title: Can pterygoid plate asymmetry be linked to temporomandibular joint disorders?
abstract: OBJECTIVE
  This study was performed to evaluate the relationship between pterygoid plate asymmetry and temporomandibular joint disorders.
  
  
  METHODS
  Cone-beam computed tomography (CBCT) images of 60 patients with temporomandibular disorders (TMD) involving pain were analyzed and compared with images of 60 age- and gender-matched controls. Three observers performed linear measurements of the lateral pterygoid plates.
  
  
  RESULTS
  Statistically significant differences were found between measurements of the lateral pterygoid plates on the site that had pain and the contralateral site (p<0.05). The average length of the lateral pterygoid plates (LPPs) in patients with TMD was 17.01±3.64 mm on the right side and 16.21±3.51 mm on the left side, and in patients without TMD, it was 11.86±1.97 mm on the right side and 11.98±1.85 mm on the left side. Statistically significant differences in the LPP length, measured on CBCT, were found between patients with and without TMD (p<0.05). The inter-examiner reliability obtained in this study was very high for all the examiners (0.99, 95% confidence interval: 0.98-0.99).
  
  
  CONCLUSIONS
  Within the limits of the present study, CBCT lateral pterygoid plate measurements at the side with TMD were found to be significantly different from those on the side without TMD. More research is needed to explore potential etiological correlations and implications for treatment.
authors.affiliation: OIC, OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Belgium.
authors.forename: Maria Eugenia
authors.initials: ME
authors.lastname: Guerrero
authors.affiliation: Oral and Maxillofacial Radiology, Post-Graduate School, Universidad Privada Cayetano Heredia, Peru.
authors.forename: Jorge
authors.initials: J
authors.lastname: Beltran
authors.affiliation: Stomatology and Maxillofacial Surgery, Department of Oral Health Sciences, KU Leuven, Belgium.
authors.forename: Antoon
authors.initials: A
authors.lastname: de Laat
authors.affiliation: OIC, OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Belgium.
authors.forename: Reinhilde
authors.initials: R
authors.lastname: Jacobs
keywords: Cone-Beam Computed Tomography; Facial Pain; Sphenoid Bone; Temporomandibular Joint Disorders