Journal of Prosthetic Dentistry最新文献

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Emergence angles of posterior implant-supported fixed dental prostheses and their effect on peri-implant bone loss: A retrospective clinical study. 后牙种植体支撑固定修复体的出现角度及其对种植体周围骨丢失的影响:回顾性临床研究。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-04 DOI: 10.1016/j.prosdent.2025.09.011
Chi-Ching Chang, Jennifer Chang, Anthony Osborne, Ali Mahmood Shaki Al Hatem, Edward Chaoho Chien, Daniel Wismeijer, Chun-Teh Lee
{"title":"Emergence angles of posterior implant-supported fixed dental prostheses and their effect on peri-implant bone loss: A retrospective clinical study.","authors":"Chi-Ching Chang, Jennifer Chang, Anthony Osborne, Ali Mahmood Shaki Al Hatem, Edward Chaoho Chien, Daniel Wismeijer, Chun-Teh Lee","doi":"10.1016/j.prosdent.2025.09.011","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.011","url":null,"abstract":"<p><strong>Statement of problem: </strong>Clinicians aim to restore dental implants with contours that replicate the natural crown. However, evidence directly comparing the emergence angles of posterior implant-supported fixed dental prostheses (FDPs) with those of natural crowns is lacking, and the influence of FDP emergence angles on peri-implant bone loss remains inconclusive.</p><p><strong>Purpose: </strong>The purpose of this retrospective clinical study was to compare the emergence angles of posterior implant-supported FDPs with those of natural crowns and to evaluate the effect of prosthesis contours on peri-implant bone stability.</p><p><strong>Material and methods: </strong>Clinical records and periapical radiographs of patients with posterior single implants and with at least a 6-month follow-up after definitive restorations were evaluated. Edentulous space width (ESW), implant placement depth (IPD), mesial and distal emergence angles (EAs) of the natural teeth (EA<sub>Tooth</sub>), implant abutments (EA<sub>Ab</sub>), and implant-supported crowns (EA<sub>Res</sub>, EA<sub>ResAb</sub>) were measured. Pearson correlation analysis was performed to evaluate the correlations between the implant emergence angles and the ratio of the edentulous space to implant diameter (ESW/∅). The suggested implant placement depth was proposed for different implant diameters based on ideal emergence angles. Univariate binary logistic regression analyses were performed to evaluate the effects of prosthesis contour and other variables on marginal bone stability (α=.050).</p><p><strong>Results: </strong>Eighty-nine implants of 75 participants were included. Overall, the EAs of implant-supported crowns (EA<sub>Res</sub>, EA<sub>ResAb</sub>) were significantly greater than those of EA<sub>Tooth</sub> (P<.05). The EA<sub>Res</sub> and EA<sub>ResAb</sub> were positively correlated with ESW/∅ (P<.05), and EA<sub>Res</sub> was negatively correlated with IPD (P<.05). The suggested implant placement depths at molars were generally greater than at premolars. The emergence angles were not significantly associated with peri-implant marginal bone stability (P>.05).</p><p><strong>Conclusions: </strong>The emergence angles of posterior implant-supported FDPs were greater than those of the natural tooth. The difference was more pronounced in molar sites than in premolar sites. However, the contour of an implant-supported FDP was not associated with peri-implant bone level change.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145232856","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
Global mapping of publications on bulk-fill techniques and composite resins in dentistry: An altmetric and bibliometric analysis. 牙科中填充技术和复合树脂出版物的全球映射:替代计量和文献计量分析。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-04 DOI: 10.1016/j.prosdent.2025.09.025
Maria de Nazaré Oliveira Rocha, Giovanna Maria Santana Dos Santos, Lucas Menezes Dos Anjos, Bruno Henriques, Mariane Cardoso, Paulo Antônio Martins-Júnior, Bianca Nubia Souza Silva, Aurélio de Oliveira Rocha
{"title":"Global mapping of publications on bulk-fill techniques and composite resins in dentistry: An altmetric and bibliometric analysis.","authors":"Maria de Nazaré Oliveira Rocha, Giovanna Maria Santana Dos Santos, Lucas Menezes Dos Anjos, Bruno Henriques, Mariane Cardoso, Paulo Antônio Martins-Júnior, Bianca Nubia Souza Silva, Aurélio de Oliveira Rocha","doi":"10.1016/j.prosdent.2025.09.025","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.025","url":null,"abstract":"<p><strong>Statement of problem: </strong>Metrics-based reviews that analyze all publications on bulk-fill composite resins to identify publication characteristics and trends are lacking.</p><p><strong>Purpose: </strong>The purpose of this study was to analyze the trends and main characteristics of articles related to bulk-fill techniques and composite resins in dentistry.</p><p><strong>Material and methods: </strong>The search was conducted in November 2024 on the Web of Science. Three researchers selected the articles and excluded conference papers. The following data were extracted from the included articles: citations; publication year and journal; study design and topic; authorship and institutions, country, continent, and keywords. Collaboration networks were generated using the VOSviewer software program. The altmetric data was measured by consulting the Dimensions database. The correlation between the data was determined by the Spearman test.</p><p><strong>Results: </strong>A total of 801 articles were included. The number of citations ranged from 0 to 270 and the articles had been published between 1988 and 2024. Most studies were laboratory-based (n=692) and evaluated restoration quality and polymerization stress (n=268), primarily high-viscosity composite resins (n=463) in adult patients (n=774). The country with the highest number of articles was Brazil (n=172), while the continent with the most publications was Asia (n=268). The most prominent author was Giannini (n=31) and co-authorship maps showed collaborations between groups of authors. According to Dimensions, significant mentions were identified mainly in news outlets and Mendeley readers, with the altmetric attention score ranging from 1 to 126.</p><p><strong>Conclusions: </strong>This study identified an emerging trend in bulk-fill composite resin research in restorative dentistry. The greatest number of studies was published in Brazil, with a strong focus on laboratory studies aiming to investigate restoration quality and polymerization stress in high-viscosity composite resins of interest to Mendeley readers. Further clinical, observational, and systematic review studies are recommended.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145232872","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
Evaluation of methods for removing stains from a 3D printed resin for denture teeth. 从3D打印树脂中去除假牙污渍的方法评估。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-03 DOI: 10.1016/j.prosdent.2025.09.022
Giovanna Bueno de Souza, Hamile Emanuella do Carmo Viotto, João Fernando Carrijo Queiroz, Larianne de Sousa Moisés, Sabrina Romão Gonçalves Coelho, Danny Omar Mendoza Marin, Ana Carolina Pero
{"title":"Evaluation of methods for removing stains from a 3D printed resin for denture teeth.","authors":"Giovanna Bueno de Souza, Hamile Emanuella do Carmo Viotto, João Fernando Carrijo Queiroz, Larianne de Sousa Moisés, Sabrina Romão Gonçalves Coelho, Danny Omar Mendoza Marin, Ana Carolina Pero","doi":"10.1016/j.prosdent.2025.09.022","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.022","url":null,"abstract":"<p><strong>Statement of problem: </strong>An efficient protocol for removing stains from 3-dimensionally (3D) printed artificial teeth must also preserve their surface properties.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to evaluate methods of removing stains from a 3D printed resin (Bio Crown) for artificial teeth submitted to immersion in coffee by using spectrophotometric analysis (CIEDE2000) and analyzing surface roughness with a profilometer and topography with a scanning electron microscope (SEM).</p><p><strong>Material and methods: </strong>Disks (Ø10×1.2 mm) were 3D printed and stained in instant coffee simulating 1 year of consumption. Color data (L*, a*, b*) and roughness (Ra, µm) were obtained at T0 (baseline, before staining), T1 (after staining), and T2 (after each stain removal protocol, n=12). The stain removal groups used sodium perborate (SP), 0.25% sodium hypochlorite (SH), conventional polishing with brush and pumice stone + felt wheels and universal paste (CP), and polishing with 3-abrasive tip kit (AP); the control was storage in distilled water (DW). Mixed 2-way ANOVA followed by the Bonferroni test was performed to statistically analyzing data with α=.05.</p><p><strong>Results: </strong>Roughness increased in all groups between T1 and T2 (P<.05), except for SH. The AP (0.64 ±0.12 µm) and CP (0.52 ±0.17 µm) groups showed similar roughness and higher roughness compared with the other groups (SP 0.40 ±0.22 µm, SH 0.31 ±0.12 µm, and DW 0.34 ±0.11 µm). A significant color difference (ΔE<sub>00</sub>) was observed between T0 (1.03 ±0.49) and T1 (1.36 ±0.77), (P<.001), and the color remained statistically similar between T1 and T2 (1.48 ±1.02).</p><p><strong>Conclusions: </strong>No method was effective in removing coffee stains. The polishing methods resulted in greater roughness, followed by sodium perborate. The only protocol that did not increase the roughness of the 3D printed resin for artificial teeth was 0.25% sodium hypochlorite. Longer application periods of the staining removal protocols are suggested for future studies.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228496","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
Phase transformation and biaxial flexural strength of additively and subtractively manufactured zirconia: Effect of grinding and regeneration firing. 加减法氧化锆的相变和双轴抗折强度:研磨和再生烧成的影响。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-03 DOI: 10.1016/j.prosdent.2025.09.019
Selin Çelik Öge, Orhun Ekren, Gülce Çakmak, Burak Yılmaz
{"title":"Phase transformation and biaxial flexural strength of additively and subtractively manufactured zirconia: Effect of grinding and regeneration firing.","authors":"Selin Çelik Öge, Orhun Ekren, Gülce Çakmak, Burak Yılmaz","doi":"10.1016/j.prosdent.2025.09.019","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.019","url":null,"abstract":"<p><strong>Statement of problem: </strong>Grinding is often required for the clinical adjustments of zirconia restorations; nevertheless, the effects of following regeneration firing processes on additively manufactured zirconia are still unclear.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to evaluate the effects of grinding and regeneration firing (RF) on the phase transformation and biaxial flexural strength (BFS) of additively or subtractively manufactured 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP).</p><p><strong>Material and methods: </strong>A total of 108 disk-shaped (Ø15×1.5 mm) 3Y-TZP specimens (n=54) were fabricated using either subtractive manufacturing (SM) or additive manufacturing (AM) techniques. Grinding was performed using a 150-μm-grit diamond rotary instrument with a high-speed handpiece, and RF was carried out at 1000 °C for 15 minutes in a sintering furnace. The crystalline phases were analyzed using X-ray powder diffraction (XRD). All specimens were loaded until fracture using a universal testing machine for a biaxial flexural strength test at a crosshead speed of 1 mm/minute. Microstructure and fracture surfaces were examined using scanning electron microscopy. BFS data were statistically analyzed using 1-way ANOVA, followed by the Tukey post hoc test for pairwise comparisons. (α=.05). The Weibull modulus and characteristic strength were calculated to assess the reliability of strength data.</p><p><strong>Results: </strong>Tetragonal-to-monoclinic phase transformation was detected in ground specimens of both AM and SM groups, whereas only the tetragonal phase was observed in their corresponding RF groups. The highest BFS (1427.2 MPa) was observed in ground AM specimens (P<.001). Grinding and RF did not significantly affect the BFS of SM zirconia (P=.927 and P=.999, respectively) but significantly increased the BFS of AM zirconia (P<.001). RF increased the Weibull modulus in both AM (from m=6.98 to 12.25) and SM (from m=5.91 to 8.35) zirconia.</p><p><strong>Conclusions: </strong>The implementation of RF after grinding is crucial, particularly for AM zirconia, to improve mechanical strength and structural reliability.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228489","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
Color stability, surface topography, and phase transformation of zirconia fabricated by additive and subtractive manufacturing after exposure to different artificial saliva formulations. 添加法和减法制备的氧化锆暴露于不同的人工唾液配方后的颜色稳定性、表面形貌和相变
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-01 DOI: 10.1016/j.prosdent.2025.09.021
Rafat Sasany, Sultan Merve Uçar, Miguel Gómez-Polo, Marta Revilla-León, Seyed Ali Mosaddad
{"title":"Color stability, surface topography, and phase transformation of zirconia fabricated by additive and subtractive manufacturing after exposure to different artificial saliva formulations.","authors":"Rafat Sasany, Sultan Merve Uçar, Miguel Gómez-Polo, Marta Revilla-León, Seyed Ali Mosaddad","doi":"10.1016/j.prosdent.2025.09.021","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.021","url":null,"abstract":"<p><strong>Statement of problem: </strong>How variations in salivary chemistry affect the long-term stability of additive manufacturing (AM) and subtractive manufacturing (SM) zirconia is unclear.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to evaluate the effects of different salivary environments on the color stability, surface roughness, and phase transformation of zirconia fabricated by AM and SM.</p><p><strong>Material and methods: </strong>Disk-shaped specimens (n=160) were fabricated from 4 zirconia materials: 2 AM-AMZ-LI (LithaCon 3Y, produced via lithography-based ceramic manufacturing [LCM]) and AMZ-IN (INNI Cera, produced via digital light processing [DLP])-and 2 SM-SMZ-ST (monolayer Katana ST) and SMZ-ML (multilayer Katana STML). Each material group was divided into 4 subgroups (n=10) based on the aging medium: distilled water (DW), neutral artificial saliva (AS7), acidic artificial saliva (AS4), or enzymatic artificial saliva containing α-amylase (ASE7). Surface roughness (Ra), color change (ΔE₀₀), and phase transformation were assessed. Data were analyzed using a 3-way repeated measures ANOVA with Tukey HSD or Bonferroni post hoc tests (α=.05).</p><p><strong>Results: </strong>Ra was significantly affected by material type, aging condition, and fabrication method (all P≤.001), with AMZ-LI and SMZ-ML maintaining the lowest Ra values (<0.60 µm) after aging. Color stability was similarly influenced (P<.001), with all groups remaining within clinically acceptable limits (ΔE₀₀≤1.8). AMZ-LI (0.60 ±0.08 in DW; max=1.26) and SMZ-ML (0.84 ±0.05 in DW; max=1.20) showed the highest color stability, while SMZ-ST and AMZ-IN had higher ΔE₀₀ in acidic and enzymatic media. Phase transformation was more pronounced in SM groups (P<.05), with SMZ-ML showing the greatest monoclinic increase, and AMZ-LI exhibiting the highest phase stability.</p><p><strong>Conclusions: </strong>Both manufacturing techniques and aging environments significantly affected zirconia's surface, optical, and phase properties. AMZ-LI showed superior resistance to surface and phase degradation, while AMZ-LI and SMZ-ML exhibited the highest optical stability.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212939","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 scan aid surface color on accuracy of calibrated intraoral scan protocol in complete arch implant digital scans. 全弓种植体数字扫描中助扫面颜色对校正口内扫描方案准确性的影响。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-01 DOI: 10.1016/j.prosdent.2025.09.006
Zhaozhao Chen, Jiayi Yu, Jiayi Lu, Hom-Lay Wang, Junying Li
{"title":"Influence of scan aid surface color on accuracy of calibrated intraoral scan protocol in complete arch implant digital scans.","authors":"Zhaozhao Chen, Jiayi Yu, Jiayi Lu, Hom-Lay Wang, Junying Li","doi":"10.1016/j.prosdent.2025.09.006","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.006","url":null,"abstract":"<p><strong>Statement of problem: </strong>Intraoral scans for complete arch implant-supported prostheses have been considered to lack sufficient accuracy for clinical use. Although various scan aids and techniques have been proposed, their effectiveness is still unclear. However, a calibrated intraoral scanning protocol (CISP) has shown accuracy comparable with that of the conventional splinted open-tray method.</p><p><strong>Purpose: </strong>The purpose of this in vitro study was to evaluate the impact of scan aid color on the accuracy of the CISP for complete arch implant-supported prostheses.</p><p><strong>Material and methods: </strong>A maxillary edentulous model with 6 implants and multi-unit abutments was scanned using 3 approaches: intraoral scan (IOS), intraoral scan with scan aid (IOS-SA), and CISP. Scan aids in 3 colors (gray, tan, and white) were applied in the IOS-SA and corresponding CISP groups. In the CISP group, the scans were further calibrated with a desktop scan of the scan aid. Each approach was repeated 10 times, and a desktop scan served as the reference model. The scans were aligned with the reference model using 2 approaches: one assessed the overall fit by aligning all scan bodies, and the other simulated the Sheffield fit test by aligning only the first and second scan bodies (SB1 and SB2) to evaluate passive fit in multiple implant-supported prostheses. Linear deviations from the reference model (trueness) and deviations within each group (precision) were analyzed via Python scripts. The accuracy (trueness and precision) of different approaches was compared using a linear mixed model (α=.05), taking the correlation of 6 SBs within a scan and the correlation between IOS-SA and CISP into account (random effect).</p><p><strong>Results: </strong>When aligned by all scan bodies, the CISP group exhibited superior trueness and precision compared with the IOS and IOS-SA groups. Furthermore, in the virtual Sheffield fit test, the CISP group achieved the highest levels of precision at SB3 and onward among groups. The CISP using tan-colored scan aids showed the highest trueness and precision among all colors, especially at SB5 and SB6.</p><p><strong>Conclusions: </strong>The calibrated protocol led to improved trueness and precision over IOS alone and IOS-SA, with the tan-colored CISP providing the best outcomes in the virtual Sheffield fit test.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212958","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 "Dimensional stability and fit of additively manufactured removable dies in dental cast resins with different chemical compositions". 致编辑关于“不同化学成分的牙科铸造树脂中添加剂制造的可移动模具的尺寸稳定性和配合”的信。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-01 DOI: 10.1016/j.prosdent.2025.07.024
Yishu Xia, Jianzhi Chen
{"title":"Letter to the Editor regarding \"Dimensional stability and fit of additively manufactured removable dies in dental cast resins with different chemical compositions\".","authors":"Yishu Xia, Jianzhi Chen","doi":"10.1016/j.prosdent.2025.07.024","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.07.024","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212916","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
Response to Letter to the Editor regarding "Acceptability and deviation of finish line detection and restoration contour design in single-unit crown: Comparative evaluation between 2 AI-based CAD software programs and dental laboratory technicians." 关于“单单元冠终点线检测和修复轮廓设计的可接受性和偏差:两种基于人工智能的CAD软件程序和牙科实验室技术人员的比较评价”致编辑的回复。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-01 DOI: 10.1016/j.prosdent.2025.09.001
Kedith Sawangsri, Mariam Bekkali, Nathan Lutz, Safa Alrashed, Yuan-Lynn Hsieh, Yi-Cheng Lai, Catherine Arreaza, Leonardo M Nassani, Dr Hanin S Hammoudeh
{"title":"Response to Letter to the Editor regarding \"Acceptability and deviation of finish line detection and restoration contour design in single-unit crown: Comparative evaluation between 2 AI-based CAD software programs and dental laboratory technicians.\"<sup />","authors":"Kedith Sawangsri, Mariam Bekkali, Nathan Lutz, Safa Alrashed, Yuan-Lynn Hsieh, Yi-Cheng Lai, Catherine Arreaza, Leonardo M Nassani, Dr Hanin S Hammoudeh","doi":"10.1016/j.prosdent.2025.09.001","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.001","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212963","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
Ultrasonographic assessment of the effects of unilateral mastication on the temporal and masseter muscles. 单侧咀嚼对颞肌和咬肌影响的超声评价。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-10-01 DOI: 10.1016/j.prosdent.2025.09.024
Mehmet Emin Dogan, Nurbanu Şahin
{"title":"Ultrasonographic assessment of the effects of unilateral mastication on the temporal and masseter muscles.","authors":"Mehmet Emin Dogan, Nurbanu Şahin","doi":"10.1016/j.prosdent.2025.09.024","DOIUrl":"https://doi.org/10.1016/j.prosdent.2025.09.024","url":null,"abstract":"<p><strong>Statement of problem: </strong>Unilateral mastication is a complex problem affecting the masticatory muscles. Quantitative evaluation of the contraction efficiency of the muscles to determine what effect unilateral mastication has on them is lacking.</p><p><strong>Purpose: </strong>The purpose of this clinical study was to investigate the differences in masseter and anterior temporal muscle thickness and elastography values between the masticatory and nonmasticatory sides in patients with unilateral mastication habits using ultrasonographic evaluation.</p><p><strong>Material and methods: </strong>Twenty-five individuals with unilateral mastication habits were included in the study. The anterior temporal and masseter muscles of the participants were evaluated using ultrasonography at rest and during maximal voluntary contraction. Muscle thickness measurements were performed in the transverse plane, and shear wave elastography values were recorded in kilopascals. Differences between the 2 groups were determined by analyzing the obtained data with the paired samples t test (α=.05).</p><p><strong>Results: </strong>The mean thicknesses of the masseter muscle on the masticatory side at rest and during maximal contraction were 12.2 ±1.9 mm and 14.6 ±2.0 mm, respectively, whereas on the nonmasticatory side, these values were 11.3 ±2.0 mm and 13.6 ±2.2 mm (P<.05). Similarly, the thicknesses of the anterior temporal muscle at rest and during maximum voluntary contraction also showed significant differences between the masticatory and nonmasticatory sides (P<.05). Elastography measurements revealed significantly higher elasticity values on the masticatory side.</p><p><strong>Conclusions: </strong>In individuals with unilateral mastication, both the masseter and anterior temporal muscles on the masticatory side had significantly higher thickness and elastography values. These ultrasonographic evaluations can help understand the adaptive mechanisms of the masticatory muscles.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145212953","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
Response to Letter to the Editor regarding, "Can ChatGPT be trusted as a resource for a scholarly article on treatment planning implant-supported prostheses?" by Sadowsky. 回复Sadowsky关于“ChatGPT是否可以作为一篇关于治疗计划种植义肢的学术文章的资源?”的致编辑的信。
IF 4.8 2区 医学
Journal of Prosthetic Dentistry Pub Date : 2025-09-29 DOI: 10.1016/j.prosdent.2025.09.002
Steven J Sadowsky
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