Relationship between mandibular condyle and angle fractures and the presence of mandibular third molars
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Objectives: We retrospectively evaluated the impact of mandibular third molars on the occurrence of angle and condyle fractures.Materials and Methods: This was a retrospective investigation using patient records and radiographs. The sample set consisted of 440 patients with mandibular fractures. Eruption space, depth and angulation of the third molar were measured.Results: Of the 144 angle fracture patients, 130 patients had third molars and 14 patients did not. The ratio of angle fractures when a third molar was present (1.26 : 1) was greater than when no third molar was present (0.19 : 1; odds ratio, 6.58; P<0.001). Of the 141 condyle fractures patients, the third molar was present in 84 patients and absent in 57 patients. The ratio of condyle fractures when a third molar was present (0.56 : 1) was lower than when no third molar was present (1.90 : 1; odds ratio, 0.30; P<0.001).Conclusion: The increased ratio of angle fractures with third molars and the ratio of condyle fractures without a third molar were statistically signif-cant. The occurrence of angle and condyle fractures was more affected by the continuity of the cortical bone at the angle than by the depth of a third molar. These results demonstrate that a third molar can be a determining factor in angle and condyle fractures.
Abstract
Objectives: We retrospectively evaluated the impact of mandibular third molars on the occurrence of angle and condyle fractures.Materials and Methods: This was a retrospective investigation using patient records and radiographs. The sample set consisted of 440 patients with mandibular fractures. Eruption space, depth and angulation of the third molar were measured.Results: Of the 144 angle fracture patients, 130 patients had third molars and 14 patients did not. The ratio of angle fractures when a third molar was present (1.26 : 1) was greater than when no third molar was present (0.19 : 1; odds ratio, 6.58; P<0.001). Of the 141 condyle fractures patients, the third molar was present in 84 patients and absent in 57 patients. The ratio of condyle fractures when a third molar was present (0.56 : 1) was lower than when no third molar was present (1.90 : 1; odds ratio, 0.30; P<0.001).Conclusion: The increased ratio of angle fractures with third molars and the ratio of condyle fractures without a third molar were statistically signif-cant. The occurrence of angle and condyle fractures was more affected by the continuity of the cortical bone at the angle than by the depth of a third molar. These results demonstrate that a third molar can be a determining factor in angle and condyle fractures.
참고문헌 (35)
- Fonseca RJ, "Oral and maxillofacial trauma", pp.2013, Elsevier
- Gassner R, "Cranio-maxillofacial trauma: a 10 year review of 9,543 cases with 21,067 injuries", J Craniomaxillofac Surg, 31, pp.51~61 (2003)
- Tanaka N, "Aetiology of maxillofacial fracture", Br J Oral Maxillofac Surg, 32, pp.19~23 (1994)
- Papel ID, "Facial plastic and reconstructive surgery", pp.769~790 (2002), Thieme
- Rudderman RH, "Biomechanics of the facial skeleton", Clin Plast Surg, 19, pp.11~29 (1992)
- Reitzik M, "Yield point of monkey mandible", J Dent Res, 60, pp.1993~1995 (1981)
- Huelke DF, "Mechanics in the production of mandibular fractures: strain-gauge measurements of impacts to the chin", J Dent Res, 43, pp.437~446 (1964)
- 조세종, "턱관절을 포함한 하악골의 충격시 골절 발생기전에 대한 연구", Maxillofacial Plastic Reconstructive Surgery, 24(6), pp.470~478 (2002), 대한악안면성형재건외과학회
- Olson RA, "Fractures of the mandible: a review of 580 cases", J Oral Maxillofac Surg, 40, pp.23~28 (1982)
- Ogundare BO, "Pattern of mandibular fractures in an urban major trauma center", J Oral Maxillofac Surg, 61, pp.713~718 (2003)
- Safdar N, "Relationship between fractures of the mandibular angle and the presence and state of eruption of the lower third molar", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 79, pp.680~684 (1995)
- Tevepaugh DB, "Are mandibular third molars a risk factor for angle fractures? A retrospective cohort study", J Oral Maxillofac Surg, 53, pp.646~649 (1995)
- Lee JT, "The effect of mandibular third molar presence and position on the risk of an angle fracture", J Oral Maxillofac Surg, 58, pp.394~398 (2000)
- Schwimmer A, "Impacted third molars: a contributing factor in mandibular fractures in contact sports", Am J Sports Med, 11, pp.262~266 (1983)
- Yamada T, "A study of sports-related mandibular angle fracture: relation to the position of the third molars", Scand J Med Sci Sports, 8, pp.116~119 (1998)
- Meisami T, "Impacted third molars and risk of angle fracture", Int J Oral Maxillofac Surg, 31, pp.140~144 (2002)
- Zhu SJ, "Relationship between the presence of unerupted mandibular third molars and fractures of the mandibular condyle", Int J Oral Maxillofac Surg, 34, pp.382~385 (2005)
- Duan DH, "Does the presence of mandibular third molars increase the risk of angle fracture and simultaneously decrease the risk of condylar fracture?", Int J Oral Maxillofac Surg, 37, pp.25~28 (2008)
- Inaoka SD, "Relationship between mandibular fracture and impacted lower third molar", Med Oral Patol Oral Cir Bucal, 14, pp.E349~E354 (2009)
- Thangavelu A, "Impact of impacted mandibular third molars in mandibular angle and condylar fractures", Int J Oral Maxillofac Surg, 39, pp.136~139 (2010)
- Kelly DE, "A survey of facial fractures: Bellevue Hospital, 1948-1974", J Oral Surg, 33, pp.146~149 (1975)
- Pell G, "Impacted mandibular third molars: classification and modified techniques for removal", Dent Dig, 39, pp.330~ (1933)
- Shiller WR, "Positional changes in mesio-angular impacted mandibular third molars during a year", J Am Dent Assoc, 99, pp.460~464 (1979)
- Ellis E 3rd, "Ten years of mandibular fractures:an analysis of 2,137 cases", Oral Surg Oral Med Oral Pathol, 59, pp.120~129 (1985)
- Chidzonga MM, "Mandibular fractures, analysis of 541 cases", Cent Afr J Med, 36, pp.97~103 (1990)
- 조성필, "하악 제3대구치가 하악 우각부 골절에 미치는 영향", Maxillofacial Plastic Reconstructive Surgery, 28(1), pp.49~57 (2006), 대한악안면성형재건외과학회
- Bezerra TP, "Do erupted third molars weaken the mandibular angle after trauma to the chin region? A 3D finite element study", Int J Oral Maxillofac Surg, 42, pp.474~480 (2013)
- Iida S, "Relationship between the risk of mandibular angle fractures and the status of incompletely erupted mandibular third molars", J Craniomaxillofac Surg, 33, pp.158~163 (2005)
- Fuselier JC, "Do mandibular third molars alter the risk of angle fracture?", J Oral Maxillofac Surg, 60, pp.514~518 (2002)
- Kober C, "Stress analysis of the human mandible in standard trauma situations with numerical simulation", Mund Kiefer Gesichtschir, 5, pp.114~119 (2001)
- Lamphier J, "Complications of mandibular fractures in an urban teaching center", J Oral Maxillofac Surg, 61, pp.745~749 (2003)
- Feller KU, "Analysis of complications in fractures of the mandibular angle--a study with finite element computation and evaluation of data of 277 patients", J Craniomaxillofac Surg, 31, pp.290~295 (2003)
- Zide MF, "Indications for open reduction of mandibular condyle fractures", J Oral Maxillofac Surg, 41, pp.89~98 (1983)
- Haug RH, "A biomechanical evaluation of mandibular condyle fracture plating techniques", J Oral Maxillofac Surg, 60, pp.73~80 (2002)
- Ellis E 3rd, "Complications of mandibular condyle fractures", Int J Oral Maxillofac Surg, 27, pp.255~257 (1998)