Journal of prosthodontic research最新文献

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Association between decreased occlusal support and diabetes mellitus diagnosed by the oral glucose tolerance test with and without periodontal disease: The Suita Study. 伴有或不伴有牙周病的口服糖耐量试验诊断的糖尿病与咬合支持减少之间的关系:Suita研究
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-06 DOI: 10.2186/jpr.JPR_D_24_00147
Takayuki Kosaka, Yoko Yoshimuta, Yoshihiro Kokubo, Momoyo Kida, Yoshinobu Maeda, Kazunori Ikebe, Takahiro Ono
{"title":"Association between decreased occlusal support and diabetes mellitus diagnosed by the oral glucose tolerance test with and without periodontal disease: The Suita Study.","authors":"Takayuki Kosaka, Yoko Yoshimuta, Yoshihiro Kokubo, Momoyo Kida, Yoshinobu Maeda, Kazunori Ikebe, Takahiro Ono","doi":"10.2186/jpr.JPR_D_24_00147","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00147","url":null,"abstract":"<p><strong>Purpose: </strong>Several studies have reported a close association between periodontal disease (PD) and diabetes mellitus (DM). In addition, the decline in masticatory function due to decreased occlusal support may worsen DM due to poor nutritional intake. We aimed to elucidate the relationship between PD, decreased occlusal support, and DM.</p><p><strong>Methods: </strong>We surveyed 968 participants (411 men and 557 women) aged 50-79 years in the Suita study. An oral glucose tolerance test was performed with 75 g glucose, and fasting and 2 h post-challenge plasma glucose levels were measured. The participants were classified into following four groups: normal glucose tolerance, impaired fasting glucose (IFG), impaired glucose tolerance (IGT), and DM. Occlusal support was evaluated by the Eichner Index. PD was assessed using the Community Periodontal Index, and participants were classified into two groups: without PD and with PD. Logistic regression analysis was performed using the incidence of IFG, IGT, and DM as objective variables in the without PD and PD groups.</p><p><strong>Results: </strong>In the without PD group, body mass index (BMI) was significantly associated with IFG, IGT, and DM, and a history of hypertension was significantly associated with DM. In the PD group, male sex and BMI were significantly associated with IGT and DM, a history of hypertension was significantly associated with DM, and decreased occlusal support was significantly associated with IGT and DM.</p><p><strong>Conclusions: </strong>Decreased occlusal support was associated with DM in patients with PD.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced vertical bone augmentation in rat parietal bone using hydroxyapatite-coated polytetrafluoroethylene domes with Erbium Yttrium Aluminum Garnet pulsed laser deposition. 铒钇铝石榴石脉冲激光沉积羟基磷灰石包覆聚四氟乙烯穹顶增强大鼠顶骨垂直骨增强。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-06 DOI: 10.2186/jpr.JPR_D_24_00201
Takeryo Adachi, Ken-Ichiro Yasui, Aki Nishiura, Jun-Ichiro Jo, Shigeki Hontsu, Yoshiya Hashimoto, Naoyuki Matsumoto
{"title":"Enhanced vertical bone augmentation in rat parietal bone using hydroxyapatite-coated polytetrafluoroethylene domes with Erbium Yttrium Aluminum Garnet pulsed laser deposition.","authors":"Takeryo Adachi, Ken-Ichiro Yasui, Aki Nishiura, Jun-Ichiro Jo, Shigeki Hontsu, Yoshiya Hashimoto, Naoyuki Matsumoto","doi":"10.2186/jpr.JPR_D_24_00201","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00201","url":null,"abstract":"<p><strong>Purpose: </strong>To perform vertical bone augmentation on rat parietal bone by coating the inner surface of dense polytetrafluoroethylene (d-PTFE) domes with hydroxyapatite (HA) using Erbium Yttrium Aluminum Garnet (Er:YAG) pulsed laser deposition in a rat model.</p><p><strong>Methods: </strong>The d-PTFE plate surface, α-tricalcium phosphate (α-TCP) coating, and HA coating were measured using scanning electron microscopy and X-ray diffraction to confirm the replacement of α-TCP with HA via high-pressure steam sterilization. The dome was glued to the center of the rat parietal bone and closed with periosteal and epithelial sutures. The rats were euthanized at 4, 8, and 12 weeks postoperatively, and the d-PTFE dome and surrounding tissues were harvested for radiological and histological evaluation.</p><p><strong>Results: </strong>In a group without HA coating (control group), a small amount of layered neosteum was observed in the d-PTFE dome. Conversely, a new balloon-shaped bone was observed in a HA-coated group (experimental group). Bone growth and number of bone beams were higher in the HA-coated group from 4 to 12 weeks postoperatively than those in the control group. However, no significant differences in bone mineral density values or bone bridge widths were observed.</p><p><strong>Conclusions: </strong>The HA coating enhanced bone augmentation without bone replacement. Histological findings indicated that the new bone comprised normal bone tissue with cartilage lumen and matrix. Therefore, our results indicate that bone augmentation with a HA coating may be mediated by endochondral ossification, a process similar to that of ectopic ossification.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bonding efficacy of highly translucent zirconia and lithium disilicate glass ceramics after femtosecond laser irradiation. 飞秒激光辐照后高半透明氧化锆和二硅酸锂玻璃陶瓷的键合效果。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-06 DOI: 10.2186/jpr.JPR_D_24_00134
Kaiqi Xu, Masanao Inokoshi, Kumiko Yoshihara, Masayuki Kakehata, Hidehiko Yashiro, Rena Takahashi, Mao Yamamoto, Shingo Kamijo, Masaomi Ikeda, Shunsuke Minakuchi
{"title":"Bonding efficacy of highly translucent zirconia and lithium disilicate glass ceramics after femtosecond laser irradiation.","authors":"Kaiqi Xu, Masanao Inokoshi, Kumiko Yoshihara, Masayuki Kakehata, Hidehiko Yashiro, Rena Takahashi, Mao Yamamoto, Shingo Kamijo, Masaomi Ikeda, Shunsuke Minakuchi","doi":"10.2186/jpr.JPR_D_24_00134","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00134","url":null,"abstract":"<p><strong>Purpose: </strong>This study investigated the effects of femtosecond laser (FL) irradiation on the surface roughness and shear bond strength of high-translucency zirconia (6 mol% yttria-partially stabilized zirconia [6Y-PSZ]) and lithium disilicate (Li<sub>2</sub>SiO<sub>3</sub>) glass ceramics.</p><p><strong>Methods: </strong>Fully sintered square-shaped specimens of 6Y-PSZ (7 groups; 20 specimens/group) and Li<sub>2</sub>SiO<sub>3</sub> (8 groups; 20 specimens/group) were surface-treated via sandblasting (50-μm alumina sand or glass beads) or FL irradiation (20- or 40-μm dot or cross-line patterns) or using Monobond Etch & Prime (Ivoclar Vivadent AG; only for Li<sub>2</sub>SiO<sub>3</sub> specimens). The surface roughness (arithmetic average [Sa] and developed interfacial area ratio [Sdr]) and shear bond strength after 24 h and 10,000 thermal cycles were measured and statistically analyzed.</p><p><strong>Results: </strong>The surface roughness of both ceramics significantly increased after 40-μm cross-line FL irradiation. The Sdr also significantly increased after FL irradiation. The 20- and 40-μm cross-line laser-irradiated 6Y-PSZ samples showed the highest shear bond strength after 24 h and 10,000 thermal cycles, respectively. Li<sub>2</sub>SiO<sub>3</sub> glass-ceramic specimens showed the highest shear bond strength after Monobond Etch & Prime treatment for both groups. The 40-μm cross-line laser-irradiated Li<sub>2</sub>SiO<sub>3</sub> glass-ceramic specimens exhibited high shear bond strength after thermal cycling.</p><p><strong>Conclusions: </strong>FL significantly increases the bonding efficacy of 6Y-PSZ and Li<sub>2</sub>SiO<sub>3</sub> glass ceramics. Furthermore, Monobond Etch & Prime is effective for the surface treatment of Li<sub>2</sub>SiO<sub>3</sub> glass ceramics. Therefore, FL can be used to effectively treat the surfaces of dental restorations in clinical settings, facilitating enhanced adhesion between the restoration and the tooth.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comprehensive review of polyetheretherketone use in dentistry. 聚醚醚酮在牙科中的应用综述。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-06 DOI: 10.2186/jpr.JPR_D_24_00142
Yongheng Zhang, Weifang Zhang, Mingyuan Yang, Li Mengqi, Liping Zhou, Ying Liu, Lvhua Liu, Yanyan Zheng
{"title":"Comprehensive review of polyetheretherketone use in dentistry.","authors":"Yongheng Zhang, Weifang Zhang, Mingyuan Yang, Li Mengqi, Liping Zhou, Ying Liu, Lvhua Liu, Yanyan Zheng","doi":"10.2186/jpr.JPR_D_24_00142","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00142","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to comprehensively summarize the current state, shortcomings, and challenges regarding the use of polyetheretherketone (PEEK) in various fields of stomatology.</p><p><strong>Study selection: </strong>This study reviewed articles retrieved from PubMed, Google Scholar, Web of Science, and ScienceDirect databases. The main keywords used during the search included \"polyetheretherketone (PEEK),\" \"dental materials,\" \"orthodontics,\" \"prosthodontics,\" \"oral implantology,\" \"oral and maxillofacial surgery,\" \"periodontics\" \"osseointegration,\" and \"surface modification.\"</p><p><strong>Results: </strong>Numerous studies have highlighted the properties of PEEK that contribute to its usefulness in dentistry, including its high biocompatibility, fracture resistance, aesthetics, radiolucency, and bone-like mechanical properties. Promising applications of PEEK in dentistry include orthodontic archwires, interceptive orthodontic appliances, fixed lingual retainers, crowns, post and cores, fixed partial dentures, removable partial dentures, maxillofacial prostheses, dental implants, implant abutments, alveolar bone scaffolds, jaw reconstruction, temporomandibular joint reconstruction, periodontal splints, and occlusal splints. In addition, many in vitro and in vivo experiments have demonstrated that the in vivo bone integration capability can be effectively improved using advanced surface modification technologies.</p><p><strong>Conclusions: </strong>PEEK has been explored in several dentistry fields owing to its excellent properties. PEEK and its modifications are most frequently used in clinical dentistry. However, most of its applications are based on in vitro or short-term in vivo evaluations. Additional long-term clinical data are required to demonstrate the applicability and superiority of PEEK in dentistry.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficacy of different intraarticular injection materials in the arthrocentesis of arthrogenic temporomandibular disorders: A systematic review and network meta-analysis of randomized controlled trials. 不同关节内注射材料在关节源性颞下颌紊乱的关节置换术中的疗效:随机对照试验的系统回顾和网络荟萃分析。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-06 DOI: 10.2186/jpr.JPR_D_23_00272
Kata Kelemen, János König, Szilárd Váncsa, Bence Szabó, Péter Hegyi, Gábor Gerber, Péter Schmidt, Péter Hermann
{"title":"Efficacy of different intraarticular injection materials in the arthrocentesis of arthrogenic temporomandibular disorders: A systematic review and network meta-analysis of randomized controlled trials.","authors":"Kata Kelemen, János König, Szilárd Váncsa, Bence Szabó, Péter Hegyi, Gábor Gerber, Péter Schmidt, Péter Hermann","doi":"10.2186/jpr.JPR_D_23_00272","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_23_00272","url":null,"abstract":"<p><strong>Purpose: </strong>Arthrogenic temporomandibular disorders (TMDs) that do not respond to conservative treatment necessitate the use of semi-conservative methods, such as arthrocentesis. However, the ranking of intraarticular devices used in arthrocentesis remains controversial. Therefore, a network meta-analysis and systematic review were conducted to compare the different materials used for arthrocentesis.</p><p><strong>Study selection: </strong>Databases of Cochrane Library, EMBASE, PubMed, and Web of Science were searched systematically to retrieve randomized controlled trials (RCTs) published in English comparing the efficacy of different intraarticular materials used for arthrocentesis. The mean differences (MD) and 95% confidence interval (CI) were calculated for maximum mouth opening (MMO) and pain perception using Bayesian network meta-analysis.</p><p><strong>Results: </strong>Among the 7674 studies retrieved, 13 RCTs were included in the quantitative synthesis. Evaluation of the short-term follow-up (1-3 months) outcomes revealed that saline-platelet-rich plasma (saline-PRP) and saline-steroid yielded the greatest improvement in MMO, with MDs of 3.49 (CI: -4.23, 10.81) and 3.36 (CI: -4.70, 10.46), respectively. Saline-PRP exhibited improvement in terms of pain reduction (MD=-2.72 (CI: -5.80, 0.35). Evaluation of the long-term follow-up outcomes revealed that saline-PRP yielded promising results for both outcomes: MD of 1.58 (CI: -6.84, 9.92) and -2.79 (CI: -9.44, 3.60) for MMO and pain reduction, respectively.</p><p><strong>Conclusion: </strong>Saline-PRP injection led to a clinically noticeable shift in MMO and pain perception in the short term; in contrast, the results of saline-PRP, saline-hyaluronic acid (HA), and saline steroids were statistically insignificant. Saline-HA and saline-steroid effectively increased MMO in the long term, whereas saline-PRP yielded the most distinct reduction in pain.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of different CAD-CAM post and core materials in endodontically treated teeth without ferrule and with non-circular root canals: 3D finite element analysis. 不同CAD-CAM桩核材料对无卡箍和非圆根管根管治疗牙的影响:三维有限元分析
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-06 DOI: 10.2186/jpr.JPR_D_24_00170
Chonnapha Phattanaphirom, Pongsakorn Poovarodom, Onauma Angwaravong, Thidarat Angwarawong
{"title":"Effect of different CAD-CAM post and core materials in endodontically treated teeth without ferrule and with non-circular root canals: 3D finite element analysis.","authors":"Chonnapha Phattanaphirom, Pongsakorn Poovarodom, Onauma Angwaravong, Thidarat Angwarawong","doi":"10.2186/jpr.JPR_D_24_00170","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00170","url":null,"abstract":"<p><strong>Purpose: </strong>Restoring ferrule-lacking, noncircular canal endodontically treated teeth (ETT) poses challenges owing to the increased susceptibility to root fracture and post dislodgement. We aimed to evaluate the influence of different post and core materials on the stress distribution and maximum Von Mises stress in ETT.</p><p><strong>Methods: </strong>Four three-dimensional models were generated using different customized post and core materials: gold alloy, resin nanoceramic, polyetheretherketone (PEEK), and polyetherketoneketone (PEKK). A static load of 200 N was applied at an angle of 45 ° to the occlusal surface. The stress distribution and maximum Von Mises stress were analyzed using finite element analysis.</p><p><strong>Results: </strong>The stress distribution patterns in all the models were concentrated in the tooth structure, post and core, and cortical bone. The gold model exhibited stress accumulation predominantly on the buccal side along the post length, with the highest maximum Von Mises stress value (330.69 MPa). The resin nanoceramic model exhibited an even stress distribution. The PEEK and PEKK models showed stress transfer to adjacent structures with the lowest maximum Von Mises stress values in the post and core sections (21.50 MPa and 29.46 MPa, respectively).</p><p><strong>Conclusions: </strong>Different post and core materials influenced the stress distribution and maximum Von Mises stress values in ferrule-lacking, noncircular canal ETT. Resin nanoceramics have emerged as promising alternative materials, exhibiting an even stress distribution owing to their similar elasticity to dentin, thus potentially mitigating the risk of root fracture and post debonding.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative analysis of basal bone width as an index for immediate implant placement in the aesthetic zone: A retrospective study. 定量分析的基础骨宽度作为一个指标,立即种植体放置在美学区:回顾性研究。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-04 DOI: 10.2186/jpr.JPR_D_23_00299
Mengru Shi, Shijie Chen, Haiwen Liu, Gengbin Cai, Zhuohong Gong, Jiamin Shi, Guangqi Gao, Zhuofan Chen, Quan Liu, Zetao Chen
{"title":"Quantitative analysis of basal bone width as an index for immediate implant placement in the aesthetic zone: A retrospective study.","authors":"Mengru Shi, Shijie Chen, Haiwen Liu, Gengbin Cai, Zhuohong Gong, Jiamin Shi, Guangqi Gao, Zhuofan Chen, Quan Liu, Zetao Chen","doi":"10.2186/jpr.JPR_D_23_00299","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_23_00299","url":null,"abstract":"<p><strong>Purpose: </strong>The basal bone of the anterior maxilla plays a crucial role in maintaining primary stability of immediate implants. However, no consensus exists on the relationship between basal bone width and immediate implant success, unlike for basal bone length. This study presents a clinical scheme to predict the primary stability of immediate implants using the basal bone width.</p><p><strong>Methods: </strong>Cone-beam computed tomography (CBCT) images were acquired from 1000 patients to determine the quantitative characteristics of the basal bone of the anterior maxilla. Basal bone dimensions, including the length and width along the tooth and bone axes, and immediate implant-related hard tissue indices, were measured on the sagittal sections. Descriptive statistics, frequency, multiple correlation, and canonical correlation analyses were performed.</p><p><strong>Results: </strong>Basal bone indices were significantly greater in men than in women and exhibited different patterns of change with increasing age. Canonical correlation analyses revealed that the basal bone indices, especially basal bone width, correlated with other immediate implant-related indicators, among which the total width of the basal bone at 2 mm apical to the apex (Apical-2mm) exhibited the greatest contribution. Apical-2mm was positively correlated with the coronal bone dimensions, apical bone dimensions, basal bone length, and angulation.</p><p><strong>Conclusions: </strong>The basal bone width of the maxillary anterior tooth may reflect the distribution of other implant-related anatomical indices, which may provide an additional reference for predicting the primary stability of an immediate implant.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of 3D printing orientations on physico-mechanical properties and accuracy of additively manufactured dental ceramics. 3D打印方向对增材牙科陶瓷物理力学性能和精度的影响。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-04 DOI: 10.2186/jpr.JPR_D_24_00092
Mohammed Ahmed Alghauli, Sarah Almuzaini, Rola Aljohani, Ahmed Yaseen Alqutaibi
{"title":"Influence of 3D printing orientations on physico-mechanical properties and accuracy of additively manufactured dental ceramics.","authors":"Mohammed Ahmed Alghauli, Sarah Almuzaini, Rola Aljohani, Ahmed Yaseen Alqutaibi","doi":"10.2186/jpr.JPR_D_24_00092","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00092","url":null,"abstract":"<p><strong>Purpose: </strong>This systematic review aims to assess the impact of different 3D printing orientations on the physico-mechanical properties, volumetric change, and accuracy of additively manufactured ceramic specimens, as well as their restorations.</p><p><strong>Study selection: </strong>The web database containing records for building orientation of 3D-printed ceramics until January 2024 was searched, with no language limitations. PRISMA 2020 guidelines were followed, and the risk of bias was evaluated using the modified CONSORT checklist for laboratory studies on dental materials. The RevMan 5.4 of Cochrane collaboration was used for the meta-analysis with α<0.05.</p><p><strong>Results: </strong>In this systematic review, 35 out of 2967 records were considered. The printing orientations had a significant influence on the mechanical properties of the additively manufactured specimens (P < 0.05), specifically, the horizontally printed specimens exhibited the best mechanical behavior, while the physical properties exhibited controversial results. Additionally, the printing orientations had a significant impact on the volumetric shrinkage and accuracy of molar teeth (P < 0.05).</p><p><strong>Conclusions: </strong>The ideal mechanical outcome was observed when ceramic specimens were 3D-printed in a horizontal direction relative to the platform, while vertically printed specimens showed the worst properties. The printing orientations affect the volumetric change of the specimens; however, volumetric change highly depends on the sintering parameters. It is recommended to 3D print ceramic molar crowns at 180° with the occlusal surface facing the printing platform.</p><p><strong>Clinical significance: </strong>Several factors affect the additively manufactured restorations throughout the printing procedure. Therefore, printing orientation should be carefully considered before the additive production process of ceramic restorations.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Finite element analysis of stress distribution in cantilever resin-bonded zirconia fixed dental prosthesis and periodontal tissue with alveolar bone loss. 牙槽骨缺损时悬臂树脂结合氧化锆修复体与牙周组织应力分布的有限元分析。
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-04 DOI: 10.2186/jpr.JPR_D_24_00148
Yayoi Oishi, Kosuke Nozaki, Reina Nemoto, Yin Yue, Mayuko Matsumura, Omnia Saleh, Kenji Fueki
{"title":"Finite element analysis of stress distribution in cantilever resin-bonded zirconia fixed dental prosthesis and periodontal tissue with alveolar bone loss.","authors":"Yayoi Oishi, Kosuke Nozaki, Reina Nemoto, Yin Yue, Mayuko Matsumura, Omnia Saleh, Kenji Fueki","doi":"10.2186/jpr.JPR_D_24_00148","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00148","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the stress distribution in loaded zirconia resin-bonded fixed dental prostheses (RBFDPs) and periodontal tissue using finite element analysis, considering reduced alveolar bone levels and the number of retainers.</p><p><strong>Methods: </strong>A human skull was micro-CT scanned. Three framework designs were tested: a 2-unit RBFDP using the maxillary left central incisor (#21) as an abutment, another using a canine (#23), and a 3-unit RBFDP using both #21 and #23. The models were categorized based on the distance from the cemento-enamel junction (CEJ) to the alveolar bone: M1 (1 mm), M2 (2 mm), M4 (4 mm), M6 (6 mm), and M8 (8 mm).</p><p><strong>Results: </strong>The shear stresses in the adhesive resin cement were lower in the 2-unit designs than in the 3-unit design in the M4-M8 models. The maximum principal stresses in the framework were smaller in the 2-unit design than in the 3-unit design for all models. The maximum principal strains in the periodontal ligament and trabecular bone in #21 were greater in the 2-units than in the 3-units in the M4-M8 models.</p><p><strong>Conclusions: </strong>This study suggests that cantilever RBFDPs may have a lower risk of framework fracture than 2-retainer RBFDPs, regardless of the reduction in alveolar bone levels. In cases with alveolar bone levels >4 mm below the CEJ, the cantilever RBFDPs had a smaller risk of debonding than the 2-retainer RBFDPs; however, it may increase the damage to periodontal tissue.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mediating role of fruit and vegetable intake and social interaction between oral function and mental health in older adults aged ≥75 years: The SONIC study. 75岁以上老年人口腔功能与心理健康的中介作用:SONIC研究
IF 3.2 2区 医学
Journal of prosthodontic research Pub Date : 2025-01-04 DOI: 10.2186/jpr.JPR_D_24_00103
Tomoaki Mameno, Paula Moynihan, Takeshi Nakagawa, Hiroki Inagaki, Suzuna Akema, Yuki Murotani, Satoko Takeuchi, Ayaka Kimura, Yoshie Okada, Yoshitaka Tsujioka, Kotaro Higashi, Hiromasa Hagino, Yusuke Mihara, Takayuki Kosaka, Masahiro Wada, Yoshinobu Maeda, Yasuyuki Gondo, Kei Kamide, Hiroshi Akasaka, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Kazunori Ikebe
{"title":"Mediating role of fruit and vegetable intake and social interaction between oral function and mental health in older adults aged ≥75 years: The SONIC study.","authors":"Tomoaki Mameno, Paula Moynihan, Takeshi Nakagawa, Hiroki Inagaki, Suzuna Akema, Yuki Murotani, Satoko Takeuchi, Ayaka Kimura, Yoshie Okada, Yoshitaka Tsujioka, Kotaro Higashi, Hiromasa Hagino, Yusuke Mihara, Takayuki Kosaka, Masahiro Wada, Yoshinobu Maeda, Yasuyuki Gondo, Kei Kamide, Hiroshi Akasaka, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Kazunori Ikebe","doi":"10.2186/jpr.JPR_D_24_00103","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00103","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to explore the association between oral function and mental health status in older adults and to determine the potential mediating roles of fruit and vegetable intake and social interaction.</p><p><strong>Methods: </strong>This cross-sectional study included 478 community-dwelling older adults aged ≥75 years in Japan. Oral functions (occlusal force, masticatory performance, tongue pressure, tongue-lip motor function, and swallowing function), mental health status, dietary assessment, frequency of outings and interactions with others, and the following confounders were evaluated: educational level, financial satisfaction, residential status, comorbidities, and cognitive function. Structural equation modeling was used to assess the following: (a) a basic model, which hypothesized that oral function has a direct effect on mental health status, and (b) a mediation model, which hypothesized that fruit and vegetable intake and social interaction have potential mediating effects on the association between oral function and mental health status.</p><p><strong>Results: </strong>The basic model revealed a positive direct association between oral function and mental health status (standardized coefficient = 0.10, P = 0.04). Fruit and vegetable intake and social interactions were identified as mediators; however, no direct association with oral function was observed in the mediation model (P = 0.28), indicating that oral function was indirectly associated with mental health status through the mediating effects of fruit and vegetable intake and social interactions.</p><p><strong>Conclusions: </strong>Oral function showed a significant association with mental health status in community-dwelling older adults. Fruit and vegetable intake along with social interactions mediate this relationship.</p>","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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