衬特舒用于全口义齿重衬的临床效果观察

目的:观察衬特舒软衬材料、热凝树脂、自凝树脂对全口义齿重衬修复的临床效果。方法:分别采用软衬材料、热凝树脂、自凝树脂对不同牙槽嵴和黏膜条件的无牙颌患者进行全口义齿重衬,衬垫1年后复查。比较3种材料重衬义齿的舒适度、固位性、咀嚼功能恢复的满意度及清洁情况。结果:对于牙槽嵴或黏膜条件差的患者,软衬材料重衬义齿的成功率明显高于热凝、自凝树脂重衬义齿(P<0.05);对于牙槽嵴和黏膜条件尚好的患者,3种材料重衬义齿的成功率无显著差异(P>0.05)。结论:衬特舒软衬材料重衬义齿稳固、舒适、咀嚼功能提高,适用于牙槽嵴或黏膜条件差的患者。     

牙槽嵴形态对全口义齿重衬效果的影响

目的:应用模型测量分析结合问卷调查,评价重衬术对全口义齿修复效果的影响,预测义齿重衬后的效果.方法:对15例全口义齿修复下半口义齿固位不佳的患者,通过闭口印模,制取下半口模型,在模型的5个标志线处切割模型,测量标志线处的牙槽嵴高度、宽度、截面积,用Tokuyama Rebase FastⅡ硬衬材料对患者下半口义齿进行直接法重衬.重衬7d后,进行修复效果的满意度问卷调查,利用SPSS15.0软件包对测量结果与问卷调查结果进行统计学分析.结果:前磨牙处牙槽嵴条件与下半口义齿固位效果间具有显著相关性(P<0.01);牙槽嵴截面积与固位间相关性最为显著(P<0.01),其中颊侧截面积的影响大于舌侧截面积;牙槽嵴宽度与固位间存在相关关系;以牙槽嵴颊侧截面积作为主要指标.所得Logistic方程对义齿重衬后固位效果的预测准确率接近70%.结论:前磨牙处牙槽嵴丰满程度对下半口义齿重衬后固位效果影响最大,提示模型测量可用于预测全口义齿重衬后的固位效果.     

软硬衬材料对总义齿满意度的影响

目的探讨义齿软硬衬材料应用后,患者对总义齿满意度的变化。方法选择初次接受总义齿修复的无牙颌患者18例,随机分为2组。试验组应用软硬衬材料对义齿进行交替重衬处理,对照组总义齿组织面未做特别处理。使用全口义齿满意度调查表评价不同时期2组患者对义齿的主观感受。结果试验组总义齿使用2周、1个月及1年时的舒适程度及固位稳定满意度均高于对照组,差异有统计学意义（P〈0.01）。与使用软衬比较,试验组义齿更换硬衬后2周时的满意度较低（P〈0.05）,1个月及6个月时的满意度差异无统计学意义（P〉0.05）。结论义齿软硬衬材料的联合应用可提高牙槽嵴低平患者对总义齿的早期适应性,取得良好的修复效果。     

长效硅橡胶软衬材料在全口义齿修复中的临床应用研究

目的：探讨长效硅橡胶软衬材料对疑难全口义齿修复后义齿满意度的影响.方法：选择95例因牙槽嵴条件差而导致下颌总义齿固位不良或压痛的患者,随机分为软衬组和对照组,分别于修复后3个月和12个月进行满意度问卷调查.结果：软衬组和对照组满意度调查结果比较,在固位效果、咀嚼功能、舒适度方面的满意度有显著差异（P＜0.01）,软衬后12个月与3个月的固位效果、咀嚼功能和舒适度的满意度结果相比没有明显差异（P＞0.05）.美观效果和语言功能两组没有明显差异（P ＞0.05）.结论：对牙槽嵴条件差的疑难全口义齿修复患者,使用长效热凝硅橡胶软衬可以提高义齿使用的满意度,长效硅橡胶软衬材料使用寿命长,可以维持较长时间的义齿满意度.     

Denture Liner衬垫树脂用于全口总义齿重衬的临床效果观察

目的：观察松风Denture Liner衬垫树脂对全口总义齿重衬修复的临床效果。方法：对使用1年以上,固位效果不佳的全口总义齿应用Denture Liner衬垫树脂进行口内直接重衬,观察1周、3个月、6个月和1年后,重衬义齿的结构完整性、咀嚼功能恢复情况、固位性、与黏膜的密合性及疼痛情况等。结果：重衬义齿1周和3个月的成功率为90.9%,6个月的成功率为86.4%,12个月的成功率为77.3%。结论：松风DentureLiner重衬义齿结构完整、清洁、稳固、咀嚼功能提高,能够延长总义齿的使用年限。     

二次功能印模法全口义齿对改善无牙颌患者口腔健康的效果评价

目的 ：评价对无牙颌患者运用二次功能印模法进行全口义齿修复的临床效果。方法 ：对433例无牙颌患者运用二次功能印模法进行全口义齿修复，修复前后使用老年口腔健康评价指数（Geriatric Oral Health Assessment Index,GOHAI）评估患者口腔健康相关生活质量。根据患者是否有义齿修复史，分为无义齿修复史、局部可摘义齿修复史和全口义齿修复史3组。在全口义齿修复史组中，选取30例患者，使用修复前旧义齿及新义齿咀嚼双色口香糖，采用ViewGum分析计算口香糖的混合程度数据（SDHue值）。采用SPSS 26.0软件包对数据进行统计学分析。结果：3组患者修复后口腔健康相关生活质量均有提升，修复后1个月GOHAI指数均显著高于修复前（P<0.05）。在全口义齿修复史组中，30例患者修复后SDHue值显著低于修复前（P<0.05）。结论：二次功能性印模法操作简便快捷，能够提升患者对全口义齿修复后的满意度。     

全口义齿修复后开口度与义齿稳定性的关系

探讨全口义齿修复后开口度与义齿稳定性的关系。方法：全口义齿修复后，分别在初戴、1月、1／2a,1a时测量开口度。结果：稳定性良好的病例开口度为3．5－4cm，占72％，修复后1／2a固位和稳定最佳，占87．9％，结论：完成后的总义齿开口度越接近自然牙列开口度时义齿的稳定性最佳。     

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目的    评价Cardex-stabon软衬材料用于全口义齿修复的临床效果。方法    选择2006年2月至2009年9月黄石市中心医院口腔科收治的全牙列缺失患者137例,随机分为试验组和对照组,试验组采用Cardex-stabon软衬材料行全口义齿衬垫修复,对照组采用常规方法进行义齿修复。分别于修复后20 d、2个月、6个月通过问卷调查的方式回访,评价患者所戴义齿的效果。结果    在修复后20 d、2个月、6个月时试验组义齿衬垫修复成功率为87.4％、83.9%、80.5%,明显高于对照组（56.0％、54.0%、40.0%）,且差异均有统计学意义（P均 < 0.01）。结论    使用Cardex-stabon软衬材料行全口义齿衬垫修复,能减少传统义齿固位差、咀嚼功能低下等并发症的发生。     

老年人全口义齿再修复疑难病例的临床研究

目的:观察充分利用旧义齿信息在老人全口义齿再修复疑难病例中的应用效果。方法:选择132例戴用旧义齿10年以上的老年无牙颌患者,按照旧义齿使用年限分两组,实验组:旧义齿使用15年以上66例,利用超硬石膏翻制重衬后的旧义齿组织面模型,利用聚醚橡胶翻制修整后的旧义齿蜡型,将蜡型放在石膏模型上按照咬合关系上牙合架,再制作新义齿;对照组:旧义齿使用10~15年66例,按照常规方法制作新义齿。结果:与常规方法比较,充分利用旧义齿信息制作的全口义齿患者适应较快,满意度高。戴用新义齿后3 d,分别做咀嚼效率、舒适度满意度调查,均P<0.05,差异有统计学意义;2周做总体满意度比较(P<0.05),差异有统计学意义。结论:老年人全口义齿再修复的疑难病例,需要充分利用旧义齿信息制作新义齿才能提高满意度。     

两种排牙方法对全口义齿患者满意度影响的临床评价

目的：对比分析传统排牙法与个性排牙法对无牙颌患者全口义齿修复效果的影响。方法：选择41例无牙颌患者,随机采用传统排牙法和个性排牙法制作全口义齿,戴用3个月以后,测试无牙颌患者对义齿的满意度。结果：2种不同义齿的稳固功能和咀嚼功能无显著差异;在美观、语音和舒适度方面,个性排牙组明显优于传统排牙组。结论：个性排牙法具有良好的临床效果。     

总义齿不同材料垫底前后咀效能的比较

目的：探讨总义齿不同材料垫底前后咀嚼效能的变化。方法：选择需作衬垫的总义齿30付,分成两组,分别用软衬材料和热凝塑料垫底,用722型光栅分光光度计吸光光度法测定衬垫前后的咀嚼效能。结果：软衬前后吸光度值有显著性差异。结论：总义齿软衬垫后咀嚼效能有很大提高。     

软衬材料对全口义齿满意度影响的临床观察

目的:探讨自凝硅橡胶软衬材料对全口义齿患者满意度的影响。方法:选择20例因牙槽嵴条件差而导致下颌总义齿固位不良或压痛的患者,使用SofrelinerMS自凝硅橡胶软衬材料在口内衬垫,于衬垫前和衬垫后1周,3个月,6个月用满意度问卷调查患者,SPSS10.0统计软件进行数据分析。结果:软衬材料使用前和使用后比较,在固位效果、咀嚼功能、舒适度方面的满意度有显著差异(P<0.01),软衬后6个月的固位效果和咀嚼功能满意度低于3个月(P<0.05)。结论:对因牙槽嵴条件差而导致的下颌全口义齿固位不良或压痛,使用SofrelinerMS软衬材料可以提高其义齿使用的满意度,但是软衬义齿戴用6个月后的满意度有下降趋势。     

The effect of relining on the accuracy and stability of maxillary complete dentures--an in vitro and in vivo study.

A technique was developed for evaluating in vitro the accuracy or fit of experimental denture bases using a low-viscosity impression material for determining the space between the master die and the processed denture base. These measurements indicated that relining heat-cured maxillary denture bases with autopolymerizing acrylic resin improved their adaptation to the ridges. Interestingly, if no teeth were present in the heat-cured denture base, markedly less distortion occurred after processing. Limited clinical measurements on the stability of maxillary dentures in function showed no statistically significant change in stability after relining, but the trend was toward increased stability with the relined denture.     

Immediate Loading of Two Implants with a Mandibular Implant‐Retained Overdenture: A New Treatment Protocol

Purpose: The aim of this study was to present the clinical outcomes of the immediate loading of two bar‐splinted implants retaining a mandibular overdenture. Materials and Methods: In a clinical trial, 124 edentulous patients were treated according to a new treatment concept, which involves the immediate loading of two bar‐splinted SLActive implants with an implant‐retained mandibular overdenture. The new conventional mandibular denture is used as a template for implant positioning and as an impression tray, and for mounting the retention clip by the dental laboratory. At the same day the implants are placed, the conventional denture is converted into an implant‐retained overdenture. During the healing and evaluation period, resonance frequency analysis (RFA) was undertaken to assess the effect of loading on implant stability and survival. Results: The survival rate of the implants was 98.8% during the evaluation period (12–40 months). Only 3 of the 248 implants were lost. During the healing (osseointegration) phase, the implant‐stability quotient increased significantly (p = .0001). During the evaluation period, four patients (3%) needed a relining of their mandibular overdenture, whereas 13 patients (11%) needed relining of the maxillary denture. Conclusions: Two interconnected implants can be successfully loaded by a mandibular overdenture at the same day of implant placement with a high survival rate of the implants. Only a few patients needed additional relining of the overdenture. Repeated RFA measurements can be useful in gauging implant stability and survival.     

Clinical evaluation of a chemically cured hard denture relining material

The purpose of the current study was to evaluate the clinical performance of a chemically cured denture relining material after 1-year service period. A powder–liquid material designed for denture base relining (Tokuso Rebase Normal-set, Tokuyama Corp., Tokyo, Japan.) was assessed. Fifty adult patients, who required denture reline treatment, participated in the current project. Adaptation of each denture was examined with a silicone elastomeric material, and the surface to be relined was reduced by means of a rotary cutting instrument, then conditioned with dichloromethane. The relining material was spatulated, poured into the relining area, inserted and adjusted after setting. Each relined denture was subjected to base line evaluation immediately after relining and end evaluation after 1 year. Standardized criteria were used for direct evaluation of the material. After an observation period of 1 year, the rate of the relining cases considered to be in clinically ideal condition (Alfa) was 90% for staining, 90% for discoloration, 94% for peeling, 96% for adaptation and 100% for irritation to oral tissue. Only one case was judged as clinically unacceptable (Charlie), and this was for staining. On the basis of a 1-year observation, the Tokuso Rebase material is considered to be a clinically reliable hard denture relining agent.     

Evaluation of adhesion of chairside hard relining materials to denture base polymers

STATEMENT OF PROBLEM: Removable denture bases are made of modified poly(methyl methacrylate) (PMMA), which has reliable bond strength with resins containing methyl methacrylate (MMA). However, some hard relining materials with different chemical compositions have been reported to have less than adequate bond strength to PMMA denture base polymers. PURPOSE: This in vitro study evaluated the initial bonding properties of chairside hard relining materials to different removable denture base polymers, as well as the structure of the interface. MATERIAL AND METHODS: The tensile strength (MPa) of adhesion of 8 chairside hard relining materials (Original Truliner, GC Reline Hard, Ufigel Hard, Triad Reline, New Truliner, Light Liner, Astron LC Hard, and Flexacryl Hard) was tested against 3 denture base polymers (Ivocap Plus, Paladon 65, and Palapress Vario). Dumbbell-shaped specimens with a 6-mm diameter of bonding surface were used for tensile testing of bond strength (n=5). An MMA containing hard relining material (Original Truliner) was used as a control. Tensile strength of the bond was calculated using the bonding area and maximum force under tension. Statistical analyses of data were conducted with 2-way analysis of variance (alpha=.05). The influence of the bonding agents and the relining materials on the PMMA denture base surface layer and its structure were investigated. The depths of the swollen layers were measured with a transmission light microscope. Fracture surfaces after testing were also visually evaluated. Chemical analyses of all materials prior to testing were performed using high-performance liquid chromatography. RESULTS: Significant differences were found among tensile bond strengths of chairside hard relining materials to PMMA denture base polymers forming 3 different groups (P<.001). No significant difference among different denture base polymers was found with regard to tensile strength of adhesion (P=.918), but the interaction term between hard relining material and denture base polymer was found to be significant (P<.001). The tensile bond strength of the relining materials and denture base polymers was found to range from 8% to 60% of the strength of the PMMA denture base polymers. CONCLUSION: The chemical composition of the bonding agents and the relining materials and their combinations affected the depth of the swollen layers of the denture base polymers and the tensile strength of adhesion.     

含牛初乳凝胶提高口干症患者全口义齿满意度的临床评价

目的:探讨含牛初乳湿润凝胶对口干症患者配戴全口义齿效果的影响.方法:选择23例有口干症的全口义齿患者,于使用口腔湿润凝胶治疗前和治疗后1周、1个月、3个月让患者填写满意度问卷调查表,采用SPSS11.0软件包对数据进行分析.结果:湿润凝胶治疗后3个月和治疗前比较,治疗效果满意,在总体满意度、语音功能、咀嚼功能、舒适度以及下颌全口义齿同位效果等5个方面均有显著提高(P＜0.05);而上颌全口义齿固位效果未见明显差异(P＞0.05).治疗后1个月,总体满意率高于治疗后1周,治疗后3个月与治疗后1个月比较,则无显著差异.结论:伴有口干症的全口义齿患者,使用口腔湿润凝胶治疗,可以提高其对配戴全口义齿的满意度.     

弹性小吸盘用于全口义齿的临床观察

目的：探讨弹性小吸盘对全口义齿满意度的影响。方法：选择20例因牙槽嵴条件差而导致全口义齿固位不良修复失败的患者,重新进行义齿修复。于使用原义齿和使用吸盘式义齿后1周、3个月、6个月、1年进行满意度调查,用SPSS13.0统计软件进行数据分析。结果：使用弹性小吸盘后,在固位效果、咀嚼功能、舒适度方面的满意度都有显著性提高（P〈0.01）;使用3个月、6个月和1年后的满意度无显著性差异（P〉0.05）。结论：因牙槽嵴重度吸收导致全口义齿固位不良的患者,使用弹性小吸盘后可提高义齿使用的满意度。     

Suitability of denture base by light-cured resin for reline

With a view to evaluating the dimensional accuracy of the light-cured relining resin from the viewpoint of the suitability of the mucosal surface of the denture base, an experiment by direct relining technique was made using a total of 12 materials, i.e. 2 kinds of denture base material, 3 kinds of relining material and 2 kinds of denture base mold; cured, refined test sample interposed by impression material was adapted to the prototype and was measured for the thickness of impression material by means of stereoscopic microscope. The results obtained were as follows: 1) Lifting discrepancies averaged 0.5, 0.8 and 1.2mm for E (Eporex-E), R (Rebaron) and T (Triad), respectively, indicating a significant difference in lifting discrepancy according to the kind of relining materials. 2) In terms of the different molds of denture base, 2 kinds of R and E tended to show a little greater lifting discrepancies for thick samples of the alveolar ridge area, compared with the opposite tendency in case of T. 3) In terms of the different materials, combination of A and E (Acron.Eporex-E), and that of B and E (Triad.Eporex-E) showed values of the same order without difference. 4) Standard deviation for T showed a value of about 0.5mm or so, with a greater variation than others.