Risk assessment and analysis of degenerative joint diseases in patients with temporomandibular disorder diseases under diffe-rent joint disc states
Objective To investigate the risk and severity of degenerative joint diseases(DJD)in patients with temporomandibular disorder diseases(TMD)under different joint disc states.Methods A total of 156 temporomandibular joints in 78 TMD patients were divided into three groups based on MRI images:normal disc position,anterior disc displacement with reduction(ADDR)and anterior disc displacement without reduction(ADDNR).CBCT or CT images were used to diagnose DJD and assess the severity of condylar bone changes.The OR value of DJD under different joint disc states was estimated by Logistic regression,and the regression coefficient of the severity of condylar bone changes under different joint disc states was estimated by ordinary least square regression.Results Compared with the normal disc position,the OR value of DJD in ADDR group and ADDNR group were 4.652(P＜0.001),16.739(P＜0.001),respectively.The regression coefficient for condylar erosion in the ADDR group was 0.646(P＜0.001).The regression coefficients for condylar cysts,condylar erosion,condylar osteophytes,condylar flattening,condylar bone sclerosis of ADDNR group were 0.241(P＜0.05),1.486(P＜0.001),0.759(P＜0.001),0.566(P＜0.001),0.381(P＜0.05).Conclusion ADDR and ADDNR are associated with the occurrence of DJD in TMD patients,and the risk of DJD is higher in ADDNR than in ADDR.The degree of condylar bone changes in ADDNR is more serious than that of ADDR.
NETL
NSTL
万方数据
维普
