- Open Access
Social impairment of individuals suffering from different types of chronic orofacial pain
© Cioffi et al.; licensee Springer 2014
Received: 1 June 2013
Accepted: 16 January 2014
Published: 16 April 2014
The daily life of patients suffering from orofacial pain is considerably impaired as compared to healthy subjects. The aim of this study was to investigate the influence of different categories of orofacial pain on the habitual life of adult individuals.
Seven hundred eighty-one individuals with orofacial pain were recruited from an initial sample of 1,058 patients. All the individuals were allocated to groups according to their diagnosis: myofascial pain (group A, 676 subjects, 525 females and 151 males; mean age ± SD = 35.2 ± 12.6), migraine (group B, 39 subjects, 29 females and 10 males; mean age ± SD 36.0 ± 10.7), and both myofascial pain and migraine (group C, 66 subjects, 56 females and 10 males, mean age ± SD = 35.6 ± 10.8). Characteristic pain intensity (CPI), disability days (DD), disability score (DS), and graded chronic pain intensity (GCPS) were calculated according to Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) axis II. Depression and somatization (nonspecific physical symptoms) scores were also calculated.
A significant association between groups and GCPS categories was found (p < 0.0001). Post hoc tests showed a significant difference between groups A and B and between A and C, but not between B and C. In group A, the most frequent GCPS score was grade II. The most frequent GCPS score in groups B and C was grade III, indicating a moderate limiting impairment. This score was more frequent in group B (41%) than in the other groups (group A = 20.6%, group C = 34.8%). GCPS grade IV was more frequent in group C (19.7%) than in the other groups. Group C had significantly higher scores for nonspecific physical symptoms than group A (p < 0.05).
Myofascial pain and migraine sensibly affect the common daily life of adult individuals. The comorbidity of both conditions determines a major impairment.
Orofacial pain is relatively frequent in the general population . The role of acute pain is to act as a protector by warning an individual, in order to maintain proper physiological function . It is characterized by a sudden onset, short duration, predictability of treatment outcome, and it is often associated with reversible psychological distress. Differently, chronic pain is defined as pain that persists beyond the usual course of an acute disease process , and it is characterized by extended duration. Commonly, it is related to a poorly defined pathology and presents a limited response to medical treatments [3, 4].
Chronic pain is often associated with psychological distress and social impairment, with reduced quality of life, working capacity, and social costs .
The head and neck region is one of the most common body locations for reported pain . Also, chronic orofacial pain may be associated with social impairment, reduced quality of life, psychological distress, physical disability, reduced economical income, and high costs for the healthcare service .
Tempomandibular disorders (TMDs) are regarded as the most common cause of chronic orofacial pain . They comprise a group of disorders that affect the temporomandibular joint (TMJ), the masticatory muscles, or both, and are often associated to musculoskeletal pain, disturbances in mandibular functional movements with impairment of oral function [9–12].
The main reason for patients to seek treatment is that most TMDs are related to the onset of chronic pain . It has been suggested that psychological factors are severely implicated in the initiation as well in the perpetuation of several TMDs [14, 15] and that stress, somatic distress, and depression may be potential etiological risk factors for TMD-related pain [16, 17]. A comorbidity of TMDs and headaches or migraine has been shown in a number of studies [18–23].
TMDs have been also associated with other chronic pains involving neck, back, and joints. This scenario causes major physical and psychological disability and remarkable health care costs.
Recently, a longitudinal study conducted in the United States, involving thousands of individuals, showed that the comorbidity of TMD pain with other conditions is very frequent and that less than 1% of individuals with TMDs are free of other pain symptoms .
The characteristics of chronic TMDs and their related social impairment have been recently investigated in a large international sample, including Italian individuals . However, little is known about which of the different categories of orofacial pain may predominantly affect the habitual life of adult individuals.
The aim of this study was to investigate the pain characteristics and the social impairment determined by muscular TMD-related pain, migraine, and by their comorbidity.
Individuals suffering from muscular orofacial pain (myofascial pain or tension type headache), migraine, or both were selected from an initial sample of 1,058 patients referred to the Department of Neuroscience, Section of Orthodontics and Temporomandibular disorders, University of Naples Federico II, Italy. The Research Diagnostic Criteria for TMDs were used to diagnose different subgroups of TMDs . Patients gave their written consent for the collection and analysis of data. The study was approved by the Local Ethical Committee of the Department of Neuroscience, University of Naples Federico II.
The clinical examination was performed by an operator who was calibrated for the assessment of TMDs  according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). The clinical examination included the assessment of painful areas that have been subjectively reported by patients, the qualitative assessment (presence of any deviations or deflections) and quantitative analysis of vertical movements of the jaw (open active pain-free, fully open active, passive maximum opening, and evaluation of overbite). Furthermore, joint noises on palpation on vertical movements (clicking or crepitus on opening, closing, or the other way around) and articular noise on palpation during lateralization and protrusion (click or crepitus) were evaluated. Intraoral and extraoral muscle palpation were conducted according to RDC guidelines.
The diagnosis of migraine was performed according to the International Headache Society (IHS) criteria . Each subject had a diagnosis of migraine when reporting at least five headache attacks lasting 4 to 72 h (untreated or unsuccessfully treated) with nausea and/or vomiting or photophobia and phonophobia. Headaches had at least two of the following characteristics: unilateral location, pulsating quality, moderate or severe pain intensity, causing avoidance of routine physical activity (e.g., walking or climbing stairs).
A total of 781 individuals were recruited and allocated to groups according to their diagnosis. Individuals suffering from muscular pain (myofascial pain or tension type headache) were allocated to group A (676 subjects, 525 females and 151 males; mean age ± SD = 35.2 ± 12.6 years), patients with migraine were allocated to group B (39 subjects, 29 females and 10 males; mean age ± SD 36.0 ± 10.7 years), and subjects with both muscular pain and migraine were allocated to group C (66 subjects, 56 females and 10 males; mean age ± SD = 35.6 ± 10.8 years).
All the individuals completed the axis II instrument of RDC/TMD (including the evaluation of depression, nonspecific physical symptoms, and the graded chronic pain scale) . Characteristic pain intensity (CPI), disability days (DD), disability score (DS), and graded chronic pain intensity scores (GCPS) were calculated according to RDC/TMD axis II graded chronic pain scale for all the orofacial pain categories examined. Scores from depression symptoms using checklist 90 (SCL 90) scale for depression and somatization levels (SCL 90 scale for nonspecific physical symptoms) were also computed .
The association between groups and GCPS grade categories was evaluated using Kruskal-Wallis test that take into account the ordinal values of the variables. Bonferroni post hoc test was used to detect differences between groups.
The analysis of variance was used to assess between-group differences in CPI, DD, and DS. The analyses were performed using SPSS software ver. 20 (IBM Corp., Armonk, NY, USA). The statistical significance was set at p < 0.05.
Distribution of GCPS scores in the groups examined
Between-group significant differences
In group A, the most frequent GCPS score was grade II. The most frequent GCPS score in groups B and C was grade III, indicating a moderate limiting impairment. This score was more frequent in group B (41%) than in the other groups (group A = 20.6%, group C = 34.8%). GCPS grade IV was more frequent in group C (19.7%) than in the other groups. No significant differences between groups were found with respect to depression scores. Group C had significantly higher scores for nonspecific physical symptoms than group A (p < 0.05).
Chronic pain is associated with severe and extensive psychological, social, and economic factors, with high demand on the health services, particularly primary care .
Studies measuring the impact of chronic pain on individual life and health tended to focus on specific conditions or groups of conditions with pain comorbidity .
There is evidence that TMD pain has a detrimental effect on physical health daily activity, psychological health, employment, and economic well-being .
The results of the current study showed that individuals suffering from migraine had more frequent social impairment as compared to TMD patients, who also present disability in accordance to a previous study . This result is likely related to the characteristics of pain that has been reported to be severe in headache and migraine individuals [33, 34] as compared to TMD patients that commonly suffer from moderate to severe pain [24, 34].
In this study, the comorbidity of migraine and TMD muscular pain determined a significant social impairment, and it is significantly more unfavorable than the singular disturbances.
A possible relation between temporomandibular disorders and headaches has been investigated by some authors [35–38]. Possible pathogenetic mechanisms have also been proposed. It has been suggested that active trigger points are highly prevalent in individuals suffering from tension-type headache or migraine and that their stimulation may induce typical headache symptoms. Furthermore, patients with headaches and migraine present an increased tenderness of pericranial tissues and muscles .
The possible relation between migraine and myofascial pain has been matter of debate [40–42]. It is possible that the activation of peripheral nociceptive stimuli through trigger points may lead to the activation of trigeminovascular system, via nucleus caudalis, in predisposed individuals, determining a migraine attack .
It has been shown that depressive and anxiety symptoms are risk factors for temporomandibular pain . In this study, individuals suffering from orofacial pain had moderate depression and somatization symptoms. This was also reported by Manfredini and coworkers  who found moderate to severe somatization and depression in individuals suffering from TMDs.
Our findings reveal that individuals with comorbidity of migraine and muscular TMD pain present a very important social impairment. Also, the comorbid pain is much more unfavorable than the singular disturbances. The comorbidity of migraine and muscular pain influences the psychological status of the individuals, determining higher somatization scores. This, in turn, could sensibly affect the therapeutical approach of these patients and affect the treatment outcomes. For these reasons, clinicians should be aware of collecting adequate anamnestic data since TMD patients often do not report comorbid pain on first referral. These patients should be screened for psychological distress and evaluated by physicians for their main pain complaints.
- Macfarlane TV, Blinkhorn AS, Davies RM, Ryan P, Worthington HV, Macfarlane GJ: Orofacial pain: just another chronic pain? Results from a population-based survey. Pain. 2002, 99: 453–8. 10.1016/S0304-3959(02)00181-1View ArticlePubMedGoogle Scholar
- Voscopoulos C, Lema M: When does acute pain become chronic? Br J Anaesth 2010, 105(Suppl 1):i69–85. 10.1093/bja/aeq323View ArticlePubMedGoogle Scholar
- Stern I, Greenberg MS: Clinical assessment of patients with orofacial pain and temporomandibular disorders. Dent Clin North Am. 2013, 57: 393–404. 10.1016/j.cden.2013.04.002View ArticlePubMedGoogle Scholar
- Sarzi-Puttini P, Vellucci R, Zuccaro SM, Cherubino P, Labianca R, Fornasari D: The appropriate treatment of chronic pain. Clin Drug Investig 2012, 32(Suppl 1):21–33. 10.2165/11630050-000000000-00000View ArticleGoogle Scholar
- Smith BH, Elliot AM, Chambers WA, et al.: The impact of chronic pain in the community. Fam Pract. 2001, 18: 292–9. 10.1093/fampra/18.3.292View ArticlePubMedGoogle Scholar
- Marini I, Paduano S, Bartolucci ML, Bortolotti F, Bonetti GA: The prevalence of temporomandibular disorders in patients with late whiplash syndrome who experience orofacial pain: a case–control series study. J Am Dent Assoc. 2013, 144: 486–90. 10.14219/jada.archive.2013.0150View ArticlePubMedGoogle Scholar
- Benoliel R, Sharav Y: Chronic orofacial pain. Curr Pain Headache Rep. 2010, 14: 33–40. 10.1007/s11916-009-0085-yView ArticlePubMedGoogle Scholar
- Friction JR, Schiffman E: Epidemiology of temporomandibular disorders. In Orofacial pain and temporomandibular disorders. Edited by: Friction JR, Dubner R. Raven, New York; 1995:1–14.Google Scholar
- Michelotti A, Cioffi I, Festa P, Scala G, Farella M: Oral parafunctions as risk factors for diagnostic TMD subgroups. J Oral Rehabil. 2010, 37: 157–62. 10.1111/j.1365-2842.2009.02033.xView ArticlePubMedGoogle Scholar
- Manfredini D, Guarda-Nardini L, Winocur E, Piccotti F, Ahlberg J, Lobbezoo F: Research diagnostic criteria for temporomandibular disorders: a systematic review of axis I epidemiologic findings. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011, 112: 453–62. 10.1016/j.tripleo.2011.04.021View ArticlePubMedGoogle Scholar
- Okeson JP, de Leeuw R: Differential diagnosis of temporomandibular disorders and other orofacial pain disorders. Dent Clin North Am. 2011, 55: 105–20. 10.1016/j.cden.2010.08.007View ArticlePubMedGoogle Scholar
- Bender SD: Temporomandibular disorders, facial pain, and headaches. Headache 2012, 52(Suppl 1):22–5. 10.1111/j.1526-4610.2012.02134.xView ArticlePubMedGoogle Scholar
- Graff-Radford SB: Temporomandibular disorders and other causes of facial pain. Curr Pain Headache Rep. 2007, 11: 75–81. 10.1007/s11916-007-0026-6View ArticlePubMedGoogle Scholar
- Yap AUJ, Tan KBC, Chua EK, Tan HH: Depression and somatization in patients with temporomandibular disorders. J Prost Dent. 2002, 88: 479–84. 10.1067/mpr.2002.129375View ArticleGoogle Scholar
- Velly AM, Look JO, Carlson C, Lenton PA, Kang W, Holcroft CA, Fricton JR: The effect of catastrophizing and depression on chronic pain–a prospective cohort study of temporomandibular muscle and joint pain disorders. Pain. 2011, 152: 2377–83. 10.1016/j.pain.2011.07.004View ArticlePubMedGoogle Scholar
- Poveda Roda R, Bagan JV, Díaz Fernández JM, Hernández Bazán S, Jiménez SY: Review of temporomandibular joint pathology. Part I: classification, epidemiology and risk factors. Med Oral Patol Oral Cir Bucal. 2007, 12: E292–8.PubMedGoogle Scholar
- Kindler S, Samietz S, Houshmand M, Grabe HJ, Bernhardt O, Biffar R, Kocher T, Meyer G, Völzke H, Metelmann HR, Schwahn C: Depressive and anxiety symptoms as risk factors for temporomandibular joint pain: a prospective cohort study in the general population. J Pain. 2012, 13: 1188–97. 10.1016/j.jpain.2012.09.004View ArticlePubMedGoogle Scholar
- Schokker RP, Hansson TL, Ansink BJ: Craniomandibular disorders in patients with different types of headache. J Craniomandib Disord Facial Oral Pain. 1990, 4: 47–51.Google Scholar
- Rantala MA, Ahlberg J, Suvinen TI, Nissinen M, Lindholm H, Savolainen A, Könönen M: Temporomandibular joint related painless symptoms, orofacial pain, neck pain headache, and psychosocial factors among non-patients. Acta Odonltol Scand. 2003, 61: 217–22. 10.1080/00016350310004089View ArticleGoogle Scholar
- Franco AL, Gonçalves DA, Castanharo SM, Speciali JG, Bigal ME, Camparis CM: Migraine is the most prevalent primary headache in individuals with temporomandibular disorders. J Orofac Pain. 2010, 24: 287–92.PubMedGoogle Scholar
- Gonçalves DA, Camparis CM, Speciali JG, Franco AL, Castanharo SM, Bigal ME: Temporomandibular disorders are differentially associated with headache diagnoses: a controlled study. Clin J Pain. 2011, 27: 611–5. 10.1097/AJP.0b013e31820e12f5View ArticlePubMedGoogle Scholar
- Plesh O, Adams SH, Gansky SA: Temporomandibular joint and muscle disorder-type pain and comorbid pains in a national US sample. J Orofac Pain. 2011, 25: 190–8.PubMed CentralPubMedGoogle Scholar
- Plesh O, Adams SH, Gansky SA: Self-reported comorbid pains in severe headaches or migraines in a US national sample. Headache. 2012, 52: 946–56. 10.1111/j.1526-4610.2012.02155.xPubMed CentralView ArticlePubMedGoogle Scholar
- Manfredini D, Winocur E, Ahlberg J, Guarda-Nardini L, Lobbezoo F: Psychosocial impairment in temporomandibular disorders patients. RDC/TMD axis II findings from a multicentre study. J Dent. 2010, 38: 765–72.PubMedGoogle Scholar
- Dworkin SF, LeResche L: Research diagnostic criteria for temporomandibular disorders: review, criteria, examinations and specifications, critique. J Craniomandib Disord. 1992, 6: 301–55.PubMedGoogle Scholar
- Visscher CM, Naeije M, De Laat A, Michelotti A, Nilner M, Craane B, Ekberg E, Farella M, Lobbezoo F: Diagnostic accuracy of temporomandibular disorder pain tests: a multicenter study. J Orofac Pain. 2009, 23: 108–14.PubMedGoogle Scholar
- The International Headache Society.., [http://www.ihs-headache.org/] The International Headache Society..
- RDC/TMD booklet.., [http://www.rdc-tmdinternational.org/Portals/18/Translations_RDC/RDC-Italian.pdf] RDC/TMD booklet..
- Smith BH: Chronic pain: a challenge for primary care. Br J Gen Pract. 2001, 51: 524–6.PubMed CentralPubMedGoogle Scholar
- Tjakkes GH, Reinders JJ, Tenvergert EM, Stegenga B: TMD pain: the effect on health related quality of life and the influence of pain duration. Health QualLife Outcomes. 2010, 2: 46. 10.1186/1477-7525-8-46View ArticleGoogle Scholar
- Dahlström L, Carlsson GE: Temporomandibular disorders and oral health-related quality of life. A systematic review. Acta Odontol Scand. 2010, 68: 80–5. 10.3109/00016350903431118View ArticlePubMedGoogle Scholar
- Stuginski-Barbosa J, Dach F, Bigal M, Speciali JG: Chronic pain and depression in the quality of life of women with migraine - a controlled study. Headache. 2012, 52: 400–8. 10.1111/j.1526-4610.2012.02095.xView ArticlePubMedGoogle Scholar
- Manfredini D, Borella L, Favero L, Ferronato G, Guarda-Nardini L: Chronic pain severity and depression/somatization levels in TMD patients. Int J Prosthodont. 2010, 23: 529–34.PubMedGoogle Scholar
- Diener HC: Headache: insight, understanding, treatment and patient management. Int J Clin Pract Suppl. 2013, 178: 33–6. 10.1111/ijcp.12049View ArticlePubMedGoogle Scholar
- Di Paolo C, Di Nunno A, Vanacore N, Bruti G: ID migraine questionnaire in temporomandibular disorders with craniofacial pain: a study by using a multidisciplinary approach. Neurol Sci. 2009, 30: 295–9. 10.1007/s10072-009-0098-7View ArticlePubMedGoogle Scholar
- Anderson GC, John MT, Ohrbach R, Nixdorf DR, Schiffman EL, Truelove ES, List T: Influence of headache frequency on clinical signs and symptoms of TMD in subjects with temple headache and TMD pain. Pain. 2011, 152: 765–71. 10.1016/j.pain.2010.11.007PubMed CentralView ArticlePubMedGoogle Scholar
- Schiffman E, Ohrbach R, List T, Anderson G, Jensen R, John MT, Nixdorf D, Goulet JP, Kang W, Truelove E, Clavel A, Fricton J, Look J: Diagnostic criteria for headache attributed to temporomandibular disorders. Cephalalgia. 2012, 32: 683–92. 10.1177/0333102412446312PubMed CentralView ArticlePubMedGoogle Scholar
- List T, John MT, Ohrbach R, Schiffman EL, Truelove EL, Anderson GC: Influence of temple headache frequency on physical functioning and emotional functioning in subjects with temporomandibular disorder pain. J Orofac Pain. 2012, 26: 83–90.PubMed CentralPubMedGoogle Scholar
- Fernández-de-Las-Peñas C, Cuadrado ML, Arendt-Nielsen L, Pareja JA: Side-to-side differences in pressure pain thresholds and pericranial muscle tenderness in strictly unilateral migraine. Eur J Neurol 2008, 15: 8–162. 10.1111/j.1468-1331.2007.02028.xView ArticleGoogle Scholar
- Fernández-de-Las-Peñas C, Cuadrado ML, Pareja JA: Myofascial trigger points, neck mobility and forward head posture in unilateral migraine. Cephalalgia. 2006, 26: 1061–70. 10.1111/j.1468-2982.2006.01162.xView ArticlePubMedGoogle Scholar
- Ballegaard V, Thede-Schmidt-Hansen P, Svensson P, Jensen R: Are headache and temporomandibular disorders related? A blinded study. Cephalalgia. 2008, 28: 832–41. 10.1111/j.1468-2982.2008.01597.xView ArticlePubMedGoogle Scholar
- Bevilaqua-Grossi D, Lipton RB, Napchan U, Grosberg B, Ashina S, Bigal ME: Temporomandibular disorders and cutaneous allodynia are associated in individuals with migraine. Cephalalgia. 2010, 30: 425–32.PubMedGoogle Scholar
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