Type D Personality, Somatization and Perceived Social Support in Temporomandibular Joint Disorders
NCT ID: NCT07292064
Last Updated: 2025-12-29
Study Results
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Basic Information
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COMPLETED
90 participants
OBSERVATIONAL
2025-02-20
2025-06-30
Brief Summary
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The research was conducted as a prospective cross-sectional study between February and June 2025 in Gaziantep City Hospital. Adult participants between 18 and 65 years of age who were diagnosed with temporomandibular joint disorders were compared with healthy individuals of similar age and gender. Participants completed validated questionnaires that assessed mandibular function, anxiety and depression symptoms, Type D personality traits, somatization tendencies, and levels of perceived social support. The purpose of this study was to provide a more comprehensive understanding of the psychological and social dimensions that may contribute to the onset and course of temporomandibular joint disorders.
Detailed Description
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Data collection involved face-to-face interviews using standardized self-report questionnaires. The following instruments were used:
1. \*\*Mandibular Function Impairment Questionnaire:\*\* This instrument includes 17 questions that evaluate functional problems of the jaw during daily activities. Each question is scored on a five-point scale, and higher total scores indicate greater impairment in jaw function.
2. \*\*Hospital Anxiety and Depression Scale:\*\* This tool consists of 14 questions that measure symptoms of anxiety and depression. It has two parts, each containing seven questions. Each section produces a total score between zero and twenty-one, where higher values represent greater symptom severity.
3. \*\*Type D Personality Scale:\*\* This scale contains fourteen statements divided into two categories: negative emotions and social inhibition. Each statement is rated on a five-point scale from zero to four. A score of ten or more on both categories indicates the presence of Type D personality traits.
4. \*\*Somatization Scale:\*\* This questionnaire includes thirty-three true or false statements that identify the presence of unexplained physical symptoms. Some statements are reverse coded. Higher total scores show more frequent or severe somatic complaints.
5. \*\*Multidimensional Scale of Perceived Social Support:\*\* This twelve-question scale measures perceived emotional and practical support from three sources: family, friends, and a significant other. Each item is rated on a seven-point scale. Higher scores represent stronger perceived social support.
In addition to these scales, sociodemographic data such as age, sex, marital status, education, occupation, and income were recorded. Exclusion criteria included the presence of severe psychiatric disorders, neurological disease, or cognitive impairment that could interfere with understanding or completing the questionnaires.
All collected data were analyzed using appropriate statistical methods. Distribution normality was assessed, and comparisons between the two groups were performed using suitable parametric or non-parametric tests. Associations among the measured psychological and functional parameters were examined through correlation analyses.
The objective of this study was to identify potential associations between Type D personality, somatization, and perceived social support in individuals with temporomandibular joint disorders. By evaluating these interrelated psychological and social variables, the study sought to emphasize the importance of a holistic and multidisciplinary approach in understanding and managing temporomandibular joint disorders.
Conditions
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Keywords
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Study Design
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CASE_CONTROL
CROSS_SECTIONAL
Study Groups
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Temporomandibular Joint Disorder Group
Adults aged 18-65 years who were clinically diagnosed with temporomandibular joint disorders at the Otorhinolaryngology outpatient clinic of Gaziantep City Hospital. Participants completed questionnaires evaluating mandibular function, anxiety, depression, personality traits, somatization, and perceived social support. No medical or pharmacological intervention was applied.
No interventions assigned to this group
Healthy Control Group
Healthy adults aged 18-65 years with no diagnosis or symptoms of temporomandibular joint disorders. The control participants were matched to the patient group by age and gender and completed the same psychological and functional assessment questionnaires.
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
Ability to read and write
Cognitively intact
Patients diagnosed with temporomandibular joint disorders or healthy volunteers
Exclusion Criteria
Illiteracy
Cognitive impairment
18 Years
65 Years
ALL
Yes
Sponsors
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Bozok University
OTHER
Gaziantep City Hospital
OTHER
Gulseren Demir Karakilic
OTHER
Responsible Party
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Gulseren Demir Karakilic
Assistant Professor, Principal Investigator
Principal Investigators
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Gülseren Demir Karakılıç, Assistant Professor
Role: PRINCIPAL_INVESTIGATOR
Yozgat Bozok University
Locations
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Yozgat Bozok University Faculty of Medicine, Department of Physical Medicine and Rehabilitation
Yozgat, Yozgat, Turkey (Türkiye)
Countries
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References
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Zimet GD, Powell SS, Farley GK, Werkman S, Berkoff KA. Psychometric characteristics of the Multidimensional Scale of Perceived Social Support. J Pers Assess. 1990 Winter;55(3-4):610-7. doi: 10.1080/00223891.1990.9674095.
Eker, D., Cok boyutlu algilanan sosyal destek olceginin gozden gecirilmis formunun faktor yapisi, gecerlik ve guvenirligi. Turk Psikiyatri Dergisi, 2001. 12: p. 17-25.
Dülgerler, Ş., İlköğretim okulu öğretmenlerinde somatizasyon ölçeğinin geçerlik ve güvenirlik çalışması. Unpublished master dissertation). Ege University, İzmir, 2000.
Öncü, E. and S.K. Vayısoğlu, D tipi kişilik ölçeğinin Türk toplumunda geçerlilik ve güvenirlilik çalışması. Ankara Medical Journal, 2018. 18(4): p. 646-656.
Denollet J. DS14: standard assessment of negative affectivity, social inhibition, and Type D personality. Psychosom Med. 2005 Jan-Feb;67(1):89-97. doi: 10.1097/01.psy.0000149256.81953.49.
Aydemir, Ö., et al., Validity and reliability of Turkish version of hospital anxiety and depression scale. Turk Psikiyatri Derg, 1997. 8(4): p. 280-7.
Kılınç, H.E., et al., Further Validity and Reliability of Turkish Version of the Mandibular Functional Impairment Questionnaire in Patients with Temporomandibular Dysfunction. Journal of Basic and Clinical Health Sciences, 2022. 7(1): p. 214-222.
Other Identifiers
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124/2025
Identifier Type: -
Identifier Source: org_study_id