This study was conducted to investigate the maxillary denture bases and occlusal discrepancies using the Vertex Thermosens in comparison with the conventional polymethyl-methacrylate materials. Twenty maxillary dentur...This study was conducted to investigate the maxillary denture bases and occlusal discrepancies using the Vertex Thermosens in comparison with the conventional polymethyl-methacrylate materials. Twenty maxillary denture bases were prepared from the Vertex ThermoSens and a conventional heat-cured denture base materials. Acrylic maxillary second molars were arranged in their respective positions on the ridge. After curing of both types of denture bases, they were deflasked with their respective master casts. Reference points were prepared for measurements of the antero-posterior and cross-arch dimensions at the denture borders using caliper device. Furthermore, the teeth discrepancies were measured between reference points in the ligual aspect of the second maxillary molars. The recorded data was analyzed using SPSS statistical software version 20. The results showed initial shrinkage of both denture bases in the antero-posterior and cross-arch dimensions immediately after decasting. This contraction was compensated gradually during storage in water up to 2 weeks. Regarding the variable time, there was a significant difference between the tested materials. Moreover, the results revealed occlusal discrepancies and shifting of teeth inward immediately after decasting, followed by outward movement after storage in water for 2 weeks. Regarding the variables time and materials, there were significant differences. Both materials exhibited inward shrinkage in the antero-posterior and cross-arch dimensions immediately after decasting. Both denture bases showed inward shifting of teeth immediately after decasting, followed by outward movement after storage in water up to 2 weeks.展开更多
This article reviews the literatures dealing with the lingualized occlusion of complete denture including the origin,development and research.Lingualized occlusion is a valuable concept because many advantages of anat...This article reviews the literatures dealing with the lingualized occlusion of complete denture including the origin,development and research.Lingualized occlusion is a valuable concept because many advantages of anatomic and nonanatomic occlusions are retained,satisfactory occlusion is easily obtained,balanced occlusion can be accomplished.展开更多
<span style="font-family:Verdana;">Bedridden patients remain in bed for various reasons, such as chronic illness, old age, and disability, and they cannot perform self-care activities completely or par...<span style="font-family:Verdana;">Bedridden patients remain in bed for various reasons, such as chronic illness, old age, and disability, and they cannot perform self-care activities completely or partially. The provision of care for bedridden patients is a major issue in the aging population. Effective rehabilitation is associated with several factors such as cooperation between the patient and the medical staff, selection of effective facilities, and the financial burden. The objective of this study was to evaluate the effect on the activities of daily living (ADL) of occlusion restoration using removable dentures in bedridden older people.</span><span> </span><span style="font-family:Verdana;">This case</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">control study comprised 32 bedridden older patients who were divided into two groups as follows: denture (n </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> 18) and no-denture (n </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> 14). No rehabilitation was provided to any of the patients. The patients were evaluated 3 months after placing the denture, and the ADLs were compared between the two groups. Of the 18 bedridden patients who received removable dentures, 55.6% demonstrated improvements in the ADLs, and the effects persisted for </span><span style="font-family:Verdana;">at least 3 months. No improvement in the ADL was observed in the no-denture</span><span style="font-family:Verdana;"> group.</span><span> </span><span style="font-family:Verdana;">The results of this study suggested that adequate occlusal support can improve the ADL of the elderly. Thus, it is important to take care of oral health early in life in order to maintain oral health, which could help prevent the decrease in the ADL during the later stages of life.</span>展开更多
目的分析老年可摘义齿佩戴者口腔健康相关生活质量(oral health-related quality of life,OHRQoL)的影响因素及相互关系。方法选取牙列缺损/牙列缺失患者86名作为义齿佩戴组,行可摘义齿修复且义齿远端至少延伸到第一磨牙。选择天然牙列...目的分析老年可摘义齿佩戴者口腔健康相关生活质量(oral health-related quality of life,OHRQoL)的影响因素及相互关系。方法选取牙列缺损/牙列缺失患者86名作为义齿佩戴组,行可摘义齿修复且义齿远端至少延伸到第一磨牙。选择天然牙列保留至第一磨牙的无可摘义齿患者72名作为对照组。采用Eichner分类法记录上下颌之间的咬合单位和咬合支持数量,口腔健康影响程度量表(Oral Health Impact Profile,OHIP)评价OHRQoL,接触定位法确定主要咬合区,双侧第一磨牙作为测量部位评估最大咬合力,粘性凝胶法评估咀嚼效率,食物接受度问卷评估咀嚼能力。结果义齿佩戴组的OHIP评分以及心理不适和生理能力受限两个分量表的评分高于对照组(P<0.05)。OHIP评分与余留牙数、咬合支持数量、最大咬合力和咀嚼能力呈显著负相关。下颌余留牙数、咬合支持数量、下颌主要咬合区是否为天然牙以及咀嚼能力是OHIP评分的显著影响因素。结论老年可摘义齿佩戴者口腔健康相关生活质量与余留牙咬合关系和主要咬合区存在相关性,其中保留下颌第一磨牙是一个关键影响因素。展开更多
目的:探讨义齿咬合板联合综合物理疗法治疗颞下颌关节盘不可复性前移位(anterior disc displacement without reduction,ADDwoR)的疗效。方法:选择2019年1月—2020年12月衡水市人民医院口腔正畸修复科就诊的牙列缺损或牙重度磨耗并诊断...目的:探讨义齿咬合板联合综合物理疗法治疗颞下颌关节盘不可复性前移位(anterior disc displacement without reduction,ADDwoR)的疗效。方法:选择2019年1月—2020年12月衡水市人民医院口腔正畸修复科就诊的牙列缺损或牙重度磨耗并诊断为ADDwoR患者60例,根据治疗方法不同,随机分为义齿咬合板组(A组)和义齿咬合板+综合物理疗法组(B组)。治疗前、治疗时每3周记录患者最大主动开口度(maximum mouth opening,MMO)、视觉模拟量表疼痛评分(visual analog pain score,VAS)。治疗前及治疗后3个月拍摄锥形束CT(CBCT),分析2组患者治疗前、后临床疗效指标变化及颞下颌关节CBCT三维数据差异。采用SPSS 26.0软件包对数据进行统计学分析。结果:治疗后3周,2组VAS和治疗前相比差异有统计学意义(P<0.05)且B组VAS降低较多;治疗后3周起,B组MMO、VAS和治疗前相比差异有统计学意义(P<0.05)。治疗后9周起,A组MMO与治疗前相比差异有统计学意义(P<0.05),但A组与B组MMO、VAS无统计学差异(P>0.05)。CBCT显示,治疗后关节前间隙变窄,关节后间隙增宽,关节上间隙增大,髁突水平角减小,关节结节斜度、髁突高度增大(P<0.05);关节窝深度、髁突前后径、内外径相比差异无统计学意义(P>0.05)。与A组相比,B组治疗后关节前、上、后间隙,髁突水平角,关节结节斜度差异有统计学意义(P<0.05)。结论:义齿咬合板可有效改善ADDwoR症状,义齿咬合板联合综合物理疗法能迅速改善患者开口度,减轻患者关节区疼痛。展开更多
With the increased life expectancy, complete dentures have been used in the treatment of edentulism<span> </span><span>progressively. It restores stomatognathic system functions, providing improvemen...With the increased life expectancy, complete dentures have been used in the treatment of edentulism<span> </span><span>progressively. It restores stomatognathic system functions, providing improvements in chewing, aesthetics, and phonetics. The aim was to report an oral rehabilitation of a patient with severe aesthetic and functional impairment, with Angle’s class III malocclusion. The patient sought the extension project of the School of Dentistry of the Federal University of Minas Gerais with aesthetic complaints. After clinical and radiographic evaluation, the proposed planning was immediate complete denture maxilla and immediate implant-retained overdenture in mandible. During clinical evaluation it was observed that the patient was Angle</span><span>’</span><span>s III. The rehabilitation was performed as proposed and at the end of the treatment, it was possible to revert the class III occlusal pattern to Angle’s I. The excellent maxillomandibular relationship was achieved, which ensured optimal facial aesthetics and functional condition. It was concluded that the immediate complete dentures and immediate implant-retained overdenture might be beneficial for restoring the aesthetics and function of patients with Angle’s class III malocclusion.</span>展开更多
目的评价固定局部义齿修复在T-Scan Ⅲ数字化咬合分析系统指导下进行咬合调整的临床疗效。方法选择2018年10月至2020年9月就诊的88例单颗后牙缺失需固定局部义齿修复患者,随机分为咬合纸法组和T-Scan Ⅲ法组,每组44例。口内试戴时,分别...目的评价固定局部义齿修复在T-Scan Ⅲ数字化咬合分析系统指导下进行咬合调整的临床疗效。方法选择2018年10月至2020年9月就诊的88例单颗后牙缺失需固定局部义齿修复患者,随机分为咬合纸法组和T-Scan Ⅲ法组,每组44例。口内试戴时,分别采用传统咬合纸法和T-Scan Ⅲ指导法对修复体进行咬合调整,经抛光、粘接后完成修复,于3、12个月时复诊,采用改良的美国公共卫生署(United States Public Health Service,USPHS)评价系统和患者满意度调查表对修复效果进行评价。结果固定局部义齿修复后3个月时,咬合纸法组和T-Scan Ⅲ法组成功率分别为95.45%和97.73%;修复后12个月时,两组成功率分别为90.91%和95.45%,两个时间点两组成功率差异均无统计学意义(P均>0.05);在修复体咬合接触类型评价中,T-Scan Ⅲ法组Ⅰ类占93.18%,高于咬合纸法组(P<0.05);在对修复后咬合感受满意度调查中,两组分别有68.18%和86.36%的患者表示非常满意,后者较前者高(P<0.05)。结论T-ScanⅢ指导下咬合调整能够获得较好的临床效果,固定局部义齿修复中可以将T-ScanⅢ指导下咬合调整作为一种选择。展开更多
文摘This study was conducted to investigate the maxillary denture bases and occlusal discrepancies using the Vertex Thermosens in comparison with the conventional polymethyl-methacrylate materials. Twenty maxillary denture bases were prepared from the Vertex ThermoSens and a conventional heat-cured denture base materials. Acrylic maxillary second molars were arranged in their respective positions on the ridge. After curing of both types of denture bases, they were deflasked with their respective master casts. Reference points were prepared for measurements of the antero-posterior and cross-arch dimensions at the denture borders using caliper device. Furthermore, the teeth discrepancies were measured between reference points in the ligual aspect of the second maxillary molars. The recorded data was analyzed using SPSS statistical software version 20. The results showed initial shrinkage of both denture bases in the antero-posterior and cross-arch dimensions immediately after decasting. This contraction was compensated gradually during storage in water up to 2 weeks. Regarding the variable time, there was a significant difference between the tested materials. Moreover, the results revealed occlusal discrepancies and shifting of teeth inward immediately after decasting, followed by outward movement after storage in water for 2 weeks. Regarding the variables time and materials, there were significant differences. Both materials exhibited inward shrinkage in the antero-posterior and cross-arch dimensions immediately after decasting. Both denture bases showed inward shifting of teeth immediately after decasting, followed by outward movement after storage in water up to 2 weeks.
文摘This article reviews the literatures dealing with the lingualized occlusion of complete denture including the origin,development and research.Lingualized occlusion is a valuable concept because many advantages of anatomic and nonanatomic occlusions are retained,satisfactory occlusion is easily obtained,balanced occlusion can be accomplished.
文摘<span style="font-family:Verdana;">Bedridden patients remain in bed for various reasons, such as chronic illness, old age, and disability, and they cannot perform self-care activities completely or partially. The provision of care for bedridden patients is a major issue in the aging population. Effective rehabilitation is associated with several factors such as cooperation between the patient and the medical staff, selection of effective facilities, and the financial burden. The objective of this study was to evaluate the effect on the activities of daily living (ADL) of occlusion restoration using removable dentures in bedridden older people.</span><span> </span><span style="font-family:Verdana;">This case</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">control study comprised 32 bedridden older patients who were divided into two groups as follows: denture (n </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> 18) and no-denture (n </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> 14). No rehabilitation was provided to any of the patients. The patients were evaluated 3 months after placing the denture, and the ADLs were compared between the two groups. Of the 18 bedridden patients who received removable dentures, 55.6% demonstrated improvements in the ADLs, and the effects persisted for </span><span style="font-family:Verdana;">at least 3 months. No improvement in the ADL was observed in the no-denture</span><span style="font-family:Verdana;"> group.</span><span> </span><span style="font-family:Verdana;">The results of this study suggested that adequate occlusal support can improve the ADL of the elderly. Thus, it is important to take care of oral health early in life in order to maintain oral health, which could help prevent the decrease in the ADL during the later stages of life.</span>
文摘目的分析老年可摘义齿佩戴者口腔健康相关生活质量(oral health-related quality of life,OHRQoL)的影响因素及相互关系。方法选取牙列缺损/牙列缺失患者86名作为义齿佩戴组,行可摘义齿修复且义齿远端至少延伸到第一磨牙。选择天然牙列保留至第一磨牙的无可摘义齿患者72名作为对照组。采用Eichner分类法记录上下颌之间的咬合单位和咬合支持数量,口腔健康影响程度量表(Oral Health Impact Profile,OHIP)评价OHRQoL,接触定位法确定主要咬合区,双侧第一磨牙作为测量部位评估最大咬合力,粘性凝胶法评估咀嚼效率,食物接受度问卷评估咀嚼能力。结果义齿佩戴组的OHIP评分以及心理不适和生理能力受限两个分量表的评分高于对照组(P<0.05)。OHIP评分与余留牙数、咬合支持数量、最大咬合力和咀嚼能力呈显著负相关。下颌余留牙数、咬合支持数量、下颌主要咬合区是否为天然牙以及咀嚼能力是OHIP评分的显著影响因素。结论老年可摘义齿佩戴者口腔健康相关生活质量与余留牙咬合关系和主要咬合区存在相关性,其中保留下颌第一磨牙是一个关键影响因素。
文摘With the increased life expectancy, complete dentures have been used in the treatment of edentulism<span> </span><span>progressively. It restores stomatognathic system functions, providing improvements in chewing, aesthetics, and phonetics. The aim was to report an oral rehabilitation of a patient with severe aesthetic and functional impairment, with Angle’s class III malocclusion. The patient sought the extension project of the School of Dentistry of the Federal University of Minas Gerais with aesthetic complaints. After clinical and radiographic evaluation, the proposed planning was immediate complete denture maxilla and immediate implant-retained overdenture in mandible. During clinical evaluation it was observed that the patient was Angle</span><span>’</span><span>s III. The rehabilitation was performed as proposed and at the end of the treatment, it was possible to revert the class III occlusal pattern to Angle’s I. The excellent maxillomandibular relationship was achieved, which ensured optimal facial aesthetics and functional condition. It was concluded that the immediate complete dentures and immediate implant-retained overdenture might be beneficial for restoring the aesthetics and function of patients with Angle’s class III malocclusion.</span>
文摘目的评价固定局部义齿修复在T-Scan Ⅲ数字化咬合分析系统指导下进行咬合调整的临床疗效。方法选择2018年10月至2020年9月就诊的88例单颗后牙缺失需固定局部义齿修复患者,随机分为咬合纸法组和T-Scan Ⅲ法组,每组44例。口内试戴时,分别采用传统咬合纸法和T-Scan Ⅲ指导法对修复体进行咬合调整,经抛光、粘接后完成修复,于3、12个月时复诊,采用改良的美国公共卫生署(United States Public Health Service,USPHS)评价系统和患者满意度调查表对修复效果进行评价。结果固定局部义齿修复后3个月时,咬合纸法组和T-Scan Ⅲ法组成功率分别为95.45%和97.73%;修复后12个月时,两组成功率分别为90.91%和95.45%,两个时间点两组成功率差异均无统计学意义(P均>0.05);在修复体咬合接触类型评价中,T-Scan Ⅲ法组Ⅰ类占93.18%,高于咬合纸法组(P<0.05);在对修复后咬合感受满意度调查中,两组分别有68.18%和86.36%的患者表示非常满意,后者较前者高(P<0.05)。结论T-ScanⅢ指导下咬合调整能够获得较好的临床效果,固定局部义齿修复中可以将T-ScanⅢ指导下咬合调整作为一种选择。