A comparative study of condyle position in temporomandibular disorder patients with chewing side preference using cone-beam computed tomography
A comparative study of condyle position in temporomandibular disorder patients with chewing side preference using cone-beam computed tomography
复制标题
偏爱咀嚼侧的颞下颌关节紊乱症患者牙槽突位置的CT对比研究
DOI：
10.1111/joor.13293
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发表时间：
2022-01-11
影响因子：
2.9
通讯作者：
Jiang, Hua
中科院分区：
文献类型：
--
作者：
Ma, Junli;Wang, Jiazhu;Jiang, Hua
研究背景咀嚼偏侧（Chewing side preference，CSP）可引起颞下颌关节（temporomandibular joint，TMJ）的结构和形态改变，被认为是颞下颌关节紊乱病（temporomandibular disorders，TMD）的病因之一，但CSP患者的髁突位置尚不清楚。目的比较颞下颌关节紊乱病（TMD）患者有、无髁突复位（CSP）的髁突位置。方法对90例单侧TMD患者（69例CSP，21例非CSP）和20例无症状TMD患者进行锥形束CT检查。根据矢状面关节间隙的测量确定髁突位置。进行髁突位置的组间和组内比较。结果无症状组髁突的前、中、后位置几乎是随机的。无CSP患者的后髁明显多于无CSP患者（57.1% vs 30.0%，p < 0.05）。CSP患者咀嚼侧和非咀嚼侧的髁突分别有50.7%和42.0%位于后牙区，与无症状者和非CSP患者比较差异无显著性（p > 0.05）。CSP组与非CSP组患者有症状关节和无症状关节的髁突位置无显著差异。虽然没有CSP的患者在有症状的关节中比无症状的参与者有更多的后髁（p < 0.05），但CSP患者在有症状的关节中比无症状的参与者有更多的后髁（53.6% vs 30.0%，p = 0.054）。结论髁突位置不是区分CSP相关和非CSP相关TMD的有力指标。后髁不能作为TMD的一个指标。
Background Chewing side preference (CSP) could cause structural and morphological changes of temporomandibular joint (TMJ) and has been suggested as one aetiology of temporomandibular disorders (TMDs), but the condylar position in TMD patients with CSP is unknown. Objective To compare the condylar position in the TMD patients with and without CSP. Methods Ninety TMD patients with unilateral symptom (69 with CSP and 21 without CSP) and 20 asymptomatic participants received cone-beam computed tomography. The condylar position was determined based on the measurements of sagittal joint spaces. Intergroup and intra-group comparisons of the condylar position were performed. Results The condyles in asymptomatic participants located nearly randomly in anterior, centric and posterior positions. Patients without CSP had significantly more posterior condyles than asymptomatic participants (57.1% vs 30.0%, p < 0.05). In patients with CSP, 50.7% of the condyles on the preferred chewing side and 42.0% on the unpreferred side located posteriorly, reaching no significant level compared with the asymptomatic participants and patients without CSP (p > 0.05). The symptomatic joints and asymptomatic joints in patients with CSP and without CSP showed no significant differences in condylar position. While patients without CSP had significantly more posterior condyles in symptomatic joints than asymptomatic participants (p < 0.05), patients with CSP showed a trend towards more posterior condyles in symptomatic joints compared with the asymptomatic participants (53.6% vs 30.0%, p = 0.054). Conclusion Condylar position is not a strong indicator to differentiate CSP-related TMDs from non-CSP-related TMDs. Posterior condyle could not be viewed as one indicator of TMD.