Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study
Objective: The study aimed to assess and compare both the chewing efficiency and the contact area between class I and class II of Angle’s malocclusions. Material and methods: A total of 120 individuals aged between 19 and 30 years were examined and were divided into two groups according to Angle’s c...
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Springer
2024-04-01
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| Series: | Saudi Dental Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1013905223002808 |
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| author | Ahmed Hamdi Rim Kallala Belhassen Harzallah |
| author_facet | Ahmed Hamdi Rim Kallala Belhassen Harzallah |
| author_sort | Ahmed Hamdi |
| collection | DOAJ |
| description | Objective: The study aimed to assess and compare both the chewing efficiency and the contact area between class I and class II of Angle’s malocclusions. Material and methods: A total of 120 individuals aged between 19 and 30 years were examined and were divided into two groups according to Angle’s class (Class I and class II). The chewing efficiency was quantified using the ViewGum software and two-colored chewing gum. The contact area was quantified using modeling wax and MATLAB software. All data were collected, then, analyzed using SPSS software 21. Data normality was checked through kurtosis test. Descriptive results were calculated. Matched sample t-tests were used to compare chewing efficiency measurements between right and left sides. Independent t-tests were used to compare chewing efficiency and the contact area between class I and class II of Angle’s malocclusions. Linear regression and Pearson correlation were used to assess the correlation between chewing efficiency and the contact area. The significance level was fixed at p = 0.05. Results: For group 1, the mean hue value on both sides was 0.086 ± 0.058. For group 2, it was 0.095 ± 0.055. The difference between both groups was statistically significant (p = 0.03). For group 1, the mean contact area was 49.91 ± 21.47 mm2. For group 2, it was 51.42 ± 19.76 mm2. The difference was statistically not significant (p = 0.4). The correlation between the contact area and the chewing efficiency in both groups was statistically significant and it was negative (in class I p = 0 and R = -0.616; in class II p = 0.01 and R = −0.408). Conclusion: The Chewing is better for patients with Angle’s Class I malocclusion. The contact area is higher. Larger occlusal contact area leads to higher masticatory efficiency. Further studies should be conducted. |
| format | Article |
| id | doaj-art-9f7631bd41ba486185473ea2be4c144b |
| institution | DOAJ |
| issn | 1013-9052 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Springer |
| record_format | Article |
| series | Saudi Dental Journal |
| spelling | doaj-art-9f7631bd41ba486185473ea2be4c144b2025-08-20T02:55:13ZengSpringerSaudi Dental Journal1013-90522024-04-0136463363710.1016/j.sdentj.2023.12.016Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative studyAhmed Hamdi0Rim Kallala1Belhassen Harzallah2Faculty of Dental Medicine Monastir Tunisia; University of MonastirFaculty of Dental Medicine Monastir Tunisia, University of Monastir, Department of Fixed Prosthodontics, Laboratory of Dental Anatomy, Research Laboratory of Occlusodontics and Ceramic Prostheses LR16ES15, 5000 Monastir, Tunisia; Corresponding author.Faculty of dental Medicine Monastir Tunisia, University of Monastir, Department of fixed prosthodontics, Research laboratory of Occlusodontics and Ceramic Prostheses LR16ES15, 5000, Monastir, TunisiaObjective: The study aimed to assess and compare both the chewing efficiency and the contact area between class I and class II of Angle’s malocclusions. Material and methods: A total of 120 individuals aged between 19 and 30 years were examined and were divided into two groups according to Angle’s class (Class I and class II). The chewing efficiency was quantified using the ViewGum software and two-colored chewing gum. The contact area was quantified using modeling wax and MATLAB software. All data were collected, then, analyzed using SPSS software 21. Data normality was checked through kurtosis test. Descriptive results were calculated. Matched sample t-tests were used to compare chewing efficiency measurements between right and left sides. Independent t-tests were used to compare chewing efficiency and the contact area between class I and class II of Angle’s malocclusions. Linear regression and Pearson correlation were used to assess the correlation between chewing efficiency and the contact area. The significance level was fixed at p = 0.05. Results: For group 1, the mean hue value on both sides was 0.086 ± 0.058. For group 2, it was 0.095 ± 0.055. The difference between both groups was statistically significant (p = 0.03). For group 1, the mean contact area was 49.91 ± 21.47 mm2. For group 2, it was 51.42 ± 19.76 mm2. The difference was statistically not significant (p = 0.4). The correlation between the contact area and the chewing efficiency in both groups was statistically significant and it was negative (in class I p = 0 and R = -0.616; in class II p = 0.01 and R = −0.408). Conclusion: The Chewing is better for patients with Angle’s Class I malocclusion. The contact area is higher. Larger occlusal contact area leads to higher masticatory efficiency. Further studies should be conducted.http://www.sciencedirect.com/science/article/pii/S1013905223002808Chewing efficiencyDental morphologyMalocclusionMasticationOcclusionTunisia |
| spellingShingle | Ahmed Hamdi Rim Kallala Belhassen Harzallah Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study Saudi Dental Journal Chewing efficiency Dental morphology Malocclusion Mastication Occlusion Tunisia |
| title | Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study |
| title_full | Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study |
| title_fullStr | Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study |
| title_full_unstemmed | Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study |
| title_short | Chewing efficiency and contact area discrepancies in Angle's class I and II malocclusion: A comparative study |
| title_sort | chewing efficiency and contact area discrepancies in angle s class i and ii malocclusion a comparative study |
| topic | Chewing efficiency Dental morphology Malocclusion Mastication Occlusion Tunisia |
| url | http://www.sciencedirect.com/science/article/pii/S1013905223002808 |
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