Effect of using Photobiomodulation, stabilization, and anterior repositioning splints on the pain level of subjects with temporomandibular joint disc displacement with reduction / Efeito do uso da terapia a laser de baixa potência, placas planas e placas reposicionadoras anterior, no nível de dor de indivíduos com deslocamento anterior do disco articular com redução

Objective: was to evaluate the effect of four conservative treatment modalities on the pain level of patients with temporomandibular joint (TMJ) anterior disc displacement with reduction (ADDwR). Material and methods:100 subjects (64 females and 36 males) were selected, divided into four groups, 25 patients of each. Subjects of Group I have been treated with behavioral therapy. Subjects of Group II had been treated with Photobiomodulation therapy (PBMT). Subjects of Group III had been treated by anterior repositioning splint (ARS). Subjects of Group IV had been treated by a stabilization splint. The pain was evaluated by visual analog score (VAS) from 0 to 10. Statistical analysis was done using one-way ANOVA test for comparison between groups. Within each group, a comparison between baseline and after treatment was done using paired t-test (p<0.05). Results: There was a statistical difference between the pain scores of the different groups after treatment (p≤0.05). Also, there were statistical differences between all groups (p≤0.05) except that between group II and group III (p˃0.05). Conclusion: The use of stabilization splint and ARS are effective non-invasive methods for reducing the pain level in the treatment of TMJ ADDwR cases.(AU)

Objetivo: avaliar o efeito de quatro modalidades de tratamento conservador no nível de dor de pacientes com deslocamento anterior do disco articular com redução. Material e Métodos: foram selecionados 100 indivíduos(64 mulheres e 36 homens), divididos em quatro grupos, 25 pacientes cada. Os indivíduos do Grupo I foram tratados com terapia comportamental. Os indivíduos do Grupo II foram tratados com terapia de fotobiomodulação. Os indivíduos do Grupo III foram tratados com placa de reposicionamento anterior. Os indivíduos do Grupo IV foram tratados com uma placa de estabilização. A dor foi avaliada pelo escala visual analógica (EVA) de 0 a 10. A análise estatística foi feita usando o teste ANOVA de uma via para comparação entre os grupos. Dentro de cada grupo, uma comparação entre a linha de base e após o tratamento foi feita usando o teste t pareado (p <0,05). Resultados: Houve diferença estatística entre os escores de dor dos diferentes grupos após o tratamento (p ≤ 0,05). Além disso, houve diferenças estatísticas entre todos os grupos (p ≤0,05), exceto entre o grupo II e o grupo III (p˃0,05). Conclusão: O uso de placa de estabilização e reposicionadora anterior são métodos não invasivos eficazes para reduzir o nível de dor no tratamento de casos de deslocamento anterior de disco articular sem redução.(AU)

Low Intensity Laser Therapy in Disc Derangement Disorders of Temporomandibular Joint: A Review Article / Terapia con Láser de Baja Intensidad en Trastornos de Alteración Discal de la Articulación Temporomandibular: Un Artículo de Revisión

Temporomandibular disorders embrace a number of clinical conditions that involves the masticatory musculature, temporomandibular joint (TMJ) and associated structures. The most frequent cause of TMJ disorders are disc derangement disorders which involve progressive slipping or displacement of articular disc. Various conservative treatment strategies for disc derangement disorders includes pharmacologic therapy, psychological counselling, treatment of parafunctional habits, use of occlusal splints and acupuncture which gives short term relief only. Recently, a non traumatic introduction to dentistry can be represented by low level laser therapy or soft laser therapy. It has proved to be an effective treatment modality in management of disc derangement disorders through its analgesic and anti- inflammatory effect. Therefore, the goal of this review article is to explore the use of low level laser therapy as an emerging trend in the management of disc derangement disorders of TMJ.

Los trastornos temporomandibulares abarcan una serie de condiciones clínicas que involucran la musculatura masticatoria, la articulación temporomandibular (ATM) y estructuras asociadas. La causa más frecuente de trastornos de la ATM es la alteración discal que implica el deslizamiento o desplazamiento progresivo del disco articular. Diversas estrategias de tratamiento conservador para los trastornos de alteración discal incluyen el tratamiento farmacológico, la terapia psicológica, el tratamiento de los hábitos parafuncionales, uso de férulas oclusales y acupuntura, que solamente dan un alivio a corto plazo. Recientemente, una introducción no traumática para la odontología puede ser representada por la terapia con láser de baja frecuencia o terapia de láser blando. Esta ha demostrado ser una modalidad de tratamiento eficaz en el manejo de los trastornos de alteración discal a través de su efecto analgésico y antiinflamatorio. El objetivo de este artículo es explorar el uso de la terapia con láser de baja frecuencia como una tendencia emergente en el tratamiento de los trastornos de alteración del disco de la ATM.

Disc Excision and Posterior Lumbar Interbody Fusion for Internal Disc Derangement / 대한척추외과학회지

STUDY DESIGN: This study reviewed prospectively 15 patients with chronic persistent low back pain who were treated with disc excision and posterior lumbar interbody fusion(PLIF). Outcomes of treatment were evaluated by a follow-up interview and x-ray studies. OBJECTIVES: To evaluate the efficacy of surgical treatment of patients with chronic persistent low back pain resulting from internal disc derangement (IDD) that does not respond to conservative treatments. SUMMARY OF LITERATURE REVIEW: Chronic persistent low back pain resisting to all known modalities of conservative treatments represents a difficult problem. The efficacy of any specific treatment methods for this group of patients is controversial. MATERIALS AND METHODS: Between 1994 and 2000, 15 patients were treated with disc excision and PLIF at Keimyung University Hospital from 1994 to 2000. The clinical outcomes were evaluated by postoperative follow-up interviews, and the fusion results were evaluated by x-ray studies. RESULTS: All patients responded properly to the follow-up evaluation. 66.6% of the patients had satisfactory results(13.3% excellent, 53.3% good, 26.7% fair, 6.7% poor), and a successful fusion was obtained in all of the patients. CONCLUSION: These results suggest that disc excision and PLIF for IDD patients is effective modality in treatment of IDD.

Comparison of Magnetic Resonance Imaging and Discography in the Diagnosis of Internal Disc Derangement / 대한정형외과학회잡지

PURPOSE: To compare the effectiveness of Magnetic Resonance Imaging and discography in the diagnosis of internal disc derangement (IDD) . MATERIALS AND METHODS: This study was confined to 90 discs of 30 patients diagnosed as IDD by MRI & disco-CT. We compared the pain nature of discogram, degree of annular tear in the disco-CT and degree of disc degeneration in MRI. The presence of HIZ (High Intensity Zone) in MRI was also compared with the pain of discogram. RESULTS: Those discs with more severe annular tears in the disco-CT showed more definite pain pattern in the discogram. More degeneration in the MRI was also correlated with more anatomical deterioration in disco-CT. Of the 27 discs with normal MRI, 6 (22%) showed severe pain provocation in discography. Of the 63 discs with degeneration in MRI, 14 (22%) showed no pain provocation in discography. Of all discs, HIZ was present in 16% (15/90) . When HIZ was present in a disc of a symptomatic patient, the possibility of it being a painful disc was 93%. CONCLUSION: In the diagnosis of IDD, MRI was helpful is seeing the degree of disc degeneration to rule out disc herniation or spinal stenosis. But the discogram is considered the only way for definite diagnosis of painful discs.