Incidence of temporomandibular joint clicking in adolescents with and without unilateral posterior cross‐bite: a 10‐year follow‐up study

Among different malocclusions, posterior cross‐bite is thought to have a strong impact on the correct functioning of the masticatory system. The association between unilateral posterior cross‐bite (UPCB) and temporomandibular joint (TMJ) clicking, however, remains still controversial. The aim of this study was to investigate whether the presence of UCPB during early adolescence increases the risk of reporting TMJ clicking after a long‐term follow‐up. A longitudinal survey design was carried out in a group of 12‐year‐old young adolescents, who were examined at baseline for TMJ clicking sounds and unilateral posterior cross‐bite. After 10 years, 519 subjects could be reached by a telephone survey. Standardised questions were used to collect self‐reported TMJ sounds and to determine whether participants had received an orthodontic treatment. Logistic regression analysis revealed a significant association between unilateral posterior cross‐bite and subjectively reported TMJ clicking (odds ratio = 6·0; 95% confidence limits = 3·4–10·8; P < 0·0001). The incidence of TMJ clicking was 12%. At a ten‐year follow‐up, self‐reports of TMJ clicking were significantly associated with the presence of UPCB at baseline, but not with the report of having received an orthodontic treatment. Within the limitation of this study, the presence of unilateral posterior cross‐bite in young adolescents may increase the risk of reporting TMJ sounds at a 10‐year follow‐up. The provision of an orthodontic treatment, however, does not appear to reduce the risk of reporting TMJ sounds.     

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??Objective??To evaluate the effect of articular disc repositioning combined with orthodontic functional appliance in the treatment of juvenile bilateral temporomandibular joint ??TMJ??anterior disc displacement??ADD?? and  skeletal class ??malocclusion. Methods??Fourteen juvenile patients with bilateral TMJ ADD and skeletal class ?? malocclusion were selected from March 2016 to March 2018 in the Department of Oral Surgery??Ninth People’s Hospital??Shanghai Jiao Tong University School of Medicine. Magnetic resonance imaging ??MRI?? and cephalometric radiographs before surgery and  follow-ups were performed for all patients. Condylar height and relevant cephalometric radiographs were measured and compared by statistical analysis. Results??Compared with pre-surgery??MRI showed the condylar height increased ??1.74±0.98??mm during follow-ups after surgery ??P??0.001??. New generated bone was observed on all condyles. About 84.61% of the new bone formed at superior and posterior-anterior surface. Cephalometric radiographs showed that SNB increased ??1.83±1.56??°??P??0.001????pogonion position ??pog-G?? moved ??2.18±3.13??mm ??P = 0.028?? forward and incisor overjet decreased ??3.55 ± 1.86??mm ??P??0.001????whereas no significant changes were found in SNA??Sn - G Vert??Y-Axis??U1 - SN??IMPA ??L1-MP?? or U1-L1 ??P > 0.05??. Conclusion??Articular disc repositioning combined with postoperative orthodontic functional appliances can effectively promote condylar growth and reduce oral-maxillofacial deformities in juvenile patients with bilateral  TMJ ADD and skeletal class??malocclusion.     

吲哚菁绿荧光显像在乳腺导管内乳头状瘤手术中的应用

目的分析吲哚菁绿荧光显像在乳腺导管内乳头状瘤(breast intraductal papilloma)手术中的应用。方法选取本院2017年1～12月乳腺导管内乳头状瘤患者46例,在乳腺导管内乳头状瘤手术中对患者进行吲哚菁绿荧光显像。分析讨论吲哚菁绿荧光显像对乳腺导管内乳头状瘤检测准确性和手术成功率的影响。结果对46例乳腺导管内乳头状瘤患者进行吲哚菁绿荧光显像,所有患者均检验出乳房肿块,但在5例双侧发病患者中,仅3例患者确诊为双侧乳腺导管内乳头状瘤,其余2例患者未检查出双侧乳腺导管内乳头状瘤。而且检验过程中,显像清晰可见。并为之后的乳腺导管内乳头状瘤手术提供重要依据,增加手术完成率,本次研究手术成功率为97.83%(45/46)。结论在吲哚菁绿荧光显像下,能够精确诊断乳腺导管内乳头状瘤,并为之后乳腺导管内乳头状瘤手术做出引导,根据吲哚菁绿荧光素的SN定位,可有效观察乳腺导管内乳头状瘤发展情况,便于手术进行。     

阔筋膜重建环状韧带治疗陈旧性桡骨小头脱位的疗效

目的观察阔筋膜重建环状韧带治疗陈旧性桡骨小头脱位的疗效，为临床治疗提供参考。方法选择2010年6月-2012年5月收治的34例陈旧性桡骨小头脱位患者作为研究对象，均接受阔筋膜重建环状韧带治疗。术后随访6个月，以Mackay肘关节功能评分、Barthel指数等评价疗效，对比治疗前后患者肘关节功能、生活质量的差异性。结果与治疗前比较发现，治疗后患者肘关节功能明显改善，生活质量明显提高，差异具有统计学AX（P〈0．05）。结论阔筋膜重建环状韧带治疗陈旧性桡骨小头脱位，可明显改善患者的肘关节功能和生活质量，疗效具有一定的优越性，值得在今后的临床工作中予以推广应用。     

Serum cortisol level and disc displacement disorders of the temporomandibular joint

Temporomandibular disorders (TMD) are a significant public health problem, affecting approximately 5–12% of the population. Objectives: This retrospective cross‐sectional study investigated the relationship between 8 AM serum cortisol levels (8ASC) and disc displacement disorders (DDD) of TMD. One hundred and forty patients with DDD were recruited. Among them, 60 patients comprised the case group of disc displacement without reduction with limited opening (DDWORWLO, age 37·7 ± 17·22), and 80 were ‘other DDD’ for the control group (age 36·4 ± 13·08). The independent variables included domains of demography, history, malocclusion, comorbid symptoms, comorbid TMD and 8ASC. Data were analysed with the chi‐square test, logistic regression and receiver operating characteristic (ROC) curve. Results of multiple logistic regression showed that 8ASC was the only factor significantly related to DDWORWLO (P = 0·006). Receiver operating characteristic analysis of DDWORWLO and 8ASC indicated an area under the curve of 0·669, standard error of 0·049 and P value of 0·001. The adequate cut‐off point of 8ASC was 12·45 (μg dL^?1), with sensitivity of 0·636, and specificity of 0·729. 8 AM serum cortisol level can be used as a clinical clue to differentiate DDWORWLO from other DDD.