: Average smile line is the most common smile line in a group of Thai young adults. Additionally, the average smile line with square tooth shape has the highest attractiveness score. |
| URI: | https://rsuir-library.rsu.ac.th/handle/123456789/2482 |
| metadata.dc.type: | Other |
| Appears in Collections: | Den-Research |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SUPRANEE BENJASUPATTANANAN.pdf | 473.12 kB | Adobe PDF | View/Open |
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