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Alhajj MN, Al-Maweri SA, Folayan MO, Halboub E, Khader Y, Omar R, Amran AG, Al-Batayneh OB, Celebić A, Persic S, Kocaelli H, Suleyman F, Alkheraif AA, Divakar DD, Mufadhal AA, Al-Wesabi MA, Alhajj WA, Aldumaini MA, Khan S, Al-Dhelai TA, Alqahtani AS, Murad AH, Makzoumé JE, Kohli S, Ziyad TA. Oral health practices and self-reported adverse effects of E-cigarette use among dental students in 11 countries: an online survey. BMC Oral Health 2022; 22:18. [PMID: 35081945 PMCID: PMC8793181 DOI: 10.1186/s12903-022-02053-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/18/2022] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES E-cigarette use has become popular, particularly among the youth. Its use is associated with harmful general and oral health consequences. This survey aimed to assess self-reported oral hygiene practices, oral and general health events, and changes in physiological functions (including physical status, smell, taste, breathing, appetite, etc.) due to E-cigarette use among dental students. METHODS This online, multicounty survey involved undergraduate dental students from 20 dental schools across 11 different countries. The questionnaire included demographic characteristics, E-cigarette practices, self-reported complaints, and associated physiological changes due to E-cigarette smoking. Data were descriptively presented as frequencies and percentages. A Chi-square test was used to assess the potential associations between the study group and sub-groups with the different factors. Statistical analysis was performed using SPSS at P < 0.05. RESULTS Most respondents reported regular brushing of their teeth, whereas only 70% used additional oral hygiene aids. Reported frequencies of complaints ranged from as low as 3.3% for tongue inflammation to as high as 53.3% for headache, with significant differences between E-cigarette users and non-users. Compared to non-smokers, E-cigarette users reported significantly higher prevalence of dry mouth (33.1% vs. 23.4%; P < 0.001), black tongue (5.9% vs. 2.8%; P = 0.002), and heart palpitation (26.3%% vs. 22.8%; P = 0.001). Although two-thirds of the sample reported no change in their physiological functions, E-cigarette users reported significant improvement in their physiological functions compared to never smokers or tobacco users. CONCLUSION Dental students showed good oral hygiene practices, but E-cigarette users showed a higher prevalence of health complications.
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Affiliation(s)
| | | | - Morenike O Folayan
- Department of Child Dental Health, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Esam Halboub
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
- Department of Oral Medicine, Oral Pathology and Oral Radiology, Faculty of Dentistry, Sana'a University, Sana'a, Yemen
| | - Yousef Khader
- Department of Public Health, Community Medicine and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Ridwaan Omar
- Department of Restorative Sciences, Division of Prosthodontics, Faculty of Dentistry, Kuwait University, Safat, Kuwait
| | - Abdullah G Amran
- Department of Periodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen
| | - Ola B Al-Batayneh
- Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Asja Celebić
- Department of Removable Prosthodontics, School of Dental Medicine and Clinical Hospital Centre, University of Zagreb, Zagreb, Croatia
| | - Sanja Persic
- Department of Removable Prosthodontics, School of Dental Medicine and Clinical Hospital Centre, University of Zagreb, Zagreb, Croatia
| | - Humeyra Kocaelli
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Istanbul University, Istanbul, Turkey
| | - Firas Suleyman
- Department of Prosthodontics, Faculty of Dentistry, University of Health Sciences, İIstanbul, Turkey
| | - Abdulaziz A Alkheraif
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Darshan D Divakar
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdulbaset A Mufadhal
- Department of Conservative Dentistry, Faculty of Dentistry, Sana'a University, Sana'a, Yemen
| | - Mohammed A Al-Wesabi
- Department of Preventive and Biomedical Science, Faculty of Dentistry, University of Science and Technology, Taiz, Yemen
| | - Wadhah A Alhajj
- Department of Periodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen
- Department of Dentistry, Faculty of Medical Sciences, Civilization University, Sana'a, Yemen
| | - Mokhtar A Aldumaini
- Department of Fixed and Removable Prosthodontics, Faculty of Dentistry, University of Ibb, Ibb, Yemen
| | - Saadika Khan
- Department of Restorative Dentistry, Faculty of Dentistry, University of the Western Cape, Cape Town, South Africa
| | - Thiyezen A Al-Dhelai
- Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Buraydah, Saudi Arabia
- Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, University of Ibb, Ibb, Yemen
| | - Ahmed Shaher Alqahtani
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Ali H Murad
- Department of Oral Diagnosis, College of Dentistry, University of Al-Qadisiyah, Al-Diwaniya, Iraq
| | - Joseph E Makzoumé
- Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon
| | - Shivani Kohli
- Division of Clinical Dentistry, School of Dentistry, International Medical University (IMU), Kuala Lumpur, Malaysia
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Saadé JM, El-Khatib W, Chedid NR, Makzoumé JE, El-Halabi MT, El-Hage F. Effect of self-assessment in a removable prosthodontics preclinical course on skills and competence. J Dent Educ 2021; 86:393-400. [PMID: 34761392 DOI: 10.1002/jdd.12821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/29/2021] [Revised: 10/11/2021] [Accepted: 10/31/2021] [Indexed: 11/07/2022]
Abstract
PURPOSE Self-assessment is increasingly implemented in medical professions' curricula. In this research, the authors measure the effects of self-assessment within a preclinical removable prosthodontics course among dental students in a private dental school according to the European qualifications framework descriptors. MATERIALS AND METHODS Thirty subjects, all fourth-year dental students, were included in this experiment. Fifteen subjects were included in each of the experimental and control groups during one semester. The experimental group subjects used the study roadmap tool in their preclinical tasks. The control group subjects executed the same preclinical tasks under instructor supervision only. All subjects were filmed, and an autonomy score was given to every subject per session. At the end of the semester, cognitive skills development was compared using the Kember et al. questionnaire while practical skills development was compared using a comparison of grades. Two focus groups were undertaken with experimental group subjects. Qualitative and quantitative data were collected and statistically analyzed (p < 0.005). RESULTS Subjects from the experimental group showed development in critical thinking, practical skills, autonomy, and taking responsibility, thus development in the competence level. CONCLUSION Implementation of self-assessment within preclinical courses may develop skills and competence among dental students, yet more studies are needed.
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Affiliation(s)
- Jean-Michel Saadé
- Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint-Joseph University, Beirut, Lebanon
| | | | - Nada R Chedid
- Department of Paediatric Dentistry, Faculty of Dental Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Joseph E Makzoumé
- Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint-Joseph University, Beirut, Lebanon
| | | | - Fadi El-Hage
- Faculty of Education, Saint-Joseph University, Beirut, Lebanon
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Alhajj MN, Omar R, Khader Y, Celebić A, El Tantawi M, Folayan MO, Al-Maweri SA, Halboub E, Alkheraif AA, de Sousa-Neto MD, Vukovic A, Arheiam A, Ismail IA, Abdullah AG, Amran AG, Kohli S, Ariffin Z, Kocaelli H, Khan S, Ramos Márquez J, Assad M, Brangkgei I, Makzoumé JE, Prasad D A, Murad AH, Basnet BB, Albaraes A, Camargo R, Persic S, Muhammad F. Happiness among dentists: a multi-scale, multi-national study from 21 countries. Int Dent J 2020; 70:328-339. [PMID: 32501563 DOI: 10.1111/idj.12579] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES The extent to which dentists are happy with their profession and their life has not been well studied. The present study aimed to explore the level of happiness, satisfaction with life and psychological well-being among a sample of dental professionals from 21 countries. MATERIALS AND METHODS The sample comprised 2,200 dentists from 21 countries. Three scales - Subjective Happiness Scale (SHS), Satisfaction With Life Scale (SWLS), and Affect Balance Scale (ABS) - were used to measure the subjective responses. Data related to demographic and social characteristics were recorded. Mann-Whitney and Kruskal-Wallis tests were used as appropriate. Scales were correlated, and multiple linear regression analyses were employed to identify the independent determinants of SHS, SWLS and ABS. Data were analysed using the SPSS software program; a value of P <0.05 was considered significant. RESULTS The overall mean scores of SHS, SWLS and ABS were 18.53 ± 5.06, 23.06 ± 6.25 and 1.26 ± 2.40, respectively, with significant differences found across countries: dentists working in Croatia, Peru and Serbia recorded the highest scores, unlike dentists practicing in Yemen, Syria, and Iraq, who recorded the lowest scores. There were significant, moderately positive correlations between the various scales: SHS and SWLS: r = 0.535, P < 0.001; SHS and ABS: r = 0.58, P < 0.001; and SWLS and ABS: r = 0.533, P < 0.001. Country of practice, age, qualification and monthly income were the significant independent predictors of SHS, SWLS and ABS. CONCLUSION Country of residence and social characteristics were associated with dentists' responses regarding their feelings and subjective well-being.
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Affiliation(s)
| | - Ridwaan Omar
- Department of Prosthodontics, Faculty of Dentistry, Kuwait University, Safat, Kuwait
| | - Yousef Khader
- Department of Community Medicine, Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Asja Celebić
- Department of Removable Prosthodontics, Faculty of Dentistry, University of Zagreb, Zagreb, Croatia
| | - Maha El Tantawi
- Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | | | - Sadeq Ali Al-Maweri
- Department of Oral Medicine and Diagnostic Sciences, AlFarabi Colleges, Riyadh, Kingdom of Saudi Arabia
| | - Esam Halboub
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Abdulaziz A Alkheraif
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Manoel Damião de Sousa-Neto
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Sao Paulo, Brazil
| | - Ana Vukovic
- Department of Pediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Arheiam Arheiam
- Department of Community and Preventive Dentistry, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
| | - Ibrahim A Ismail
- Department of Oral Rehabilitation, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
| | - Abbas G Abdullah
- Department of Basic Sciences, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
| | - Abdullah G Amran
- Department of Periodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen
| | - Shivani Kohli
- Division of Clinical Dentistry, School of Dentistry, International Medical University (IMU), Bukit Jalil, Kuala Lumpur, Malaysia
| | - Zaihan Ariffin
- Prosthodontics Unit, School of Dental Sciences, Universiti Sains Malaysia, Kubang Kerian, Kota Bharu, Kelantan, Malaysia
| | - Humeyra Kocaelli
- Department of Oral Surgery and Medicine, Faculty of Dentistry, University of Istanbul, Istanbul, Turkey
| | - Saadika Khan
- Department of Restorative Dentistry, Faculty of Dentistry, University of the Western Cape, Cape Town, South Africa
| | - Juan Ramos Márquez
- Department of Oral Rehabilitation, Faculty of Dentistry, University of San Martín de Porres, Lima, Peru
| | - Mounzer Assad
- Department of Oral & Maxillofacial Surgery, Faculty of Dentistry, University of Tishreen, Lattakia, Syria
| | - Imad Brangkgei
- Department of Oral Medicine, Faculty of Dentistry, Syrian Private University (SPU), Damascus, Syria.,Department of Oral Medicine, Faculty of Dentistry, Damascus University, Damascus, Syria
| | - Joseph E Makzoumé
- Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint-Joseph University of Beirut, Beirut, Lebanon
| | - Anupama Prasad D
- Department of Prosthodontics and Crown-Bridge, A.B. Shetty Memorial Institute of Dental Sciences, Nitte University, Mangalore, India
| | - Ali H Murad
- Department of Oral Diagnosis, College of Dentistry, University of Al-Qadisiyah, Al-Diwaniya, Iraq
| | - Bishal Babu Basnet
- Department of Prosthodontics and Crown-Bridge, College of Dental Surgery, BP Koirala Institute of Health Sciences, Dharan, Nepal
| | - Asma Albaraes
- Department of Community and Preventive Dentistry, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
| | - Rafael Camargo
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Sao Paulo, Brazil
| | - Sanja Persic
- Department of Removable Prosthodontics, Faculty of Dentistry, University of Zagreb, Zagreb, Croatia
| | - Faheemuddin Muhammad
- Department of Prosthodontics, University College of Dentistry, University of Lahore, Punjab, Pakistan
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Alhajj MN, Khader Y, Murad AH, Celebic A, Halboub E, Márquez JR, Macizo CC, Khan S, Basnet BB, Makzoumé JE, de Sousa-Neto MD, Camargo R, Prasad DA, Faheemuddin M, Mir S, Elkholy S, Abdullah AG, Ibrahim AA, Al-Anesi MS, Al-Basmi AA. Perceived sources of stress amongst dental students: A multicountry study. Eur J Dent Educ 2018; 22:258-271. [PMID: 29607584 DOI: 10.1111/eje.12350] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
AIMS The aim of this study was to explore the perceived sources of stress reported by dental students from fourteen different countries. METHODS A total of 3568 dental students were recruited from 14 different dental schools. The dental environmental stress (DES) questionnaire was used including 7 domains. Responses to the DES were scored in 4-point Likert scale. Comparison between students was performed according to the study variables. The top 5 stress-provoking questions were identified amongst dental schools. Data were analysed using SPSS software program. Mann-Whitney and Kruskal-Wallis tests were used as appropriate. Logistic regression analysis was also conducted to determine the effect of the studied variables on the stress domains. The level of statistical significance was set at <.05. RESULTS Internal consistency of the scale was excellent (0.927). Female students formed the majority of the total student population. The percentage of married students was 4.8%. Numbers of students in pre-clinical and clinical stages were close together. The most stress-provoking domain was "workload" with a score of 2.05 ± 0.56. Female students scored higher stress than male students did in most of the domains. Significant differences were found between participating countries in all stress-provoking domains. Dental students from Egypt scored the highest level of stress whilst dental students from Jordan scored the lowest level of stress. CONCLUSION The self-reported stress in the dental environment is still high and the stressors seem to be comparable amongst the participating countries. Effective management programmes are needed to minimise dental environment stress.
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Affiliation(s)
- M N Alhajj
- Department of Prosthodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen
| | - Y Khader
- Department of Community Medicine, Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - A H Murad
- Department of Oral Diagnosis, College of Dentistry, Al-Qadisiyah University, Al-Diwaniya, Iraq
| | - A Celebic
- Department of Removable Prosthodontics, Faculty of Dentistry, University of Zagreb, Zagreb, Croatia
| | - E Halboub
- Division of Oral Medicine, Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - J R Márquez
- Department of Oral Rehabilitation, Faculty of Dentistry, University of San Martín de Porres, Lima, Peru
| | - C C Macizo
- Department of Oral Rehabilitation, Faculty of Dentistry, University of San Martín de Porres, Lima, Peru
| | - S Khan
- Department of Restorative Dentistry, Faculty of Dentistry, University of the Western Cape, Cape Town, South Africa
| | - B B Basnet
- Department of Prosthodontics and Crown-Bridge, College of Dental Surgery, BP Koirala Institute of Health Sciences, Dharan, Nepal
| | - J E Makzoumé
- Department of Removable Prosthodontics, Faculty of Dentistry, Saint-Joseph University of Beirut, Beirut, Lebanon
| | - M D de Sousa-Neto
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Sao Paulo, Brazil
| | - R Camargo
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Sao Paulo, Brazil
| | - D A Prasad
- Department of Prosthodontics and Crown-Bridge, A.B. Shetty Memorial Institute of Dental Sciences, Nitte University, Mangalore, India
| | - M Faheemuddin
- Department of Prosthodontics, University College of Medicine and Dentistry, University of Lahore, Punjab, Pakistan
| | - S Mir
- Private Dental Clinic, Punjab, Pakistan
| | - S Elkholy
- Department of Implants and Removable Prosthodontics, Faculty of Dentistry, Pharos University in Alexandria, Alexandria, Egypt
| | - A G Abdullah
- Department of Basic Sciences, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
| | - A A Ibrahim
- Department of Prosthodontics, Faculty of Dentistry, Al-Gazira University, Wad Medani, Sudan
| | - M S Al-Anesi
- Conservative Department, Faculty of Dentistry, Thamar University, Dhamar, Yemen
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Boulos PJ, Akiki LA, Makzoumé JE, Fakhoury J, Tohmé H, El Hage FS. Retentive force variations of stud attachments for implant overdentures. Gen Dent 2018; 66:41-45. [PMID: 29964247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Implant overdentures are considered a standard treatment option by many practitioners, especially for edentulous mandibles. Stud attachments have been used extensively in the construction of these overdentures. In this study, the retentive forces of O-ring/ball and Locator overdenture attachments under various conditions in the mouth were investigated through pull-out tests. In dry testing, the retentive forces of the O-ring/ball attachment started higher than those of the Locator attachment but significantly decreased after 50 insertion-removal cycles (P = 0.014). The Locator attachment had no significant change in its retentive force over time (P = 0.328). In wet testing, a saliva substitute was applied to the stud attachments between cycles. The retentive force of the O-ring/ball attachment increased significantly in wet testing compared to dry testing (P < 0.0001). The retentive force of the Locator system during wet testing did not change significantly from that achieved during dry testing for the first 80 cycles, but then it increased to reach the same levels as the O-ring/ball system at 510 cycles (P < 0.05). Within the limitations of the present study, the results suggest that it is advisable to avoid using O-ring/ball attachments as anchors for implant overdentures in a dry mouth environment. In such cases, Locator attachment or metal-to-metal attachment components would be preferable as implant overdenture anchors. In a saliva-irrigated mouth, there is no significant difference between the retentive properties of the O-ring/ball and Locator attachments over 6-9 months' use.
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Makzoumé JE. A procedure for directly measuring the physiologic rest position and occlusal vertical dimension. J Prosthet Dent 2017; 117:697-698. [DOI: 10.1016/j.prosdent.2016.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/01/2016] [Accepted: 10/03/2016] [Indexed: 10/20/2022]
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Abi-Ghosn C, Zogheib C, Younes R, Makzoumé JE. The ala-tragus line as a guide for orientation of the occlusal plane in complete dentures. J Contemp Dent Pract 2014; 15:108-11. [PMID: 24939275 DOI: 10.5005/jp-journals-10024-1497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIM The use of the ala-tragus line (ATL) to orient the occlusal plane (OP) is controversial because there is a lack of agreement on the exact points of reference for this line. This study determined the relationship between the natural OP and ATL which was established by using the inferior border of the ala of the nose and (1) the superior border of the tragus (ATL1), (2) the tip (ATL2), and (3) the inferior border of the tragus (ATL3). MATERIALS AND METHODS Lateral cephalometric radiographs were taken of each subject by a standard method and tracings were obtained on acetate paper to show the OP and the three ala-tragus lines. The relationship between the OP and each of ATL was measured for each subject. Mean and standard deviation values were then calculated for the relationship. Statistical analysis was performed using repeated measure analysis of variance followed by Bonferroni pairwise comparisons and Student's t-test (α = 0.05). RESULTS Significant differences were noted between the three mean angles (p = 0.046). The mean angle (3.275 degrees ± 2.54) formed by OP and ATL2 was significantly the smallest (p < 0.05). CONCLUSION The ala-tragus line, extending from the inferior border of the ala of the nose to the tip of the tragus of the ear presented the closest relationship to the natural occlusal plane.
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Affiliation(s)
- Carole Abi-Ghosn
- Private Practice and Senior Lecturer, Department of Removable Prosthodontics, School of Dentistry Saint-Joseph University, Beirut, Lebanon
| | - Carla Zogheib
- Private Practice and Assistant Professor, Department of Endodontics, Saint-Joseph University, Beirut Lebanon
| | - Ronald Younes
- Private Practice and Assistant Professor, Department of Surgery, Saint-Joseph University, Beirut Lebanon
| | - Joseph E Makzoumé
- Private Practice, Associate Professor and Chairman, Department of Removable Prosthodontics, School of Dentistry Saint-Joseph University, Beirut, Lebanon
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Ghosn CA, Zogheib C, Makzoumé JE. Relationship between the occlusal plane corresponding to the lateral borders of the tongue and ala-tragus line in edentulous patients. J Contemp Dent Pract 2012; 13:590-4. [PMID: 23250158 DOI: 10.5005/jp-journals-10024-1192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIM Definitions of the ala-tragus line (ATL) cause confusion, because the exact points of reference for this line do not agree. This study determined the relationship between the prosthetic occlusal plane (OP) corresponding to the lateral borders of the tongue and ATL which was established by using the inferior border of the ala of the nose and (1) the superior border of the tragus (ATL 1), (2) the tip (ATL 2) and (3) the inferior border of the tragus (ATL 3). MATERIALS AND METHODS Neutral zone moldings using phonation and autopolymerizing acrylic resin were recorded and leveled with the lateral borders of the tongue. Lateral cephalometric radiographs were taken of each subject by a standard method. Tracings were obtained on acetate paper to show the prosthetic OP and the three ATLs. The relationship between the prosthetic OP and each of ATL was measured for each subject. Mean and standard deviation values were then calculated for the relationship. Statistical analysis was performed using repeated measure analysis of variance followed by Bonferroni pairwise comparisons and Student's t-test (α = 0.05). RESULTS Significant difference was found between the three mean angles (p = 0.001). There was no significant difference between the mean angle (5.00° ± 4.38) formed by OP and ATL 2, and the mean angle (4.90° ± 3.50) formed by OP and ATL 3 (p = 1.00) which revealed the smallest. CONCLUSION The findings of this study indicated that ATLs, extending from the inferior border of the ala of the nose to (1) the tip of the tragus of the ear, and (2) the inferior border of the tragus presented the closest relationship to the prosthetic OP corresponding to the lateral borders of the tongue. CLINICAL SIGNIFICANCE When the ATL is used for orientation of the OP in denture construction, it would seem preferable to define it as running from the inferior border of the ala of the nose to the tip or to the inferior border of the tragus of the ear.
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Affiliation(s)
- Carole Abi Ghosn
- Department of Removable Prosthodontics, School of Dentistry, Saint Joseph University, Beirut, Lebanon
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Abstract
STATEMENT OF PROBLEM Several studies have compared dentures fabricated using neutral zone and conventional techniques. However, studies comparing swallowing and phonetic techniques for assessing the location and shape of the neutral zone could not be identified in the literature. PURPOSE The purpose of this pilot study was to compare the outline form of the phonetic and swallowing neutral zone impression techniques for the same subjects. MATERIAL AND METHODS Nine denture wearers with advanced mandibular ridge resorption were included in this study. For each subject 2 trays were prepared in autopolymerizing acrylic resin. One method used phonetics and tissue conditioner to shape the neutral zone; the second method used swallowing and modeling plastic impression compound. The resulting neutral zone impressions were leveled to the same occlusal height by gently grinding the occlusal surface on sandpaper until it corresponded with landmarks (corners of the mouth, two thirds of the height of the retromolar pads, bilaterally) noted on the cast. The impression was inverted onto graph paper, and the contour was outlined with a lead pencil. One impression was made for each subject, for each technique. The buccal contours of both neutral zones coincided at the median line. The maximum distance between the zones was measured in a buccolingual direction in the anterior, premolar, and molar regions bilaterally. When the location of the phonetic neutral zone in relation compared to the swallowing neutral zone was buccally oriented, a plus score was given. When the phonetic neutral zone was lingually located, a minus score was given. When the 2 lines coincided, a score of 0 was given. Measurements were made from direct readings on the graph paper. Statistical analysis was performed using the Sign test (alpha=.05). RESULTS Significant differences were noted buccally in the left molar (P =.031) and right molar (P =.003) regions and also in the left and right premolar regions (P =.007), where the swallowing neutral zone was found to be located buccal to the phonetic neutral zone. Significant differences were also noted lingually, in the right premolar region (P =.015), where the swallowing neutral zone was found to be located lingual to the phonetic neutral zone. There was no significant difference between the techniques for the anterior region. CONCLUSION Within the limits of this study, the phonetic neutral zone appears to be narrower posteriorly compared to the swallowing neutral zone, thus limiting premolar and molar positioning.
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