牙列重度磨耗对髁突位置影响的X线研究

作者采用髁突位置判断最佳X线投照设计技术和读片方法,对牙列重度磨耗者与非重度磨耗者的颞颌关节体层片进行对照研究,观察牙列重度磨耗对髁突在关节凹中位置的影响。结果发现牙列重度磨耗组与非重度磨耗组的髁突位移及构成比无显著性差异,重度磨耗组无明显的髁突后移趋势,提示牙列重度磨耗不一定导致髁突后移。     

牙列重度磨耗(牙合)重建中的固定修复治疗

目的 :探讨应用固定修复治疗牙列重度牙合磨耗的疗效。方法 :对 5 8例牙列重度磨耗病例共制作 2 3 5个冠桥牙合重建修复体。结果 :重建后牙列形态与咬合、面下 1/ 3高度获得适度恢复 ,咀嚼功能良好。结论 :固定修复是一种用于牙列重度磨耗 牙合重建的治疗方法。修复中应重视基牙及对颌牙的治疗和调牙合、及暂时修复体的戴用     

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。     

咬合重建的研究进展

牙列重度磨耗足指当牙齿硬组织丧失量与年龄不成正比,丧失速率损害牙齿健康的病变。咬合重建是对牙列重度磨耗的一种特殊修复方式,指用修复方法对牙列的咬合状态进行改造和重新建立。本文对重度磨耗的危害、咬合重建疗效的评定及咬合重建方法的研究进展进行综述。     

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。     

牙磨耗及其测量方法

牙磨耗是口腔内一种常见的临床现象，包括天然牙列和人工牙的磨耗。本文从酸蚀、机械磨损、咀嚼磨耗这三方面阐述牙磨耗的原因，并重点对牙磨耗的口内及口外实验测量方法进行了综述。以期为深入研究牙磨耗提供理论及实验参考。     

牙列重度磨耗老年患者咬合重建的疗效观察

目的评价对牙列重度磨耗导致咬合垂直距离降低的老年患者进行咬合重建的疗效。方法老年牙列重度磨耗患者65例按有无牙列缺损和颞下颌关节紊乱（tempommandihulardisorders,TMD）分为3组。A组42例,牙列重度磨耗伴牙列缺损,不伴TMD。B组15例,牙列重度磨耗伴牙列缺损,且有功能性TMD。C组8例,牙列重度磨耗伴有功能性TMD,但无牙列缺损。A组和B组采用胎垫式可摘义齿,C组采用可摘式验垫重建咬合。65例患者随访45d～9年,根据咀嚼功能和颞下颌关节（temporomandibularjoint,TMJ）功能进行疗效评价。结果咀嚼功能方面,A组42例中40例达到优良,B组15例中14例达到优良,C组8例中7例达到优良。TMJ功能方面,A组仍无TMD病例,B组15例中14例TMJ功能恢复正常,C组8例中7例TMJ功能恢复正常。结论老年患者由于牙列重度磨耗导致的咬合垂直距离降低,有必要进行咬合重建修复,在正中耠位行验重建修复效果满意,可为其后固定修复提供参考。     

牙列重度磨耗对髁突位置影响的X线研究

作者采用髁突位置判断最佳Ｘ线投照设计技术和读片方法，对牙列重度磨耗者与非重度磨耗者的颞颌关节体层片进行对照研究，观察宦列重度磨耗对髁突在关节凹中位置的影响。结果发现牙列重度磨耗组与非重度磨耗且的髁突位移及构成比无显著性差异，重度磨耗组无明显的髁突后移趋势，提示牙列重度磨耗不一定导致髁突后移。     

老年患者牙列重度(牙合)磨耗的可摘式(牙合)重建修复

牙列重度牙合磨耗通常表现为牙体组织的广泛缺损,以及由此而引发的牙齿疾患和对咀嚼功能、口颌系统、颜面外观等的影响[1,2].老年患者由于本身的生理特点,加上大多数患者伴有缺牙时间长、缺牙数目多等因素,临床上将会表现为更复杂的牙齿排列和咬合状况.本文就这类患者牙列重度牙合磨耗牙合重建中可摘修复方面的问题进行总结.     

牙列重度磨耗He重建中的固定修复治疗

目的：探讨应用固定修复治疗牙列重度殆磨耗的疗效。方法：对58例牙列重度磨耗病例共制作235个冠桥He重建修复体。结果：重建后牙列形态与咬合、面下1／3高度获得适度恢复，咀嚼功能良好。结论：固定修复是一种用于牙列重度磨耗He重建的治疗方法。修复中应重视基牙及对颌牙的治疗和调He、及暂时修复体的戴用。     

Management of the severely worn dentition with different prosthetic rehabilitation methods: a case series

Clinicians are often faced with the challenge of restoring a severely worn dentition. Esthetic and functional rehabilitation of patients in this condition represents a noteworthy clinical challenge. Although treatment options for the severely worn dentition with reduced occlusal vertical dimension can be limited, providing a functional and esthetic restoration in these situations is crucial for restoring the patient's quality of life. Different treatment approaches for the rehabilitation of worn dentition are presented in this case series.     

牙列重度磨耗粘结复合树脂咬合面预增高咬合重建

目的:探讨牙列重度磨耗以粘接复合树脂预增高咬合,后行咬合重建修复的临床治疗新途径。方法:先采用粘接复合树脂直接修复牙列重度磨耗患者的咬合面,增高咬合,恢复垂直距离及正中关系,再以固定修复、固定-可摘局部义齿修复等方式行咬合重建。结果:4例牙列重度磨耗患者以粘接树脂预增高咬合均可有效升高咬合垂直距离,复合树脂粘接可靠,调简捷,患者对粘接复合树脂预增高咬合适应性好,永久性修复体完成后随访半年-1年,患者面部外形改善,咀嚼功能恢复良好。结论:牙列重度磨耗粘接树脂咬合面预增高咬合重建,可较为准确恢复咬合垂直距离,易于患者接受及配合,为固定式咬合重建创造了便利条件,作为咬合重建修复的新途径值得进一步研究。     

Esthetic rehabilitation of a severely worn dentition with minimally invasive prosthetic procedures (MIPP)

Restorative treatment of the severely worn dentition is typically indicated to replace deficient tooth structure, limit the advancement of tooth destruction, improve oral function, and enhance the appearance of the teeth. Minimizing removal of additional tooth structure while also fulfilling the desire of patients to have highly esthetic restorations can present a prosthetic challenge when the existing tooth structure is already diminished. This article presents a comprehensive minimally invasive prosthetic treatment approach using a lithium disilicate all-ceramic material for the esthetic rehabilitation of a severely worn dentition for a female patient diagnosed with S?jgren syndrome.     

Treatment of the worn dentition: 2

This is the second of two articles concerning the practical techniques involved in reconstruction of the worn dentition. Part 1 discussed approaches to managing occlusion, and practical techniques for restoring worn anterior teeth. This second article will describe the procedures involved when both anterior and posterior teeth are worn, and then give a guide to the management of the short clinical crown.     

Prosthodontic management of worn dentition in pediatric patient with complete overlay dentures: a case report

Overlay complete dentures are simple, reversible and economical treatment modality for patients with congenital or acquired disorders that severely affect the tooth development. It satisfies both the esthetic and functional demands where the extraction of teeth is not generally indicated. In pediatric patients, the overlay dentures establish a relatively stable occlusion that improves patient''s tolerance to the future treatment procedures for worn dentition. This clinical report highlights the imperative need of appropriate treatment strategy and application of maxillary and mandibular overlay dentures in a pediatric patient who suffered from congenitally mutilated and worn dentition.     

牙列重度磨耗患者热压铸瓷修复体的制作与效果评价

目的：探讨应用IPS e.max Press热压铸瓷对牙列重度磨耗患者进行咬合重建修复的可行性,并总结全瓷修复体的制作经验。方法：为1例牙列重度磨耗患者制作全瓷修复体,进行咬合重建。通过3个月暂时性修复体的试戴与咬合调整,建立最适下颌位,在此位置上设计和制作全瓷修复体。用面弓将上颌平面准确转移至半可调式架上,后牙蜡型采用功能性咬合熔模成形法,精确恢复牙解剖外形和咬合关系,前牙制作中形成前牙诱导咬合关系。修复后随访24个月,进行效果和功能评价。结果：随访24个月,患者修复后对外形、咀嚼功能满意,X线检查基牙牙周膜正常,无牙槽骨吸收迹象,颞下颌关节稳定。修复体检查结果显示,边缘密合,牙龈颜色、形态自然,无牙龈炎,修复体色泽自然逼真,未出现破裂、崩瓷、脱落、基牙冠折等并发症。结论：采用IPS e.max Press热压铸瓷治疗牙列重度磨耗,进行咬合重建的效果令人满意。     

A systematic approach to full-mouth reconstruction of the severely worn dentition.

Aesthetic and functional restoration of the severely worn dentition represents a significant clinical challenge. One of the most demanding aspects of such cases involves the development of sufficient restorative space, while simultaneously fulfilling aesthetic, occlusal, and functional parameters essential to long-term success. When evaluating and diagnosing a patient with severely worn dentition, emphasis must be placed on the occlusal prematurities preventing condylar seating into the centric relation position. Success in maintaining severe wear cases depends on the development of proper anterior guidance to allow for posterior disclusion within the patient's envelope of function.     

Restoring esthetics and anterior guidance in worn anterior teeth. A conservative multidisciplinary approach

BACKGROUND: Developments in adhesive dentistry have given the dental profession new restorative materials and technology to restore esthetics and function to the worn anterior dentition. This article illustrates, through a clinical case study, the clinical requirements for restoring esthetic harmony and functional stability to the worn anterior dentition. CASE DESCRIPTION: The author presents the case of a 24-year-old man who sought esthetic dental treatment because he was unhappy with the appearance of his maxillary anterior teeth. The review of his dental history revealed that he ground his teeth at night. The author performed a complete evaluation of the causes of the patient's bruxism and created a diagnostic preview to, among other things, develop the relationship between the condylar and anterior guidance and to establish the esthetic requirements for the final restorations. Treatment included periodontal recontouring, tooth preparation and placement of temporary and then permanent restorations; the patient also was given an occlusal guard to protect the restorations against future bruxing. CLINICAL IMPLICATIONS: Whatever the cause of occlusal instability, it is important that the restorative dentist be able to recognize its signs--such as tooth hypermobility, tooth wear, periodontal breakdown, occlusal dimpling, stress fractures, exostosis, muscle enlargement and loss of posterior disclusion. When restoring the worn dentition, the clinician should bear in mind the five P's: proper planning prevents poor performance.     

Occlusal Concepts in Full Mouth Rehabilitation: An Overview

Restoration of occlusion in patients with severely worn dentition is a challenging situation as every case is unique in itself. There is great apprehension involved in reconstructing debilitated dentition due to widely divergent views concerning the choice of an appropriate occlusal scheme for successful full mouth rehabilitation. This article is an overview of the various occlusal concepts/philosophies in full mouth rehabilitation which will help the clinician select an appropriate occlusal scheme for an individual case.