title: Intraosseous benign lesions of the jaws: a radiographic study.
abstract: BACKGROUND
  Benign maxillo-mandibular tumors and cysts, which are relatively common findings on radiographs, namely the ubiquitous panoramic view, have to be dealt with by dentists on a daily basis.
  
  
  OBJECTIVE
  The aim of this study is to evaluate the panoramic radiographic findings pertaining to benign and tumoral lesions in the maxilla and mandible.
  
  
  METHODS
  Applying a case series method, panoramic images of 61 patients with cysts, benign tumors and tumor-like lesions in the jaws who were referred to Hamedan dental school between 2009 and 2011 were evaluated by two radiologists. They were both blind to histopathological results as well as the objectives of our study. Lesions were assessed based on their location, periphery, internal structure and impaction on the surrounding structures. Then the obtained data were analyzed using descriptive tables.
  
  
  RESULTS
  Cysts were mostly more common in men despite the equal propensity of both genders to benign tumors. In contrast, women showed a higher frequency of tumor-like lesions. The most common site of involvement was the posterior mandible, with peri-apical tooth lesions as the most prevalent dental association. Radiographically, what we most encountered was unilocular radiolucency pertaining to cysts and benign tumors; nevertheless, tumor-like lesions tended to present with a well-defined radiopacity.
  
  
  CONCLUSIONS
  Despite its known shortcomings, like every other diagnostic tool, panoramic radiography can contribute to the early detection of maxillary/mandibular lesions that in turn enable the dentist to devise an appropriate treatment plan.
authors.affiliation: Dental Research Center, Department of Oral and Maxillofacial Radiology, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Adineh
authors.initials: A
authors.lastname: Javadian Langaroodi
authors.affiliation: Department of Oral and Maxillofacial Radiology, School of Dentistry, Hamedan University of Medical Sciences, Hamedan, Iran.
authors.forename: Sima Sadat
authors.initials: SS
authors.lastname: Lari
authors.affiliation: Department of Oral and Maxillofacial Radiology, School of Dentistry, Hamedan University of Medical Sciences, Hamedan, Iran.
authors.forename: Abbas
authors.initials: A
authors.lastname: Shokri
authors.affiliation: Dental Material Research Center, Department of Oral and Maxillofacial Radiology, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Seyed Hossein
authors.initials: SH
authors.lastname: Hoseini Zarch
authors.affiliation: Department of Oral and Maxillofacial Pathology , School of Dentistry, Hamedan University of Medical Sciences, Hamedan, Iran.
authors.forename: Shokofeh
authors.initials: S
authors.lastname: Jamshidi
authors.affiliation: Private Dental Practice, Hamedan, Iran.
authors.forename: Peyman
authors.initials: P
authors.lastname: Akbari
keywords: Cystic Lesions; Maxilla, Mandible; Panoramic Radiography; Tumoral Lesions