OBJECTIVE: The aim of this study was to evaluate osseous changes accompanying anterior repositioning splint (ARS) therapy in patients with temporomandibular joint disk displacement. STUDY DESIGN: Cone-beam computerized tomography (CBCT) data of 36 patients with intermittent or permanent closed-lock were used; 23 patients with permanent closed-lock had their displaced disks physically reduced by mandibular manipulation before ARS therapy. CBCT was performed before and ≈ 6 months after ARS therapy. The presence and location of "double contour" images suggesting condylar bone remodeling were statistically analyzed. RESULTS: The "double contour" images after ARS therapy were observed in ≈ 80% of patients, more frequently in joints with signs of displaced disks. The "double contour" appeared more often on the posterior bevel as well as the medial and middle part of condyles (P < .01). CONCLUSIONS: ARS therapy can facilitate regenerative remodeling of condyles. CBCT is a useful tool for monitoring osseous changes in condyles.
OBJECTIVE: The aim of this study was to evaluate osseous changes accompanying anterior repositioning splint (ARS) therapy in patients with temporomandibular joint disk displacement. STUDY DESIGN: Cone-beam computerized tomography (CBCT) data of 36 patients with intermittent or permanent closed-lock were used; 23 patients with permanent closed-lock had their displaced disks physically reduced by mandibular manipulation before ARS therapy. CBCT was performed before and ≈ 6 months after ARS therapy. The presence and location of "double contour" images suggesting condylar bone remodeling were statistically analyzed. RESULTS: The "double contour" images after ARS therapy were observed in ≈ 80% of patients, more frequently in joints with signs of displaced disks. The "double contour" appeared more often on the posterior bevel as well as the medial and middle part of condyles (P < .01). CONCLUSIONS: ARS therapy can facilitate regenerative remodeling of condyles. CBCT is a useful tool for monitoring osseous changes in condyles.
Authors: J Schilling; L C R Gomes; E Benavides; T Nguyen; B Paniagua; M Styner; V Boen; J R Gonçalves; L H S Cevidanes Journal: Dentomaxillofac Radiol Date: 2013-10-29 Impact factor: 2.419