Abstract:
:Previous studies have shown that impacted mandibular third molars (M3s) increase the risk of mandibular angle fractures and decrease the risk of mandibular condylar fractures. This study attempted to verify these relationships and identify the influence of mechanism and cause of injury. The incidence of fractures was compared in 700 patients with and without impacted M3s. The results showed that patients with impacted M3s had a lower risk of condylar fracture and a higher risk of angle fracture than those without impacted M3s when injured by moderate trauma force. Such relationships could not have been identified when patients were injured by high trauma force. Patients with impacted M3s had a higher risk of angle fracture than those without impacted M3s no matter how they were injured (assault, fall, motor vehicle accident, other). When patients were injured by assault or in a motor vehicle accident, those with impacted M3s were less likely to have a condylar fracture. M3s were a dominant factor for developing a mandibular angle fracture and preventing condylar fracture. The risk of angle fracture was much more affected by impacted M3s than that of condylar fracture, when injury mechanism and cause were taken into consideration.
journal_name
Int J Oral Maxillofac Surgjournal_title
International journal of oral and maxillofacial surgeryauthors
Duan DH,Zhang Ydoi
10.1016/j.ijom.2007.07.010subject
Has Abstractpub_date
2008-01-01 00:00:00pages
25-8issue
1eissn
0901-5027issn
1399-0020pii
S0901-5027(07)00259-7journal_volume
37pub_type
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章,评审
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1016/j.ijom.2007.01.015
更新日期:2007-07-01 00:00:00
abstract::In 210 cases of oral cancer, 38 (17.6%) second primary tumours were found. Males had a higher chance of developing a second primary than females (21.4% versus 12%). The difference was not statistically significant (p = 0.11). When the index tumour was in the lower part of the oral cavity (floor of mouth, retromolar tr...
journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1016/j.ijom.2013.01.023
更新日期:2013-07-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 临床试验,杂志文章,随机对照试验,评审
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更新日期:2002-02-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1016/j.ijom.2007.05.019
更新日期:2007-12-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1054/ijom.2002.0374
更新日期:2003-08-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1054/ijom.2001.0059
更新日期:2001-08-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
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更新日期:1990-10-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1016/s0901-5027(05)80326-1
更新日期:1994-02-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1016/j.ijom.2006.03.010
更新日期:2006-08-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
doi:10.1016/j.ijom.2014.05.013
更新日期:2014-10-01 00:00:00
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
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journal_title:International journal of oral and maxillofacial surgery
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journal_title:International journal of oral and maxillofacial surgery
pub_type: 杂志文章
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更新日期:1990-12-01 00:00:00
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