title: Effect of stabilization splint therapy on glenoid fossa remodeling in temporomandibular joint osteoarthritis.
abstract: OBJECTIVE
  The aim of this study was to evaluate, by CBCT superimposition, bone changes (cortical bone intactness, sclerosis and subchondral cyst) in the glenoid fossa related to stabilization splint (SS) therapy for temporomandibular joint osteoarthritis (TMJ OA) patients and to compare the effects for two groups, one that had undergone SS therapy and the other that had not.
  
  
  METHODS
  This case-control study included 36 TMJ OA patients, 10 that had undergone SS therapy (the SS group) compared with 26 that had not (the non-SS group). Osseous changes in the glenoid fossa were evaluated based on superimposed CBCT images before and after treatment.
  
  
  RESULTS
  Improvements ranging from 57.5 to 100% were achieved in cortical bone integrity, sclerosis, and subchondral cyst for both groups, SS and non-SS. However, there were no statistically significant difference between the two groups (p>0.05). The non-SS group showed a significant decrease in the distances from the point of inflexion and the lowest point of the articular eminence to the reference line (p<0.05). On the other hand, the SS group showed an increase for the point of inflexion. The other measures showed no statistically significant differences in distance before treatment and after treatment, even though the average distance after treatment showed an overall increasing tendency.
  
  
  CONCLUSIONS
  SS therapy relieved excessive loading on the TMJ in the TMD OA patients, who showed, via CBCT superimposition, less bone resorption in the glenoid fossa.
authors.affiliation: Department of Oral Medicine, School of Dentistry, Pusan National University, Busan, South Korea; Dental Research Institute, Pusan National University Dental Hospital, Geumoro 20, Mulgeumeup, Yangsan 626 787, South Korea.
authors.forename: Soo-Min
authors.initials: SM
authors.lastname: Ok
authors.affiliation: Department of Oral Medicine, School of Dentistry, Pusan National University, Busan, South Korea.
authors.forename: Sung-Hee
authors.initials: SH
authors.lastname: Jeong
authors.affiliation: Department of Oral Medicine, School of Dentistry, Pusan National University, Busan, South Korea.
authors.forename: Yong-Woo
authors.initials: YW
authors.lastname: Ahn
authors.affiliation: Dental Research Institute, Pusan National University Dental Hospital, Geumoro 20, Mulgeumeup, Yangsan 626 787, South Korea; Department of Orthodontics, Institute of Translational Dental Sciences, Pusan National University, Busan, South Korea; Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea. Electronic address: kimyongil@pusan.ac.kr.
authors.forename: Yong-Il
authors.initials: YI
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000328:Adult; D001862:Bone Resorption / Q000517:prevention & control; D016022:Case-Control Studies; D005260:Female; D061165:Glenoid Cavity / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D017090:Occlusal Splints; D010003:Osteoarthritis / Q000628:therapy*; D013705:Temporomandibular Joint Disorders / Q000534:rehabilitation / Q000628:therapy*; D014057:Tomography, X-Ray Computed; D055815:Young Adult
keywords: Articular eminence; Glenoid fossa; Osteoarthritis; Remodeling; TMJ