Journal of Advanced Prosthodontics最新文献

Effect of thermomechanical aging on fracture strength of anterior crowns fabricated with different CAD-CAM materials. 热机械老化对不同CAD-CAM材料制备前冠断裂强度的影响。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI: 10.4047/jap.2025.17.3.158

Mine Helvacıoğlu Özkardeş, Hatice Banu Özel, Erkut Kahramanoğlu

{"title":"Effect of thermomechanical aging on fracture strength of anterior crowns fabricated with different CAD-CAM materials.","authors":"Mine Helvacıoğlu Özkardeş, Hatice Banu Özel, Erkut Kahramanoğlu","doi":"10.4047/jap.2025.17.3.158","DOIUrl":"10.4047/jap.2025.17.3.158","url":null,"abstract":"Purpose: The purpose of this study was to assess the effect of thermomechanical aging on fracture strength of CAD/CAM (computer aided design and computer aided manufacturing) anterior crowns.Materials and methods: A resin maxillary central incisor was prepared and 96 epoxy resin replicas were obtained. Anterior crowns were produced and divided into four groups: IPS (IPS e.max CAD, 1.5 mmthickness), CD (Celtra Duo, 1.5 mm thickness), GC (GC Initial UHT, 1.5 mm thickness) and GC1 (GC Initial UHT, 1 mm thickness). Twelve crowns of each group were subjected to a chewing simulator for 240,000 cycles, and the other 12 crowns were regarded as control. Fracture resistance of aged and non-aged crowns were tested using a universal testing machine (Shimadzu AGS-X). One-way ANOVA, Tukey post hoc and independent sample t-tests were used to analyze the data and a P value < .05 was considered significant.Results: IPS crowns without aging had the highest (2094.3 ± 399.31 N), and the GC1 crowns after aging had the lowest (1216.99 ± 302.96 N) fracture strength values. The difference of fracture strength among the same thickness samples without aging was not statistically significant (P > .05). The fracture strength of the GC1 group was significantly lower than those of the other groups (P < .05). After aging; GC group showed significantly higher fracture strength than the IPS and GC1 groups. The CD group's fracture strength was significantly higher than the GC1 group (P < .05). Aging significantly decreased the fracture strength of the IPS group (P < .05).Conclusion: All monolithic crowns employed in this research proved to be resistant to physiological chewing forces in the anterior region.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 3","pages":"158-168"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270717/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Macrophage-associated biocompatibility of titanium revealed by analyzing foreign body reaction at bone-implant interface. 通过分析骨-种植体界面异物反应揭示钛的巨噬细胞相关生物相容性。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI: 10.4047/jap.2025.17.3.169

Hye Jeong Lee, Jeong Min Kwak, Chae Ryeong Cha, Sharanbir Kaur Sidhu, Satoshi Imazato, Joo-Young Park, In-Sung Luke Yeo

{"title":"Macrophage-associated biocompatibility of titanium revealed by analyzing foreign body reaction at bone-implant interface.","authors":"Hye Jeong Lee, Jeong Min Kwak, Chae Ryeong Cha, Sharanbir Kaur Sidhu, Satoshi Imazato, Joo-Young Park, In-Sung Luke Yeo","doi":"10.4047/jap.2025.17.3.169","DOIUrl":"10.4047/jap.2025.17.3.169","url":null,"abstract":"Purpose: Titanium implants are widely used to replace pathological joints, bones, and teeth, with successful engraftment requiring osteoblast attachment to the metal surface for bone regeneration. However, the immune response at the bone-implant interface remains unclear, and few studies have examined why titanium elicits a reduced foreign-body reaction (FBR) compared to other metals. This study aimed to elucidate the mechanism underlying titanium biocompatibility by characterizing the immune response at the bone-implant interface in a rat model.Materials and methods: Copper, machined titanium, and sandblasted/acid-etched titanium rods were fabricated for implantation into rat tibiae. Topographical and chemical features of each rod surface were evaluated. Rods were inserted into rat tibiae, and immune cell subtypes were analyzed by flow cytometry, histomorphometry, and immunohistochemistry. Statistical analyses were performed at a significance level of 0.05.Results: Flow cytometry of bone marrow cells collected on Days 1, 7, and 35 post-implantation revealed recruitment of macrophages and neutrophils at all implant sites. Histological analysis confirmed immune cell infiltration at the metal-bone interface, with a pronounced FBR surrounding copper rods. Immunohistochemistry demonstrated an abundance of osteoclast-like M1 macrophages at the copper-implant interface. In contrast, M1 macrophages were absent near titanium implants, where reparative M2 macrophages were present.Conclusion: The recruitment of M1 macrophages at the copper implantation site, but not at the titanium implant, indicates the FBR to copper and underlies the biocompatibility of titanium. Titanium may affect the differentiation of intrabony macrophages to increase its biocompatibility.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 3","pages":"169-184"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270715/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of scan body material, length and top design on digital implant impression accuracy and usability: an in vitro study. 扫描体材料、长度和顶部设计对数字植入物印模精度和可用性的影响：一项体外研究。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI: 10.4047/jap.2025.17.3.125

Julian Hessel Baranowski, Victoria Franke Stenport, Michael Braian, Ann Wennerberg

{"title":"Effects of scan body material, length and top design on digital implant impression accuracy and usability: an in vitro study.","authors":"Julian Hessel Baranowski, Victoria Franke Stenport, Michael Braian, Ann Wennerberg","doi":"10.4047/jap.2025.17.3.125","DOIUrl":"10.4047/jap.2025.17.3.125","url":null,"abstract":"Purpose: This study evaluated how implant scan body (ISB) design affects trueness and operator convenience of digital implant impressions. The null hypothesis stated no significant differences in trueness or usability between ISB designs.Materials and methods: A cast metal model with nine implants and silicone mucosal masks (1 mm and 3 mm thickness) were used. Seven ISB prototypes were developed by modifying a commercial ISB (ELOS Accurate IO2A-B, ELOS Medtech) in four aspects: length (30% shorter and 50% longer), material (polyetheretherketone (PEEK) or titanium), surface reflectance (polished or aluminium oxide-blasted titanium), and top surface (concave top and screw holes enlarged by 100% and 200%). Each prototype was scanned ten times using an intraoral scanner (NeoScan1000, Neoss), with a desktop scanner (E3, 3Shape) providing reference scans. Deviations in depth, angulation, and rotation were analyzed in CAD software (GOM Inspect, Zeiss). Statistical analysis included the Welch test (P < .05) and Games-Howell post hoc test (P < .007).Results: Material affected depth accuracy; blasted titanium (89 ± 86 µm) and polished titanium (80 ± 72 µm) outperformed PEEK (149 ± 131 µm). Shorter ISBs showed greater angular deviations (0.64 ± 0.70°) compared to control (0.31 ± 0.21°). Rotational deviations were not significant. Scanning times increased for reflective, longer ISBs with reduced top areas, while shorter ISBs improved usability.Conclusion: ISB design influences digital impression accuracy. Titanium ISBs with reduced reflectivity improve trueness, and larger screw holes enhance usability. Shorter ISBs reduce scanning time but compromise angular trueness. Stitching errors remain the primary source of depth inaccuracies.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 3","pages":"125-136"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Digital versus conventional surveying for partially edentulous arches: an evaluation of accuracy and time efficiency. 数字测量与传统测量的部分无牙弓：准确性和时间效率的评估。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI: 10.4047/jap.2025.17.3.115

Míria Rafaelli Souza Curinga, Anne Kaline Claudino Ribeiro, Ana Larisse Carneiro Pereira, Rodrigo Falcão Carvalho Porto de Freitas, Luana Maria Martins de Aquino, Laércio Almeida de Melo, Adriana da Fonte Porto Carreiro

{"title":"Digital versus conventional surveying for partially edentulous arches: an evaluation of accuracy and time efficiency.","authors":"Míria Rafaelli Souza Curinga, Anne Kaline Claudino Ribeiro, Ana Larisse Carneiro Pereira, Rodrigo Falcão Carvalho Porto de Freitas, Luana Maria Martins de Aquino, Laércio Almeida de Melo, Adriana da Fonte Porto Carreiro","doi":"10.4047/jap.2025.17.3.115","DOIUrl":"10.4047/jap.2025.17.3.115","url":null,"abstract":"Purpose: This diagnostic study evaluated the accuracy and time efficiency of digital surveying compared to the conventional method for partially edentulous arches.Materials and methods: Thirty Standard Tesselation Language (STL) files of partially edentulous arches were analyzed. Conventional surveying was performed on 3D-printed diagnostic casts, while digital surveying was conducted using CAD software (Dental Wings Inc., Straumann, Montreal, Canada). The path of insertion and removal, and determining factors (guiding planes, undercut areas, and reciprocation) were assessed. Sensitivity and specificity tests were used to measure accuracy. Sensitivity was defined as the proportion of true positives identified by both techniques, while specificity was measured as a percentage of true negatives compared with the conventional method. Accuracy was assessed as the ability to correctly differentiate true positives and negatives. The paired t-test (95% CI) compared the mean working time between the techniques.Results: Agreement on reciprocation was 2.91 times higher in regions with a greater number of edentulous areas compared to those with fewer edentulous areas (P = .025). The agreement of guiding planes in tooth-supported abutments was 2.59 times greater than in distal extension cases (P = .031). Accuracy ranged from 0.73 to 0.85. The working time was significantly longer for the digital technique (P = .030).Conclusion: Both techniques demonstrated high levels of agreement, especially for reciprocation and guiding planes. The digital method exhibited accuracy ranging from good to very good; however, it required a longer working time compared to the conventional approach.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 3","pages":"115-124"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270718/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Internal and marginal adaptation of 3D printed interim fixed partial dentures with different layer thicknesses. 不同层厚3D打印临时固定局部义齿的内、边缘自适应。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI: 10.4047/jap.2025.17.3.137

Fateme Ghorbanpour Arani, Mahya Hasanzade, Negin Aminianpour, Azam Sadat Mostafavi

{"title":"Internal and marginal adaptation of 3D printed interim fixed partial dentures with different layer thicknesses.","authors":"Fateme Ghorbanpour Arani, Mahya Hasanzade, Negin Aminianpour, Azam Sadat Mostafavi","doi":"10.4047/jap.2025.17.3.137","DOIUrl":"10.4047/jap.2025.17.3.137","url":null,"abstract":"Purpose: The aim of this study was to compare the marginal and internal adaptation of polymethyl methacrylate interim fixed partial denture (FPD) restorations fabricated by three-dimensional (3D) printing with different layer thicknesses.Materials and methods: A standard typodont was scanned by a laboratory scanner. The maxillary left first premolar and first molar teeth received an all-ceramic full-coverage crown preparation, and the second premolar was removed to create a pontic space. The prepared teeth were then scanned, and metal dies were fabricated by a milling machine. Restorations were designed and fabricated in 3 groups (n = 12 in inch) with 25, 50 and 100 µm layer thicknesses. The marginal and internal gaps were measured by the replica technique. Data were analyzed by one-way ANOVA (α = 0.05).Results: The mean gap size (MGS) in the cervical area of premolar restorations was significantly higher in 100 µm than in 50 and 25 µm thicknesses (P < .05). The MGS in the marginal area of premolar restorations was significantly higher in 100 µm thickness than in 50 µm thickness (P < .05), with no statistically significant difference with 25 µm thickness (P > .05). The MGS at the occlusal and cervical areas of the molar restorations was significantly higher in 100 µm thickness than in 50 µm thickness (P < .05), with no statistically significant difference with 25 µm thickness (P > .05).Conclusion: Different thicknesses of additive layers in 3D printing affected the marginal and internal gaps. The smallest gap size was recorded in 50 µm layer thickness.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 3","pages":"137-145"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fracture strength and failure mode of implant-supported provisional resin composite crowns on hydroxyapatite-coated sulfonated PEEK abutments following thermomechanical loading. 羟基磷灰石包覆磺化PEEK基牙种植体支撑临时树脂复合冠的断裂强度及破坏模式

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-06-01 Epub Date: 2025-06-25 DOI: 10.4047/jap.2025.17.3.146

Thae Phyu Htay, Putsadeeporn Thammajaruk, Chaimongkon Peampring

{"title":"Fracture strength and failure mode of implant-supported provisional resin composite crowns on hydroxyapatite-coated sulfonated PEEK abutments following thermomechanical loading.","authors":"Thae Phyu Htay, Putsadeeporn Thammajaruk, Chaimongkon Peampring","doi":"10.4047/jap.2025.17.3.146","DOIUrl":"10.4047/jap.2025.17.3.146","url":null,"abstract":"Purpose: This study evaluates the fracture strength and failure mode of implant-supported provisional resin composite crowns fabricated over hydroxyapatite-coated sulfonated polyetheretherketone (PEEK) and sandblasted PEEK abutments after thermomechanical loading.Materials and methods: Thirty customized PEEK provisional abutments were surface-treated by (1) sandblasting with 50 µm aluminum oxide (n = 15) (Sa) and (2) HA coating after sulfonation (n = 15) (HA). These abutments were veneered to create crowns for the mandibular right first permanent molar using bulk-fill resin composites after applying a thin layer of universal adhesive. All specimens were stored in distilled water at 37℃ for 24 hours, underwent thermocycling for 1000 cycles at 5℃ and 55℃ (30 s dwell time and 10 s transfer time), and were subjected to mechanical cyclic loading for 120,000 cycles with 50 N using a chewing simulator at room temperature. Fracture strength was evaluated with a universal testing machine, and failure mode was analyzed using a 3D surface profilometer. The Mann-Whitney U test was used for statistical analysis (α = 0.05).Results: The HA group exhibited significantly higher fracture strength (1469.71 N ± 200.36 N) than the Sa group (1152.36 N ± 180.89 N). Most failures were adhesive and included irreparable fractures of the crown.Conclusion: HA coating after sulfonation effectively enhances the fatigue strength of PEEK abutments veneered with resin composites for implant-supported provisional crowns.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 3","pages":"146-157"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12270719/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144676466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fracture resistance of fixed partial dentures: the influence of restoration geometry and material in additive manufacturing. 固定局部义齿的抗断裂性：增材制造中修复几何和材料的影响。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-04-01 Epub Date: 2025-04-25 DOI: 10.4047/jap.2025.17.2.92

Ezgi Kavvas-Celik, Zekeriya Yasar Comert, Dilara Seyma Alpkilic-Issever, Deger Ongul, Ergun Kelesoglu, Sabire Isler-Deger

{"title":"Fracture resistance of fixed partial dentures: the influence of restoration geometry and material in additive manufacturing.","authors":"Ezgi Kavvas-Celik, Zekeriya Yasar Comert, Dilara Seyma Alpkilic-Issever, Deger Ongul, Ergun Kelesoglu, Sabire Isler-Deger","doi":"10.4047/jap.2025.17.2.92","DOIUrl":"https://doi.org/10.4047/jap.2025.17.2.92","url":null,"abstract":"Purpose: The location of the edentulous area in the dental arch can influence the design of the bridge prosthesis in the surrounding region and the forces it will encounter. This study assessed the fracture strength of restorations with various geometric designs produced using different additive and subtractive manufacturing methods.Materials and methods: Co-Cr metal and zirconia fixed partial denture (FPD) frameworks were designed in both linear and curved geometries. The Co-Cr metal frameworks were produced through casting (C) and laser sintering (L), while the zirconia (Z) frameworks were obtained through milling (n = 10). After veneering the frameworks, a four-point bending test was conducted on the specimens to assess their fracture strength. All obtained values were statistically analyzed (P < .05).Results: In both linear and curved groups, Z group showed the lowest fracture resistance values followed by C and L groups and the differences between the groups were found statistically significant (P < .05). In L group, curved FPDs showed statistically significantly higher fracture resistance values than linear FPDs (P < .05). In both Z and C groups, curved FPDs showed statistically significantly lower fracture resistance values than linear FPDs (P < .05).Conclusion: The geometric configuration of the restoration and manufacturing technique affects the fracture resistance of different framework materials in FPDs.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 2","pages":"92-100"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059370/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-perceived dental esthetics and the relationship to maxillary anterior tooth proportions among dental students. 牙科学生自我感知的牙齿美学与上颌前牙比例的关系。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-04-01 Epub Date: 2025-04-25 DOI: 10.4047/jap.2025.17.2.83

Rajasegaran Sharmila, Selvanathan Jayaletchimi, In Meei Tew, Yew Hin Beh

{"title":"Self-perceived dental esthetics and the relationship to maxillary anterior tooth proportions among dental students.","authors":"Rajasegaran Sharmila, Selvanathan Jayaletchimi, In Meei Tew, Yew Hin Beh","doi":"10.4047/jap.2025.17.2.83","DOIUrl":"https://doi.org/10.4047/jap.2025.17.2.83","url":null,"abstract":"Purpose: This study aimed to analyze the relationship between self-perceived dental esthetics and the selected esthetic mathematical proportions.Materials and methods: Descriptive cross-sectional study was conducted among 48 dental students who fit into the inclusion criteria. The subjects rated their self-perceived dental esthetics based on the given Likert scale. Standardized portrait photographs of each subject were taken and the mesiodistal measurements of the maxillary anterior teeth were measured using a graphic editing software. The golden proportion, golden percentage and RED proportion in maxillary anterior teeth were then calculated.Results: Most subjects were pleased with the size, form, and color of their maxillary anterior teeth. Only 2.1% of the maxillary canines and 10.4% of the left maxillary lateral incisors complied with the golden proportion. The maxillary lateral incisors demonstrated its occurrence to golden percentage. For the RED proportion, 29.2% of the left maxillary teeth and 16.7% of the contralateral teeth complied with the proportion. Self-perceived dental esthetics and the occurrence these mathematical proportions have no association.Conclusion: Within the limitations of the study, it can be concluded that most subjects were satisfied with their self-perceived dental esthetics. Only a small percentage of the subjects having their natural dentition coincide with the golden proportion, golden percentage and RED proportion with a higher percentage occurring on the RED proportion. Hence, the mathematical proportions do not represent the naturally occurring dentition. These mathematical proportions can serve as a guide and the perceived teeth width can be customized accordingly.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 2","pages":"83-91"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144040328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of fixed dental prostheses digitally fabricated using various scan bodies: a clinical study. 不同扫描体数字化制作固定义齿的临床研究。

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-04-01 Epub Date: 2025-04-25 DOI: 10.4047/jap.2025.17.2.70

Fatmanur Demir Boz, Kivanc Akca

{"title":"Comparison of fixed dental prostheses digitally fabricated using various scan bodies: a clinical study.","authors":"Fatmanur Demir Boz, Kivanc Akca","doi":"10.4047/jap.2025.17.2.70","DOIUrl":"https://doi.org/10.4047/jap.2025.17.2.70","url":null,"abstract":"Purpose: Digitalization in dentistry has increased interest in the use of intraoral scanners (IOs) in clinical practice. However, knowledge of implant digitalization is primarily limited to in vitro studies. This study aimed to compare implant-supported fixed dental prostheses (FDP) fabricated following complete digital workflow using various implant scan bodies (SB) in treatment of short-span partial edentulism.Materials and methods: Patients with 25 short-span posterior edentulous sites, each receiving two implants to support a fixed restoration, were included. Digital implant records were made consecutively with original, non-original, and generic SBs using IOs. A practitioner implemented a two-stage full-arch scanning protocol, beginning with continuous arch scanning, followed by individual scanning of SBs. For clinical evaluation, each site received screw-retained full-contour restorations to qualify the connection fit to the implants and contacts to the adjacent and antagonist teeth. For analytical comparison, implant axes calculated from SB scans were quantified using reverse engineering software to compare the differences three-dimensionally. Restorative outcomes and implant axes records were statistically analyzed using the chi-square test and generalized estimating equations, respectively.Results: Clinical delivery conditions did not differ significantly among the three intraoral SBs (P > .05). The analytical implant-position calculations for non-original and generic SBs did not present significant differences compared to original SBs (P > .05).Conclusion: SBs with different hardware and software characteristics for an implant system are clinically acceptable for fabricating screw-retained short-span implant-supported FDPs using a complete digital workflow.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 2","pages":"70-82"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059372/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144050308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of dental implant surface treated with sandblasting large grit acid-etching and femtosecond laser on implant stability, marginal bone volume, and histological results in a rabbit model. 喷砂大粒度酸蚀和飞秒激光处理对兔模型种植体稳定性、边缘骨体积和组织学结果的影响

IF 2.7 3区医学

Journal of Advanced Prosthodontics Pub Date : 2025-04-01 Epub Date: 2025-04-25 DOI: 10.4047/jap.2025.17.2.101

Young-Tak Son, KeunBaDa Son, Hoseong Cho, Jae-Mok Lee, Sm Abu Saleah, JunHo Hwang, JongHoon Lee, HyunDeok Kim, Myoung-Uk Jin, Jeehyun Kim, Mansik Jeon, Kyu-Bok Lee

{"title":"Effects of dental implant surface treated with sandblasting large grit acid-etching and femtosecond laser on implant stability, marginal bone volume, and histological results in a rabbit model.","authors":"Young-Tak Son, KeunBaDa Son, Hoseong Cho, Jae-Mok Lee, Sm Abu Saleah, JunHo Hwang, JongHoon Lee, HyunDeok Kim, Myoung-Uk Jin, Jeehyun Kim, Mansik Jeon, Kyu-Bok Lee","doi":"10.4047/jap.2025.17.2.101","DOIUrl":"https://doi.org/10.4047/jap.2025.17.2.101","url":null,"abstract":"Purpose: The purpose of this study was to compare the surface characteristics and healing patterns after implantation of implants treated with SLA and those treated with both SLA and femtosecond laser.Materials and methods: A total of 10 male New Zealand white rabbits were used to compare recovery levels between implants treated with SLA (SLA group) and those treated with both SLA and femtosecond laser (SF group). The implants' surface characteristics were determined through topographic evaluation, element analysis, surface roughness, and wettability evaluation. In total, 4 implants were placed in each rabbit (2 in each tibia), with 20 implants per treatment group. Using the implant stability quotient (ISQ), marginal bone volume, and histological analysis (bone-to-implant contact (BIC), bone volume/tissue volume (BV/TV)), and post implantation outcomes were assessed. Outcome data were analyzed using independent t-tests, Mann-Whitney U tests, Wilcoxon signed-rank tests, and one-way ANOVA (α = 0.05).Results: No significant differences were noted between SLA and SF groups in terms of ISQ, marginal bone volume, BIC, and BV/TV (P > .05). However, significant differences in ISQ were observed within each group over time (P < .05). Furthermore, significant differences were noted in the marginal bone volume of the SF group (P < .05) and the BV/TV of the SLA group between weeks 4 and 6 (P < .05).Conclusion: Surface treatment via SLA and femtosecond laser is feasible compared with SLA treatment alone in terms of ISQ, marginal bone volume, BIC, and BV/TV. However, further clinical research is warranted.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"17 2","pages":"101-114"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059371/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144043097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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