小基托舌侧卡环可摘局部义齿63例

可摘局部义齿至今仍是牙列缺损的主要修复方法。传统的可摘局部义齿通常舌腭侧的基托较宽厚、固位卡环置于基牙唇颊侧[1]。当今人们崇尚自然美,尤其是那些单纯前牙缺失且缺牙数较少的青年患者往往不能接受上述传统可摘局部义齿。为此,笔者设计了小基托舌侧卡环可摘局部义?..     

胶连式可摘局部义齿基托折断的原因浅析

可摘局部义齿目前仍然是牙列缺失的主要修复方法之一,由于此类义齿体积大,部件多,戴入口腔后异物感明显,要求尽量缩小。这一要求与经久耐用之间常产生矛盾,加之树脂本身脆性大、易老化等缺陷,就常有义齿戴后不久出现折断。本文对1995-1999年期间所观察的66件基托折断的可摘局部义齿,就其折断的原因进行初步分析,并探讨其预防措施。临床资料折断的可摘局部义齿来源于1995年1月-1999年12月来本科门诊修理的66例患者,共66件可摘局部义齿。不包括人工牙、固位体折断义齿。男性38人,女性28人,年龄23-80岁。根据临床检查,折断的可摘局…     

无基托可摘局部义齿的临床应用

作者选择了４１例牙列缺损患者，为其设计并制作成无基托的可摘局部义齿，对其中的２９例作了追踪观察，效果良好。本文就无基托的ＲＰＤＳ的适应证，设计原则及患者的修复效果等方面进行了讨论。     

可摘局部义齿

20052037 隐形义齿在多个牙缺失病例中的应用；20052038 义齿大基板对口腔黏膜微循环的影响；20052039 集成于可摘局部义齿专家系统的二维有限元分析方法；20052040 研磨固位卡与附着体在可摘局部义齿中的联合应用；20052041 MKl附着体在肯氏Ⅱ类缺损中的应用体会；20052042 套筒冠可摘义齿修复多数牙缺失体会……     

分裂式基托设计在可摘局部义齿修复中的临床研究

目的:评价患者应用分裂式基托设计进行可摘局部义齿修复的效果.方法:23例牙列缺损且基牙松动患者进行32副分裂式基托可摘局部义齿修复,随访观察6个月至2年,在修复后即刻及修复后每隔6个月对基牙进行牙周测试,利用SPSS17.0统计软件对检测数据进行分析,评定义齿对基牙牙周情况的影响.义齿修复2年后进行患者满意度调查.结果:32副分裂式基托可摘局部义齿在固位和稳定、咀嚼功能、语言功能、外观、舒适性、坚固性等随访指标上均获得较满意效果.统计分析显示,修复两年后,基牙牙龈指数(gingival index,GI)与龈沟出血指数(sulcus bleeding index,SBI)有上升趋势,P＜0.05,差异有统计学意义;牙周袋深度(periodontalpocket depth,PD)与松动度(tooth mobility,TM)虽有上升趋势,但P＞0.05,差异无统计学意义.结论:分裂式基托可摘局部义齿设计具有满意的修复效果,不仅提高义齿的固位、稳定、美观、舒适,且有利于保留患者余留松动牙,有效改善以松动牙为基牙的活动义齿修复效果.     

可摘局部义齿基托表面形态对语音影响的分析

目的：分析可局部义齿腭部基托形态对发音的影响。方法：30例年轻志愿实验分别戴入上颌光滑基托和有腭皱基托,应用计算机语音分析系统(CSL)测量发／d／、／t／、／l／后第一、第二共振峰值。结果：发／d／音,两组基托的第一、第二共振峰差异均有显性。发／l／音,两组间在第二共振峰差异有显性。结论：腭皱作为一种有助于舌腭音发音的解剖定位标志,在义齿修复时理应考虑恢复。     

可摘局部义齿

弹性义齿与传统可摘局部义齿对牙周情况影响的比较,套筒冠-卡环联合同位在可摘义齿中的应用,第七届国际口腔磁性附着体专题研讨会纪要[编者按]     

可摘局部义齿对口腔微生态系的影响

口腔微生态系可分为牙面微生态系、黏膜微生态系和唾液微生态系等。作为治疗牙列缺损的有效手段之一,可摘局部义齿适用范围广,但它可能对口腔微生态系产生一定影响,从而导致龋病和牙周病的发生。本文就可摘局部义齿影响口腔微生态系的研究作一综述。     

可摘局部义齿卡环对基牙的影响

目的 研究可摘局部义齿卡环对基牙牙体牙周及义齿的修复效果的影响。方法 采用社会调查和门诊连续随访的形式,对被卡环损伤了的３９７颗基牙（１４６名患者的１７９件义齿）进行了调查分析。结果 基牙损伤与年龄、义齿使用时间、义齿类型及义齿质量有关。结论 戴牙时间越长,基牙发生损伤越重。主要原因是基牙与卡环的摩擦过多或卡环位置不当。     

可摘局部义齿

观测器在可摘局部义齿修复中的临床应用调查；He支托的设计对隐形义齿咬合力的影响；铸造支架与隐形义齿联合修复的临床应用；     

An Evaluation of Microwave-Polymerized Resin Bases for Removable Partial Dentures

Purpose The hardness, porosity, and adaptation of removable partial dentures fabricated with one heat-polymerized denture base resin and two resins designed for microwave polymerization were evaluated. Materials and Methods Five prostheses were evaluated for each resin. Adaptation of the denture bases to the master cast was evaluated by spatial orientation and mean weight of residual impression material. The prostheses were then embedded in epoxy resin and sectioned for evaluation of resin hardness (Knoop hardness) and microporosity. Results There were no significant differences in the adaptation of the acrylic resin bases for Acron MC and Ch Lucitone. There was no significant difference in the mean Knoop hardness values for any of the resin bases near and away from the metal. None of the denture bases showed porosity greater than 100 μm. Conclusions Both resin bases formulated for microwave polymerization were effectively polymerized around metal frameworks without adverse effects on resin hardness or porosity. Justi Denture Base material had poorer base adaptation than the other two resins.     

Maxillary Rehabilitation Using Fixed and Removable Partial Dentures with Attachments: A Clinical Report

Despite requiring dental crown preparation and possible root canal treatment, besides the difficulty of clinical and laboratory repairs, and financial burden, the association between fixed (FPD) and removable partial dentures (RPD) by means of attachments is an important alternative for oral rehabilitation, particularly when the use of dental implants and FPDs is limited or not indicated. Among the advantages of attachment‐retained RPDs are the improvements in esthetics and biomechanics, as well as correction of the buccal arrangement of anterior teeth in Kennedy Class III partially edentulous arches. This article describes the treatment sequence and technique for the use of attachments in therapy combining FPD/RPD.     

Fabricating Crowns to Fit Existing Removable Partial Dentures: An Illustration of Two Techniques

The prosthetic treatment of a structurally compromised abutment tooth supporting a removable partial denture may present a variety of restorative modalities. Ideally, a surveyed crown is made for the individual tooth, which is later followed by a new removable partial denture fit to the contours of the crown. Frequently, however, the removable partial denture is clinically acceptable, and remaking the prosthesis is not indicated. In these cases, the crown can be made to fit the existing removable partial denture. Fabricating crowns to fit existing removable partial dentures can be accomplished using a direct method, an indirect method, or combinations of these techniques. Direct techniques traditionally use acrylic resin and inlay wax intraorally to develop a custom pattern that captures the contours of the clasp assembly. Indirect techniques use a pick-up impression to allow the crown pattern to be waxed against the denture framework on a cast in the laboratory. Combination methods use either a direct-indirect or indirect-direct approach. The direct-indirect method develops the preliminary resin pattern directly on the tooth and finalizes the contours in wax on a master cast. The indirect-direct technique initiates a crown pattern on a die and completes it either intraorally or on the die after the intraoral refinements. This article reviews the literature for methods of fabricating surveyed crowns under existing removable partial dentures. Additionally, two cases are presented that illustrate an indirect and combination direct-indirect technique for making the restorations.     

Systematic Clinical Evaluation and Correction Procedures for Support of Removable Partial Dentures

Support, retention, and bracing are the three main functions of a direct retainer in removable partial dentures (RPDs). RPDs must have sufficient supporting ability for proper occlusal rehabilitation. Support ability depends on the fit, size, shape, and location of the occlusal rest. Support cannot be adjusted chairside in most cases. The purpose of this article is to present systematic evaluation criteria for support in an RPD and to describe methods for adjusting cast clasps with improper support. Appropriate design of RPDs and preparation of abutments are also described.     

New Clasp Assembly for Distal Extension Removable Partial Dentures: The Reverse RPA Clasp

Several clasp types are used in distal extension removable partial dentures. In some cases the terminal abutments have only distal retentive undercuts that can be occupied by bar clasps; however, bar clasps may be contraindicated with no suitable alternative. This article presents a reasonable solution by introducing a new clasp design as a modification to the well‐known RPA clasp. The design includes a mesial rest, proximal plate, and buccal retentive arm arising from the rest and extending to reach the distal retentive undercut.     

可摘局部义齿修复效果的调查

目的：研究可摘局部义齿的治疗结果并探讨与患者满意度有关的因素。方法：通过患者满意度的调查和临床检查，对63例戴可摘局部义齿5年以上的患者的治疗效果进行评价。结果：70％以上的患者对可摘局部义齿满意，约1／5的义齿需要修理，约1／3的修复体与基牙的龋患有关。结论：绝大多数患者戴可摘局部义齿5年后仍可使用修复体。     

Using a Visible Light‐Polymerized Resin to Fabricate an Interim Partial Removable Dental Prosthesis

An interim partial removable dental prosthesis (RDP) is any dental prosthesis that replaces some teeth in a partially dentate arch designed to enhance esthetics, stabilization, and/or function for a limited period of time, after which it is to be replaced by a definitive dental prosthesis. This article describes a technique that uses a visible light‐polymerized (VLP) resin as the base material for an interim partial RDP. This technique can be easily accomplished in a dental office or laboratory and results in a predictable dental prosthesis. This technique eliminates the need for laboratory processing.