Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars
Objective: To evaluate the cephalometric characteristics of mandibles of Saudi patients having impacted third molars and to compare them to those of patients having normally erupted third molars. Material and methods: One hundred and twenty-one Saudi adult subjects (59 females and 62 males; age: 20–...
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| Format: | Article |
| Language: | English |
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Springer
2011-04-01
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| Series: | Saudi Dental Journal |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1013905210000969 |
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| author | Ali H. Hassan |
| author_facet | Ali H. Hassan |
| author_sort | Ali H. Hassan |
| collection | DOAJ |
| description | Objective: To evaluate the cephalometric characteristics of mandibles of Saudi patients having impacted third molars and to compare them to those of patients having normally erupted third molars. Material and methods: One hundred and twenty-one Saudi adult subjects (59 females and 62 males; age: 20–40 years) were divided into two groups based on the status of the mandibular third molars: (1) impaction group and (2) normal group. Means and standard deviations of 21 cephalometric measurements related to mandibular geometry were measured and compared between the two groups using the unpaired t-test. Males and females in the impaction group were also compared with their equivalent subgroups in the normal group using the unpaired t-test. Results: Anteroposteriorly, space distal to second molar, ramal width and mandibular body length were significantly less in the impaction group than in the control group. In addition, posterior teeth were more upright in the impaction group. Vertically, posterior alveolar height was significantly less in the impaction group. The Y-axis was significantly increased in the impaction group.The significance of these measurements was variable between males and females. Conclusions: Third-molar impactions in the Saudis living in the Western region of Saudi Arabia were more likely to occur when inadequate retromolar space is present. This can be attributed to certain mandibular skeletal and dental features, among which the increased width of mandibular ramus and backward inclination of posterior teeth seem to be the most influencing factors in both sexes. Keywords: Third molar, Impaction, Etiology, Mandibular geometry, Cephalometrics, Saudi |
| format | Article |
| id | doaj-art-1963e26271ab4a058f9d35186477367d |
| institution | DOAJ |
| issn | 1013-9052 |
| language | English |
| publishDate | 2011-04-01 |
| publisher | Springer |
| record_format | Article |
| series | Saudi Dental Journal |
| spelling | doaj-art-1963e26271ab4a058f9d35186477367d2025-08-20T02:56:20ZengSpringerSaudi Dental Journal1013-90522011-04-01232738010.1016/j.sdentj.2010.11.001Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molarsAli H. Hassan0Address: Preventive Dental Sciences Department, Faculty of Dentistry, King Abdulaziz University, P.O. Box 80209, Jeddah 21589, Saudi Arabia. Tel.: +966 2 6401000x22267; fax: +966 2 6403316.; Faculty of Dentistry, King Abdulaziz University, Saudi Board in Orthodontics – Western Region, Saudi ArabiaObjective: To evaluate the cephalometric characteristics of mandibles of Saudi patients having impacted third molars and to compare them to those of patients having normally erupted third molars. Material and methods: One hundred and twenty-one Saudi adult subjects (59 females and 62 males; age: 20–40 years) were divided into two groups based on the status of the mandibular third molars: (1) impaction group and (2) normal group. Means and standard deviations of 21 cephalometric measurements related to mandibular geometry were measured and compared between the two groups using the unpaired t-test. Males and females in the impaction group were also compared with their equivalent subgroups in the normal group using the unpaired t-test. Results: Anteroposteriorly, space distal to second molar, ramal width and mandibular body length were significantly less in the impaction group than in the control group. In addition, posterior teeth were more upright in the impaction group. Vertically, posterior alveolar height was significantly less in the impaction group. The Y-axis was significantly increased in the impaction group.The significance of these measurements was variable between males and females. Conclusions: Third-molar impactions in the Saudis living in the Western region of Saudi Arabia were more likely to occur when inadequate retromolar space is present. This can be attributed to certain mandibular skeletal and dental features, among which the increased width of mandibular ramus and backward inclination of posterior teeth seem to be the most influencing factors in both sexes. Keywords: Third molar, Impaction, Etiology, Mandibular geometry, Cephalometrics, Saudihttp://www.sciencedirect.com/science/article/pii/S1013905210000969 |
| spellingShingle | Ali H. Hassan Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars Saudi Dental Journal |
| title | Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars |
| title_full | Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars |
| title_fullStr | Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars |
| title_full_unstemmed | Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars |
| title_short | Mandibular cephalometric characteristics of a Saudi sample of patients having impacted third molars |
| title_sort | mandibular cephalometric characteristics of a saudi sample of patients having impacted third molars |
| url | http://www.sciencedirect.com/science/article/pii/S1013905210000969 |
| work_keys_str_mv | AT alihhassan mandibularcephalometriccharacteristicsofasaudisampleofpatientshavingimpactedthirdmolars |