关节灌洗加透明酸治疗不可复性关节盘前移位

目的 探讨颞颌关节不可复性盘前移引起的严重张口受限的非手术疗法。方法 对59例不可复性盘前移（包括36例旋转移位）的张口受限患者，行多次关节灌洗，配合木楔被动张口训练，透明质酸腔注射治疗。结果 经3次治疗后颞颌关节活动度明显增大（P＜0．01）。基于无痛，无并发症。关节造影显示：仅3例关节盘部位复位。结论 该法操作简单，可反复进行，是治疗不可复性盘前移（包括旋转部位）引起张口受限的有效方法。     

应用颞颌关节镜治疗颞颌关节盘前移位的临床研究

目的：探讨颞颌关节镜治疗颞颌关节不可复性盘前移位的临床应用效果。方法：对98例颞颌关节不可复性盘前移位患者分别采用颞颌关节镜进行关节盘前松解复位灌洗、关节上腔粘连松解灌洗、单纯关节上腔灌洗等治疗方法,通过观察疼痛程度、张口度及侧向运动度的改变,评价其临床疗效。结果：灌洗治疗后患者张口度、侧向运动度和疼痛程度较治疗前均明显改善。关节盘前松解复位灌洗组和粘连松解灌洗组治疗后疼痛减少值、张口度及侧向运动度增加值明显高于单纯灌洗组。关节盘前松解复位灌洗组在张口度增加值及疼痛减少值的改变优于粘连松解灌洗组。结论：关节上腔灌洗可以作为颞颌关节内紊乱疾病的有效治疗方法,而针对不可复性盘前移位的患者,颞颌关节镜下关节盘前松解复位灌洗治疗则具有更好的疗效。     

医用几丁糖治疗颞下颌关节不可复性盘前移位的临床研究

目的　观察医用几丁糖关节腔内注射对颞下颌关节不可复性盘前移位的临床治疗效果。方法　将30例颞下颌关节不可复性盘前移位患者 ,按就诊序号半随机分为试验组和对照组。试验组患者用几丁糖 1 0ml关节上腔注射治疗 ,对照组患者用强的松龙悬液 1 2 5mg关节上腔注射。注射治疗后 1d、1 4d复诊 ,测量最大张口度。结果　注射后 1 4d ,试验组患者平均张口度恢复到 (36 73± 4 6 9)mm ,比注射前增加 1 1 73mm ;对照组患者平均张口度为 (2 8 5 3± 5 81 )mm ,比注射前增加 3 86mm。试验组张口度增加值明显大于对照组 (P <0 0 5 )。结论　医用几丁糖是一种有效的治疗颞下颌关节不可复性盘前移位的生物材料。     

颞下颌关节灌洗术与扩张术治疗不可复性关节盘前移位的对比研究

目的采用颞下颌关节上腔灌洗术与扩张术治疗不可复性关节盘前移位,通过对比评价两种方法的临床疗效。方法收集62例不可复性关节盘前移位引起张口受限的患者,分成两组,其中一组31例行关节上腔灌洗治疗;另一组31例行关节上腔扩张术,分析两组治疗前与治疗后1月患者张口度与疼痛值的变化情况并对其结果进行处理。结果两组患者治疗后的张口度与疼痛均较治疗前有显著改善,治疗后1个月,灌洗组患者的平均张口度增加11～34mm,达正常水平;扩张组的平均张口度增加6～29mm,仍处在张口受限的水平。两组患者张口度的改善有显著差异(P<0.01)。疼痛的改善在两组患者之间无显著差异。结论颞下颌关节灌洗术与扩张术均能改善不可复关节盘前移位患者的张口度,缓解疼痛。灌洗术的疗效较扩张术的疗效显著,不可复性关节盘前移位患者的治疗可遵循由简单到复杂,由创伤小到创伤大的顺序治疗方法。     

手法复位结合稳定型咬合板治疗急性颞下颌关节盘不可复性前移位的疗效观察

目的 探讨对急性颞下颌关节盘不可复性前移位保守治疗的认识及治疗策略的选择.方法 总结2018年5月—2020年5月本院颞下颌关节专科门诊诊治的20例急性颞下颌关节盘不可复性前移位患者,行手法复位结合稳定型咬合板治疗,3个月后对所有患者的关节盘复位情况和最大主动张口度进行评价,采用SPSS 24.0对数据进行检验分析.结果 20例患者最大主动张口度明显改善,由治疗前的(27.15±5.91)mm增加到(41.35±4.82)mm;20例患者在治疗结束后复查MRI显示关节盘复位13例(占65％),仍然不可复性盘前移位7例(35％).治疗3个月后最大主动张口度以及关节盘复位情况的比较,差异有统计学意义.结论 手法复位结合稳定型咬合板治疗急性颞下颌关节盘不可复性前移位可以有效恢复患者张口度,改善关节功能以及对于恢复盘-髁关系有较明显的效果.     

急性和慢性不可复性盘前移位临床对比研究

目的　探讨颞下颌关节紊乱病不可复性盘前移位急性和慢性分类对临床诊断、治疗和预后的指导意义。方法　分析连续接诊的 10 0例不可复性盘前移位病例 (急性 4 5例、慢性 5 5例 ) ,比较两组之间临床主诉、开口度、颞下颌关节功能、髁突和关节盘的影像学改变。结果　急性不可复性盘前移位主诉开口受限 ,下颌运动功能严重障碍 ,大部分病例髁突骨质正常 ,关节盘形态良好 ;慢性不可复性盘前移位主诉多为开口痛和 (或 )咀嚼痛 ,下颌运动受限 ,部分病例伴有咀嚼肌疼痛 ,相当一部分病例髁突骨质吸收破坏 ,关节盘变形、变性 ,关节盘附着松弛、撕裂 ,甚至关节盘穿孔。结论　对急性不可复性盘前移位应早期采取积极的治疗 ,恢复良好的盘 突关系 ,阻止关节盘和髁突的进一步损伤。     

透明质酸钠治疗颞下颌关节不可复性盘前移位的临床观察

目的 探讨透明质酸钠治疗颞下颌关节不可复性盘前移位的临床疗效.方法 34例颞下颌关节不可复性盘前移位患者随机分为试验组和对照组,各17例.试验组关节上腔内注射透明质酸钠注射液1 mL,对照组关节上腔内注射强的松龙注射液12.5 mg.术后0.5 h、1个月观察患者开口度和疼痛情况.结果 张口度和疗效,术后0.5 h,试验组和对照组差异无统计学意义;术后1个月,试验组和对照组差异有统计学意义.结论 透明质酸钠和强的松龙治疗颞下颌关节不可复性盘前移位短期疗效均较好,但长期疗效,透明质酸钠明显优于强的松龙.     

颞颌关节上腔灌洗术治疗不可复性关节盘前移位的临床研究

目的：评价颞下颌关节穿刺灌洗术治疗不可复性关节盘前移位的临床疗效。方法：关节上腔灌洗术治疗30例因不可复性关节盘前移位而引起张口受限的患者。结果：张口受限病程在6个月之内，关节冲洗疗效显著。结论：关节上腔灌洗术所需器械价廉易得，操作简单，疗效显著，在我国目前关节镜的普及率较低的情况下，具有较好的临床应用价值。     

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目的探讨关节腔灌洗术治疗早期颞下颌关节不可复性盘前移位临床疗效。方法对2006年5月至2007年5月鞍山市口腔医院口腔颌面外科收治的早期颞下颌关节不可复性盘前移位患者28例(35侧),用2%利多卡因和维生素B12混合溶液反复灌洗,每天1次,连续3d。治疗后平均随访3.2个月(1～15个月),记录患者疼痛、张口度等相关情况。结果治疗结束后所有患者的疼痛均有较大程度缓解或消失,张口度大幅改善,26例患者张口度恢复正常,但17例仍有关节弹响。总有效率为92.86%。结论关节腔灌洗术能够对部分早期不可复性盘前移位起到积极的治疗作用。     

高分辨率超声对颞下颌关节不可复性盘前移位的诊断价值研究

目的通过诊断性试验的方法,评价高分辨率超声在颞下颌关节不可复性盘前移位诊断中的价值。方法纳入35例临床初步诊断为颞下颌关节不可复性盘前移位患者的40侧颞下颌关节,所有关节均进行了高分辨率超声检查及MRI检查。以MRI检查结果作为金标准,计算高分辨率超声检查的敏感度、特异度、准确度、阳性预测值、阴性预测值、阳性似然比、阴性似然比。结果40侧颞下颌关节中,MRI确诊为不可复性盘前移位者23侧,非不可复性盘前移位者17侧。高分辨率超声诊断颞下颌关节不可复性盘前移位的敏感度、特异度、准确度、阳性预测值、阴性预测值、阳性似然比、阴性似然比分别为82.6%、94.1%、92.5%、0.95、0.80、14.04、0.19。结论高分辨率超声在颞下颌关节不可复性盘前移位中具有较高的诊断价值。     

Diagnosis and management of hemangiomas and vascular malformations of the head and neck

Oral Diseases (2010) 16 , 405–418 Vascular anomalies are congenital errors in vascular development. They frequently involve the head, neck, and oral cavity. Subdivided into vascular tumors (hemangiomas) and vascular malformations, vascular anomalies remain poorly understood. However, growing interest and recent advances in the diagnosis, management, and molecular characterization of these lesions are improving treatment strategies. The role of the multidisciplinary team cannot be overstated. This review provides both basic and up‐to‐date knowledge on the most common vascular anomalies encountered by physicians and practitioners. Because treatment options for vascular anomalies are widely variable and often debated, this report aims to provide a comprehensive approach to these lesions based upon current concepts and practical clinical experience.     

口腔颌面-头颈部胚胎型横纹肌肉瘤临床诊治探讨

目的:探讨头颈部胚胎型横纹肌肉瘤的临床特点、诊断、治疗及预后.方法:回顾性分析上海交通大学医学院附属第九人民医院2000-09--2010-10收治的12例头颈部胚胎型横纹肌肉瘤患者的临床资料.结果:12例患者中9例获得随访.5例术前化疗患者中3例短期疗效达到PR,1例达到MR,化疗有效率达到60%;8例患者行手术治疗...     

Colour and translucency of opaque-shades and body-shades of resin composites

The purpose of this study was to evaluate the optical properties--not only the translucency but also the colours--of opaque-shade resin composites. The CIELAB parameters (L*, a* and b*) of disks of A2 and opaque A2 (OA2) shades of Charisma (Heraeus-Kulzer), Solare (GC) and Filtek Supreme (3M) were evaluated on backings of black, white and the material itself to calculate the translucency parameter (TP) and the colour differences (delta E*) between A2 and OA2. A two-way analysis of variance (anova) for the TP indicated a less statistically significant TP value in the OA2 shade than the A2 shade for all products. As for the products, Charisma showed a statistically greater TP value than the other two products. Regarding the delta E* between A2 and OA2, all the products revealed clinically perceptible colour differences (delta E* > 3.3). Hence, we must take the colour differences of opaque-shade resin composites into consideration, as well as the translucency of the materials, for a clinically acceptable colour match of the restoration.     

种植体周围炎与牙周炎的类比探究

种植体周围炎症是种植失败的主要原因之一,包括种植体周围黏膜炎和种植体周围炎。种植体周围炎的发生、发展及治疗和预防与牙周炎存在一定的相似性,本文将种植体周围炎和牙周炎的流行病学、组织病理表现、始动因素、危险因素、治疗和预防等方面进行类比,探讨如何更好地预防和治疗种植体周围炎。     

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牙拔除术是一种常见的外科手术,术后因机体对拔牙创伤的生理反应会不可避免地引起局部出现程度不一的疼痛、肿胀,这种由手术创伤引起的疼痛、肿胀虽然是正常手术的继发过程,但会导致患者术后生活质量下降,并可使很多由于恐惧而不敢拔牙的患者延误了最佳治疗时机。本文就拔牙术后疼痛和肿胀的发生原因、临床表现、治疗方法和预防措施进行阐述,为临床上如何避免或减轻拔牙术后的疼痛和肿胀提供帮助。     

Assessment and comparison of phagocytic function and viability of polymorphonuclear leukocytes in saliva of smokers and non-smokers

OBJECTIVES

Tobacco use is one of the most important public health problems worldwide. It is also linked to impairment of normal immunologic surveillance and defence mechanism of polymorphonuclear leukocytes. Tobacco smoke and its components have been seen to affect the phagocytic ability and viability of polymorphonuclear leukocytes suggesting the pathogenesis of tobacco induced oral diseases. Aim of this study was to assess and compare the phagocytic function and viability of polymorphonuclear leukocytes in saliva of smokers and non smokers.

DESIGN

The study comprised of 35 smokers and 35 non-smokers, age matched. Saliva was collected by rinsing method and the polymorphonuclear leukocytes were separated. Phagocytic activity was determined by using latex spheres as targets. Cell viability was measured using trypan blue stain.

RESULTS

Salivary polymorphonuclear leukocytes in smokers showed significant reduction in the phagocytic activity by ingesting few latex spheres when compared to the non-smokers. The viability of these cells in saliva of smokers was significantly reduced.

CONCLUSIONS

The present study revealed reduced phagocytic activity and viability of salivary polymorphonuclear leukocytes in smokers compared to non-smokers. These findings indicate that smokers are more prone to gingival, periodontal and other oral diseases. Thus indicating that the health care professionals should encourage smoking cessation as an aid in preventing oral diseases.     

Combined effects of NaF and SLS on acid- and polysaccharide-formation of biofilm and planktonic cells

Bacteria grow preferentially attached to surfaces embedded in an exopolysaccharide matrix to form biofilms. In this mode of growth, bacteria often show reduced susceptibility to antimicrobials. The aim of this study was to investigate whether the combination of NaF and the detergent sodium lauryl sulphate (SLS) could result in additive effects on acid formation by planktonic and biofilm cells, as well as on extracellular polysaccharide formation. An additive inhibitory effect on Streptococcus mutans acid formation was observed, both in planktonic and biofilm cells. In dental biofilms, SLS alone and in combination with NaF reduced acid formation. Extracellular polysaccharide formation by S. mutans and saliva was reduced by SLS alone and in combination with NaF. In dentifrices and mouthrinse solutions, NaF and SLS are often present in combination. It remains to be determined whether an additive effect on acid formation may also occur in dental biofilms under different concentrations from those used in the present study, and whether the effects may be selective for certain bacterial species.     

Effects of zinc and copper on adhesion and hemagglutination of Prevotella intermedia and Prevotella nigrescens

This study investigated the mechanism of protein attachment to the surface of the putative periodontal pathogens Prevotella intermedia and Prevotella nigrescens in artificial gingival crevicular fluid, and ways to increase protein attachment to the bacterial cells. The effects of cations on protein attachment, bacterial adhesion, and hemagglutination were examined, and cation-binding components on both bacterial species were identified. The presence of cations, especially zinc, copper and cerium, increased attachment of human serum proteins to both bacterial species. In contrast, the presence of hydrophobic inhibitors or sugars had little effect. Protein attachment was reduced by heat treatment of the bacterial cells. Pretreatment of bacteria with human serum proteins inhibited adhesion of both species to buccal epithelial cells and hemagglutination. These effects were enhanced by the presence of zinc and copper during pretreatment. Using a chelating column, specific zinc- and copper-binding proteins were identified on the surfaces of both bacterial species.     

Impact of moderate and severe hypodontia and amelogenesis imperfecta on quality of life and self-esteem of adult patients

ObjectivesThe objective of this study was to investigate the impact of moderate and severe hypodontia and amelogenesis imperfecta on the quality of life and self-esteem of affected adult patients.MethodsForty one adult patients (aged 18–45 years) with clinical and radiological diagnoses of moderate to severe hypodontia and twenty seven patients diagnosed with amelogenesis imperfecta were age and gender matched with a control group of patients attending for routine dental care. Subjects completed the Oral Health Impact Profile [OHIP-49] and Rosenberg Self Esteem Scale. A paired t-test was used to analyse data; the test alpha level was set at P ≤ 0.05.ResultsThe results for hypodontia patients were significantly different from controls in six out of the seven OHIP-49 domains, the exception being the Handicap domain. Total scores were also significantly different between the two groups (P = 0.003). Self-esteem was not significantly different between the two groups (P = 0.98).For amelogenesis imperfecta patients the results were significantly different from control patients in four out of the seven domains of the OHIP-49 and also in the total scores (P = 0.01). When self-esteem was investigated there was no significant differences between the two groups (P = 0.92).ConclusionsModerate to severe hypodontia and amelogenesis imperfecta have marked negative impacts on the Oral Health Related quality of life of this patient population relative to controls. However, self-esteem was not significantly affected.