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Year 2013, , 331 - 338, 01.11.2013
https://doi.org/10.7126/cdj.2012.1292

Abstract

The purpose of this study was to estimate the relative risk of mandibular angle fractures among people with a lower third molar compared with those without a lower third molar. For this purpose, database research was performed on a whole PUBMED/MEDLINE by using “mandibular third molars” and “angle fractures”. The data obtained from 9 articles that had a similar statistical analysis; and that included mandibular angle fractures and other mandibular fractures as acontrol group were evaluated statistically. In these 9 retrospective cohort studies, the sum of cases was 6466 and the sum of mandibular angle fractures was 1769. The analysis of articles shows a relative risk for a mandibula to fracture, comparing patients with and without third molars, ranging from 1,2 to 3.6. The estimated relative risk across the 9 studies was 2.14 (95% CI 1.92–2.39). The results obtained in this study suggest that the presence of lower third molar may double risk of an angle fracture of the mandible.

References

  • Ma'aita J, Alwrikat A. Is the mandibular third molar a risk factor for mandibular angle fracture? Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2000;89(2):143-146. de Matos FP, Arnez MF, Sverzut CE, Trivellato AE. A retrospective study of mandibular fracture in a 40-month period. Int J Oral Maxillofac Surg 2010;39(1):10-15.
  • Paza AO, Abuabara A, Passeri LA. Analysis of 115 mandibular angle fractures. J Oral Maxillofac Surg 2008;66(1):73-76.
  • Bormann KH, Wild S, Gellrich NC, et al. Five-year retrospective study of mandibular fractures in Freiburg, Germany: incidence, etiology, treatment, and complications. J Oral Maxillofac Surg 2009;67(6):1251125
  • Patrocinio LG, Patrocinio JA, Borba BH, et al. Mandibular fracture: analysis of 293 patients treated in the Hospital of Clinics, Federal University of Uberlandia. Braz J Otorhinolaryngol 2005;71(5):56056
  • Brasileiro BF, Passeri LA. Epidemiological analysis of maxillofacial fractures in Brazil: a 5year prospective study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006;102(1):28-34.
  • Azevedo AB, Trent RB, Ellis A. Population-based analysis of 10,766 hospitalizations for mandibular fractures in California, 1991 to 1993. J Trauma 1998;45(6):1084-1087. Bradley JC. A radiological investigation into the age changes of the inferior dental artery. Br J Oral Surg 1975;13(1):82-90.
  • Halazonetis JA. The 'weak' regions of the mandible. Br J Oral Surg 1968;6(1):37-48.
  • Fuselier JC, Ellis EE, 3rd, Dodson TB. Do mandibular third molars alter the risk of angle fracture? J Oral Maxillofac Surg 2002;60(5):5145
  • Meisami T, Sojat A, Sandor GK, Lawrence HP, Clokie CM. Impacted third molars and risk of angle fracture. Int J Oral Maxillofac Surg 2002;31(2):140-144.
  • Tevepaugh DB, Dodson TB. Are mandibular third molars a risk factor for angle fractures? A retrospective cohort study. J Oral Maxillofac Surg 1995;53(6):646-9; discussion 49-50.
  • Thangavelu A, Yoganandha R, Vaidhyanathan A. Impact of impacted mandibular third molars in mandibular angle and condylar fractures. Int J Oral Maxillofac Surg 2010;39(2):136-139.
  • Duan DH, Zhang Y. 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 2008;37(1):25-28.
  • Halmos DR, Ellis E, 3rd, Dodson TB. Mandibular third molars and angle fractures. J Oral Maxillofac Surg 2004;62(9):1076-1081.
  • Iida S, Hassfeld S, Reuther T, Nomura K, Muhling J. Relationship between the risk of mandibular angle fractures and the status of incompletely erupted mandibular third molars. J Craniomaxillofac Surg 2005;33(3):158-163.
  • Zhu SJ, Choi BH, Kim HJ, et al. Relationship between the presence of unerupted mandibular third molars and fractures of the mandibular condyle. Int J Oral Maxillofac Surg 2005;34(4):382-5.
  • Amaratunga NA. A comparative study of the clinical aspects of edentulous and dentulous mandibular fractures. J Oral Maxillofac Surg 1988;46(1):3-5.
  • Reitzik M, Lownie JF, Cleaton-jones P, Austin J. Experimental fractures of monkey mandibles. Int J Oral Surg 1978;7(2):100-103.
  • Ellis E, 3rd, Moos KF, elAttar A. Ten years of mandibular fractures: an analysis of 2,137 cases. Oral Surg Oral Med Oral Pathol 1985;59(2):120-129.
  • Iida S, Nomura K, Okura M, Kogo M. Influence of the incompletely erupted lower third molar on mandibular angle and condylar fractures. J Trauma 2004;57(3):6136
  • Inaoka SD, Carneiro SC, Vasconcelos BC, Leal J, Porto GG. Relationship between mandibular fracture and impacted lower third molar. Med Oral Patol Oral Cir Bucal 2009;14(7):E349-354.
  • Schwimmer A, Stern R, Kritchman D. Impacted third molars: a contributing factor in mandibular fractures in contact sports. Am J Sports Med 1983;11(4):262-266.
  • Yamada T, Sawaki Y, Tohnai I, Takeuchi M, Ueda M. A study of sports-related mandibular angle fracture: relation to the position of the third molars. Scand J Med Sci Sports 1998;8(2):116-119.
  • Safdar N, Meechan JG. 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 1995;79(6):680-4.
  • Lee JT, Dodson TB. The effect of mandibular third molar presence and position on the risk of an angle fracture. J Oral Maxillofac Surg 2000;58(4):394-398; discussion 99.
  • Tankersly K, Abubaker AO. The relationship between the presence of mandibular third molars and mandibular angle fractures. J Dent Res 1995;74 AADR (Abstract #550):80.
  • Ugboko VI, Oginni FO, Owotade FJ. An investigation into the relationship between mandibular third molars and angle fractures in Nigerians. Br J Oral Maxillofac Surg 2000;38(5):427-429.
  • Bezerra TP, Studart-Soares EC, Pita-Neto IC, Costa FW, Batista SH. Do third molars weaken the mandibular angle? Med Oral Patol Oral Cir Bucal 2010.
  • Hanson BP, Cummings P, Rivara FP, John MT. The association of third molars with mandibular angle fractures: a meta-analysis. J Can Dent Assoc 2004;70(1):39-43.
  • Sakr K, Farag IA, Zeitoun IM. Review of 509 mandibular fractures treated at the University Hospital, Alexandria, Egypt. Br J Oral Maxillofac Surg 2006;44(2):1071
  • Metin M, Sener I, Tek M. Impacted teeth and mandibular fracture. Eur J Dent 2007;1(1):18-20.
  • Takada H, Abe S, Tamatsu Y, et al. Three-dimensional bone microstructures of the mandibular angle using micro-CT and finite element analysis: relationship between partially impacted mandibular third molars and angle fractures. Dent Traumatol 2006;22(1):18-24.

Mandibular üçüncü molarların angulus kırığı oluşumu üzerine etkisi

Year 2013, , 331 - 338, 01.11.2013
https://doi.org/10.7126/cdj.2012.1292

Abstract

The purpose of this study was to estimate the relative risk of mandibular angle fractures among people with a lower third molar compared with those without a lower third molar. For this purpose, database research was performed on a whole PUBMED/MEDLINE by using key words “mandibular third molars” and “angle fractures”. The data obtained from 9 articles that had a similar statistical analysis; and that included mandibular angle fractures and other mandibular fractures as a control group were evaluated statistically. In these 9 retrospective cohort studies, the sum of cases was 6466 and the sum of mandibular angle fractures was 1769. The analysis of articles shows a relative risk for a mandibula to fracture, comparing patients with and without third molars, ranging from 1,2 to 3.6. The estimated relative risk across the 9 studies was 2.14 (95% CI 1.92–2.39). The results obtained in this study suggest that the presence of lower third molar may double risk of an angle fracture of the mandible.

Keywords: Mandibular angle fractures, mandibular third molars, relative risk.

 

ÖZET

Bu makalenin amacı, mandibular 3. molar dişe sahip olan ve olmayan bireylerde mandibula angulus kırığı oluşma riskinin belirlenmesidir. Bu amaçla, “mandibular third molars” ve “angle fractures” anahtar kelimeleri kullanılarak PUBMED/MEDLINE veri tabanında literatür taraması gerçekleştirildi. Birbirine benzer istatiksel analiz yapmış ve mandibula angulus kırıkları ile beraber kontrol grubu olarak kabul edilebilecek şekilde diğer mandibula kırıklarını çalışmalarına dâhil etmiş 9 adet makaleden elde edilen veriler istatiksel olarak değerlendirildi. Bu makalelerdeki retrospektif kohort çalışmadaki vaka sayısı 6466 ve mandibula angulus kırığı sayısı 1769’idi. Çalışmalardaki rölatif risk değerleri, 1,2 ile 3,6 arasında hesaplandı. Ayrıca rölatif risk ortalamasının 2,14 olduğu belirlendi  (%95 güven aralığı 1,92–2,39). Sonuç olarak mandibular 3. molar dişe sahip olan bireylerin olmayanlara göre ortalama 2 kat daha fazla mandibula angulus kırığı oluşma riskine sahip oldukları bulundu.

References

  • Ma'aita J, Alwrikat A. Is the mandibular third molar a risk factor for mandibular angle fracture? Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2000;89(2):143-146. de Matos FP, Arnez MF, Sverzut CE, Trivellato AE. A retrospective study of mandibular fracture in a 40-month period. Int J Oral Maxillofac Surg 2010;39(1):10-15.
  • Paza AO, Abuabara A, Passeri LA. Analysis of 115 mandibular angle fractures. J Oral Maxillofac Surg 2008;66(1):73-76.
  • Bormann KH, Wild S, Gellrich NC, et al. Five-year retrospective study of mandibular fractures in Freiburg, Germany: incidence, etiology, treatment, and complications. J Oral Maxillofac Surg 2009;67(6):1251125
  • Patrocinio LG, Patrocinio JA, Borba BH, et al. Mandibular fracture: analysis of 293 patients treated in the Hospital of Clinics, Federal University of Uberlandia. Braz J Otorhinolaryngol 2005;71(5):56056
  • Brasileiro BF, Passeri LA. Epidemiological analysis of maxillofacial fractures in Brazil: a 5year prospective study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006;102(1):28-34.
  • Azevedo AB, Trent RB, Ellis A. Population-based analysis of 10,766 hospitalizations for mandibular fractures in California, 1991 to 1993. J Trauma 1998;45(6):1084-1087. Bradley JC. A radiological investigation into the age changes of the inferior dental artery. Br J Oral Surg 1975;13(1):82-90.
  • Halazonetis JA. The 'weak' regions of the mandible. Br J Oral Surg 1968;6(1):37-48.
  • Fuselier JC, Ellis EE, 3rd, Dodson TB. Do mandibular third molars alter the risk of angle fracture? J Oral Maxillofac Surg 2002;60(5):5145
  • Meisami T, Sojat A, Sandor GK, Lawrence HP, Clokie CM. Impacted third molars and risk of angle fracture. Int J Oral Maxillofac Surg 2002;31(2):140-144.
  • Tevepaugh DB, Dodson TB. Are mandibular third molars a risk factor for angle fractures? A retrospective cohort study. J Oral Maxillofac Surg 1995;53(6):646-9; discussion 49-50.
  • Thangavelu A, Yoganandha R, Vaidhyanathan A. Impact of impacted mandibular third molars in mandibular angle and condylar fractures. Int J Oral Maxillofac Surg 2010;39(2):136-139.
  • Duan DH, Zhang Y. 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 2008;37(1):25-28.
  • Halmos DR, Ellis E, 3rd, Dodson TB. Mandibular third molars and angle fractures. J Oral Maxillofac Surg 2004;62(9):1076-1081.
  • Iida S, Hassfeld S, Reuther T, Nomura K, Muhling J. Relationship between the risk of mandibular angle fractures and the status of incompletely erupted mandibular third molars. J Craniomaxillofac Surg 2005;33(3):158-163.
  • Zhu SJ, Choi BH, Kim HJ, et al. Relationship between the presence of unerupted mandibular third molars and fractures of the mandibular condyle. Int J Oral Maxillofac Surg 2005;34(4):382-5.
  • Amaratunga NA. A comparative study of the clinical aspects of edentulous and dentulous mandibular fractures. J Oral Maxillofac Surg 1988;46(1):3-5.
  • Reitzik M, Lownie JF, Cleaton-jones P, Austin J. Experimental fractures of monkey mandibles. Int J Oral Surg 1978;7(2):100-103.
  • Ellis E, 3rd, Moos KF, elAttar A. Ten years of mandibular fractures: an analysis of 2,137 cases. Oral Surg Oral Med Oral Pathol 1985;59(2):120-129.
  • Iida S, Nomura K, Okura M, Kogo M. Influence of the incompletely erupted lower third molar on mandibular angle and condylar fractures. J Trauma 2004;57(3):6136
  • Inaoka SD, Carneiro SC, Vasconcelos BC, Leal J, Porto GG. Relationship between mandibular fracture and impacted lower third molar. Med Oral Patol Oral Cir Bucal 2009;14(7):E349-354.
  • Schwimmer A, Stern R, Kritchman D. Impacted third molars: a contributing factor in mandibular fractures in contact sports. Am J Sports Med 1983;11(4):262-266.
  • Yamada T, Sawaki Y, Tohnai I, Takeuchi M, Ueda M. A study of sports-related mandibular angle fracture: relation to the position of the third molars. Scand J Med Sci Sports 1998;8(2):116-119.
  • Safdar N, Meechan JG. 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 1995;79(6):680-4.
  • Lee JT, Dodson TB. The effect of mandibular third molar presence and position on the risk of an angle fracture. J Oral Maxillofac Surg 2000;58(4):394-398; discussion 99.
  • Tankersly K, Abubaker AO. The relationship between the presence of mandibular third molars and mandibular angle fractures. J Dent Res 1995;74 AADR (Abstract #550):80.
  • Ugboko VI, Oginni FO, Owotade FJ. An investigation into the relationship between mandibular third molars and angle fractures in Nigerians. Br J Oral Maxillofac Surg 2000;38(5):427-429.
  • Bezerra TP, Studart-Soares EC, Pita-Neto IC, Costa FW, Batista SH. Do third molars weaken the mandibular angle? Med Oral Patol Oral Cir Bucal 2010.
  • Hanson BP, Cummings P, Rivara FP, John MT. The association of third molars with mandibular angle fractures: a meta-analysis. J Can Dent Assoc 2004;70(1):39-43.
  • Sakr K, Farag IA, Zeitoun IM. Review of 509 mandibular fractures treated at the University Hospital, Alexandria, Egypt. Br J Oral Maxillofac Surg 2006;44(2):1071
  • Metin M, Sener I, Tek M. Impacted teeth and mandibular fracture. Eur J Dent 2007;1(1):18-20.
  • Takada H, Abe S, Tamatsu Y, et al. Three-dimensional bone microstructures of the mandibular angle using micro-CT and finite element analysis: relationship between partially impacted mandibular third molars and angle fractures. Dent Traumatol 2006;22(1):18-24.
There are 31 citations in total.

Details

Primary Language Turkish
Journal Section Review
Authors

İsmail Akkaş

Sinan Tozoğlu

Fatih Özan

Publication Date November 1, 2013
Submission Date January 9, 2012
Published in Issue Year 2013

Cite

EndNote Akkaş İ, Tozoğlu S, Özan F (November 1, 2013) Mandibular üçüncü molarların angulus kırığı oluşumu üzerine etkisi. Cumhuriyet Dental Journal 16 4 331–338.

Cumhuriyet Dental Journal (Cumhuriyet Dent J, CDJ) is the official publication of Cumhuriyet University Faculty of Dentistry. CDJ is an international journal dedicated to the latest advancement of dentistry. The aim of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of dentistry. First issue of the Journal of Cumhuriyet University Faculty of Dentistry was published in 1998. In 2010, journal's name was changed as Cumhuriyet Dental Journal. Journal’s publication language is English.


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