Journal of Prosthetic Dentistry最新文献

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Association between maxillary incisor width and craniofacial measurements: A cone beam computed tomography study. 上颌切牙宽度与颅面测量之间的关系:锥形束计算机断层扫描研究
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-23 DOI: 10.1016/j.prosdent.2024.09.007
Ra'fat I Farah
{"title":"Association between maxillary incisor width and craniofacial measurements: A cone beam computed tomography study.","authors":"Ra'fat I Farah","doi":"10.1016/j.prosdent.2024.09.007","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.09.007","url":null,"abstract":"<p><strong>Statement of problem: </strong>Accurate prediction of maxillary central incisor width (CIW) is essential in prosthodontics for selecting appropriately sized denture teeth. While traditional methods exist, the digital era may offer more reliable techniques for anterior tooth selection.</p><p><strong>Purpose: </strong>The purpose of this study was to investigate the correlation between CIW and craniofacial measurements derived from cone beam computed tomography (CBCT) scans to identify predictors for CIW and examine possible sexual dimorphism.</p><p><strong>Material and methods: </strong>A retrospective analysis was conducted on 80 three-dimensional skull models (40 men, 40 women; age range: 20 to 48 years) generated from segmented CBCT scans. Measurements included CIW, interpterygoid hamulus distance, bi-orbital width, interorbital distance, and piriform aperture width. Statistical analyses comprised independent t tests, bivariate correlations, and multiple linear regression (α=.05).</p><p><strong>Results: </strong>Significant sexual dimorphism was observed in CIW, interpterygoid hamulus distance, and bi-orbital width (P<.05). CIW positively correlated with bi-orbital width (r=.75, P<.001) and piriform aperture width (r=.49, P<.001). Multiple regression analysis revealed bi-orbital width, and interorbital distance, along with sex, as significant predictors of CIW (R²=.59, P<.001).</p><p><strong>Conclusions: </strong>Bony bi-orbital width, interorbital distance, and sex can be used to estimate the maxillary CIW.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142348938","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
Prospective cohort study to evaluate narrow diameter implants for the restoration of a missing maxillary lateral incisor in patients with a cleft palate: Five-year results. 前瞻性队列研究,评估窄直径种植体修复腭裂患者上颌侧切牙缺失的效果:五年结果。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-21 DOI: 10.1016/j.prosdent.2024.07.048
Lisa A Knobloch, Peter Larsen, Anita Gohel, Edwin McGlumphy, Robin Messner, William Johnston, Paola Saponaro
{"title":"Prospective cohort study to evaluate narrow diameter implants for the restoration of a missing maxillary lateral incisor in patients with a cleft palate: Five-year results.","authors":"Lisa A Knobloch, Peter Larsen, Anita Gohel, Edwin McGlumphy, Robin Messner, William Johnston, Paola Saponaro","doi":"10.1016/j.prosdent.2024.07.048","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.07.048","url":null,"abstract":"<p><strong>Statement of problem: </strong>The maxillary lateral incisor is often congenitally missing in patients with a cleft palate. The congenital cleft presents the practitioner with challenges including quantity and quality of bone, a surgically managed cleft correction, and limited clinical space.</p><p><strong>Purpose: </strong>The purpose of this investigation was to calculate the 5-year success and survival rate of narrow-diameter implants used to restore a missing lateral incisor in patients with a cleft palate.</p><p><strong>Material and methods: </strong>Fourteen study participants with a cleft palate and a missing maxillary lateral incisor were enrolled based on established criteria. Seventeen narrow-diameter implants (AstraTech OsseoSpeed 3.0S and OsseoSpeed TX 3.5 mm) were placed using a 2-stage protocol and restored with a custom titanium abutment and a cement-retained crown. Clinical and radiographic examinations were performed annually for 5 years. Four probe depth measurements were measured and evaluated using an analysis of covariance (ANCOVA) with Tukey-Kramer multiple comparisons tests. Radiographic marginal bone loss was measured annually using a digital subtraction technique and evaluated with ANCOVA, and the least square mean was derived. The restoration was evaluated using Pink (PES) and White (WES) Esthetic scores.</p><p><strong>Results: </strong>Regarding probing depth measurements, a significant variance was found between the 4 locations (P<.001), and a linear effect of year was also found (P=.005). The multiple comparisons tests showed the mean buccal probe depth was lower compared with the mean at each of the other 3 locations (P≤.039) from baseline to 5-year follow-up. The least square mean ±standard deviation of the marginal bone loss over the 5-year entire study was 0.55 ±0.088 mm. Regarding prosthesis evaluation, the mean score for PES was 6.15 and 6.63 for the WES with a maximum score of 10. The level for clinical acceptance was set at a total score of 6. To meet the criteria for success over the 5-year period, no more than 2.3 mm of total bone loss was acceptable. The number of implants that met the criteria for success at 5 years was 92%. Regarding survival, the number of implants still in place, functional, and asymptomatic at 5 years was 100%.</p><p><strong>Conclusions: </strong>Based on the findings, the peri-implant soft tissue probe depths exhibited significant change during the 5-year investigation. Regarding esthetic outcomes, single tooth NDI for replacing a lateral incisor in the cleft patient is a clinically acceptable treatment. Narrow-diameter implants may be a reliable treatment for replacing a missing lateral incisor in patients with a cleft at 5-year follow-up with an implant survival rate of 100% and a success rate of 92%.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289770","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
A digital workflow for fabricating a mandibular guide plane prosthesis for patients about to undergo hemimandibulectomy: A dental technique. 为即将接受半下颌骨切除术的患者制作下颌导板修复体的数字化工作流程:牙科技术。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.08.015
Dan Ma, Yujiao Wang, Xin Wang, Yuying Zheng, Shizhu Bai
{"title":"A digital workflow for fabricating a mandibular guide plane prosthesis for patients about to undergo hemimandibulectomy: A dental technique.","authors":"Dan Ma, Yujiao Wang, Xin Wang, Yuying Zheng, Shizhu Bai","doi":"10.1016/j.prosdent.2024.08.015","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.015","url":null,"abstract":"<p><p>Patients who undergo hemimandibulectomy have multiple functional impairments, and early initiation of guidance therapy has been associated with an improved definitive occlusal relationship. This article describes a digital workflow to determine the angle and form the shape of the flange of the mandibular guide plane prosthesis (MGPP), and to create an MGPP before mandibular resection surgery. A virtual articulator was used to achieve the movements of the maxilla relative to the mandible, and the shape of the MGPP was adjusted by dynamic occlusion. The MGPP and mandibular case were printed using a digital light processing (DLP) printer. This technique avoids intraoral procedures such as making impression and tooth preparation when mouth opening is limited after surgery and enables early functional training.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289760","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
Oral impact of dental prosthesis use in different patterns of tooth loss. 在不同的牙齿缺失模式中使用义齿对口腔的影响。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.08.018
Victor Nascimento Fontanive, Brenda Broch, Mariana Seoane, Renato José De Marchi, Fernando Neves Hugo, Roger Keller Celeste
{"title":"Oral impact of dental prosthesis use in different patterns of tooth loss.","authors":"Victor Nascimento Fontanive, Brenda Broch, Mariana Seoane, Renato José De Marchi, Fernando Neves Hugo, Roger Keller Celeste","doi":"10.1016/j.prosdent.2024.08.018","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.018","url":null,"abstract":"<p><strong>Statement of problem: </strong>Tooth loss is a critical indicator of oral health and negatively impacts oral health-related quality of life (OHRQoL) depending on the number and location of the missing teeth. Reports of oral rehabilitation have been conflicting depending on the tooth loss pattern and prostheses provided.</p><p><strong>Purpose: </strong>The purpose of this population-based study was to evaluate the association between the use of different dental prostheses according to different tooth loss patterns and OHRQoL.</p><p><strong>Material and methods: </strong>A representative sample of 22 843 individuals aged between 15 and 75 years was recruited in Brazil. The dependent variable was the OHRQoL as measured by the score on the oral impact on daily performance (OIDP), and the main predictor was the pattern of tooth loss and prosthesis use. Covariates included sex, age, income, education, missing teeth, dental pain, and dental visits. The zero-inflated negative binomial regression was applied with sampling weights.</p><p><strong>Results: </strong>Participants with only anterior missing teeth had an OIDP mean ratio, MR) 1.49 times higher than those without tooth loss and not wearing a prosthesis (95% CI=1.12-1.98); those with a distal extension, with anterior tooth loss MR=1.68 (95%CI=1.17-2.43); and complete edentulism in one or both jaws MR=1.53 (95%CI=1.04-2.25). Participants wearing a removable partial denture (RPD) or a combination of an RPD and fixed prostheses with a few missing teeth reported worse OIDP (MR=3.57, 95% CI=2.11-6.04) than those with fixed prostheses only or without a prosthesis. Individuals with edentulism using complete dentures in both jaws had lower OIDP scores (MR=0.9, 95% CI=0.59-1.37) than those using or those who do not use other categories of prosthetic rehabilitation.</p><p><strong>Conclusions: </strong>Some types of prosthetic rehabilitation were not associated with better OHRQoL in individuals with tooth loss. The impact of prosthetic rehabilitation was associated with the pattern of tooth loss.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289769","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 ceramic thickness on the polymerization quality and film thickness of dual-polymerizing versus heated light-polymerizing adhesive cement. 陶瓷厚度对双聚合与加热光聚合粘合剂的聚合质量和薄膜厚度的影响。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.09.004
Bilal Secundar, Amirhossein Fathi, Kimia Baghaei, Ramin Atash
{"title":"Effect of ceramic thickness on the polymerization quality and film thickness of dual-polymerizing versus heated light-polymerizing adhesive cement.","authors":"Bilal Secundar, Amirhossein Fathi, Kimia Baghaei, Ramin Atash","doi":"10.1016/j.prosdent.2024.09.004","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.09.004","url":null,"abstract":"<p><strong>Statement of problem: </strong>The clinical success of ceramic veneers cemented with preheated composite resin has been reported to be acceptable. Although the cementing technique requires sufficient light energy to activate its polymerization, the ability of light to penetrate through ceramic restorations of different thicknesses is unclear.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to evaluate the polymerization quality and bond joint thickness of a dual-component adhesive and a heated composite resin when bonding ceramic onlays of varying thicknesses.</p><p><strong>Material and methods: </strong>Sixty noncarious maxillary premolars, extracted for orthodontic or periodontal reasons, were divided into 6 groups (n=10) and sectioned apically to the marginal ridge. Computer-aided design and computer-aided manufacturing (CAD-CAM) was used to create onlays of varying thicknesses. Following the manufacturers ' instructions, the onlays were cemented using a dual-polymerizing resin for group DP1, DP2, and DP3 groups and preheated light-polymerizing resin for groups LP1, LP2, and LP3. The numbers indicate onlay thickness in each group. Vickers testing was performed 24 hours after polymerization, with a 0.49-N static load applied for 10 seconds. Film thickness was analyzed under an optical microscope, and temperature changes were measured using a thermal imaging camera. Statistical analysis was done with the 2-factor mixed ANOVA tests (α=.05).</p><p><strong>Results: </strong>The Vickers hardness of a dual-polymerizing cement was lower compared with heated light-polymerizing cement (P<.05). Moreover, the thickness of the resin-ceramic restoration did not significantly affect the polymerization of a dual-polymerizing cement. However, the polymerization of the preheated light-polymerizing composite resin in group LP3 was significantly lower compared with other thicknesses (P<.05). In group LP3, the Vickers hardness of the tooth adjacent to the surface of the cement (DX2) was lower compared with indentations closer to the restoration surface (DX3, DX6), demonstrating a reduction in polymerization in the internal part. In addition, the mean film thickness of the dual-polymerizing groups (96 ±18 µm) was significantly lower than of the heated light-polymerizing groups (294 ±64 µm) (P<.05). A temperature reduction of 15 °C in the heated composite resin was also observed after 8 seconds CONCLUSIONS: The thickness of the ceramic restoration did not significantly affect the polymerization of a dual-polymerizing cement. However, the polymerization of the preheated light-polymerizing composite resin under the same ceramic restoration with a thickness of 3 mm was significantly lower. In addition, the mean film thickness for the dual-polymerizing composite resin groups was significantly lower than for the heated light-polymerizing composite resin groups.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289765","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
Accuracy of an autonomous dental implant robotic system in placing tilted implants for edentulous arches. 自主牙科植入机器人系统在为无牙弓植入倾斜植入体时的准确性。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.07.032
Shuang Xi, Jun Hu, Guangna Yue, Shaohai Wang
{"title":"Accuracy of an autonomous dental implant robotic system in placing tilted implants for edentulous arches.","authors":"Shuang Xi, Jun Hu, Guangna Yue, Shaohai Wang","doi":"10.1016/j.prosdent.2024.07.032","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.07.032","url":null,"abstract":"<p><strong>Statement of problem: </strong>Accurate placement of tilted implants is essential as they are typically close to important anatomic structures. Inaccurate implant position may damage those structures and affect outcomes.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to compare the accuracy and efficiency of an autonomous dental implant robotic (ADIR) system and a static computer-assisted implant surgery (sCAIS) system in placing tilted implants in edentulous patients.</p><p><strong>Material and methods: </strong>Ten 3-dimensionally (3D) printed edentulous mandibular casts were assigned to 1 of 2 groups (ADIR and sCAIS). The coronal, apical, and angular deviations of the placement of tilted implants, preoperative preparation time, and surgical time were compared between the 2 groups. The paired samples t test and the independent samples t test were used to compare the groups (α=.05).</p><p><strong>Results: </strong>The mean ±standard deviation of coronal, apical, and angular deviation in the ADIR group and sCAIS group were 0.47 ±0.06 mm versus 1.09 ±0.11 mm, 0.47 ±0.05 mm versus 1.53 ±0.14 mm, and 0.91 ±0.82 degrees versus 2.83 ±0.55 degrees, respectively. The deviations of the tilted implant positions in the ADIR were relatively small and significantly different from those of sCAIS (P<.05). The preoperative preparation time of the ADIR group was significantly longer than that of the sCAIS group (P<.001), and the surgical time for the 2 groups was statistically similar (P=.259).</p><p><strong>Conclusions: </strong>Compared with the sCAIS system, the deviation of tilted implants in the ADIR group was smaller, but the preoperative preparation time was longer. The results indicated that using the ADIR for tilted implantation can lead to more accurate implantation positions and reduce the occurrence of complications. However, it is time consuming, and the workflow should be simplified to improve efficiency.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289762","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
Additive manufacturing trueness and internal fit of crowns in resin modified with a commercially available ceramic composite concentrate. 使用市售陶瓷复合材料浓缩物改性的树脂牙冠的增材制造真实度和内部配合度。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.09.005
Gabriela Panca Sabatini, Mustafa Borga Dönmez, Gülce Çakmak, Münir Demirel, Nadin Al-Haj Husain, Newton Sesma, Hyung-In Yoon, Burak Yilmaz
{"title":"Additive manufacturing trueness and internal fit of crowns in resin modified with a commercially available ceramic composite concentrate.","authors":"Gabriela Panca Sabatini, Mustafa Borga Dönmez, Gülce Çakmak, Münir Demirel, Nadin Al-Haj Husain, Newton Sesma, Hyung-In Yoon, Burak Yilmaz","doi":"10.1016/j.prosdent.2024.09.005","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.09.005","url":null,"abstract":"<p><strong>Statement of problem: </strong>Inorganic fillers can be incorporated into additively manufactured (AM) resins to improve their properties, and a ceramic composite concentrate has been recently marketed for this purpose. However, knowledge on the printability of AM resins modified with this concentrate is lacking.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to evaluate the manufacturing trueness and internal fit of AM crowns in a dental resin modified with a commercially available ceramic composite concentrate.</p><p><strong>Material and methods: </strong>A maxillary right first molar typodont tooth was prepared and digitized to design a crown in standard tessellation language (STL) format. This STL file was used to fabricate a total of 30 AM crowns, 10 with a resin with no fillers for interim restorations (AM-I), 10 AM-I resin incorporated with ceramic composite concentrate (AM-IR), and 10 with a ceramic-filled resin intended for definitive restorations (AM-D). The modification of the AM-IR resin was performed by mechanically mixing 30 wt% of a commercially available ceramic composite concentrate into AM-I. An intraoral scanner was used to digitize all crowns, which were then seated on the prepared typodont abutment and rescanned. The manufacturing trueness of each crown was measured in 4 regions (overall, external, intaglio, and marginal) and reported with root mean square (RMS) estimates. The internal gaps were calculated by using a triple scan protocol. The intaglio surface deviations were assessed with the Kruskal-Wallis and Dunn tests, while the remaining data were analyzed with the 1-way analysis of variance and Tukey honestly significant difference tests (α=.05).</p><p><strong>Results: </strong>AM-IR had the highest overall and external RMS and had higher intaglio RMS than AM-D (P≤.001). AM-I had the lowest marginal RMS (P≤.002). AM-IR had the highest average gap values (P≤.027).</p><p><strong>Conclusions: </strong>AM-IR crowns mostly had lower trueness and high internal gaps. However, the differences among the tested materials in fabrication trueness and average gap values were small, and internal gaps were within the previously reported thresholds.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289763","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
Effectiveness of postprocessing on 3D printed resin biocompatibility in prosthodontics: A systematic review. 后处理对修复学中 3D 打印树脂生物相容性的影响:系统综述。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.08.014
Alice Cabrol, Virginie Chuy, Hélène Fron-Chabouis, Adrien Naveau
{"title":"Effectiveness of postprocessing on 3D printed resin biocompatibility in prosthodontics: A systematic review.","authors":"Alice Cabrol, Virginie Chuy, Hélène Fron-Chabouis, Adrien Naveau","doi":"10.1016/j.prosdent.2024.08.014","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.08.014","url":null,"abstract":"<p><strong>Statement of problem: </strong>Additive manufacturing is used in prosthodontics for producing casts, surgical guides, and interim and definitive prostheses. Printed resin components that will be in contact with the oral mucosa must meet biocompatibility requirements in accordance with current standards for medical devices. Despite such approvals being obtained by the manufacturer, the dentist remains responsible for following the manufacturer recommendations. Evidence for the effect of postprocessing 3-dimensionally (3D) printed resin components on biocompatibility is lacking PURPOSE: The purpose of this systematic review was to assess the effectiveness of 3D printing postprocessing on the biocompatibility of resins that will be in contact with the oral mucosa.</p><p><strong>Material and methods: </strong>The PubMed, Scopus, and DOSS search engines were used to identify articles. Two independent researchers conducted the systematic review by following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines and by following a combination of keywords.</p><p><strong>Results: </strong>Of a total of 249 articles, 27 were selected, including only 1 in vivo study. Thirty-two commercially available and a few experimental resins were tested. The main applications were removable denture bases and denture teeth, interim and definitive fixed restorations, occlusal splints, and surgical guides. Postprocessing procedures were those recommended by the manufacturer, experimental, or not implemented and involving alcohol, ultrasonic or centrifugal rinsing, photopolymerization at different UV wavelengths, a nitrated atmosphere chamber with air drying or compressed air drying and with heat treatment. The majority of postprocessed 3D printed resins were reported to be noncytotoxic, implying sufficient biocompatibility.</p><p><strong>Conclusions: </strong>The heterogeneity of materials and methods did not allow the identification of an ideal postprocessing protocol or of the need for additional steps after following the manufacturer's recommendations.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289766","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
A custom CAD-CAM resilient attachment: A dental technique. 定制的 CAD-CAM 弹性附件:牙科技术
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-19 DOI: 10.1016/j.prosdent.2024.07.047
Elena Muehlemann, Jennifer Gm Chantler, Mirsad Smajovic, Franz J Strauss
{"title":"A custom CAD-CAM resilient attachment: A dental technique.","authors":"Elena Muehlemann, Jennifer Gm Chantler, Mirsad Smajovic, Franz J Strauss","doi":"10.1016/j.prosdent.2024.07.047","DOIUrl":"https://doi.org/10.1016/j.prosdent.2024.07.047","url":null,"abstract":"<p><p>Custom resilient attachments can be used for removable as well as fixed implant-supported prostheses, with the proposed tooth position being visualized in relation to the underlying metal framework, abutments, and implant positions. Custom resilient attachments and the framework for implant overdentures can be designed together using a computer-aided design software program. Computer-aided designed and computer-aided manufactured (CAD-CAM) custom resilient attachments offer greater angulation compensation than standard attachments when clinically required while accounting for biological, mechanical, and esthetic factors. Digital technology enables visualization of the outcome and streamlining the design and manufacturing of custom resilient attachments and a metal-acrylic resin implant overdenture prosthesis. The ability to customize abutments offers an additional restorative option to using stock resilient attachments.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289758","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
Letter to the Editor regarding "A method of fabricating a stackable CAD-CAM custom record tray for complete dentures" by Liao and Budsabong. 致编辑的信,内容涉及 Liao 和 Budsabong 的 "一种用于全口义齿的可堆叠 CAD-CAM 定制记录托盘的制作方法"。
IF 4.3 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2024-09-18 DOI: 10.1016/j.prosdent.2024.07.046
Huicong Zhang, Wang Wang
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