Marianna Guanaes Gomes Torres1, Iêda Margarida Crusoé-Rebello2, Marcos Rosário3, Maria Clara Albuquerque3, Paulo Sérgio Flores Campos2. 1. Researcher, Department of Oral and Maxillofacial Radiology, Federal University of Bahia, School of Dentistry, Salvador, BA, Brazil. Electronic address: torresmarianna@hotmail.com. 2. Professor, Department of Oral and Maxillofacial Radiology, Federal University of Bahia, School of Dentistry, Salvador, BA, Brazil. 3. Graduate student, Department of Oral and Maxillofacial Surgery, Federal University of Bahia, School of Dentistry, Salvador, BA, Brazil.
Abstract
OBJECTIVE: The aim of this study was to evaluate the relationship between the morphometric characteristics of the condyle and temporomandibular joint (TMJ) disk displacement. STUDY DESIGN: One hundred and nine individuals who underwent magnetic resonance imaging of the TMJ were evaluated. Linear (D1: condyle width; D2: condyle thickness) and angular (A1: horizontal condylar angle; A2: anterior condylar angle; A3: medial condylar angle) measurements were made. These measurements were associated with articular disk displacement, with and without reduction. RESULTS: There was statistically significant association between limited D1 and D2 and between A1 above and A1 below the mean and displacement of the joint disk. There was statistically significant association between A2 and anterior displacement of the disk. Furthermore, thicker condyles and/or condyles with smaller horizontal angles and/or with smaller medial angles were associated with articular disk reduction. CONCLUSIONS: The morphometric characteristics of the bony components of the TMJ are related to articular disk displacement and with its reduction or nonreduction.
OBJECTIVE: The aim of this study was to evaluate the relationship between the morphometric characteristics of the condyle and temporomandibular joint (TMJ) disk displacement. STUDY DESIGN: One hundred and nine individuals who underwent magnetic resonance imaging of the TMJ were evaluated. Linear (D1: condyle width; D2: condyle thickness) and angular (A1: horizontal condylar angle; A2: anterior condylar angle; A3: medial condylar angle) measurements were made. These measurements were associated with articular disk displacement, with and without reduction. RESULTS: There was statistically significant association between limited D1 and D2 and between A1 above and A1 below the mean and displacement of the joint disk. There was statistically significant association between A2 and anterior displacement of the disk. Furthermore, thicker condyles and/or condyles with smaller horizontal angles and/or with smaller medial angles were associated with articular disk reduction. CONCLUSIONS: The morphometric characteristics of the bony components of the TMJ are related to articular disk displacement and with its reduction or nonreduction.