title: Impacted mandibular third molars and their influence on mandibular angle and condyle fractures--a retrospective study.
abstract: BACKGROUND
  Previous retrospective analyses prove that impacted mandibular third molars (M3s) increase the risk of angle fractures and decrease the risk of concomitant fractures to the condyle.
  
  
  METHODS
  A retrospective cohort was designed for patients reported to the Department of Oral and Maxillofacial Surgery from January 2011 till June 2013. The study variables are presence or absence of third molar, if it is present, their position, classified using the Pell and Gregory system; angulation, classified using Shiller's method. The outcome variables were angle and condyle fractures.
  
  
  METHODS
  Hospital records and panoramic radiographs were used to determine and classify these variables. The study sample comprised of 118 mandibular angle and condyle fractures in 110 patients. Database was constructed and analysed using SPSS version 10.0.
  
  
  CONCLUSIONS
  This present retrospective study concluded that the presence of impacted third molar predisposes the angle to fracture and reduces the risk of a concomitant condylar fracture. However absence of impacted third molar increases the risk of condylar fracture. The highest incidence of angle fracture was observed in position A impacted mandibular third molars. And there is no significant relationship, concerning ramus position and angulation of impacted mandibular third molars with the angle fracture.
authors: Department of Oral and Maxillofacial Surgery (Head: Prof. Rajasekhar Gaddipati), Mamata Dental College & Hospital, Giriprasad Nagar, Khammam, Andhra Pradesh 507002, India. Electronic address: drrajasekharg@gmail.com.
authors: Rajasekhar
authors: R
authors: Gaddipati
authors: Department of Oral and Maxillofacial Surgery (Head: Prof. Rajasekhar Gaddipati), Mamata Dental College & Hospital, Giriprasad Nagar, Khammam, Andhra Pradesh 507002, India. Electronic address: drsudhir_007@hotmail.com.
authors: Sudhir
authors: S
authors: Ramisetty
authors: Department of Oral and Maxillofacial Surgery (Head: Prof. Rajasekhar Gaddipati), Mamata Dental College & Hospital, Giriprasad Nagar, Khammam, Andhra Pradesh 507002, India. Electronic address: vura_gopal@yahoo.co.uk.
authors: Nandagopal
authors: N
authors: Vura
authors: Department of Oral and Maxillofacial Surgery (Head: Prof. Rajasekhar Gaddipati), Mamata Dental College & Hospital, Giriprasad Nagar, Khammam, Andhra Pradesh 507002, India. Electronic address: rajivreddy_dr291@yahoo.co.in.
authors: Rajeev Reddy
authors: RR
authors: Kanduri
authors: Department of Oral and Maxillofacial Surgery (Head: Prof. Rajasekhar Gaddipati), Mamata Dental College & Hospital, Giriprasad Nagar, Khammam, Andhra Pradesh 507002, India. Electronic address: vinay_gunda777@yahoo.co.in.
authors: Vinay Kumar
authors: VK
authors: Gunda
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data; D000293:Adolescent; D000328:Adult; D002508:Cephalometry / Q000706:statistics & numerical data; D015331:Cohort Studies; D006801:Humans; D015994:Incidence; D007194:India / Q000453:epidemiology; D008335:Mandibular Condyle / Q000293:injuries*; D008337:Mandibular Fractures / Q000453:epidemiology*; D008875:Middle Aged; D008964:Molar, Third / Q000473:pathology*; D011862:Radiography, Panoramic / Q000706:statistics & numerical data; D012189:Retrospective Studies; D012307:Risk Factors; D014078:Tooth Eruption; D014095:Tooth, Impacted / Q000145:classification / Q000453:epidemiology*; D014097:Tooth, Unerupted / Q000453:epidemiology; D055815:Young Adult
keywords: Angle; Condyle; Impacted third molar; Mandible