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Ngoc VTN, Tran DK, Dung TM, Anh NV, Nga VT, Anh LQ, Hanh NTT, Linh NP, Quynh HN, Chu DT. Perceptions of Dentists and Non-Professionals on Some Dental Factors Affecting Smile Aesthetics: A Study from Vietnam. Int J Environ Res Public Health 2020; 17:ijerph17051638. [PMID: 32138374 PMCID: PMC7084949 DOI: 10.3390/ijerph17051638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/27/2020] [Accepted: 02/29/2020] [Indexed: 11/24/2022]
Abstract
Aim: It is important to meet the aesthetic expectation regarding the smile concept of both dentists and non-professionals after treatment is complete. Therefore, the study aims to evaluate the effects of altered displays in incisors, gingival margin, and other smile-related-factors on dentists’ vs. non-professionals’ aesthetics perceptions. Materials and method: We altered the features of 42 digital smile photographs to generate the changed displays in incisors, gingival margin, and other smile-related-factors. Then, these altered photographs were presented to 51 dentists and 51 non-professionals, and each picture was rated by each participant with a visual analog scale ranging from 0 (very ugly) to 100 (very beautiful). Results: We found that the alterations in incisors, gingival margin, and other factors affected studied groups’ aesthetic perception of smile. The ugly smile threshold rated by both groups for crown length of maxillary central incisors was 2.0 mm. This threshold was 2.5 mm for dentists, with moving the gingival margin of maxillary lateral incisors to the incisal ridge. The ugly thresholds for other smile-related-factors were different between studied groups; for example, the ugly thresholds for gingival exposure levels were 3 and 4mm for dentists and non-professionals, respectively. Thus, our data indicate that altered displays in incisors, gingival margin, and other smile-related-factors affected perceptions of both studied groups on smile aesthetics, but dentists tended to feel more refined than non-professionals. Dentists and non-professionals had significantly different aesthetic perceptions of the alteration of the gingival exposure level. Conclusion: Both dentists and non-professionals’ perceptions should be fully considered during orthodontic and prosthodontic treatment to achieve optimum aesthetic results.
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Affiliation(s)
- Vo Truong Nhu Ngoc
- School of Odonto Stomatology, Hanoi Medical University, Hanoi 100000, Vietnam; (V.T.N.N.); (T.M.D.); (L.Q.A.)
| | - Dang-Khoa Tran
- Department of Anatomy, University of Medicine Pham Ngoc Thach, Ho Chi Minh City 700000, Vietnam;
| | - Truong Manh Dung
- School of Odonto Stomatology, Hanoi Medical University, Hanoi 100000, Vietnam; (V.T.N.N.); (T.M.D.); (L.Q.A.)
| | - Nguyen Viet Anh
- School of Odonto Stomatology, Hanoi Medical University, Hanoi 100000, Vietnam; (V.T.N.N.); (T.M.D.); (L.Q.A.)
| | - Vu Thi Nga
- Institute for Research and Development, Duy Tan University, Danang 550000, Vietnam
- Correspondence: (V.T.N.); (D.T.C.)
| | - Le Quynh Anh
- School of Odonto Stomatology, Hanoi Medical University, Hanoi 100000, Vietnam; (V.T.N.N.); (T.M.D.); (L.Q.A.)
- Sydney Dental School, Faculty of Health and Medicine, The University of Sydney, Science Rd, Camperdown NSW 2050, Australia
| | - Nguyen Thi Thuy Hanh
- Institute for Preventive medicine and Public Health, Hanoi Medical University, Hanoi 100000, Vietnam;
| | | | - Hoang Ngoc Quynh
- Nottingham Trent University, 50 Shakespeare St, Nottingham NG1 4FQ, UK;
| | - Dinh Toi Chu
- Faculty of Biology, Hanoi National University of Education, Hanoi 100000, Vietnam
- Correspondence: (V.T.N.); (D.T.C.)
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Minh NH, Dung TM, Ngoc VTN, Tuan PH, Ha NH, Son LV, Phuong NTT, Doi HT, Thanh VV, Dinh TC, Phuong NT, Dinh TC. Quality of Life and Suitability with Vietnamese Harmonious Face Index in Class III Malocclusion Patients. Open Access Maced J Med Sci 2019; 7:4239-4243. [PMID: 32215070 PMCID: PMC7084028 DOI: 10.3889/oamjms.2019.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/20/2019] [Accepted: 09/21/2019] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND: Maxillary Lefort I osteotomy, mandibular bilateral sagittal split ramus was frequently used in correcting skeletal class III malocclusion. There was a lack of research on class III malocclusion patients’ quality of life (QoL) after bimaxillary osteotomy. AIM: Class I Intermaxillary relationship was achieved, aesthetic was significantly improved. Significant improvement in Class III skeletal patients’ quality of life was acquired. The achievement of harmonious face would be beneficial to the facial aesthetics of patients, thus improving the quality of life. METHODS: Harmonious face index is an effective criterion in assessing the surgery’s outcome. In this study was conducted on 30 patients at Hanoi National Hospital of Odontostomatology, Viet Duc Hospital, and Hong Ngoc Hospital from April 2017 to April 2018, and it was a quasi-experimental study with self-comparison, 12 months follow up. RESULTS: Orthognathic surgery effectively corrected malocclusion crossbite, dental compensation, and helped to improve facial aesthetics. 100% of patients had the quality of life improved, good quality of life consisted of 86.7%. In comparison with a harmonious facial index of Kinh ethnic in Vietnam, 70% of patients achieved skeletal harmony, 63.3% of patients achieved dental harmony, 80% achieved soft tissue harmony. CONCLUSIONS: Vietnamese harmonious facial index should be used in planning and pre-surgical simulation.
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Affiliation(s)
- Nguyen Hoang Minh
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Truong Manh Dung
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | | | - Pham Hoang Tuan
- Hanoi National Hospital of Odontostomatology, Hanoi, Vietnam
| | | | - Le Van Son
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | | | | | | | - Thien Chu Dinh
- Institute for Research and Development, Duy Tan University, Danang, Vietnam
| | - Nguyen Thi Phuong
- NTT Hi-tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Toi Chu Dinh
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam.,Department of Human and Animal Physiology, Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam
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Dung TM, Ngoc VTN, Hiep NH, Khoi TD, Xiem VV, Chu-Dinh T, Cieslar-Pobuda A, Stoufi E, Show PL, Tao Y, Bac ND, Ba NV, Le QA, Pham VH, Chu DT. Author Correction: Evaluation of dental arch dimensions in 12 year-old Vietnamese children - A cross-sectional study of 4565 subjects. Sci Rep 2019; 9:16405. [PMID: 31695133 PMCID: PMC6834613 DOI: 10.1038/s41598-019-53311-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Truong Manh Dung
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | | | - Nguyen Hung Hiep
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Truong Dinh Khoi
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Vu Van Xiem
- Hanoi General Hospital of Traditional Medicine, Hanoi, Vietnam
| | - Thien Chu-Dinh
- Institute for Research and Development, Duy Tan University, 03 QuangTrung, Danang, Vietnam.
| | - Artur Cieslar-Pobuda
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, Oslo, Norway
| | - Eleana Stoufi
- Harvard School of Dental Medicine, Boston, MA, 02115, USA.,Department of Oral Medicine, University of Rwanda, Republic of Rwanda, Kigali, 20093, Rwanda
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Yang Tao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | | | | | - Quynh-Anh Le
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Van-Huy Pham
- AI Lab, Faculty of Information Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Dinh-Toi Chu
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam. .,Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam.
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Dung TM, Nhu Ngoc VT, Khoi TD, Chu DT, Dung DT, Khue LN, Anh LQ, Nguyen CB, Khan MI, Gadbail AR, Gondivkar SM, Nga VT. The dental arch dimensions in Vietnamese children at 7 years of age, and their variation by gender and ethnicity. J Oral Biol Craniofac Res 2019; 9:236-240. [PMID: 31205849 DOI: 10.1016/j.jobcr.2019.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 03/22/2019] [Accepted: 06/02/2019] [Indexed: 12/01/2022] Open
Abstract
Purpose Dental arch dimensions are important not only in dentistry (e.g. orthodontists and prosthodontists, and forensic odontology), but also other medical fields, biology, biometrics, painting or sculpture. This study aimed to determine these dimensions in Vietnamese children and compare these measurements across four ethnic groups and genders. Methods A cross-sectional study was conducted on 3204 Vietnamese children at 7 years of age from four major ethnic groups in Vietnam (Kinh, Tay, Thai and Muong). Results The means variables in study subjects were 33.72 ± 2.16 mm for upper inter-canine width (UCW); 52.74 ± 2.55 mm for upper inter-molar width (UMW); 8.69 ± 1.79 mm for upper anterior length (UAL); 29.59 ± 1.97 mm for upper posterior length (UPL); 26.94 ± 2.49 mm for lower inter-canine width (LCW); 45.89 ± 2.59 mm for lower inter-molar width (LMW); 5.04 ± 1.53 mm for lower anterior length (LAL); and 26.22 ± 2.07 mm for lower posterior length (LPL). The UCM, UMW, and LMW of Muong were significantly wider in males, but narrower in females compared with other ethnic groups. The Kinh, Tay and Thai groups had no significant differences between genders in all dimensions, but these sizes were significantly larger in males than females of Muong group. Conclusions This study presents the means of dental arch dimensions in 7 year-old Vietnamese children, and there is no statistical differences in these dimensions between genders of almost studied groups, except Muong group. Ethnic differences are observed only in UCW, UMW and LMW of Muong vs other groups. Furthermore, Vietnamese children have dental arch width similar to the African and Caucasian.
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Affiliation(s)
- Truong Manh Dung
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Viet Nam
| | | | - Truong Dinh Khoi
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Viet Nam
| | - Dinh-Toi Chu
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Viet Nam.,Faculty of Biology, Hanoi National University of Education, Hanoi, Viet Nam
| | - Dao Thi Dung
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Viet Nam
| | - Luong Ngoc Khue
- Medical Services Administration, Ministry of Health, Hanoi, Viet Nam
| | - Le Quynh Anh
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Viet Nam
| | | | - Mohammed Imran Khan
- Department of Otolaryngology - Head & Neck Surgery, Western University, Ontario, Canada
| | - Amol Ramchandra Gadbail
- Department of Dentistry, Indira Gandhi Government Medical College and Hospital, Nagpur, Maharashtra, 440018, India
| | - Shailesh Madhukar Gondivkar
- Department of Oral Medicine & Radiology, Government Dental College & Hospital, Nagpur, Maharashtra, 440003, India
| | - Vu Thi Nga
- Institute for Research and Development, Duy Tan University, 03 Quang Trung, Danang, Viet Nam
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Dung TM, Ngoc VTN, Hiep NH, Khoi TD, Xiem VV, Chu-Dinh T, Cieslar-Pobuda A, Stoufi E, Show PL, Tao Y, Bac ND, Van Ba N, Le QA, Pham VH, Chu DT. Evaluation of dental arch dimensions in 12 year-old Vietnamese children - A cross-sectional study of 4565 subjects. Sci Rep 2019; 9:3101. [PMID: 30816230 PMCID: PMC6395812 DOI: 10.1038/s41598-019-39710-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 01/29/2019] [Indexed: 11/09/2022] Open
Abstract
This study aimed to define the width and length of the dental arch in 12-year-old Vietnamese children, and to elucidate differences between genders and among ethnic groups. A cross-sectional study was conducted in 4565 12 years-old children from the 4 major ethnic groups in Vietnam (Kinh, Muong, Thai, and Tay), with a healthy and full set of 28 permanent teeth that had never had any orthodontic treatment and with no reconstructive materials at the measured points. The mean variables in all subjects were 36.39 mm for upper inter-canine width; 46.88 mm for upper inter-first molar width; 59.43 mm for upper inter-second molar width; 10.41 mm for upper anterior length; 32.15 mm for upper posterior length 1; 45.52 mm for upper posterior length 2; 28.31 mm for lower inter-canine width; 41.63 mm for lower inter-first molar width; 54.57 mm for lower inter-second molar width (LM2W); 7.06 mm for lower anterior length (LAL); 26.87 mm for lower posterior length 1 (LP1L); and 41.29 mm for lower posterior length 2. Significant differences in these parameters between genders were found in all ethnic groups, except for LAL in the Kinh and Thai groups, and LP1L in the Tay group. Significant ethnic differences were also found in almost all parameters except LM2W in both males and females. Taken together, the representative sizes of dental arches of 12-year-old Vietnamese children have been defined. Our data indicate that there are some variations in dental arch dimensions among ethnic groups and between genders.
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Affiliation(s)
- Truong Manh Dung
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | | | - Nguyen Hung Hiep
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Truong Dinh Khoi
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Vu Van Xiem
- Hanoi General Hospital of Traditional Medicine, Hanoi, Vietnam
| | - Thien Chu-Dinh
- Institute for Research and Development, Duy Tan University, 03 QuangTrung, Danang, Vietnam.
| | - Artur Cieslar-Pobuda
- Centre for Molecular Medicine Norway (NCMM), Nordic EMBL Partnership, University of Oslo, Oslo, Norway
| | - Eleana Stoufi
- Harvard School of Dental Medicine, Boston, MA, 02115, USA.,Department of Oral Medicine, University of Rwanda, Republic of Rwanda, Kigali, 20093, Rwanda
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Yang Tao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | | | | | - Quynh-Anh Le
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam
| | - Van-Huy Pham
- AI Lab, Faculty of Information Technology, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
| | - Dinh-Toi Chu
- School of Odonto Stomatology, Hanoi Medical University, Hanoi, Vietnam. .,Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam.
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Ngoc VTN, Huong LT, Van Nhon B, Tan NTM, Van Thuc P, Hien VTT, Dung TM, Van Toan N, Anh LQ, Son LH, Chu-Dinh T, Chu DT. The higher prevalence of developmental defects of enamel in the dioxin-affected region than non-dioxin-affected region: result from a cross-sectional study in Vietnam. Odontology 2018; 107:17-22. [DOI: 10.1007/s10266-018-0358-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/02/2018] [Indexed: 11/29/2022]
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Manh Dung T, Truong Nhu Ngoc V, Quynh Anh L, Tuan Anh T. The Micrograph Image of Early Experimental Dental Caries in Permanent Teeth in Hanoi Medical University. J Dent Indones 2016. [DOI: 10.14693/jdi.v23i1.973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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