Temporomandibular dysfunction (TMD) can be described as a set of clinical conditions that includes disorders of the temporomandibular joint (TMJ) and/or the masticatory muscles that has a multifactorial origin, like bruxism, sleep alteration, trauma, among others. There are several ways to treat TMD, such as: occlusal splints, physiotherapy, viscosupplementation, among others. The aim of this case report was to show the new possibility in the treatment of TMD by means of a combined therapy using low-level laser (LLL) and vacuum therapies in the recovery process of two patients with TMD. A simultaneous LLL under 660 and 808 nm, 600 mW of power divided into six lasers outputs around the tip was used synergistically with a vacuum device under negative pressure between 100 and 150 mbar. This case report included 2 patients and both of them were diagnosed with TMD according to the research diagnostic criteria for temporomandibular disorders (RDC/TMD). Patients were treated for LLLT and vacuum therapy at the same time. The treatment was applied to the left and right sides of the face on the masseter muscles, temporal muscles on the previous fibers and TMJs. Two sessions per week were performed totaling eight sessions. Oral opening, visual analogue scale (VAS) and OHRQoL (oral health-related quality of life) measurements were evaluated by the Oral Health Impact Profile (OHIP-14) at three moments: pre-treatment (T0), after the eight treatment sessions (T1) and 30 d after the end of treatment (T2). The obtained results showed the improvement of muscle pain and oral opening accompanied by improved quality of life of the volunteers treated with a percentage of 84% in patient 1 and 100% in patient 2. Combined therapies (LLL and vacuum therapies) may be a complementary or alternative treatment to control pain and decrease the recovery time of normality masticatory muscles.

颞下颌功能障碍 (TMD) 可以被描述为一组临床病症，包括颞下颌关节 (TMJ) 和/或具有多因素起源的咀嚼肌疾病，如磨牙症、睡眠改变、外伤等。有多种治疗 TMD 的方法，例如：咬合夹板、物理疗法、粘性补充等。本病例报告的目的是在两名 TMD 患者的康复过程中，通过使用低强度激光 (LLL) 和真空疗法的联合疗法来治疗 TMD 的新可能性。在 660 和 808 nm 下同时进行 LLL，将 600 mW 的功率分为围绕尖端的六个激光输出，在 100 和 150 mbar 之间的负压下与真空装置协同使用。本病例报告包括2例患者，均根据颞下颌关节紊乱病研究诊断标准（RDC/TMD）诊断为TMD。患者同时接受 LLLT 和真空治疗。治疗适用于面部左侧和右侧的咬肌、先前纤维上的颞肌和颞下颌关节。每周进行两次会议，共计八次会议。口腔开放度、视觉模拟量表 (VAS) 和 OHRQoL（口腔健康相关生活质量）测量通过口腔健康影响概况 (OHIP-14) 在三个时刻进行评估：治疗前 (T0)，八次治疗后(T1) 和治疗结束后 30 天 (T2)。