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VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS

Yıl 2025, Cilt: 36 Sayı: 2, 143 - 152, 22.09.2025

Öz

Purpose: The Helkimo Clinical Dysfunction Index (HCDI) is a brief and easy-to-use assessment tool designed to evaluate individuals with temporomandibular disorders (TMDs). The evaluation assesses muscle strength, joint function, mobility, pain, and musculature to give a rapid overall review for various levels of treatment. Because of this, the research aimed to verify the HCDI’s use in a group of TMD patients.
Methods: There were 88 participants, 44 of whom had TMD. The other 44 participants were healthy. Inter-rater concordance, predictive scores, and concurrent validity were all assessed in the study.
Results: The analysis of the receiver operating characteristic curve identified an optimal cut-off point of more than 1 point in the HCDI score that manifested a sensitivity of 81.17% alongside a specificity of 72.43% for diagnosing TMDs, thus establishing the DC/TMD protocol as the benchmark.
Conclusion: This analytical process demonstrated an area under the curve of 0.90, indicative of commendable precision.

Kaynakça

  • Kılınç HE, Ulusoy B, Ergun N. Acute effect of created muscle fatigue in cervical region on temporomandibular joint in healthy women. Turk J Physiother Rehabil. 2015;26(1):20-5.
  • Xie C, Lin M, Yang H, Ren A. Prevalence of temporomandibular disorders and its clinical signs in Chinese students, 1979-2017: a systematic review and meta-analysis. Oral Dis. 2019;25(7):1697-706.
  • de Felicio CM, Melchior Mde O, Da Silva MA. Clinical validity of the protocol for multi-professional centers for the determination of signs and symptoms of temporomandibular disorders. Part II. Cranio. 2009;27(1):62-7.
  • Murphy MK, MacBarb RF, Wong ME, Athanasiou KA. Temporomandibular disorders: a review of etiology, clinical management, and tissue engineering strategies. Int J Oral Maxillofac Implants. 2013;28(6):e393-414.
  • Damar Örenler S, Tuncer A, Najafov E. A comparison of manual therapy and splint therapy in patients diagnosed with myofascial temporomandibular dysfunction with sleep bruxism. Turk J Physiother Rehabil. 2022;33(2):89-97.
  • Kılınç HE, Ünver B, Sarı M, Tunç AR, Bek N. Determinants of temporomandibular dysfunction and bruxism in academicians. Turk J Physiother Rehabil. 2022;33(1):31-38.
  • Moss RA, Garrett JC. Temporomandibular joint dysfunction syndrome and myofascial pain dysfunction syndrome: a critical review. J Oral Rehabil. 1984;11(1):3-28.
  • Liu F, Steinkeler A. Epidemiology, diagnosis, and treatment of temporomandibular disorders. Dent Clin North Am. 2013;57(3):465-79.
  • Scrivani SJ, Keith DA, Kaban LB. Temporomandibular disorders. N Engl J Med. 2008;359(25):2693-705.
  • Li DTS, Leung YY. Temporomandibular disorders: current concepts and controversies in diagnosis and management. Diagnostics (Basel). 2021;11(3):459.
  • Hunter A, Kalathingal S. Diagnostic imaging for temporomandibular disorders and orofacial pain. Dent Clin North Am. 2013;57(3):405-18.
  • Rawlani S, Rawlani S, Motwani M, Degwekar S, Bhowte R, Baheti R. Imaging modality for temporomandibular joint disorder-a review. Journal of Datta Meghe Institute of Medical Sciences University. 2010;5(2):126-33.
  • Nascimento MM, Vasconcelos BC, Porto GG, Ferdinanda G, Nogueira CM, Raimundo RD. Physical therapy and anesthetic blockage for treating temporomandibular disorders: a clinical trial. Med Oral Patol Oral Cir Bucal. 2013;18(1):e81-5.
  • Bessette RU, Bishop B, Mohl NO. Duration of masseteric silent period in patients with TMJ syndrome. J Appl Physiol. 1971;30(6):864-9.
  • Rani S, Pawah S, Gola S, Bakshi M. Analysis of Helkimo index for temporomandibular disorder diagnosis in the dental students of Faridabad city: a cross-sectional study. J Indian Prosthodont Soc. 2017;17(1):48-52.
  • List T, Axelsson S. Management of TMD: evidence from systematic reviews and meta‐analyses. J Oral Rehabil. 2010;37(6):430-51.
  • Schiffman E, Ohrbach R. Executive summary of the diagnostic criteria for temporomandibular disorders for clinical and research applications. J Am Dent Assoc. 2016;147(6):438-45.
  • Meng H, Dai J, Li Y. Quantitative sensory testing in patients with the muscle pain subtype of temporomandibular disorder: a systemic review and meta-analysis. Clin Oral Investig. 2021;25(12):6547-59.
  • Helkimo M. Studies on function and dysfunction of the masticatory system. IV. Age and sex distribution of symptoms of dysfunction of the masticatory system in Lapps in the north of Finland. Acta Odontol Scand. 1974;32(4):255-67.
  • Hobart JC, Cano SJ, Warner TT, Thompson AJ. What sample sizes for reliability and validity studies in neurology? J Neurol. 2012;259(12):2681-94.
  • Alonso-Royo R, Sánchez-Torrelo CM, Ibáñez-Vera AJ, Zagalaz-Anula N, Castellote-Caballero Y, Obrero-Gaitán E, et al. Validity and reliability of the Helkimo clinical dysfunction index for the diagnosis of temporomandibular disorders. Diagnostics. 2021;11(3):472.
  • Carlsson AM. Assessment of chronic pain. I. Aspects of the reliability and validity of the visual analogue scale. Pain. 1983;16(1):87-101.
  • Telci EA, Karaduman A, Yakut Y, Aras B, Simsek IE, Yagli N. The cultural adaptation, reliability, and validity of Neck Disabilitiy Index in patients with neck pain: a Turkish version study. Spine (Phila Pa 1976). 2009;34(16):1732-5.
  • Canbal M, Cebeci S, Duyan G, Kurtaran H, Arslan İ. A study of reliability and validity for the Turkish version of dizziness handicap inventory. TJFM&PC. 2016;10(1):19-24.
  • Arıkan H. Translation, cultural adaptation, reliability, and validity of the Turkish version of the headache impact questionnaire. Karya J Health Sci. 2024;5(3):94-9.
  • Soysal Gündüz Ö, Mutlu S, Aslan Basli A, Gül C, Akgül Ö, Yilmaz E, et al. Validation of the Turkish form of short form-12 health survey version 2 (SF-12v2). Arch Rheumatol. 2021;36(2):280-6.
  • Alinaghi F, Calov M, Kristensen LE, Gladman DD, Coates LC, Jullien D, et al. Prevalence of psoriatic arthritis in patients with psoriasis: a systematic review and meta-analysis of observational and clinical studies. J Am Acad Dermatol. 2019;80(1):251-65.
  • Badel T, Savić Pavičin I, Krapac L, Zadravec D, Rosić D. Psoriatic arthritis and temporomandibular joint involvement - literature review with a reported case. Acta Dermatovenerol Croat. 2014;22(2):114-21.
  • Nokar S, Sadighpour L, Shirzad H, Shahrokhi Rad A, Keshvad A. Evaluation of signs, symptoms, and occlusal factors among patients with temporomandibular disorders according to Helkimo index. Cranio. 2019;37(6):383-8.
  • Paknahad M, Shahidi S. Association between mandibular condylar position and clinical dysfunction index. J Craniomaxillofac Surg. 2015;43(4):432-6.
  • Barrera-Mora JM, Espinar Escalona E, Abalos Labruzzi C, Llamas Carrera JM, Ballesteros EJ, Solano Reina E, et al. The relationship between malocclusion, benign joint hypermobility syndrome, condylar position and TMD symptoms. Cranio. 2012;30(2):121-30.
  • Padala S, Padmanabhan S, Chithranjan AB. Comparative evaluation of condylar position in symptomatic (TMJ dysfunction) and asymptomatic individuals. Indian J Dent Res. 2012;23(1):122.
  • Vojdani M, Bahrani F, Ghadiri P. The study of relationship between reported temporomandibular symptoms and clinical dysfunction index among university students in Shiraz. Dent Res J (Isfahan). 2012;9(2):221-5.
  • Khojastepour L, Vojdani M, Forghani M. The association between condylar bone changes revealed in cone beam computed tomography and clinical dysfunction index in patients with or without temporomandibular joint disorders. Oral Surg Oral Med Oral Pathol Oral Radiol. 2017;123(5):600-5.
  • Khojastepour L, Omidi M, Vojdani M, Bagheri K. Investigating possible correlation between condylar asymmetry and clinical dysfunction indices in patients with temporomandibular dysfunction using cone-beam computed tomographic. J Craniomaxillofac Surg. 2019;47(3):438-42.
  • Ardizone I, Celemin A, Aneiros F, del Rio J, Sanchez T, Moreno I. Electromyographic study of activity of the masseter and anterior temporalis muscles in patients with temporomandibular joint (TMJ) dysfunction: comparison with the clinical dysfunction index. Med Oral Patol Oral Cir Bucal. 2010;15(1):e14-9.
  • Bonjardim LR, Lopes-Filho RJ, Amado G, Albuquerque RL Jr, Goncalves SR. Association between symptoms of temporomandibular disorders and gender, morphological occlusion, and psychological factors in a group of university students. Indian J Dent Res. 2009;20(2):190-4.
  • Nomura K, Vitti M, Oliveira AS, Chaves TC, Semprini M, Siéssere S, et al. Use of the Fonseca’s questionnaire to assess the prevalence and severity of temporomandibular disorders in Brazilian dental undergraduates. Braz Dent J. 2007;18(2):163-7.
  • Franco-Micheloni AL, Fernandes G, Gonçalves DA, Camparis CM. Temporomandibular disorders among Brazilian adolescents: reliability and validity of a screening questionnaire. J Appl Oral Sci. 2014;22(4):314-22.
  • Borges REA, Mendonça LDRA, Dos Santos Calderon P. Diagnostic and screening inventories for temporomandibular disorders: a systematic review. Cranio. 2021;42(3):341-7.

TEMPOROMANDİBULAR BOZUKLUKLARIN TEŞHİSİNDE HELKİMO KLİNİK DİSFONKSİYON İNDEKSİNİN GEÇERLİLİĞİ VE GÜVENİRLİĞİ

Yıl 2025, Cilt: 36 Sayı: 2, 143 - 152, 22.09.2025

Öz

Amaç: Helkimo Klinik Disfonksiyon İndeksi (HCDI), temporomandibular bozukluğu (TMD) olan bireyleri değerlendirmek için tasarlanmış kısa, kullanımı kolay bir değerlendirme aracıdır. Değerlendirme, çeşitli tedavi seviyeleri için hızlı bir genel değerlendirme sağlamak amacıyla kas gücü, eklem fonksiyonu, hareketlilik, ağrı ve kas sistemini değerlendirir. Bu nedenle, araştırma HCDI’nin TMD hastasında kullanımını doğrulamayı amaçlamıştır.
Yöntem: Çalışmaya 44’ünde TMD olan 88 katılımcı dahil edildi. Diğer 44 katılımcı ise sağlıklıydı. Çalışmada değerlendiriciler arası uyum, öngörücü skorlar ve eşzamanlı geçerlilik değerlendirilmiştir.
Bulgular: Alıcı işletim karakteristik eğrisinin analizi, TMD’lerin teşhisi için %72,43 özgüllüğün yanı sıra %81,17’lik bir duyarlılık gösteren HCDI skorunda 1 puandan fazla optimal bir kesme noktası belirlenerek DC/TMD protokolünü ölçüt olarak bulundu.
Sonuç: Bu analitik süreç, yüksek bir hassasiyetin göstergesi olan 0,90’lık bir eğri altındaki alanı göstermiştir.

Etik Beyan

Ethical Standards in 1946 Declaration of Helsinki, as revised in 2013, were followed and the study was approved by the University’s Ethics Board. Clinical Trial Registry Name And Registration Number DenizOzluer/ NCT05749224

Kaynakça

  • Kılınç HE, Ulusoy B, Ergun N. Acute effect of created muscle fatigue in cervical region on temporomandibular joint in healthy women. Turk J Physiother Rehabil. 2015;26(1):20-5.
  • Xie C, Lin M, Yang H, Ren A. Prevalence of temporomandibular disorders and its clinical signs in Chinese students, 1979-2017: a systematic review and meta-analysis. Oral Dis. 2019;25(7):1697-706.
  • de Felicio CM, Melchior Mde O, Da Silva MA. Clinical validity of the protocol for multi-professional centers for the determination of signs and symptoms of temporomandibular disorders. Part II. Cranio. 2009;27(1):62-7.
  • Murphy MK, MacBarb RF, Wong ME, Athanasiou KA. Temporomandibular disorders: a review of etiology, clinical management, and tissue engineering strategies. Int J Oral Maxillofac Implants. 2013;28(6):e393-414.
  • Damar Örenler S, Tuncer A, Najafov E. A comparison of manual therapy and splint therapy in patients diagnosed with myofascial temporomandibular dysfunction with sleep bruxism. Turk J Physiother Rehabil. 2022;33(2):89-97.
  • Kılınç HE, Ünver B, Sarı M, Tunç AR, Bek N. Determinants of temporomandibular dysfunction and bruxism in academicians. Turk J Physiother Rehabil. 2022;33(1):31-38.
  • Moss RA, Garrett JC. Temporomandibular joint dysfunction syndrome and myofascial pain dysfunction syndrome: a critical review. J Oral Rehabil. 1984;11(1):3-28.
  • Liu F, Steinkeler A. Epidemiology, diagnosis, and treatment of temporomandibular disorders. Dent Clin North Am. 2013;57(3):465-79.
  • Scrivani SJ, Keith DA, Kaban LB. Temporomandibular disorders. N Engl J Med. 2008;359(25):2693-705.
  • Li DTS, Leung YY. Temporomandibular disorders: current concepts and controversies in diagnosis and management. Diagnostics (Basel). 2021;11(3):459.
  • Hunter A, Kalathingal S. Diagnostic imaging for temporomandibular disorders and orofacial pain. Dent Clin North Am. 2013;57(3):405-18.
  • Rawlani S, Rawlani S, Motwani M, Degwekar S, Bhowte R, Baheti R. Imaging modality for temporomandibular joint disorder-a review. Journal of Datta Meghe Institute of Medical Sciences University. 2010;5(2):126-33.
  • Nascimento MM, Vasconcelos BC, Porto GG, Ferdinanda G, Nogueira CM, Raimundo RD. Physical therapy and anesthetic blockage for treating temporomandibular disorders: a clinical trial. Med Oral Patol Oral Cir Bucal. 2013;18(1):e81-5.
  • Bessette RU, Bishop B, Mohl NO. Duration of masseteric silent period in patients with TMJ syndrome. J Appl Physiol. 1971;30(6):864-9.
  • Rani S, Pawah S, Gola S, Bakshi M. Analysis of Helkimo index for temporomandibular disorder diagnosis in the dental students of Faridabad city: a cross-sectional study. J Indian Prosthodont Soc. 2017;17(1):48-52.
  • List T, Axelsson S. Management of TMD: evidence from systematic reviews and meta‐analyses. J Oral Rehabil. 2010;37(6):430-51.
  • Schiffman E, Ohrbach R. Executive summary of the diagnostic criteria for temporomandibular disorders for clinical and research applications. J Am Dent Assoc. 2016;147(6):438-45.
  • Meng H, Dai J, Li Y. Quantitative sensory testing in patients with the muscle pain subtype of temporomandibular disorder: a systemic review and meta-analysis. Clin Oral Investig. 2021;25(12):6547-59.
  • Helkimo M. Studies on function and dysfunction of the masticatory system. IV. Age and sex distribution of symptoms of dysfunction of the masticatory system in Lapps in the north of Finland. Acta Odontol Scand. 1974;32(4):255-67.
  • Hobart JC, Cano SJ, Warner TT, Thompson AJ. What sample sizes for reliability and validity studies in neurology? J Neurol. 2012;259(12):2681-94.
  • Alonso-Royo R, Sánchez-Torrelo CM, Ibáñez-Vera AJ, Zagalaz-Anula N, Castellote-Caballero Y, Obrero-Gaitán E, et al. Validity and reliability of the Helkimo clinical dysfunction index for the diagnosis of temporomandibular disorders. Diagnostics. 2021;11(3):472.
  • Carlsson AM. Assessment of chronic pain. I. Aspects of the reliability and validity of the visual analogue scale. Pain. 1983;16(1):87-101.
  • Telci EA, Karaduman A, Yakut Y, Aras B, Simsek IE, Yagli N. The cultural adaptation, reliability, and validity of Neck Disabilitiy Index in patients with neck pain: a Turkish version study. Spine (Phila Pa 1976). 2009;34(16):1732-5.
  • Canbal M, Cebeci S, Duyan G, Kurtaran H, Arslan İ. A study of reliability and validity for the Turkish version of dizziness handicap inventory. TJFM&PC. 2016;10(1):19-24.
  • Arıkan H. Translation, cultural adaptation, reliability, and validity of the Turkish version of the headache impact questionnaire. Karya J Health Sci. 2024;5(3):94-9.
  • Soysal Gündüz Ö, Mutlu S, Aslan Basli A, Gül C, Akgül Ö, Yilmaz E, et al. Validation of the Turkish form of short form-12 health survey version 2 (SF-12v2). Arch Rheumatol. 2021;36(2):280-6.
  • Alinaghi F, Calov M, Kristensen LE, Gladman DD, Coates LC, Jullien D, et al. Prevalence of psoriatic arthritis in patients with psoriasis: a systematic review and meta-analysis of observational and clinical studies. J Am Acad Dermatol. 2019;80(1):251-65.
  • Badel T, Savić Pavičin I, Krapac L, Zadravec D, Rosić D. Psoriatic arthritis and temporomandibular joint involvement - literature review with a reported case. Acta Dermatovenerol Croat. 2014;22(2):114-21.
  • Nokar S, Sadighpour L, Shirzad H, Shahrokhi Rad A, Keshvad A. Evaluation of signs, symptoms, and occlusal factors among patients with temporomandibular disorders according to Helkimo index. Cranio. 2019;37(6):383-8.
  • Paknahad M, Shahidi S. Association between mandibular condylar position and clinical dysfunction index. J Craniomaxillofac Surg. 2015;43(4):432-6.
  • Barrera-Mora JM, Espinar Escalona E, Abalos Labruzzi C, Llamas Carrera JM, Ballesteros EJ, Solano Reina E, et al. The relationship between malocclusion, benign joint hypermobility syndrome, condylar position and TMD symptoms. Cranio. 2012;30(2):121-30.
  • Padala S, Padmanabhan S, Chithranjan AB. Comparative evaluation of condylar position in symptomatic (TMJ dysfunction) and asymptomatic individuals. Indian J Dent Res. 2012;23(1):122.
  • Vojdani M, Bahrani F, Ghadiri P. The study of relationship between reported temporomandibular symptoms and clinical dysfunction index among university students in Shiraz. Dent Res J (Isfahan). 2012;9(2):221-5.
  • Khojastepour L, Vojdani M, Forghani M. The association between condylar bone changes revealed in cone beam computed tomography and clinical dysfunction index in patients with or without temporomandibular joint disorders. Oral Surg Oral Med Oral Pathol Oral Radiol. 2017;123(5):600-5.
  • Khojastepour L, Omidi M, Vojdani M, Bagheri K. Investigating possible correlation between condylar asymmetry and clinical dysfunction indices in patients with temporomandibular dysfunction using cone-beam computed tomographic. J Craniomaxillofac Surg. 2019;47(3):438-42.
  • Ardizone I, Celemin A, Aneiros F, del Rio J, Sanchez T, Moreno I. Electromyographic study of activity of the masseter and anterior temporalis muscles in patients with temporomandibular joint (TMJ) dysfunction: comparison with the clinical dysfunction index. Med Oral Patol Oral Cir Bucal. 2010;15(1):e14-9.
  • Bonjardim LR, Lopes-Filho RJ, Amado G, Albuquerque RL Jr, Goncalves SR. Association between symptoms of temporomandibular disorders and gender, morphological occlusion, and psychological factors in a group of university students. Indian J Dent Res. 2009;20(2):190-4.
  • Nomura K, Vitti M, Oliveira AS, Chaves TC, Semprini M, Siéssere S, et al. Use of the Fonseca’s questionnaire to assess the prevalence and severity of temporomandibular disorders in Brazilian dental undergraduates. Braz Dent J. 2007;18(2):163-7.
  • Franco-Micheloni AL, Fernandes G, Gonçalves DA, Camparis CM. Temporomandibular disorders among Brazilian adolescents: reliability and validity of a screening questionnaire. J Appl Oral Sci. 2014;22(4):314-22.
  • Borges REA, Mendonça LDRA, Dos Santos Calderon P. Diagnostic and screening inventories for temporomandibular disorders: a systematic review. Cranio. 2021;42(3):341-7.
Toplam 40 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Fizyoterapi
Bölüm Araştırma Makaleleri
Yazarlar

Elif Tuğçe Çil 0000-0001-8231-115X

Can Seçinti 0009-0000-4065-105X

Deniz Özlüer 0009-0008-6275-0305

Hazal Yeşilkaya 0009-0009-2849-5467

Ebru Akbuğa Koç 0000-0001-7601-0481

Demirhan Dıraçoğlu 0000-0001-5682-5050

Şule Hantal 0000-0002-9018-8777

Yayımlanma Tarihi 22 Eylül 2025
Gönderilme Tarihi 28 Ocak 2024
Kabul Tarihi 14 Mayıs 2025
Yayımlandığı Sayı Yıl 2025 Cilt: 36 Sayı: 2

Kaynak Göster

APA Çil, E. T., Seçinti, C., Özlüer, D., … Yeşilkaya, H. (2025). VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS. Türk Fizyoterapi ve Rehabilitasyon Dergisi, 36(2), 143-152.
AMA Çil ET, Seçinti C, Özlüer D, vd. VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS. Turk J Physiother Rehabil. Eylül 2025;36(2):143-152.
Chicago Çil, Elif Tuğçe, Can Seçinti, Deniz Özlüer, Hazal Yeşilkaya, Ebru Akbuğa Koç, Demirhan Dıraçoğlu, ve Şule Hantal. “VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS”. Türk Fizyoterapi ve Rehabilitasyon Dergisi 36, sy. 2 (Eylül 2025): 143-52.
EndNote Çil ET, Seçinti C, Özlüer D, Yeşilkaya H, Akbuğa Koç E, Dıraçoğlu D, Hantal Ş (01 Eylül 2025) VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS. Türk Fizyoterapi ve Rehabilitasyon Dergisi 36 2 143–152.
IEEE E. T. Çil, C. Seçinti, D. Özlüer, H. Yeşilkaya, E. Akbuğa Koç, D. Dıraçoğlu, ve Ş. Hantal, “VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS”, Turk J Physiother Rehabil, c. 36, sy. 2, ss. 143–152, 2025.
ISNAD Çil, Elif Tuğçe vd. “VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS”. Türk Fizyoterapi ve Rehabilitasyon Dergisi 36/2 (Eylül2025), 143-152.
JAMA Çil ET, Seçinti C, Özlüer D, Yeşilkaya H, Akbuğa Koç E, Dıraçoğlu D, Hantal Ş. VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS. Turk J Physiother Rehabil. 2025;36:143–152.
MLA Çil, Elif Tuğçe vd. “VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS”. Türk Fizyoterapi ve Rehabilitasyon Dergisi, c. 36, sy. 2, 2025, ss. 143-52.
Vancouver Çil ET, Seçinti C, Özlüer D, Yeşilkaya H, Akbuğa Koç E, Dıraçoğlu D, vd. VALIDITY AND RELIABILITY OF THE HELKIMO CLINICAL DYSFUNCTION INDEX FOR THE DIAGNOSIS OF TEMPOROMANDIBULAR DISORDERS. Turk J Physiother Rehabil. 2025;36(2):143-52.