全口义齿

弹性义齿联合铸造金属支架修复无牙颌临床效果分析；用简单骀架制作全口义齿163例临床应用分析。     

按扣式分段上颌全口义齿在无牙颌小口畸形修复中的应用:附1例报告

目的:将按扣式分段全口义齿应用于无牙颌小口畸形患者的修复中,评价其修复效果。方法:采用分段式印模技术。沿中线两侧的全口义齿上制作腭部按扣式机械结构。在两侧金属支架相当于上中切牙的位置,各做半个金属基牙,并在此之上制作烤塑冠。义齿就位时,同时将烤塑冠就位,将整个义齿连成一体,并提供稳定作用。结果:按扣式分段全口义齿能够在患者口腔中自如就位,并发挥良好的功能。结论:按扣式分段上颌全口义齿可用于无牙颌小口畸形患者的修复。     

种植体支持球帽附着体固位下颌覆盖全口义齿的临床应用

目的:评价种植体支持球帽附着体固位的下颌覆盖全口义齿临床应用效果.方法:随机选择15例下颌无牙颌患者,每例植入2枚种植体,共植入30枚,随访观察1-12个月,从患者满意度、临床检查及种植体X线片观察修复效果.结果:种植体支持覆盖全口义齿修复下颌无牙颌,义齿固位和咀嚼功能满意率分别为100％和93.3％,义齿稳固,咀嚼功...     

口腔种植修复技术在无牙颌患者中的应用

目的:评价口腔种植修复技术在无牙颌患者中的临床应用效果,以促进其在临床上的广泛应用.方法:对49例全口无牙颌患者,根据患者的条件,在植入种植体后3-6个月,进行种植覆盖全口义齿或种植固定全口义齿修复,所有患者均于术后1、3、6、12个月.之后每12个月复查1次,根据临床观察,X线检查和患者主诉,评价其效果.结果:种植覆盖全口义齿修复26例,82颗种植体(上颌11例,下颌15例);种植固定全口义齿修复23例.213颗种植体(上颌18例,下颌5例),经过12个月～108个月的临床观察(平均42.32月),其中种植覆盖全口义齿1例2颗种植体发生脱落,其余种植体均获得良好的临床效果,累计存活率为97.56%;种植固定全口义齿除2例6颗种植体松动外,其余种植体临床效果良好,累计存活率为97.18%,两种修复方式均能获得良好的临床效果,义齿功能优良,患者对修复效果满意.结论:对全口无牙颌患者,采用种植义齿进行修复,通过精心的设计和完善的手术,能有效地恢复功能,达到美观效果,并能使种植体长期稳固于口腔内行使功能.     

长正中牙合全口义齿修复无牙颌再诊患者咀嚼效能研究

目的评价长正中牙合全口义齿修复无牙颌再诊患者的咀嚼效能。方法选择2011年1月—2013年8月口腔科全口义齿修复无牙颌再诊患者20例,为每位患者制作1副长正中牙合全口义齿,以该义齿为模板,采用义齿复制技术再制作1副解剖牙合全口义齿,每例患者交替戴用长正中牙合全口义齿和解剖牙合全口义齿3个月以上,采用UV-2450型分光光度计,集中进行咀嚼效能测定。结果 2种牙合型30 s咀嚼效率吸光度值:长正中牙合全口义齿(0.898)明显高于解剖牙合全口义齿(0.657),t=8.581,P<0.001,2种牙合型咀嚼效率有高度显著性差异。结论 20例长正中牙合全口义齿修复无牙颌再诊患者的咀嚼效能高于解剖牙合全口义齿。     

弹性树脂与铸造支架在义齿修复中的应用(附28例报告)

目的设计一种联合义齿以解决传统可摘局部义齿易显露金属卡环影响美观的问题.方法用弹性树脂制作可摘局部义齿的基托及唇侧固位体,结合铸造支架,制作联合可摘局部义齿,修复28例因多数后牙缺失或前后牙均有缺失须在前牙区设计固位体的病例,行联合义齿修复.结果联合可摘局部义齿具有良好的美观效果及咀嚼功能.结论联合可摘局部义齿兼有弹性树脂和铸造支架的优点,可作为临床上选用的一种修复体.     

隐形义齿与铸造支架联合修复双端游离缺失的临床探讨

目的：探讨采用隐形义齿与铸造支架联合修复双端游离缺失的临床效果。方法：采用弹性树脂做基托和唇（颊）侧固位体,缺失区和支托采用铸造支架,制作修复件27件,修复双端游离缺失23例。患者戴用1年后进行临床观察。结果：弹性树脂与铸造支架联合义齿的美观舒适感、食物嵌塞、基牙情况等较传统活动义齿均有明显改善。结论：弹性树脂与铸造支架联合义齿修复双端游离缺失是一种解决游离端缺失修复的好方法。     

组织试合剂 Fit Checker 在口腔修复调改中的应用

目的评价组织试合剂Fit Checker在口腔修复调改中的临床应用效果。方法选择金属烤瓷冠修复患者368例、金属支架可摘义齿试戴患者161例、塑料基托可摘义齿组织面疼痛患者37例、全口义齿修复患者62例,共628例患者,用Fit Checker进行修复体调改。结果对628例患者的修复体使用Fit Checker进行调改,均达到了满意的效果。368例患者的金属烤瓷冠咬合接触点均匀、广泛,烤瓷冠边缘密合无间隙,探诊光滑无阻挡;161例患者的金属支架可摘义齿金属支架与基牙贴合紧密,固位良好,取戴方便;37例可摘义齿组织面疼痛患者中有36例疼痛完全消失,1例在用义齿咀嚼时仍有痛感,经自行咀嚼锻炼2周后逐渐恢复正常;62例全口义齿修复患者在大张口、发音、咀嚼时义齿均能保持较好的稳定性,咀嚼功能恢复良好。结论使用Fit Checker对金属烤瓷冠、金属支架可摘义齿、塑料基托可摘义齿、全口义齿进行调改可取得良好效果。     

精细印模法增强下颌全口义齿吸附作用的临床调查

目的:调查精细印模法增强下颌全口义齿吸附作用的临床效果.方法:对30名无牙颌下颌牙槽嵴条件较差患者用精细印模法和传统印模法取印模,并制作完成全口义齿.义齿戴入3个月后对下颌全口义齿固位功能、黏膜情况,舒适性、咀嚼功能、食物嵌塞等内容进行临床调查.结果:两种印模法完成的下颌全口义齿在舒适程度、黏膜情况、食物嵌塞方面无显著...     

无牙颌种植修复的考虑

目的:本研究目的对无牙颌的种植修复的进行一系列的临床及基础研究。方法:选择不同无牙颌的种植修复病例,采用覆盖义齿修复和固定义齿修复,通过计算机辅助设计、咬合分析及重建等方法评估修复效果。结果:所有病例通过咬合重建均获得良好的修复效果。讨论:自主设计制作精确的牙种植手术导向模板,为临床手术进行准确的定位。并且开发出可操作性更好的套筒设计,为定位球钻、先锋钻后的扩孔钻提供一定的导向基础。采用力分析的方法,比较种植支持式全口义齿与传统全口义齿的力区别。在精确力分析的指导下,以颌位记录为基础,制作力分布更为合理的种植支持式全口义齿。结论:种植修复可有效的对无牙颌患者进行良好的咬合重建。     

Clinical effects of acrylic resilient denture liners applied to mandibular complete dentures on the alveolar ridge

The purpose of this study was to investigate whether resilient denture liners has the potential to decrease problems affecting the alveolar ridge mucosa during the first adjustment session following the initial fitting of the denture. Interventions were complete denture treatment with permanent acrylic resilient denture liner dentures (RLD) in mandibles and conventional heat-activated acrylic resin dentures (ARD) in mandibles. Maxillary dentures were fabricated with conventional heat-activated ARD. Seventy-four subjects were randomly allocated to the RLD and ARD groups by random permuted blocks within the strata method after obtaining written informed consent. A randomized controlled parallel clinical trial with two hospital centres was conducted from April 2004 to July 2006. The problems were comprehensively evaluated by three outcomes with subjective and objective factors as follows: (i) numbers of sore spots, (ii) duration of wearing dentures and (iii) pain perception with 100 mm Visual Analog Scale. The numbers of sore spots in the mandibular support and border areas for the RLD group were significantly less than those for the ARD groups (P < 0.05). The RLD wearers were able to wear their dentures an additional day longer than the ARD wearers (P < 0.05). The maxillary and mandibular pain ratings for the RLD group were significantly lower than those for the ARD group (P < 0.05). Application of resilient denture liners to mandibular complete dentures provided edentulous patients with fewer problems affecting the alveolar during the first adjustment session following the initial fitting of the denture when compared with conventional denture treatments.     

上颌全口义齿铸造腭托后堤区的网状设计与临床观察

目的：评价上颌全口义齿铸造金属腭侧基托后堤区网状设计的临床效果。方法：采用刮除石膏的方法形成后堤区,在上颌基托硬腭区采用金属板设计,牙槽嵴及基托后缘10mm（后堤区）范围采用金属网加强塑料基托设计。在戴牙后1个月对上颌义齿固位效果进行评价。对由于后堤区封闭不佳造成的固位不良者,进行后堤区重衬后再次评价。结果：158例患者中,139例固位佳,15例固位一般,4例固位差。单纯由后堤区边缘封闭不良造成的固位一般11例,固位差3例,经后堤区重衬后对此14例再次评价,固位佳9例,固位一般5例。结论：上颌全口义齿铸造金属腭侧基托后堤区的网状设计,既保持了常规设计的优点,又克服了其不能重衬的缺点,减少了全口义齿的失败率。     

改良冷弯卡环与铸造支架联合应用修复牙列缺损的疗效观察

目的观察改良冷弯卡环联合铸造支架可摘局部义齿修复的临床效果。方法使用成品不锈钢圆丝锻制,配合扁丝弯制钳弯制成半圆形卡环臂、圆形卡环肩部及连接体、扁圆过度卡环体的改良冷弯卡环,与钴铬铸造支托、基托联合应用修复牙列缺损。并对90件改良冷弯卡环联合铸造支架可摘局部义齿戴入后追踪观察2年,了解义齿使用情况和基牙健康状况,并将其与钴铬合金支架义齿、传统冷弯卡环塑料基托义齿的修复效果对比。结果 2年后改良冷弯卡环联合铸造支架义齿基牙状况良好,不良症状明显低于其他两组义齿。结论改良冷弯卡环联合铸造支架可摘局部义齿具有良好的功能,可以获得良好的修复效果。     

Effectiveness of microwave disinfection of complete dentures on the treatment of Candida-related denture stomatitis

The effectiveness of microwave disinfection of maxillary complete dentures on the treatment of Candida-related denture stomatitis was evaluated. Patients (n = 60) were randomly assigned to one of four treatment groups of 15 subjects each; Control group: patients performed the routine denture care; Mw group: patients had their upper denture microwaved (650 W per 6 min) three times per week for 30 days; group MwMz: patients received the treatment of Mw group in conjunction with topical application of miconazole three times per day for 30 days; group Mz: patients received the antifungal therapy of group MwMz. Cytological smears and mycological cultures were taken from the dentures and the palates of all patients before treatment at day 15 and 30 of treatment and at follow-up (days 60 and 90). The effectiveness of the treatments was evaluated by Kruskal-Wallis and Mann-Whitney tests. Microbial and clinical analysis of the control group demonstrated no significant decrease in the candidal infection over the clinical trial. Smears and cultures of palates and dentures of the groups Mw and MwMz exhibited absence of Candida at day 15 and 30 of treatment. On day 60 and 90, few mycelial forms were observed on 11 denture smears (36.6%) from groups Mw and MwMz, but not on the palatal smears. Miconazole (group Mz) neither caused significant reduction of palatal inflammation nor eradicated Candida from the dentures and palates. Microwaving dentures was effective for the treatment of denture stomatitis. The recurrence of Candida on microwaved dentures at follow-up was dramatically reduced.     

Periodic evaluation of the occlusal vertical dimension of maxillary dentures from the wax trial denture through 48 hours after polymerization

PURPOSE: This study measured the effects of commercial resin type on maxillary complete dentures with monoplane teeth by periodically comparing the occlusal vertical dimension of the polymerized dentures with the baseline, wax trial denture fiducial measurements. MATERIALS AND METHODS: Commercially available compression-molded, injection-molded, and fluid poly(methyl methacrylate) resins, as well as one compression-molded methyl acrylate ester copolymer, were evaluated. Ten dentures were fabricated from each resin using monoplane teeth. The occlusal vertical dimension at the articulator pin was measured at the wax denture stage for each specimen, and changes in occlusal vertical dimension for each denture were evaluated at a simulated laboratory remount, and at 0, 3, 6, 24, and 48 hours after a simulated clinical remount. Repeated measures analysis of variance (alpha = 0.05) and post hoc one-way factorial analysis of variance and Scheffe's F-Tests for each resin group were performed using ranks of raw data. RESULTS: Changes in the maxillary denture mean occlusal vertical dimensions were recognized throughout the evaluation periods compared with the wax-denture baseline, and time was a significant influence on displacement (p = .0001). Only the compression-molded poly(methyl methacrylate) dentures exhibited a mean laboratory remount occlusal vertical dimension that was significantly greater than the mean wax denture measurement, and all resin systems exhibited occlusal error that was significantly less than the laboratory remount measurements at 48 hours. At 48 hours, all resin groups exhibited mean occlusal vertical dimension changes that were less than 1 mm compared with the wax denture. Only compression-molded poly(methyl methacrylate) dentures exhibited a mean 48-hour clinical remount measurement that was statistically similar to the mean wax denture occlusal vertical dimension. CONCLUSIONS: Individual maxillary dentures from all resin types and at all intervals exhibited dimensional change. At the last evaluation period, the compression-molded poly(methyl methacrylate) showed no change in mean occlusal vertical dimension from baseline, whereas remaining groups exhibited occlusal vertical dimensions significantly less than baseline.     

Randomized controlled trial to investigate how acrylic‐based resilient liner affects on masticatory ability of complete denture wearers

Summary The aim of this study was to determine the effects of an acrylic‐based resilient liner (ARL) on masticatory ability by verifying the null hypothesis that masticatory performance and mandibular movements do not differ between people who wear mandibular complete dentures with ARL and those who wear complete dentures with conventional acrylic resin (CAR). From April 2004 to July 2006, we conducted a randomized controlled trial study at two centres. After written informed consent was obtained from 74 edentulous patients, they were randomly allocated to either the ARL group or CAR group. Masticatory performance and mandibular movement at the lower incisal point during chewing were measured as the outcomes. We did not observe significant differences in both outcomes between the groups. The chewing cycles were significantly different during the initial, middle, and final phases of mastication. Within the limitations of the current study, the results indicate that the acrylic‐based resilient denture liners used have no clinical impact on the masticatory ability of complete denture wearers.     

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。     

生物功能性全口义齿咀嚼效率的研究

目的测试生物功能性(BPS)全口义齿的咀嚼效率,分析BPS全口义齿恢复无牙颌患者咀嚼功能的情况。方法选择临床无牙颌患者,分成牙槽嵴正常组和牙槽嵴低平组,每组分别采用BPS全口义齿或传统全口义齿进行修复治疗。修复治疗后1、3和6个月,采用吸光度法测试义齿的咀嚼效率。结果在牙槽嵴正常组,两种全口义齿咀嚼测试物的吸光度值在各检测期点都比较接近(P>0.05),并且在3、6个月后都能维持比较稳定的数值(P>0.05)。在牙槽嵴低平组,BPS全口义齿咀嚼物吸光度值在各检测期点都高于传统组(P<0.05);且在修复治疗3、6个月后都能维持比较稳定的数值(P>0.05);而传统全口义齿的吸光度值则在修复治疗3、6个月后出现下降的趋势(P<0.05)。结论BPS全口义齿修复治疗牙槽嵴低平患者的咀嚼效率优于传统全口义齿。     

铸造金属基托与纯塑料基托全口义齿的临床应用比较

目的 比较整体铸造金属基托全口义齿（PCMBCD）与纯塑料基托全口义齿（RBCD）的临床应用情况。方法 分别检测患者戴牙至少半年后两种义齿的咀嚼效能、义齿性口炎发生率以及满意程度。结果PCMBCD的咀嚼效能比RBCD的高（P<0.001）,而它的义齿性口炎发生率却远低于RBCD的（P<0.001）,患者戴牙后的满意程度也是前者高于后者（P<0.001）。结论 提示整体铸造金属基托全口义齿可能较传统的纯塑料基托全口义齿更适用于临床。?