Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry最新文献

{"title":"Comprehensive oral rehabilitation of worn dentition using a facially driven digital workflow and minimally invasive adhesive restorations.","authors":"Ahmed Adel Hegazi, Amr Eletreby, Ahmed Aboelfadl, Doaa Taha, Fatma Adel Mohamed Ahmed","doi":"10.1111/jopr.70210","DOIUrl":"https://doi.org/10.1111/jopr.70210","url":null,"abstract":"<p><p>A 52-year-old male patient presented with chronic posterior maxillary pain, multiple dental wear with mild sensitivity, compromised anterior esthetics, and impaired function correlated with failed posterior restorations and occlusal disharmonies. A comprehensive rehabilitation protocol was implemented using facial and intraoral scanning, digital smile design, and staged prosthetic procedures, including endodontic retreatment, gingivectomy, and restoration delivery at an increased vertical dimension of occlusion (VDO). The final phase involved digital occlusal analysis to assess and refine inter-arch contacts. Within the limitations of a single case report, the outcome demonstrated functional and esthetic improvement, with establishment of a stable, harmonious occlusion at the therapeutic VDO. This case illustrates a digital, interdisciplinary approach that may be useful in managing similar complex rehabilitative scenarios.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148680785","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}

{"title":"Private practice of prosthodontists in the United States: Results from the 2024 survey of prosthodontists and trends since 2008.","authors":"Tintu Chandy, Douglas Benting, Elaine Torres-Melendez, Radi Masri","doi":"10.1111/jopr.70206","DOIUrl":"https://doi.org/10.1111/jopr.70206","url":null,"abstract":"<p><strong>Purpose: </strong>To characterize current private practice patterns of prosthodontists in the United States using the 2024 American College of Prosthodontists (ACP) survey and to assess longitudinal trends relative to surveys conducted between 2008 and 2017.</p><p><strong>Materials and methods: </strong>A web-based survey was distributed to 2793 prosthodontists from December 6, 2024, to January 31, 2025, and a total of 284 responses were received (10%). Analyses focused on those in private practice, and survey domains included demographics, practice organization, clinical activity, and financial performance and were compared with prior ACP surveys.</p><p><strong>Results: </strong>The mean age of private practice respondents was approximately 55 years, reflecting continued workforce aging. Female representation increased to about 25%. Practice models shifted away from sole proprietorship toward group and employed arrangements. Most respondents worked 40-49 h per week, with 30-39 h devoted to patient care. Fixed prosthodontics and implant procedures accounted for the largest share of clinical time and revenue, and general dentists remained the primary referral source. Mean gross receipts exceeded $2.1 million, and mean net income was over $500,000, representing substantial improvement compared with earlier survey periods.</p><p><strong>Conclusion: </strong>The 2024 survey demonstrates a marked recovery in the economic performance of private practice prosthodontists compared with declines observed between 2008 and 2017. Long-term trends toward an aging workforce and increasing female representation persist. Structural shifts away from solo practice continue, reflecting broader changes within dentistry. Despite these changes, core clinical practice patterns remain stable, with fixed and implant prosthodontics dominating practice activity and revenue.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148680751","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}

{"title":"Impact of peri-implantitis on adjacent dental implants: A retrospective analysis.","authors":"Chris Gupta, Vinayak Joshi, Vivek Thumbigere-Math, Jeanne St Germain, Amjila Bam, Qingzhao Yu, Eswar Kandaswamy","doi":"10.1111/jopr.70205","DOIUrl":"https://doi.org/10.1111/jopr.70205","url":null,"abstract":"<p><strong>Purpose: </strong>Although peri‑implantitis is known to affect adjacent natural teeth, its site‑specific influence on neighboring implants remains poorly characterized. The purpose of this retrospective study was to evaluate whether peri‑implantitis exerts localized, site‑specific detrimental effects on adjacent dental implants and to determine whether these effects differ between mesial and distal adjacent implants.</p><p><strong>Materials and methods: </strong>A retrospective chart review was conducted on patients with two or more adjacent implants in function for ≥1 year, in which at least one implant was diagnosed with peri-implantitis. Clinical parameters such as probing depth (PD), relative probing depth (RPD), free mucosal margin (FMM), bleeding on probing (BOP) and radiographic bone levels were recorded and analyzed using linear and generalized linear mixed-effects models, accounting for patient-level clustering.</p><p><strong>Results: </strong>Fifty-three patients contributed to 78 peri-implantitis affected main implants and 100 adjacent implants. Overall, RPD was significantly greater at near sites than far sites (p = 0.0237), and FMM was more apical at near sites than far sites (p = 0.007). Distal adjacent implants showed significantly deeper PD (p = 0.037) and greater RPD (p = 0.034) at near sites, whereas mesial adjacent implants exhibited only increased recession (p = 0.012) compared to far sites. Marginal bone loss differences were small and not statistically significant. Notably, 53% of adjacent implants developed peri-implantitis.</p><p><strong>Conclusion: </strong>Peri-implantitis exerts localized, site-specific effects on adjacent implants, with more pronounced soft-tissue breakdown at near surfaces, particularly affecting distal neighbors. These findings underscore the need for close monitoring of implants adjacent to peri-implantitis sites.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148671080","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}

{"title":"Use of open-source software and photogrammetry in the fabrication of 3D-printed custom trays for edentulous patients: A technical guide.","authors":"João Victor Cunha Cordeiro, Lauren Bohner, Fernanda Pretto Zatt, Artur Ferronato Soto, Henrique Souza Dos Santos, Maria Eduarda Broering da Silva, Maurício Malheiros Badaró, Ricardo Armini Caldas","doi":"10.1111/jopr.70035","DOIUrl":"10.1111/jopr.70035","url":null,"abstract":"<p><p>A technique is described to obtain a 3D-printed custom tray for complete dentures through open-source, free software and additive manufacturing. This approach enables the production of custom trays in a cost-effective and optimized manner. A three-dimensional (3D) digital cast is obtained by photogrammetry and later used to design a digital custom tray. Then, the digital custom tray is manufactured by a 3D printer to be used in clinical procedures. This technique is a clean, rapid, and low-cost alternative to the traditional technique.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":"1164-1168"},"PeriodicalIF":3.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13456456/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145092637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving full-arch implant scanning accuracy with a Meccano-like device for scan bodies splinting: A dental technique.","authors":"Basem Tarek Fadl, Mohamed Sherine Ibrahim El-Attar, Alfredo Mikail Melo Mesquita, Amany Elhadary, Ingy Saied Soliman","doi":"10.1111/jopr.14022","DOIUrl":"10.1111/jopr.14022","url":null,"abstract":"<p><p>A long-term successful implant-supported prosthesis requires the creation of a passively fitting framework, based on an accurate intraoral digital implant scan. According to dental literature, splinted implant scan bodies (ISBs) provide higher intraoral scanning accuracy than non-splinted techniques. This technique presents a structured approach for splinting multi-unit abutment scan bodies (MUASBs) using customized manufactured devices to facilitate the recording of definitive intraoral implant scans.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":"1158-1163"},"PeriodicalIF":3.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13456346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143014707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of cleft palate type and manufacturing method on feeding plate adaptation: A volumetric micro-computed tomography analysis.","authors":"Osman Akıncı, Ece İrem Oğuz, Poyzan Bozkurt, Merve Berika Kadıoğlu, Mert Ocak, Kaan Orhan, Reha Şükrü Kişnişçi","doi":"10.1111/jopr.14027","DOIUrl":"10.1111/jopr.14027","url":null,"abstract":"<p><strong>Purpose: </strong>Feeding plates for cleft palate patients have been used by clinicians for many years to temporarily close the oro-nasal communication until definitive treatment with surgical techniques. The current in vitro study aimed to evaluate the adaptation of the feeding plates manufactured by two different techniques for three cleft types.</p><p><strong>Materials and methods: </strong>Feeding plates were manufactured with conventional compression molding (CM) and 3-dimensional (3D) additive manufacturing on main models representing bilateral cleft, unilateral right, and unilateral left cleft types (n = 10). The 3D volumetric space between the feeding plate and the corresponding main model was measured by micro-CT to evaluate the adaptation. The adaptation of the plates was assessed based on three different measurement regions: anterior, left, and right. Repeated measure analysis of variance (ANOVA), three factorial ANOVA, and post hoc Bonferroni tests were used as statistical analysis (α = 0.05).</p><p><strong>Results: </strong>CM groups showed higher volumetric space measurements between the base and master model than 3D groups regardless of measurement region and cleft type, which refers to misfit (p < 0.05). Cleft type differed in the adaptation of 3D groups yet not in CM groups (p < 0.05). The volumetric space evaluation for the right measurement region resulted in higher values regardless of manufacturing method and cleft type (p < 0.05).</p><p><strong>Conclusion: </strong>Considering that 3D-printed feeding plates showed better adaptation compared to conventionally manufactured plates for all cleft types, 3D printing can be suggested as the manufacturing method of choice for feeding plates.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":"1151-1157"},"PeriodicalIF":3.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13456359/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluid ingress and surface wettability of 3D-printed closed-hollow obturator specimens across material types and printing orientations.","authors":"Wisarut Prawatvatchara, Soranun Chantarangsu, Somphote Angkanawiriyarak, Raiwint Khunwisetkul, Kwanwong Boonpitak, Visaluk Punyawattananon, Cheewin Towithelertkul","doi":"10.1111/jopr.70201","DOIUrl":"https://doi.org/10.1111/jopr.70201","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effects of material type, printing orientation, and thermocycling on cumulative fluid ingress in three-dimensional (3D)-printed closed-hollow obturator specimens and to compare water contact angle among material-printing orientation groups.</p><p><strong>Materials and methods: </strong>Standardized closed-hollow obturator specimens were fabricated from NextDent Denture 3D+, Apex Base, and MED610 at 0°, 45°, and 90° (n = 10 per subgroup). After 24 h of conditioning, the specimens were weighed at baseline and after 5000 and 10,000 thermocycles. Fluid ingress was quantified as net and relative weight change from baseline. Water contact angle before thermocycling was measured using the sessile-drop method. Weight outcomes were analyzed with three-way mixed analysis of variance and contact angle with two-way analysis of variance (α = 0.05).</p><p><strong>Results: </strong>Both weight outcomes increased from 5000 to 10,000 thermocycles in all groups. Material, printing orientation, and thermocycling level significantly affected fluid ingress. Apex Base showed the greatest cumulative mass gain; NextDent Denture 3D+, intermediate values; and MED610, the lowest. Descriptively, values were highest at 0° and lowest at 90°. At 10,000 cycles, the highest mean net weight change occurred in Apex Base 0°, and the lowest in MED610 90°. Contact angle was significantly affected by material and orientation; NextDent Denture 3D+ showed the highest values, and MED610 the lowest.</p><p><strong>Conclusion: </strong>Cumulative fluid ingress increases with thermocycling and is influenced by material type and printing orientation in 3D-printed obturators. Surface wettability differs among groups but does not directly correspond to fluid ingress behavior.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148609604","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}

{"title":"Stain susceptibility and cleanability of conventional, CAD-CAM, and 3D-printed denture teeth.","authors":"Azhar Samargandi, Ahmet Orgev, Steven Makowka, Tyler McCluskey, Rui Li","doi":"10.1111/jopr.70199","DOIUrl":"https://doi.org/10.1111/jopr.70199","url":null,"abstract":"<p><strong>Purpose: </strong>This in vitro study aimed to evaluate: (1) the effects of staining agent type and denture tooth material type on the color stability of newly developed milled and 3D-printed denture tooth materials compared with conventional polymethylmethacrylate (PMMA) denture teeth and (2) the effect of denture cleanser on the color stability of these materials.</p><p><strong>Materials and methods: </strong>A total of 200 disc specimens (4 mm thick, 10 mm diameter; shade A1) were fabricated from five denture tooth materials (n = 40 each): conventional PMMA (HP-Jet), milled CAD-CAM resins (Ivotion [SM-I], Candulor [SM-C]), and 3D-printed resins (Flexcera [AM-F], Straumann [AM-S]). Each group underwent two sequential procedures: staining followed by cleaning. Specimens were immersed in one of four staining solutions-deionized water (control), orange juice, coffee, or red wine-for a standardized period (n = 10 per solution/material). Color was measured at baseline, post-staining, and post-cleaning using a calibrated spectroradiometer. Color changes (ΔE₀₀) were calculated using the CIEDE2000 formula. Cleaning was performed using denture cleaning tablets per the manufacturer's instructions. Statistical analysis included two-way ANOVA with interaction and Tukey post hoc tests for staining and material effects, and repeated-measures comparisons with Šídák adjustment for the effect of cleaning (α = 0.05).</p><p><strong>Results: </strong>Both material type and staining agent significantly influenced color change (p < 0.05). Most groups showed perceptible but clinically acceptable discoloration (ΔE₀₀ > 1.2 and < 2.7). SM-C and AM-F exposed to orange juice exhibited minimal changes (ΔE₀₀ < 1.2). AM-F stained with red wine showed the highest color change (ΔE₀₀ = 4.49 ± 0.73), exceeding clinical thresholds. No significant differences were observed among materials stained with orange juice or coffee (p > 0.05). Cleaning significantly reduced ΔE₀₀ values (p < 0.05), especially for most of the wine-stained specimens, with several groups achieving post-cleaning ΔE₀₀ < 1.2.</p><p><strong>Conclusions: </strong>The color stability of denture tooth materials is influenced by both resin type and staining agent. While most materials demonstrated perceptible yet clinically acceptable discoloration, red wine caused significant staining, particularly in 3D-printed AM-F. Cleaning was effective in reducing discoloration, often restoring color to imperceptible levels.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148609586","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}

{"title":"Comparative assessment of bleaching of natural teeth using ozone-enhanced low-concentration hydrogen peroxide.","authors":"Mahmoud K Al-Omiri, Tarek Jamal Jumah, Raed Abul Hassan, Khaled M Al-Omiri, Saleh Ali Alqahtani, Nada Ahmad E Alamoudi, Saeed Awod Bin Hassan, Naif N Abogazalah, Abdulaziz Algadhi, Edward Lynch","doi":"10.1111/jopr.70198","DOIUrl":"https://doi.org/10.1111/jopr.70198","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the efficacy of using a low concentration of hydrogen peroxide (HP) followed by ozone (7%-15% HP and ozone) and using a high concentration of HP (35% HP) in bleaching of natural teeth. In addition, the bleaching efficacy of ozone alone was evaluated in comparison to 7%-35% HP and ozone.</p><p><strong>Materials and methods: </strong>This randomized controlled in vitro study was carried out on 75 extracted human teeth with intact enamel. The teeth were randomly allocated to 5 groups (15 teeth per group) and were then bleached with either ozone alone, 35% HP and ozone, 15% HP and ozone, 10% HP and ozone, or 7% HP and ozone. Teeth shades (including CIELab values) were measured at baseline and after bleaching using conventional (VITA classic and 3D Master shade guides) and digital (Easyshade and Rayplicker Handy spectrophotometers) methods. Data were analyzed using ANOVA, repeated measures ANOVA, and Bonferroni post hoc tests (α = 0.05).</p><p><strong>Results: </strong>The mean ΔE₀₀ was larger than 1.8-2.00 threshold values in all groups, indicating perceived and identified bleaching effects by human eye. Groups 1 (ozone only) and 5 (7% HP + ozone) were associated with less Δshade between baseline and ozone bleaching than Groups 2 (35% HP + ozone), 3 (15% HP + ozone), and 4 (10% HP + ozone) (p ≤ 0.001). Without using ozone, bleaching with 35% HP resulted in superior bleaching effects (higher ΔE₀₀ values) when compared with 7% and 15% HP (p < 0.05). However, when followed by ozone, bleaching using lower concentrations of HP (7%-15% HP) resulted in similar bleaching outcomes (similar ΔE₀₀ values) when compared with bleaching using 35% HP (p > 0.05). Bleaching using ozone alone resulted in weaker bleaching effects when compared with HP with ozone (p < 0.05).</p><p><strong>Conclusion: </strong>Incorporating ozone into HP-based bleaching protocols would significantly enhance whitening efficacy. This combination enables the use of lower HP concentrations (7%-15% HP) without compromising bleaching results. This confirms ozone's value as a supportive bleaching agent that might have the potential to improve patient safety and comfort. Although bleaching with ozone alone yielded perceived color changes, it yielded inferior bleaching effects compared to bleaching using HP followed by ozone.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148609578","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}

{"title":"Trueness and scanning time of complete-arch intraoral scans of edentulous arches with implants under different moisture conditions: Effects of splinting-aid, scan body height, and scanner.","authors":"Cecília Santos Galvão, Fabiana Silveira Ramalho Moreira, Annie Karoline Bezerra de Medeiros, Gabriela Panca Sabatini, Burak Yilmaz, Adriana da Fonte Porto Carreiro","doi":"10.1111/jopr.70204","DOIUrl":"10.1111/jopr.70204","url":null,"abstract":"<p><strong>Purpose: </strong>This in vitro study evaluated the influence of the presence of saliva in varying levels on the trueness and scanning time of complete-arch intraoral scans for implant-supported prostheses, considering different scan body heights, splinting protocols, and scanners.</p><p><strong>Materials and methods: </strong>A three-dimensionally (3D)-printed edentulous maxillary model with six implants and multi-unit abutments was digitized using a metrology-grade industrial scanner (Artec Micro), using polyetheretherketone scan bodies (ISBs) of two heights (short: 4.5 mm and tall: 8.0 mm). The model was also scanned with three intraoral scanners (IOSs) (TRIOS 5 [TR], NeoScan 1000 [NS], and Primescan [PS]) under two splinting wire aids (splinted and non-splinted) and dry or artificial saliva-moisturized (lightly or highly) conditions. A total of 192 scans (n = 8 per experimental condition) were analyzed. Scanning time was recorded with a stopwatch, and trueness was analyzed as root mean square (RMS) deviation when industrial and IOS scans were aligned using Geomagic Control X. Data were analyzed with Kruskal-Wallis, Mann-Whitney U, and Bonferroni-adjusted pairwise comparisons (α = 0.05).</p><p><strong>Results: </strong>Saliva significantly affected trueness and scan time, with higher moisture levels resulting in greater deviations (p < 0.001) and longer acquisition times for all tested IOSs (p < 0.001). IOS type, ISB height, and scan-aid also had significant effects on scan trueness (p < 0.001). TR presented the lowest RMS values, followed by PS and NS. Under moisture conditions, short ISBs and non-splinted configurations produced more reliable scans (p < 0.001). Short ISBs consistently reduced total scanning time compared with tall ISBs (p < 0.001). PS demonstrated the shortest scanning times under dry and highly moisturized conditions, whereas NS combined with short ISBs showed the fastest acquisition under light moisture conditions.</p><p><strong>Conclusion: </strong>The simulation of intraoral saliva presence compromised scan trueness, particularly when moisture level increased. Clinically, minimizing saliva presence during scans and selecting appropriate-height ISBs can enhance trueness for digital implant scans. Although scan-aid may reduce scanning time, its use should be limited to situations in which stabilization is critical, such as long edentulous arches or long interimplant distances, as these conditions may increase optical deviations in the presence of saliva. These findings support the refinement of clinical protocols for complete-arch implant scans, emphasizing saliva control and careful scan strategy selection to improve trueness of digital edentulous scans.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148609646","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}