O.R Result of   exams With manifestations N2 = 357 Without manifestations N1 = 43 Oral and facial manifestations Related Factors
--- P<٠/3 189(53%) 27 (62.8%) Less than  34 years     age
168(47%) 16 (37.2%) Over 34 years
--- P<٠/ 9 256(71.7%) 36 (83.7%) Female  gender
101(28.3%) 7 (16.3%) Male   
--- P<٠/ 8 173 (48.5%) 20 (46.5%) collegiate Amount of education
184 (51.5%) 23 (53.5%) Noncollegiate
--- P<٠/ 9 47 (13.2%) 12 (27.9%) North Life place          
76 (21.3%) 6 (14%) South
45 (12.6%) 7 (16.3%) East
132 (37%) 12 (27.9%) West
57 (15.9%) 6 (13.9%) Center
--- P<٠/٠٠5 211 (59.1%) 35 (81.4%) 7 years and less Duration  of MS
146 (40.9%) 8 (18.6%) Over 7 years
--- P<٠/9 307 (86%) 36 (83.7%) No change History of using drugs and treatment  before MS
50 (14%) 7 (16.3%) With change
--- P<٠/7 315 (88.2%) 37 (86%) No change History of systemic diseases
42 (11.8%) 6 (14%) With change
--- P<٠/8 330 (92.4%) 39 (90.7%) No change History of CNS diseases History   
27 (7.6%) 4 (9.3%) With change
--- P<٠/9 228 (63.9%) 32 (74.4%) No change History of surgery and anesthesia
129 (36.1%) 11 (25.6%) With change
--- P<٠/8 311 (87.1%) 37 (86%) No change Familial history of MS
46 (12.9%) 6 (14%) With change
Table 1: Distribution of MS patients with oral and facial manifestations by separation of factors.