种植支抗压低上颌磨牙与下颌种植修复

目的:探讨片段弓技术联合部种植支抗压低上颌磨牙,为下颌牙缺失的种植修复提供足够的合间距离.方法:1)适应证:下颌后牙缺失伴上颌磨牙伸长而致的合间距离变小,使下颌种植义齿修复困难的成年患者.2)利用片段弓技术结合种植体支抗将上颌磨牙压低,获得上颌整齐的后牙区牙列及足够的种植修复空间.3)下颌缺牙区植入种植体,种植义齿修复.结果:17例下颌后牙缺失伴上颌磨牙伸长的病例,经片段弓联合种植支抗技术治疗后进行种植义齿修复,均达到理想的临床效果.讨论:下颌后牙长期缺失常常影响引起上颌磨牙伸长,导致下颌缺牙区的种植修复的间隙不够.利用片段弓技术联合种植支抗,将上颌伸长的磨牙压低,可以使缺牙区获得足够的种植空间,从而避免将伸长磨牙磨短或者杀髓,最终获得更好的功能及稳定的种植修复.结论:对下颌后牙区牙齿缺失伴上颌磨牙伸长病例,利用片段弓技术联合种植支抗来压低上颌磨牙,能获得更好的种植效果.     

种植体支持球帽附着体固位下颌覆盖总义齿的临床应用

目的：探讨球帽附着体固位的下颌种植覆盖总义齿的临床效果。方法：随机选择18例下颌牙列缺失的患者,植入2颗种植体,利用球帽附着体固位制作的覆盖义齿,随访6个月—4年,从患者主观感受和X射线检查两方面观察修复效果。结果：覆盖义齿的美观、舒适、固位稳定性好,咀嚼效率高。结论：种植体支持球帽附着体固位的下颌覆盖义齿修复下颌牙列缺失患者临床效果好。     

FRIALIT-2球帽固位种植覆盖义齿修复低平下颌牙槽嵴的疗效观察

目的：评价FRIALIT-2球帽固位的种植覆盖义齿修复下颌牙列缺失且牙槽嵴低平的临床效果。方法：将6例下颌牙列缺失且牙槽嵴低平的患者植入2颗FRIALIT-2种植法，利用FRIALIT-2球帽附着体固位制作覆盖义齿，进行12-24个月的临床追踪。结果：覆盖义齿的固位及使用效果均满意，种植体周围骨高度第一年平均降低0.8mm，有4颗种植体周围粘膜红肿，有3例患者需要重衬，有2例患者覆盖义齿折断，结论：球帽固位种植覆盖义齿是下颌牙列缺失且牙槽嵴低平者有效修复方式。     

球帽附着体种植覆盖义齿修复牙槽嵴重度萎缩无牙下颌

目的：总结分析BEGO种植体系统球帽附着体固位覆盖义齿,修复重度牙槽骨萎缩无牙下颌的临床应用与效果。方法：对重度牙槽骨萎缩、普通义齿固位极度不良的7例下颌无牙颌患者,在下颌骨前牙区植入2-3枚BEG0柱形螺旋种植体,共植入种植体17枚,后期采用球基台作球帽附着体固位覆盖义齿修复,定期复诊观察评价种植和覆盖义齿修复效果。结果：全部17枚种植体均顺利一期愈合,愈合周期平均3个月,球帽附着体覆盖义齿修复后经6-12个月观察,义齿稳定、咀嚼功能恢复理想,容貌改善明显,患者满意。结论：种植体支持球帽附着体固位覆盖义齿修复牙槽骨重度萎缩无牙下颌,可有效恢复咀嚼功能,改善患者容貌,提高患者生活质量,同时球帽附着体修复,简单经济,易于保持口腔清洁,可以推广。     

种植磁性覆盖义齿的临床效果观察

目的探讨种植磁附着体全口义齿对下颌牙槽嵴重度吸收的无牙颌患者的修复效果。方法采用C D I C牙种植体及配套磁性附着体,为15例下颌牙槽嵴重度吸收的无牙颌患者在下颌两侧第一前磨牙区各植入1枚种植体,4～6个月后制作下颌全口义齿并在组织面粘固磁体。进行咀嚼效率和患者满意度测定。结果种植磁附着体全口义齿在粘固磁体后及粘固后2周的固位力和咀嚼效率均较放置磁体前明显提高,且患者满意度提高。结论磁性固位种植体覆盖义齿用于牙槽骨严重吸收的无牙颌患者修复治疗的临床效果好。     

CDIC种植体联合磁性附着体在种植覆盖义齿修复中的临床应用

目的：探讨CDIC种植体联合磁性附着体制作种植覆盖义齿修复牙列缺失的临床效果。方法：选取12例牙槽嵴萎缩或全口义齿固位不良的牙列缺失患者,在CDIC组合式骨内结合种植体支持的基础上,行磁性附着体覆盖义齿修复,对义齿的固位、咀嚼功能和使用情况进行2年的随访观察。结果：31枚种植体修复前均达到骨结合,平均愈合周期5个月;磁性附着体覆盖义齿修复后,义齿稳定,咀嚼功能、容貌改善明显,达到患者对美观和功能的要求。结论：CDIC种植体联合磁性附着体制作的种植覆盖义齿是修复牙列缺失的一种行之有效的方法,其性价比高,更宜临床推广应用。     

种植固位体在先天性全口缺牙患者义齿修复中的应用

目的 :采用种植技术修复先天性全口缺牙或多数牙缺失。方法 :对 3例先天性全口缺牙或多数牙缺失病例 ,下颌骨植入MDIC种植体 ,行下颌覆盖种植可摘义齿修复。结果 :经种植修复后 3 -6个月的随访发现义齿在固位、咀嚼、语言功能及美观等方面的修复效果良好 ,患者满意。结论 :对因外胚层发育不全致牙齿及颌骨发育严重异常 ,常规方法无法进行义齿修复者 ,采用种植修复技术可以获得良好的修复效果     

locator种植覆盖义齿在下颌无牙颌修复中的应用

目的：探讨locator附着体种植覆盖义齿在下颌无牙颌修复中的临床应用效果。方法：对12例下颌无牙颌患者,每名患者下颌植入2枚种植体,共24枚,3~4个月后完成locator附着体覆盖义齿修复。术后2年期间进行随访。结果：24枚种植体均无松动,骨无明显吸收,患者对义齿咀嚼及固位满意。结论：locator附着体固位的种植覆盖义齿是下颌无牙颌患者理想的修复方式。     

下颌即刻负荷种植覆盖义齿3～5年临床观察

目的 探讨种植体支持的覆盖义齿即刻负荷后种植体的长期稳定性.方法 对北京大学口腔医学院·口腔医院第一门诊部就诊的10例牙列缺失患者采用Ankylos SynCone种植系统支持的即刻负荷覆盖义齿修复,均为下颌全颌覆盖义齿.10例均在下颌颏孔之间植入4枚种植体,共植入40枚,修复后平均随访3～5年,以共振频率分析和影像学检查评价种植体稳定性和边缘骨丢失情况.结果 所有种植体无松动脱落,均获得良好的骨结合,存留率为100％;种植体稳定性指数值均＞ 65,与临床检查种植体稳定性良好一致.种植体周软组织健康,未见X线连续透射影,边缘骨吸收＜1 mm.结论 下颌即刻负荷种植覆盖义齿修复3～5年随访临床效果满意.     

下颌种植覆盖义齿修复后满意度的调查分析

目的 比较牙列缺失患者行下颌半口义齿和下颌种植覆盖义齿修复的主观感受。方法 对16例戴用下颌半口义齿后又行下颌种植义齿修复的患者，采用自拟修复前初诊问卷和种植修复后问卷调查，由患者本人就诊时填写。结果 种植固定义齿与下颌半口义齿在舒适、功能、固位等方面存在明显差异。结论 牙列缺失患者行下颌杆卡式种植覆盖义齿，较下颌半口活动义齿修复能更好地满足患者需求，获得高质量的义齿。     

磁性附着体种植覆盖义齿修复下颌牙槽骨重度吸收无牙颌患者的临床观察

目的：探讨磁性附着体种植覆盖义齿修复下颌牙槽骨重度吸收无牙颌患者的临床效果。方法：对下颌牙槽骨重度吸收、牙槽嵴低平的患者,在下颌尖牙位置植入2枚种植体,3—6个月后完成磁性附着体覆盖义齿修复。每隔6个月复诊一次,观察覆盖义齿使用情况,并结合口内检查和X线检查评价使用效果。结果：修复完成后2—3年,种植体骨结合良好,未见明显骨吸收;义齿固位良好,患者对美观及功能效果满意。结论：磁性附着体种植覆盖义齿修复下颌牙槽骨重度吸收无牙颌患者,能明显示改善义齿固位和咀嚼效果。     

慢性中重度牙周炎患者应用种植修复的临床评价

目的：评估对中重度牙周炎患者经完善的牙周治疗及Ⅱ-Ⅲ度松动牙拔除后所导致的牙列缺损及牙列缺失所采用的单冠,联冠,全颌种植义齿修复的远期疗效。方法：共计十例患者经完善的牙周治疗,病情稳定后延期植入80枚种植体,即刻植入16枚植体,5-7个月种植义齿修复,根据种植体与牙槽骨之间的X线影像,牙周袋深度及临床检查等作为评价指标,评价负载后的修复效果。结果：96枚种植体中,其中两枚即刻种植于术后3周脱落,即刻种植成功率87%,种植体的平均存留率为97%,承载3.5年后骨吸收高度平均为（1.73＋0.13）mm。结论：对中重度牙周炎进行牙周治疗,采取慎重态度,运用正确的种植方式,修复方法,则可减少牙槽骨的吸收,并获得理想的修复效果,但同时要坚持定期的口腔护理,但对这类患者的骨吸收还需进一步的远期观察。     

The effect of different mandibular dentures on antagonistic maxillary ridge

PURPOSE: Is to evaluate the antagonistic, maxillary ridge resorption for different prosthetic modalities mainly mucosa-supported mandibular complete overdentures, combined mucosa implant-supported mandibular complete overdenture, and lower conventional complete dentures. MATERIALS AND METHODS: Fifteen completely edentulous patients were divided into 3 groups; 5 patients each. Group I patients received maxillary conventional denture and mandibular overdentures retained by magnet attachment on 2 implants (mainly mucosa-supported overdenture). Group II patients received maxillary conventional denture and mandibular overdentures retained by bar attachment on 2 implants (combined mucosa implant-supported overdenture). Group III patients received upper and lower conventional complete denture. All patients were evaluated clinically and radiographically immediately after insertion and after 1 and 2 years. Panoramic radiographic film was used to evaluate the antagonistic maxillary ridge resorption. RESULTS: Indicated a more pronounced annual bone resorption of the antagonistic maxillary ridge after 2 years in patients with conventional complete denture wearers when compared with patients with combined mucosa implant-supported mandibular complete overdenture and mainly mucosa-supported mandibular complete overdenture groups. CONCLUSION: Using a combined mucosa implant-supported mandibular complete overdenture the amount of antagonistic maxillary alveolar bone resorption increases when compared with the mainly mucosa-supported complete overdenture.     

Telescopic Overdenture Supported by a Combination of Tooth and an Implant: A Clinical Report

The conventional modality of treatment of partial edentulousness with reduced number of teeth was to render them complete edentulous and provide them complete denture or an overdenture with support of few remaining teeth. The goal of maintenance of roots are to prevent alveolar bone resorption, provide better load transmission, maintain sensory feedback and achieve better stability of denture with emphasis on psychological aspect of not being completely edentulous. Over the recent past titanium dental implants have been successfully used as tooth replacement with predictable results. A combination of tooth and implant support is well documented for fixed partial dentures but rarely for overdentures. This clinical report aims at evaluation of tooth root and implant supported mandibular overdenture treatment with telescopic coping.     

即刻种植与种植体早期加载的临床研究

目的探讨即刻种植与种植体早期加载的临床效果。方法患者37例，拔牙后即刻植入64枚种植体。36枚为Ⅰ期完成手术，其中无牙颌患者覆盖义齿的种植体17枚均即刻加载；14枚种植体于术后1～2个月早期加载，22枚种植体于3～4个月加载。28枚3～6个月后行Ⅱ期手术，常规修复。结果全部种植体稳定无松动，种植体周围无炎症。X线片未见明显骨吸收，即刻加载和即刻修复的病例与常规方法修复的种植体周围龈袋深度差异无统计学意义。结论即刻种植与种植后早期加载缩短了种植修复疗程，其疗效与常规方法修复无差异。     

无牙颌种植义齿修复设计与病例分析

目的:通过病例分析讲解无牙颌种植义齿修复设计.方法:对3个典型无牙颌病例进行全面综合检查,提出设计方案,进行种植义齿修复,并分析修复效果,总结无牙颌种植修复的经验.结果:3个无牙颌病例经过种植义齿修复后,义齿固位稳定,功能良好,美观舒适,长期成功率高.结论:在无牙颌种植义齿修复设计中应注意①同位方式转变(可摘变固定);...     

Chewing performance and occlusal contact area with the shortened dental arch

The aim of this study was to investigate the effect of the loss of posterior teeth on the effectiveness of mastication. To evaluate this, chewing performance and occlusal contact area were investigated in 10 edentate subjects having implants stabilising a mandibular overdenture. A copy of the original lower denture was made for each subject, with removable teeth, which could be separated to convert a complete dental arch to a shortened dental arch, an extremely shortened dental arch, or a broken dental arch. Both post canine occlusal contact area and chewing performance demonstrated significant differences between the different arches. It was concluded that chewing performance is reduced by removing posterior teeth from implant stabilised mandibular complete dentures.     

创伤性牙缺失伴骨缺损的种植修复临床探讨

目的:观察口腔颌面部严重创伤后牙缺失伴骨缺损的种植修复临床效果。方法:颌面部严重创伤后牙缺失伴骨缺损患者20例,其中多颗牙连续缺失者12例,共植入ITI Straumann等常用牙种植体65枚,其中5例行骨劈开+骨挤压+骨引导再生(guided bone regeneration,GBR)技术。2～6个月后行上部结构修复,定期随访,检查种植体骨结合情况、种植体周围软组织与修复体情况。结果:本组病例修复后经1～5年的临床观察,除1例所植入的5枚种植体中的1枚,在修复后3年脱落,其余患者各项评价指标均良好,种植体存留率为98%。结论:颌面部严重创伤后的牙列缺损,尤其多颗牙的连续缺失,很难采用其他固定修复方法来完成。种植修复具有不损伤余留牙、美观舒适、咀嚼效果好等优点,是一种良好的修复方法。     

不同基牙牙周状况下双侧游离缺损冠外附着体义齿的三维有限元分析

目的：探讨不同基牙牙周状况下,下颌后牙双侧游离缺损冠外附着体义齿支持组织的应力分布情况。方法：建赢下颌双侧67游离缺损冠外附着体义齿修复时基牙牙周健康和基牙牙周吸收的三维有限元模型,分析垂直载荷下基牙牙周状况不同时,基牙牙周组织及缺牙区牙槽嵴的VonMises应力分布。结果：与牙周健康的模型相比,当第二双尖牙牙周吸收1／3时,远中基牙牙周膜和牙槽骨的最大应力值均增加了两倍多;当第一和第二双尖牙牙周均吸收l／3时,远中基牙牙周膜和牙槽骨的最大应力值是基牙健康时的四到五倍。随着牙周吸收的基牙数目的增加,缺牙区牙嵴的最大应力值增加了47％。增加基牙数目可显著降低远中基牙的牙周组织和缺牙区牙嵴的应力,使义齿支持组织的应力分布更为均匀。结论：冠外附着体义齿修复下颌双侧后牙游离缺损时,若两侧只有第二双尖牙牙周吸收1／3时,修复设计时可考虑增加基牙数目,若第一和第二双尖牙牙周均有吸收则不建议再选作附着体义齿基牙。     

The prosthodontic rehabilitation of malpositioned implants in a patient with basal cell carcinoma: a clinical report

This clinical report describes the prosthodontic rehabilitation of a patient with a partially edentulous maxilla and compromised mandibular anatomy caused by resection of bone due to basal cell carcinoma. Placement of a fibula bone graft was followed by placement of 2 implants. The implants were malpositioned in the anteroposterior plane due to the altered form of the alveolar bone. Prosthodontic treatment included a maxillary removable partial denture and a mandibular partial overdenture supported by implants and remaining teeth.