Saruhanoğlu Alp, Gökçen-Röhlig Bilge, Saruhanoğlu Ceren, Öngül Değer, Koray Meltem
a Faculty of Dentistry, Department of Oral and Maxillofacial Surgery , Istanbul University , Istanbul , Turkey.
b Faculty of Dentistry, Department of Prosthodontics , Istanbul University , Istanbul , Turkey.
Cranio. 2017 Jul;35(4):244-249. doi: 10.1080/08869634.2016.1216823. Epub 2016 Aug 16.
The current study aimed to investigate the frequency of signs and symptoms of temporomandibular disorders (TMD) among call center employees.
Workers from four call centers (CC) were invited to participate in this study. The examination was based on the Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD). The tenderness of the masticator muscles was assessed on both sides by bilateral palpation. The mobility of the mandible was measured with a plastic millimeter ruler on opening, lateral excursions, and protrusion.
In total, 124 call center employees with a mean age of 28.61 ± 4.71 (between 22 and 47 years of age) were enrolled in this study. There was no statistically significant relation between the numbers of calls answered in a day and teeth clenching, teeth grinding, earache, tinnitus, or pain on yawning/chewing. Only protrusive movement pain and joint noise were significantly higher among employees who answered more than 140 calls/day (p < 0.01). An evaluation of the TMD signs and symptoms in relation to job stress level revealed that job stress level significantly affected the incidence of headaches among call center employees (p < 0.01).
The present study demonstrated no statistically significant relation between TMD signs and symptoms and call center employees except protrusive movement pain and joint noise. This relation was seen only in the employees who answered more than 140 calls per day. Headache, teeth clenching, and TMJ noise were the signs and symptoms encountered most often in this study. Multicentered studies in different geographic locations should be conducted to eliminate the limitation of this study.
本研究旨在调查呼叫中心员工颞下颌关节紊乱病（TMD）体征和症状的出现频率。
邀请来自四个呼叫中心（CC）的员工参与本研究。检查基于颞下颌关节紊乱病研究诊断标准（RDC/TMD）。通过双侧触诊评估咀嚼肌两侧的压痛情况。使用塑料毫米尺测量下颌在开口、侧方运动和前伸时的活动度。
本研究共纳入124名呼叫中心员工，平均年龄为28.61±4.71岁（年龄在22至47岁之间）。一天内接听电话的数量与紧咬牙、磨牙、耳痛、耳鸣或打哈欠/咀嚼时的疼痛之间无统计学显著关联。仅在每天接听超过140个电话的员工中，前伸运动疼痛和关节弹响明显更高（p<0.01）。对与工作压力水平相关的TMD体征和症状进行评估发现，工作压力水平显著影响呼叫中心员工头痛的发生率（p<0.01）。
本研究表明，除前伸运动疼痛和关节弹响外，TMD体征和症状与呼叫中心员工之间无统计学显著关联。这种关联仅在每天接听超过140个电话的员工中出现。头痛、紧咬牙和颞下颌关节弹响是本研究中最常出现的体征和症状。应开展不同地理位置的多中心研究以消除本研究的局限性。
