牙列重度磨损咬合重建修复治疗方法的探讨

目的 探讨牙列重度磨耗患者行固定义齿咬合重建修复的可行性.方法 结合1例牙列重度磨耗患者,咬合垫佩戴3个月后,制作过渡性修复体,口内观察1年,然后行上下颌固定义齿最终修复,经过这一序列诊疗过程完成咬合重建.结果 患者使用最终修复体2年,美观满意,咀嚼效率良好,无咀嚼系统肌肉及颞下颌关节不适症状.结论 牙列重度磨耗的固定义齿咬合重建修复是一个复杂的序列治疗过程,治疗效果是满意的.     

牙列重度磨耗伴缺损老年患者两种咬合重建治疗的效果比较

目的:观察牙列重度磨耗伴缺损的老年患者分别采用垫式可摘局部义齿与固定义齿进行咬合重建治疗的效果,并进行对比研究。方法:24例牙列重度磨耗伴缺损的老年男性患者,分别采用垫式可摘局部义齿与固定义齿进行咬合重建治疗,其中垫式可摘局部义齿咬合重建组15例,固定义齿咬合重建组9例,并分别对患者治疗前后的自我感觉(美观、舒适)、临床表现、咀嚼效率、颞下颌关节紊乱病临床症状的变化等指标进行评估及分析。结果:垫式可摘局部义齿与固定义齿咬合重建治疗后,患者均主观感觉良好、临床症状改善、咀嚼效率增加,差异显著(P<0.01)。固定义齿咬合重建组患者较垫式可摘局部义齿咬合重建组患者主观感觉更好,咀嚼效率增加更多(P<0.05)。有颞下颌关节病症状的患者咬合重建后症状均有改善,两种咬合重建方法间未见明显差异。结论:垫式可摘局部义齿与固定义齿咬合重建治疗均能一定程度恢复牙列重度磨耗伴缺损老年患者的口颌功能,改善颞下颌关节病症状。采用固定义齿进行咬合重建治疗更具有美观、舒适、提高咀嚼效率的作用。     

中重度牙列磨耗一次性咬合重建修复的疗效观察

目的探讨中、重度牙列磨耗患者一次性咬合重建的临床效果。方法中、重度牙列磨耗患者23例,行一次性固定或活动义齿修复,随访并询问患者的主观感受、咀嚼情况、颞下颌关节区变化,摄X线片,了解义齿、牙根及颞下颌关节结构改变。结果患者普遍认为一次性重建易适应、咀嚼效率显著提高,无颞下颌关节区不适等症状。复查X线片示无明显异常。结论中、重度牙列磨耗患者选择性实施一次性咬合重建的临床效果良好。     

牙列缺损伴重度磨耗的咬合重建及修复

目的探讨牙列缺损伴重度磨耗咬合重建及修复方法。方法本文重点介绍了牙列缺损并伴有严重磨耗,面下1/3高度变短的病例,采用固定义齿与简单或垫式通可摘局部义齿进行联合性修复,以获得永久性咬合重建治疗。结果对牙列缺损伴重度磨耗的病例,可通过暂时性修复进行过渡,固定义齿与简单或垫式可摘局部义齿进行联合性修复以达到满意的疗效。结论合理的咬合重建修复治疗可有效恢复患者正中颌位关系及正常的咀嚼功能、治疗及预防颞下颌关节疾病、改善美观。     

重度磨耗伴末端游离缺失的套筒冠义齿咬合重建修复10例

目的 探讨牙列重度磨耗伴末端游离缺失的套筒冠义齿咬合重建修复的可行性。方法 回顾性研究10例牙列重度磨耗伴末端游离缺失的患者进行套筒冠义齿咬合重建修复后的临床资料,分析临床表现、诊疗特点,总结诊疗过程中的注意事项。结果 牙列重度磨耗临床表现、并发症多样,垫式活动义齿暂时性修复3个月后,行单颌或双颌套筒冠义齿咬合重建,修复12个整牙列,随访2年,患者满意度高,咀嚼功能恢复好,未出现再度磨耗,颞下颌关节稳定。结论 牙列重度磨耗伴末端游离缺失的套筒冠义齿咬合重建修复可行,诊疗过程较长,中短期疗效肯定。     

牙列重度磨耗伴缺损的可摘局部义齿重建修复

目的：探讨应用可摘局部义齿一次性咬合重建修复牙列重度磨耗伴缺损的可行性.方法：对17例牙列重度磨耗伴缺损的患者采用（耠）垫式可摘局部义齿行一次性咬合重建,治疗后1个月、3个月和6个月复诊,调查患者主观感觉、咀嚼效果、义齿稳定性;以及是否有颞颌关节不适.结果：患者咬合升高1.5mm-2.5mm.随访6个月,患者无不适,咀嚼功能改善明显,对义齿的美观和功能都满意.结论：对于牙列重度磨耗伴缺损的病例可以尝试应用可摘局部义齿进行一次性咬合重建修复.     

老年人牙列重度磨耗的固定义齿咬合重建修复

目的：探讨老年人牙列重度磨耗的固定义齿咬合重建修复的可行性，总结临床经验。方法：回顾性研究7例老年人牙列重度磨耗的固定义齿咬合重建患者临床资料，分析临床表现、诊疗特点，总结诊疗过程中注意事项。由一个典型病例介绍诊疗过程。结果：老年人牙列重度磨耗临床表现、并发症多样，[牙合]垫式活动义齿暂时性修复3个月后，单颌或双颌固定义齿咬合重建，修复12个整牙列，随访2～4年，患者满意度高，未出现再度磨耗，颞下颌关节稳定。结论：老年人牙列重度磨耗的固定义齿咬合重建修复可行，诊疗过程较长，中短期疗效肯定。     

牙列缺损伴重度磨耗的咬合重建序列治疗体会

目的：评价牙列缺损伴重度磨耗的咬合重建序列治疗的效果。方法：选取牙列缺损伴重度磨耗患者36例,采用固定-活动联合修复方法实施咬合重建,通过3年随访,观察临床修复效果。结果：咬合重建后36例患者取得较满意疗效。结论：有序、合理的咬合重建治疗可以恢复患者正常的咀嚼功能,缓解颞下颌关节紊乱病及牙齿敏感,改善美观。     

重度咬合磨耗患者固定修复重建咬合的临床观察

目的 探讨重度咬合磨耗患者用固定修复方式重建咬合的临床效果.方法 采用固定修复方式对12例咬合重度磨耗患者重建咬合,比较修复前后的临床表现、咀嚼功能.结果 12例患者修复后感觉舒适,咀嚼效率均增加,牙过敏和食物嵌塞均改善. 12例患者中,主观评价为美观者9例;颞下颌关节紊乱病症状改善.结论 用固定修复方试为重度咬合磨耗患者重建咬合,在美观和功能上具有较好的功效.     

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目的 评价SD球帽式附着体义齿在伴重度磨耗的肯氏Ⅰ类牙列缺损修复中的临床效果。方法 对2005年5月至2007年2月山西省人民医院就诊的16例下颌双侧末端游离牙列缺损患者采用SD球帽式附着体义齿修复，对重度磨耗的余牙行金属烤瓷全冠修复，重建患者丧失的咬合功能，此前患者均经牙合垫式可摘义齿修复并获得最佳咬合高度。采用过筛法进行咀嚼效率检测，比较二者的临床效果和咀嚼效率。结果 经过6个月观察，16例患者均认为附着体义齿美观、稳固性好，对修复效果满意，基牙未发现龋坏及松动，无颞下颌关节明显不适。统计学分析显示，各观察期球帽式附着体咀嚼效率高于传统的牙合垫式可摘义齿（P < 0.05）。结论 SD球帽式附着体用于伴磨耗的肯氏Ⅰ类牙列缺损的修复效果理想。     

下颌咀嚼运动与夜磨牙症特征相关性的初步探究

目的 探讨夜磨牙症各临床诊断标准和睡眠时下颌咀嚼运动发生频率的相互关系。方法 运用视频多导睡眠监测方法,对20例健康成人,具有至少以下一项临床症状和体征且诊断为夜磨牙症的实验参与者进行记录：1）有牙齿频繁磨耗的报告;2）至少有3颗牙的咬合面有牙齿磨损与牙本质暴露;3）早晨咀嚼肌症状;4）咬肌肥大。对咀嚼肌节律性运动（RMMA）和孤立强直性咀嚼肌收缩发作事件进行评分。将这些变量与临床症状和体征存在的相关性进行比较。对孤立下颌强直运动发作的患者和RMMA受试者的颞下颌关节紊乱病（TMD）发生率进行调查。结果 20例受试者中,RMMA事件发作的频率为（5.8±3.1）次·h-1,孤立强直性发作的频率为（2.1±0.9）次·h-1。室友报告有磨牙体征的RMMA事件显著高于磨牙体征者（P<0.05）;牙齿磨耗者的RMMA事件显著高于无牙齿磨耗者（P<0.05）。但是,RMMA事件的发生与早晨咀嚼肌症状或咬肌肥大之间无差异。RMMA发生者的TMD发生率显著高于孤立下颌强直运动发作者。结论 常用于诊断夜磨牙症的临床症状和体征可体现在睡眠期间不同的临床和生理方面的下颌运动,即在睡眠期间RMMA可反映牙齿磨耗的发生,而且TMD的发生风险更大。     

The use of a bruxchecker in the evaluation of different grinding patterns during sleep bruxism

A variety of problems involving the masticatory system can be partially attributed to parafunctional habits such as bruxism. These include occlusal trauma, abfractions, tooth migration, as well as temporomandibular dysfunction. Since bruxism is considered a contributing factor to the above-mentioned dental problems, it is essential to consider parafunctional habits in the diagnosis and treatment planning before doing any occlusal reconstruction. However, the problem lies in the lack or absence of a simple device or gauge useful to be able to diagnose and evaluate the occlusal schemes in the patient's grinding pattern. In this study, we have developed a very simple device (BruxChecker) for evaluating the grinding patterns in sleep bruxism. Using the BruxChecker, it was possible to visualize real or actual interferences during sleep bruxism. Therefore, examination of the grinding pattern using this device is necessary and crucial for making the proper treatment plan for each patient.     

牙列缺损伴重度(牙合)面磨损(牙合)重建修复的临床研究

目的 通过对不同类型牙列缺损并伴重度(牙合)面磨损的患者进行修复治疗,探讨(牙合)重建的有关问题.方法 选取牙列缺损并伴重度(牙合)面磨损患者69例,制取修复前研究模型,根据不同的缺损类型进行(牙合)垫式可摘局部义齿、固定义齿或固定-可摘义齿联合修复,随访3个月～4年,观察修复治疗效果.结果 患者的咀嚼功能明显改善,有颞下颌关节症状者,症状得到了缓解,无颞下颌关节症状者在咬合升高后未出现新的颞下颌关节症状.结论 对于牙列缺损伴重度(牙合)面磨损患者,(牙合)垫式可摘义齿及固定义齿修复均是(牙合)重建修复的有效方法.     

Mandibular dysfunction and periodontitis. A comparative study of patients with periodontal disease and occlusal parafunctions

Fifty-one patients (mean age, 47.3 years) with moderate to severe periodontal disease and 40 patients (mean age, 48.9 years) with symptoms related to bruxism (occlusal parafunctions such as grinding and/or clenching of the teeth) were compared with regard to periodontal conditions and signs and symptoms of mandibular dysfunction. The bruxists reported more symptoms of pain and dysfunction of the masticatory system than the periodontal patients. The clinical dysfunction index was significantly higher among the bruxists, while there was a similarity between the groups in the variation of occlusal conditions, except for occlusal wear, which was more pronounced in the bruxist group. Attrition was in general positively correlated to alveolar bone height. This correlation was stronger (and statistically significant) for the canines than for other teeth. Attrition was negatively correlated to tooth mobility. It is concluded that patients with moderate to severe periodontal disease and patients with bruxism/occlusal parafunctions are distinctly different with regard to signs and symptoms of mandibular dysfunction. The results support the opinions that there is no or only weak correlation between periodontal disease and bruxism, and between bruxism and occlusal status.     

The Use of a BruxChecker in the Evaluation of Different Grinding Patterns During Sleep Bruxism

Abstract

A variety of problems involving the masticatory system can be partially attributed to parafunctional habits such as bruxism. These include occlusal trauma, abfractions, tooth migration, as well as temporomandibular dysfunction. Since bruxism is considered a contributing factor to the above-mentioned dental problems, it is essential to consider parafunctional habits in the diagnosis and treatment planning before doing any occlusal reconstruction. However, the problem lies in the lack or absence of a simple device or gauge useful to be able to diagnose and evaluate the occlusal schemes in the patient’s grinding pattern. In this study, we have developed a very simple device (BruxChecker) for evaluating the grinding patterns in sleep bruxism. Using the BruxChecker, it was possible to visualize real or actual interferences during sleep bruxism. Therefore, examination of the grinding pattern using this device is necessary and crucial for making the proper treatment plan for each patient.     

Restoration of canine guidance on an occlusal splint using amalgam: a clinical report

A primary consequence of sleep bruxism is severe tooth wear. Although an occlusal splint is able to protect teeth, grinding may continue on its surface. This clinical report describes an approach to restore canine guidance on an occlusal splint, with amalgam, for a patient with sleep bruxism. This procedure allowed maintenance of the canine guidance for a period of time longer than 3 months, postponing the fabrication of a new splint.     

Evaluation of sleep bruxism by polysomnographic analysis in patients with dental implants

PURPOSE: The aims of the present study were to use polysomnographic analysis to confirm sleep bruxism (SB) and to evaluate clinical findings of dental implant treatment in SB patients. MATERIALS AND METHODS: The present study comprised the retrospective analysis of 368 patients with a total of 838 endosseous implants. Nineteen patients who experienced mechanical complications, such as implant or abutment fractures, loosened gold screws, or occlusal surface wear or damage, were selected for polysomnographic analysis to monitor sleep symptoms. Six patients in the study group were identified as having SB, and this was confirmed by polysomnographic analysis. RESULTS: The SB electromyographic episodes were at least 20% of the patients' maximum voluntary contractions while awake and were scored. Most of the bruxism episodes (80%) were seen in light sleep stages. Only 5% of bruxism episodes were detected during rapid-eye-movement sleep. Sleep stage recordings were similar in all individuals. Bruxism episodes did not cause arousals. Patients were unaware of their nocturnal parafunctional habits. Despite protection with night guards, all patients were reported to have continued bruxism. DISCUSSION: Since possible occlusal parafunctional habits may be evident in any stage of dental treatment, treatment outcome risks must be considered. CONCLUSIONS: Polysomnographic study was evaluated as an effective, low-cost method to confirm occlusal parafunctional habits during sleep. Precautions against SB in patients having dental implant treatment have not been properly clarified. However, night guard protection appears to have some validity in patients having sleep bruxism.