The Revised Version of the Minnesota Multiphasic Personality Inventory in Korean College Students with Symptoms of Temporomandibular Disorders

  • Received : 2019.02.11
  • Accepted : 2019.03.19
  • Published : 2019.03.30


Purpose: The purpose of this study was to assess the association of personality characteristics with temporomandibular disorders (TMDs). Methods: Four hundred and fifty one college students in Gyeonggi-do completed the revised version of the Minnesota Multiphasic Personality Inventory (MMPI-2) and a questionnaire and collected data were analyzed by IBM SPSS Statistics ver. 25.0 software (IBM Co., Armonk, NY, USA). Results: Mean values of the number of positive answers of TMD symptoms were significantly higher in higher scorers on hypochondriasis (Hs), depression (D), paranoia (Pa) (Hs>60, D>64, Pa>59) (p<0.01). Higher scorers on Hs, hysteria (Hy), schizophrenia (Sc), Pa, psychasthenia (Pt) (Hy>64, Sc>64, Pt>64) exhibited significantly higher mean values of the number of positive answers of contributing factors for TMD (p<0.01, p<0.001). Low scorers on social introversion ($Si{\leq}44$) exhibited significantly lower mean value of the number of positive answers of contributing factors for TMD than high or moderate scorers on Si (Si>64, 45-64) (p<0.01, p<0.05). The percentage of subjects who responded that they had at least one TMD symptom was significantly higher in higher scorers on Hs, Pt, D (p<0.05, p<0.01). The significantly higher percentage of higher scorers on D, Pa reported at least one contributing factor for TMD (p<0.05). The percentage of subjects who responded that they had at least one TMD symptom or one contributing factor for TMD was significantly different among three groups divided by T-score on Si (p<0.01, p<0.05). T-scores of Hs, D, Hy, Pt and Sc showed significant correlation with the numbers of TMD symptoms and contributing factors for TMD, respectively (p<0.001). A correlation was found between T-score of Pd and the number of TMD symptoms (p<0.001). T-score of Si correlated to the number of contributing factors for TMD (p<0.001). Conclusions: Most clinical scales of MMPI-2 were found to be related to TMD. Psychological assessment including MMPI-2 may play a role in predicting treatment outcome and planning treatment of TMD.

Table 1. Demographics of the subjects

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Table 2. Prevalence and mean values of positive answers of TMD symptoms and contributing factors for TMD according to the range of T-score on ten clinical scales of MMPI-2 (n=451)

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Table 2. Continued

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Table 3. Tukey post hoc analysis on mean values of positive answers of contributing factors for TMD among three groups divided by T-score on Si scale (n=451)

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Table 4. Correlation between ten clinical scales of MMPI-2 and TMD symptoms and contributing factors for TMD (n=451)

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Supported by : Ministry of Education


  1. Bell WE. Temporomandibular disorders: classification, diagnosis and management 3rd ed. Chicago: Year Book Medical Publishers; 1990. pp. 166-176.
  2. Clark GT, Solberg WK. Perspectives in temporomandibular disorders. Chicago: Quintessence; 1987. pp. 13.
  3. De Kanter RJ, Truin GJ, Burgersdijk RC, et al. Prevalence in the Dutch adult population and a meta-analysis of signs and symptoms of temporomandibular disorder. J Dent Res 1993;72:1509-1518.
  4. Von Korff M, Dworkin SF, Le Resche L, Kruger A. An epidemiologic comparison of pain complaints. Pain 1988;32:173-183.
  5. Dworkin SF, LeResche L, Von Korff MR. Diagnostic studies of temporomandibular disorders: challenges from an epidemiologic perspective. Anesth Prog 1990;37:147-154.
  6. Okeson JP. Management of temporomandibular disorders and occlusion. 6th ed. Amsterdam: Elsevier Mosby; 2007. pp. 141-156.
  7. Kim KS. Factors contributing to temporomandibular disorders. J Korean Dent Assoc 1991;29:354-358.
  8. Michelotti A, Martina R, Russo M, Romeo R. Personality characteristics of temporomandibular disorder patients using M.M.P.I. Cranio 1998;16:119-125.
  9. Pankhurst CL. Controversies in the aetiology of temporomandibular disorders. Part 1. Temporomandibular disorders: all in the mind? Prim Dent Care 1997;4:25-30.
  10. McKinney MW, Londeen TF, Turner SP, Levitt SR. Chronic TM disorder and non-TM disorder pain: a comparison of behavioral and psychological characteristics. Cranio 1990;8:40-46.
  11. Robin O. Tooth clenching as a risk factor for temporomandibular disorders. Int J Stomatol Occlusion Med 2012;5:1-9.
  12. Kim MJ, Lim MJ, Park WK, Kho HS. Comparison between the SCL-90-R and MMPI in TMD patients with psychological problems. Oral Dis 2012;18:140-146.
  13. Mongini F, Rota E, Deregibus A, Mura F, Francia Germani A, Mongini T. A comparative analysis of personality profile and muscle tenderness between chronic migraine and chronic tension-type headache. Neurol Sci 2005;26:203-207.
  14. Fishbain DA, Cole B, Cutler RB, Lewis J, Rosomoff HL, Rosomoff RS. Chronic pain and the measurement of personality: do states influence traits? Pain Med 2006;7:509-529.
  15. McNeill C; American Academy of Orofacial Pain. Temporomandibular disorders: guidelines for classification, assessment, and management. 2nd ed. Chicago: Quintessence Publishing Co.; 1993. pp. 62.
  16. Nilner M. Prevalence of functional disturbances and diseases of the stomatognathic system in 15-18 year olds. Swed Dent J 1981;5:189-197.
  17. Mongini F, Ciccone G, Ibertis F, Negro C. Personality characteristics and accompanying symptoms in temporomandibular joint dysfunction, headache, and facial pain. J Orofac Pain 2000;14:52-58.
  18. Mutlu N, Herken H, Guray E, Oz F, Kalayci A. Evaluation of the prevalence of temporomandibular joint disorder syndrome in dental school students with psychometric analysis. Turk J Med Sci 2002;32:345-350.
  19. Ko MY, Kim YK. A study on personality traits of the patients with TMJ dysfunction through the MMPI. Korean J Oral Med 1985;10:17-31.
  20. Southwell J, Deary IJ, Geissler P. Personality and anxiety in temporomandibular joint syndrome patients. J Oral Rehabil 1990;17:239-243.
  21. Lupton DE. Psychological aspects of temporomandibular joint dysfunction. J Am Dent Assoc 1969;79:131-136.
  22. Parker MW, Holmes EK, Terezhalmy GT. Personality characteristics of patients with temporomandibular disorders: diagnostic and therapeutic implications. J Orofac Pain 1993;7:337-344.
  23. Gerschman JA, Wright JL, Hall WD, Reade PC, Burrows GD, Holwill BJ. Comparisons of psychological and social factors in patients with chronic oro-facial pain and dental phobic disorders. Aust Dent J 1987;32:331-335.
  24. Rugh JD, Woods BJ, Dahlstrom L. Temporomandibular disorders: assessment of psychological factors. Adv Dent Res 1993;7:127-136.
  25. Jeung JO. (A) Study on psychological characteristics of T.M.J. pain and dysfunction using SCL-90-R [Master's Thesis]. Gwangju: Chosun University; 1986.
  26. Graham JR. MMPI-2 : assessing personality and psychopathology. 5th ed. New York: Oxford University Press; 2011. pp. 63-91.
  27. Chung SC, Ko MY, Kim YJ. A study on the background variable in the patients with TMJ dysfunction. Korean J Oral Med 1983;8:69-76.
  28. Ko MY, Kim CJ, Lim YH. Personality characteristics of TMJ patients through the SCL-90-R. Pusan Univ Dent J 1986;3:27-35.
  29. Mongini F, Barbalonga E, Raviola F. The MMPI-2 in women with headache or facial pain. A comparative study. J Headache Pain 2000;2:105-110.
  30. Park HS. Personality type test (MBTI) of Korean college students with symptoms of temporomandibular disorders. Korean J Oral Med 2011;36:25-37.