BLB种植系统在前牙修复中的美学评价

目的：探讨BLB种植系统在前牙缺失修复中的美学效果。方法：对86例前牙缺失的病人共植入BLB种植体169枚,术后4个月修复,并分别于修复后0,6,12个月由患者与随访医生对修复体的外形、颜色、牙龈形态、色泽、丰满度、龈缘曲线、牙间乳头高度、修复体与邻牙的协调性八个方面进行评价。结果：86例患者,修复后0,6,12个月满意度分别为92．6％、94．9％和95％。结论：BLB种植系统操作简单,基台可调磨,应用于前牙区修复可以获得较好的美学效果。     

种植暂时修复体在上颌前牙种植美学修复中软组织处理技术

目的:种植美学修复中对于种植体周围软组织的精确塑形并将最终塑形好的软组织轮廓精确的转移到模型上,这一中间环节对种植的最终美学修复效果至关重要。本研究目的旨在探讨种植美学修复中应用种植暂时修复体对种植体周围软组织进行诱导塑形的技术要点及其临床效果。方法:2005年10月至2009年2月共57例连续在北京大学口腔医院种植科就诊的上颌前牙缺失患者纳入本研究,所有患者均采用种植暂时修复体对种植体周围软组织进行诱导塑形,并对最终种植修复体进行修复效果的美学评估。美学评价指标包括牙龈乳头水平及种植体唇侧软组织丰满度。结果:57例患者共植入73枚种植体,平均追踪时间32.7个月(24-64个月),至最后一次复查未见种植体脱落。57例中单牙缺失43例,相邻2个牙位缺失7例,多牙缺失7例。修复后6个月与修复后2年相比牙间乳头由I度变为I I度2个牙位;牙龈唇侧丰满度由I I度变为I度2个牙位,I度变为0度4个牙位,但无统计学差异(P>0.05)。结论:尽最大可能保存软硬组织的形态结构并重建与重塑软组织是治疗过程中需要考虑的主要因素。而修复过程中应用种植暂时修复体对种植体周围软组织进行诱导塑形,精确确定基台及上部结构的的形态与大小,将对最终美学修复效果起到至关重要的影响。     

即刻种植修复上前牙的临床美学疗效观察

目的:评价上颌前牙即刻种植即刻修复的临床关学效果.方法:临床选择26例上前牙残根患者,在拔牙后即刻植入 Xive种植体26枚,同时接入基台行复合树脂临时冠/桥修复,6个月后,行永久性修复.种植后嘱患者按期复查,评价应用效果.结果:种植牙修复后咀嚼功能恢复良好,种植体周围软组织健康美观.修复体单冠和修复基台的接缝位于龈下.种植牙给人以从龈下长出来的视觉效果.24名患者对修复体及其临床应用效果和美观效果都评价为满意,1枚种植体发生周围炎,1颗烤瓷冠崩瓷.满意度为92.31%.结论:Xive种植体在上颌前牙缺失即刻种植即刻修复中能够获得满意的临床效果.但要注意种植中软、硬组织和修复体的美学处理.     

前牙美学区种植义齿个体化修复及临床评价

目的:针对前牙美学区牙列缺损且修复条件异常的患者,选取不同修复方案进行个体化修复并评价其临床效果。方法:依据纳入标准,选取接受种植修复治疗并完成前牙美学区个体化修复的患者46例、共58颗种植修复体作为研究对象,随访3～24个月,观察临床效果并利用前牙区红白美学指标给予评分。结果:研究对象年龄18～69岁,平均随访期12.6个月。所有植体均获得良好骨结合,未见植体失败或种植体周围炎病例。依据红白美学标准评估3个月时种植修复体,红色美学低分段者占1.72%,中分段者占44.83%,高分段者占53.45%;白色美学低分段者占0%,中分段者占20.69%,高分段者占79.31%。结论:前牙美学区个体化修复方案可有效改善缺牙患者的外观,及时复诊随访和口腔卫生维护有利于避免种植体及修复体并发症,长期效果有待观察。     

前牙区牙种植即刻修复的临床疗效观察

目的:评价前牙区牙种植即刻修复的临床效果.方法:对33例前牙缺失患者植入48颗种植体(均为Xive及3I种植系统),术后行即刻临时冠修复,3～6个月后行最终烤瓷冠修复,并对其进行定期临床观察和放射学检查.结果:修复后经3～50个月观察,所有病例全部成功,美学效果良好,患者均较满意.结论:选择合适的病例,在前牙区行牙种植即刻修复可以取得良好的临床效果.     

即刻种植和早期种植对前牙美学区种植体周软组织影响的对比研究

目的 对比研究种植体即刻种植和早期种植对前牙美学区种植体周软组织的影响.方法 22例单颗前牙缺失病例,A组12例,拔牙后即刻植入Zimmer TSV种植体;B组10例,拔牙后早期植入Zimmer TSV种植体.A、B两组在种植体植入6个月后氧化锆全冠永久修复.修复后6~12个月复查,测定红色美学评分(pink esthetic score,PES).对数据进行统计学分析.结果 修复后6~12个月,PES总分整体均数为9.27(美学效果可接受).即刻种植组与早期种植组之间,PES总分、单个PES评分点之间的差异无统计学意义(P>0.05).在各个PES评分点中,近、远中龈乳头高度与缺牙原因,远中龈乳头、牙槽骨缺损与牙龈生物型,唇侧牙龈高度与缺失牙位具有显著相关性.结论 即刻种植和早期种植对前牙美学区软组织美学效果的影响无显著差异.前牙美学区种植修复时,软组织美学效果受缺牙原因、牙龈生物型、缺失牙位的影响.     

氧化铝全瓷冠修复前牙牙体缺损的临床效果评价

目的探讨氧化铝全瓷冠修复前牙牙体缺损的临床疗效。方法 Procera氧化铝全瓷冠修复前牙牙体缺损患者174例,患牙327颗,6个月后参照美国公共健康协会的修正标准评价修复体形态、基牙继发龋、修复体边缘密合度、修复体磨损及折裂情况。结果 174例327件Procera氧化铝全瓷冠修复体复诊154例292件,修复体边缘适应性的合格率为100%,修复体形态合格率为99.7%,磨损和折裂的合格率是99.7%,无基牙继发龋,仅1件修复体崩瓷。患者对美学效果均感满意。结论 Procera氧化铝全瓷冠修复前牙牙体缺损临床效果理想,美学效果良好。     

即刻种植修复上前牙的临床美学疗效观察

目的：评价上颌前牙即刻种植即刻修复的临床美学效果。方法：临床选择26例上前牙残根患者,在拔牙后即刻植入Xive种植体26枚,同时接入基台行复合树脂临时冠/桥修复,6个月后,行永久性修复。种植后嘱患者按期复查,评价应用效果。结果：种植牙修复后咀嚼功能恢复良好,种植体周围软组织健康美观。修复体单冠和修复基台的接缝位于龈下,种植牙给人以从龈下长出来的视觉效果。24名患者对修复体及其临床应用效果和美观效果都评价为满意,1枚种植体发生周围炎,1颗烤瓷冠崩瓷。满意度为92.31%。结论：Xive种植体在上颌前牙缺失即刻种植即刻修复中能够获得满意的临床效果。但要注意种植中软、硬组织和修复体的美学处理。     

15例上颌前牙种植的美学临床研究

目的：评价ITI种植系统用于上颌前牙列缺损修复的临床应用和短期疗效并总结牙种植治疗中的经验教训。方法：50例患者的缺牙区植入ITI种植体78颗并完成义齿修复,临床观察12～36个月,其中15例为上颌前牙区种植美学修复。6例上颌植入区骨量不足者,用Bio-Oss人工骨粉植入缺损区及Bio-Gide可吸收生物膜覆盖。结果：50例患者总共78颗种植体稳固无松动,种植部位无疼痛或不适,短期种植成功率100%。2颗上颌前牙种植修复后牙龈乳头缺失。患者满意度为92.3%。结论：ITI种植系统在牙列缺损修复中有的成功率很高,但患者对前牙缺损修复美学效果要求也越来越高,软组织的处理对最后的美学效果十分重要。     

上颌前牙种植美学修复的临床研究

目的:探讨上颌前牙种植美学修复的方法与效果。方法:选择30例上前牙缺失患者随机分实验与对照组,实验组15例常规植入种植体,牙槽嵴顶与唇侧植骨,二期术牙龈成形与重建,技师和比色仪相结合比色,贵金属烤瓷修复;对照组15例常规植入种植体,唇侧植骨,二期术牙龈成形,临床比色板比色,贵金属烤瓷修复;分别于种植修复后3、6、12月由医师/患者对修复体形态,色泽,牙龈形态,色泽,丰满度,龈缘曲线,牙间乳头,以及邻牙与对侧同名牙协调性进行美学评分,得出满意度。结果:实验组满意度87%,对照组33%;实验组不满意度7%,对照组53%。结论:上颌前牙种植美学修复方法可行,效果显著。     

Hybrid Implant: A Novel Implant System

Introduction

Replacement of missing tooth has evolved from removable dentures to fixed dentures and recently to dental implants. The need of sufficient bone around the endosseous implant is critical for the success of the implant. The present study was aimed to evaluate the efficacy of a novel implant (HYBRID IMPLANT-submitted for patency) for replacement of the missing teeth.

Materials and methods

1. Research design A prospective research design with a follow up after 1st week ,2nd week ,3rd week,1st month ,3rd month,6th month and 1st year postoperatively. 2. Sampling method Population: All patients who reported for replacement of missing teeth. Inclusion criteria 1. All patients above the age group of 16years 2. Patients who need replacement of single or multiple teeth in the anterior or posterior region of the maxilla and mandible. Exclusion criteria 1. Medically compromised patients. 2. Patients having craniofacial syndromes. 3. Sample size 5 patients were selected taking into consideration the inclusion and exclusion Criteria. Results PAIN All the patients were non symptomatic during the 1st month to 1st year postoperative periods.

Mobility

We experienced mobility during the 1st and 2nd postoperative periods where the implants were inserted in the mandibular molar region.

Bone loss

Radiographic assessment showed no bone loss during the postoperative periods.

Conclusion

The novel implant (hybrid implant) showed good stability and minimum patient discomfort during one year postoperative period evaluation. The implant system leads to new prospect in the field of prosthetic rehabilitation.     

Influence of the Residual Ridge Widths and Implant Thread Designs on Implant Positioning Using Static Implant Guided Surgery

Purpose

Aggressive implant macrothread designs have been widely used. However, the effects of the aggressive thread design on the accuracy of static guided surgery, especially in a case of narrow residual ridge, have not been well-studied. The aim of this study was to evaluate the effects of two different implant macrothread designs and the residual ridge widths on the accuracy of tooth-supported static guided implant surgery.

Materials and methods

Forty implant fixtures with two different macrodesigns: a conventional thread design bone level tapered (BLT), and an aggressive thread design bone level tapered (BLX) were placed in 40 simulated polyurethane models with narrow and wide residual ridges. The placed implant positions were compared with the planned implant position and angulational deviation, as well as three-dimensional (3D) deviations at the entry and apex of the implant were measured. One-way ANOVA with Tukey's multiple comparisons (ɑ = 0.05) were used to determine level of significance between the mean and variance deviation values. 95% confidence intervals and box plots were used to demonstrate the means and ranges of precision.

Results

In terms of angulational deviation, there was no statistically significant difference in the mean deviations for both types of implants, p = 1.55 and p = 0.84 for wide and narrow ridge groups, respectively. However, the range of deviation was much larger in the narrow ridge of the BLX group compared to the BLT group. In both narrow ridge and wide ridge, the BLX group had lower mean 3D deviation values at both the entry and the apex with statistically significant differences for both entry point of the wide ridge (p = 0.027) and narrow ridge (p = 0.022) as well as at the apex of the wide ridge (p = 0.006) but not the apex of the narrow ridge (p = 0.142).

Conclusion

The aggressive larger thread design of dental implants may influence the accuracy of implant placement more than the ridge dimension.     

Effect of Implant Position on Implant Restoration Design

SUMMARY
Preoperative discussions among the surgeon, restorative dentist, and the laboratory technician determine exact implant locations based on availability of supporting bone, the size of the tooth being replaced, prosthetic components to be used, and the interproximal soft tissue considerations. Once the ideal location has been determined, a surgical stent is constructed to provide a guide for the surgeon to position the implant in the best prosthetic position for maximum esthetic results.     

上颌单前牙即刻种植修复和延期种植修复的美学效果比较

目的:比较上颌单前牙即刻种植即刻修复和延期种植延期修复的美学效果。方法:收集42例上颌单前牙种植修复病例,A组行即刻种植即刻修复(20例),B组行延期种植延期修复(22例)。采集永久修复后6个月复查的口内数码照片,用红白美学指数对其评分。统计分析以比较2组病例得分有无差异。结果:A组的种植体留存率(95.0%)和B组的种植体留存率(100%)相当,差别无统计学意义。A组红色美学指数(PES)得分(12.05±0.97)和白色美学指数(WES)得分(8.00±1.41)均高于B组PES(10.50±1.57),WES(6.95±1.21),差别具有统计学意义。A组PES≥12的病例所占比例(68.4%)高于B组(22.7%),差别具有统计学意义。结论:即刻种植即刻修复组的短期美学效果较延期种植延期修复组更好,且两者的种植体留存率没有显著差别。     

Implant maintenance

Endosseous root-form implants have become an integral part of dental reconstruction in partially and fully edentulous patients.The long-term prognosis of an implant is related directly to routine assessment and effective preventive care. To maintain healthy tis-sues around dental implants, it is important to institute an effective maintenance regimen. Different regimens have been suggested, but it is unclear which are the most effective. This article evaluates the literature regarding implant maintenance. Factors affecting the soft tissue surrounding endosseous root-form implants are discussed, and procedures for assessment of the implant and the treatment of reversible disease in implant maintenance are outlined.