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

{"title":"Long-term outcomes and complication rates of tooth-implant-supported fixed dental prostheses: A retrospective cohort study.","authors":"Simon Dahlgren, Carin Starkhammar Johansson, Shariel Sayardoust","doi":"10.1111/jopr.13982","DOIUrl":"https://doi.org/10.1111/jopr.13982","url":null,"abstract":"<p><strong>Purpose: </strong>To examine the factors influencing the risk of biological and technical complications in tooth-implant-supported fixed dental prostheses (T-I-FDPs), focusing on location, configuration, and the impact of existing dental health conditions.</p><p><strong>Materials and methods: </strong>A retrospective cohort study was conducted, accompanied by a follow-up clinical and radiological examination, involving 58 patients (37 women, 21 men; mean age: 63.4 years) who had received 68 T-I-FDPs at least 5 years earlier, at the Department of Prosthodontics, Centre of Oral Rehabilitation, Region Östergötland, Sweden. Correlations between implant placement specifics, arrangement of teeth and implants, and the presence of root-filled teeth on the incidence of complications were analyzed.</p><p><strong>Results: </strong>The analysis highlighted significant complication risk variance, based on the location in the jaw of the implant, with reduced risk for mandibular placements (Hazard ratio [HR] 0.37). Complex arrangements (HR 2.46) and the presence of root-filled teeth (HR 1.48) were associated with higher complication rates.</p><p><strong>Conclusion: </strong>This study demonstrates that anatomical considerations and preexisting dental health significantly influence the risk of complications in T-I-FDPs. Mandibular implant placements showed a reduced risk of complications compared to maxillary placements. The presence of root-filled teeth and complex prosthesis configurations were associated with higher complication rates. These findings highlight the need for customized treatment strategies to mitigate risks and enhance long-term outcomes for patients with T-I-FDPs.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808267","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":"A retrospective single cohort study on the 5-13 year clinical outcomes of implant-supported cross-arch fixed dental prostheses with monolithic zirconia-based frameworks.","authors":"Jia Luo, Yifan Zhang, Ziyang Yu, Xi Jiang, Jianhui Li, Bo Chen, Ping Di, Ye Lin, Yu Zhang","doi":"10.1111/jopr.13991","DOIUrl":"https://doi.org/10.1111/jopr.13991","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the mid-to-long term clinical outcomes of the implant-supported cross-arch fixed dental prostheses (IFCDPs) with monolithic zirconia-based frameworks and related risk factors of success and survival.</p><p><strong>Materials and methods: </strong>This retrospective study encompassed individuals exhibiting terminal dentition or edentulism in the maxilla and/or mandible who underwent treatment involving IFCDPs with monolithic zirconia frameworks. Inclusion criteria required a documented follow-up period of at least five years post-definitive prosthesis delivery. Evaluation of outcomes focused on the survival rates of implant and prosthesis, along with the incidence of biological and technical complications. The mixed-effects Cox regression model was employed to analyze the risk factors associated with prosthesis failure and peri-implantitis.</p><p><strong>Results: </strong>A cohort of 47 patients, consisting of 14 women and 33 men with a mean age of 55.2 ± 12.5 years (range: 25-83), was included in this study. The mean follow-up period was 71.6 ±13.2 months (mean ± SD, range: 60-147). A total of 51 cross-arch prostheses supported by 302 implants, distributed between the maxilla (27 prostheses) and mandible (24 prostheses), were assessed. By the end of the follow-up period, 289 (97.64%) of the 302 implants remained functional. Peri-implantitis was observed in 27 implants (24 in mandible), yielding an overall implant-related success rate of 91.06%. Nine frameworks experienced fractures (eight in mandible), resulting in an overall prosthesis-related survival rate of 82.35%. Subsequent analysis revealed the mandible to be a significant risk factor for framework fracture (HR = 11.64, p = 0.024) and peri-implantitis (HR = 10.88, p = 0.003).</p><p><strong>Conclusions: </strong>The implant-supported cross-arch fixed dental prostheses featuring monolithic zirconia-based frameworks demonstrated favorable clinical outcomes throughout a 5-13-year observation period. Notably, in the design of monolithic zirconia-based framework prostheses, the mandible emerged as a significant risk factor for framework fractures and an independent risk factor for peri-implantitis.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142803002","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":"Tensile bond strength of soft relining materials to CAD-CAM denture base materials.","authors":"Rui Li, Ahmed Al Mozayen, Tyler McCluskey, Wendy A Clark, Ramtin Sadid-Zadeh","doi":"10.1111/jopr.13998","DOIUrl":"https://doi.org/10.1111/jopr.13998","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to investigate the tensile bond strength between soft relining materials and different denture base materials.</p><p><strong>Materials and methods: </strong>The study was conducted in accordance with ISO 23401:2023. A total of 288 rectangular specimens (10L × 10H × 20W mm) were fabricated from various denture base materials, including a heat-compression polymethylmethacrylate (PMMA), two types of milled PMAA, and three types of 3D-printed resins, with bonding using two chairside soft reline materials (Coe-Soft and Lynal). Specimens were placed in distilled water for 24 h before applying tensile force at a 5 mm/min crosshead speed. The tensile bond strength values (MPa) were calculated at maximum tensile force (N) before failure. Two-way ANOVA and post hoc multiple comparison tests were used to assess the effect of denture base and soft reline materials on the tensile bond strength (α = 0.05).</p><p><strong>Results: </strong>A significant difference in the tensile bond strength was found among the different types of denture base materials (p < 0.001), regardless of relining material type. Lynal-relined milled IvoBase demonstrated the highest tensile bond strength (0.5 ± 0.06 MPa), followed by Lynal-relined milled Lucitone (0.44 ± 0.03 MPa), both of which are clinically acceptable as they are equal or greater 0.44 MPa. The lowest tensile bond strength was detected in Lynal-relined 3D printed FotoDent (0.09 ± 0.02 MPa). Lynal exhibited significantly higher tensile bond strength (p < 0.05) than Coe-Soft soft reline material when bonded to PMMA bases; however, there was no significant difference between Lynal and Coe-Soft when bonded to 3D-printed base materials (p > 0.05).</p><p><strong>Conclusions: </strong>The tensile bond strength between soft relining materials and denture bases is material-dependent, influenced by both the type of denture base material and the type of soft relining material used.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142803006","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":"Artificial intelligence applications in smile design dentistry: A scoping review.","authors":"Rakan E Baaj, Talal A Alangari","doi":"10.1111/jopr.14000","DOIUrl":"https://doi.org/10.1111/jopr.14000","url":null,"abstract":"<p><strong>Purpose: </strong>Artificial intelligence (AI) applications are growing in smile design and aesthetic procedures. The current expansion and performance of AI models in digital smile design applications have not yet been systematically documented and analyzed. The purpose of this review was to assess the performance of AI models in smile design, assess the criteria of points of reference using AI analysis, and assess different AI software performance.</p><p><strong>Methods: </strong>An electronic review was completed in five databases: MEDLINE/PubMed, EMBASE, World of Science, Cochrane, and Scopus. Studies that developed AI models for smile design were included. The search strategy included articles published until November 1, 2024. Two investigators independently evaluated the quality of the studies by applying the Joanna Briggs Institute (JBI) Critical Appraisal Checklist for Quasi-Experimental Studies and Textual Evidence: Expert Opinion Results.</p><p><strong>Results: </strong>The search resulted in 2653 articles. A total of 2649 were excluded according to the exclusion criteria after reading the title, abstract, and/or full-text review. Four articles published between 2023 and 2024 were included in the present investigation. Two articles compared 2D and 3D points while one article compared the outcome of satisfaction between dentists and patients, and the last article emphasized the ethical components of using AI.</p><p><strong>Conclusion: </strong>The results of the studies reviewed in this paper suggest that AI-generated smile designs are not significantly different from manually created designs in terms of esthetic perception. 3D designs are more accurate than 2D designs and offer more advantages. More articles are needed in the field of AI and smile design.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142803004","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":"Issue Information - Editorial Board","authors":"","doi":"10.1111/jopr.13548","DOIUrl":"https://doi.org/10.1111/jopr.13548","url":null,"abstract":"","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":"33 9","pages":"833-834"},"PeriodicalIF":3.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jopr.13548","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868411","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":"The effect of cyclic dislodgement and denture cleanser storage on various attachment systems used in implant-overdenture prostheses.","authors":"Tuğçe Karabulut-Açıkgöz, Şenay Canay","doi":"10.1111/jopr.14002","DOIUrl":"https://doi.org/10.1111/jopr.14002","url":null,"abstract":"<p><strong>Purpose: </strong>The present study aims to evaluate and compare the retention forces of nylon and polyetheretherketone (PEEK) attachments with different color codes over time and denture cleansers.</p><p><strong>Materials and methods: </strong>Two plexiglass models were prepared for this study. In the first model, two Astra-Tech EV implants and two Locator abutments were placed, followed by the placement of two corresponding housings in the opposite blocks where nylon attachments were fitted. The second model was mounted with two Medentika Microcone RI implants and two Novaloc abutments. PEEK attachments were then placed in the corresponding housings. Blue-pink-clear nylon and white-yellow-green PEEK attachments' (n = 8 for each group) maximum dislodgement forces were measured at baseline (T₀). Second measurements were conducted after 1080 insertion and removal cycles (T₁). Corega denture cleanser solution was prepared by adding one tablet to 200 mL of tap water. All attachments were soaked in the solution for three minutes and rinsed under running water. Each group of attachments was soaked for 1080 min in total, corresponding to 1 year of clinical use. The final measurements were conducted after storage in the solution. One specimen and abutment were randomly selected from each group and examined using a scanning electron microscope. The data were analyzed by repeated measures ANOVA and Bonferroni multiple comparison test (p < 0.05). The percentage decrease in the dislodgement force of the attachments was also calculated.</p><p><strong>Results: </strong>Insertion and removal cycles significantly affected the retention values (p < 0.001). Storage in the cleanser did not significantly affect the retention (p > 0.05). The lowest retention value was observed in blue nylon attachments (501.50 ± 33.39 gf [gram force]) after insertion-removal (T₁), with a similar trend after immersion (476.13 ± 39.75 gf) (T₂). The highest retention was observed similarly in clear nylon attachments (1660.38 ± 41.73 gf) after insertion-removal after immersion (1636.50 ± 62.20 gf) (T₂). In terms of percentage loss of retention, yellow PEEK attachments were the most affected group after all test procedures (36.88%), while the lowest affected group was pink nylon attachments (21.56%).</p><p><strong>Conclusions: </strong>PEEK attachments were the least affected by the denture cleanser but the most affected by insertion and removal cycles. Corega denture cleanser had no significant effect on nylon or PEEK attachments, whereas the insertion-removal cycle had a significant effect on both attachment systems.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787249","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":"Risk factors contributing to interproximal contact loss between an implant crown and a natural tooth.","authors":"George C Pappous, Stephen Campbell, Gary Goldstein","doi":"10.1111/jopr.13992","DOIUrl":"https://doi.org/10.1111/jopr.13992","url":null,"abstract":"<p><strong>Purpose: </strong>Interproximal contact loss (ICL) is considered a prevalent complication for a tooth abutting an implant restoration. While numerous potential causes for ICL have been presented, there is no consensus. A review of the current literature with a focus on possible risk factors was performed.</p><p><strong>Materials and methods: </strong>A PubMed search using keywords \"implant OR dental implants OR implant supported prosthesis AND proximal contact loss OR ICL OR loss of interproximal contact OR open contact OR interproximal open contact OR adjacent natural teeth\" resulted in 81 citations, 9 of which were relevant to the focus question. Additional references were culled from the reference lists in the identified articles. Systematic reviews, case series, and case reports were reviewed with a focus on causation, association, or correlation.</p><p><strong>Results: </strong>Eight systematic reviews and 14 case series were reviewed. The prevalence of ICL has been reported to be as low as 16% and as high as 66%. ICL was more common on the mesial side of implants and when a tooth abuts a splinted implant restoration. The absence of a uniform definition to accurately describe an interproximal (IP) contact and an open IP contact is demonstrated in the literature. A lack of standardized measurement strategies that relate to a needed consensus definition further exacerbates the broad range of reported results regarding ICL. The lack of controls for almost all the ICL literature makes it difficult to draw conclusions and comparisons to unrestored, natural tooth IP contacts and the prevalence of ICL in this patient population. As a result, the available studies are inadequate to support a causal theory and the potential risk factors associated with ICL.</p><p><strong>Conclusions: </strong>There is a large range of reported prevalence for IP contact loss. ICL is more common when a natural tooth abuts a splinted implant restoration. ICL is more common on the mesial, as opposed to the distal, of an implant retained restoration. Consensus in the definition and measurement strategies for ICL needs to be established to provide standardized terminology and methodology. Potential risk factors such as occlusion, restorative material, and tooth contact area need to be investigated.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142787245","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":"Case reports of oral appliance therapy on three young adults with Down syndrome and OSA.","authors":"Jingjing Zhang, Yuuya Kohzuka, Kathleen M Bennett, Fernanda R Almeida","doi":"10.1111/jopr.13997","DOIUrl":"https://doi.org/10.1111/jopr.13997","url":null,"abstract":"<p><p>Patients with Down syndrome (DS) have a high incidence of obstructive sleep apnea (OSA) due to hypotonia, weight, underdeveloped midface, and relative macroglossia. This article presents three cases of young adults with DS, who were diagnosed with mild to severe OSA and unable to tolerate positive airway pressure therapy. These patients have been successfully treated with a custom-made mandibular advancement device (MAD) or dual treatment with MAD and bi-level positive airway pressure (PAP) therapy. The baseline apnea-hypopnea index (AHI) of the three patients were 15.5/h, 31.8/h, and 41.3/h. The follow-up AHI after the application of MAD in three patients was 25/h (13 months after), 6/h (ODI 4%, 57 months after), and 21.8/h (21 months after), respectively. The application of MAD to treat OSA in patients with DS is a reasonable alternative when patients refuse PAP therapy. Although MAD might be less effective than PAP therapy, significant symptomatic improvement could be found in patients with DS after oral appliance therapy. The combination of MAD and PAP can decrease the PAP pressure and therefore improve adherence. This is the first case report to show that young adult patients with DS can successfully benefit from oral appliance therapy for OSA treatment.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781577","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":"A clinical comparative analysis using an optical tracking device versus conventional tracking device in the production of occlusal appliances.","authors":"Chan W Cheong, Kyle Radomski, James Otten, Sang J Lee","doi":"10.1111/jopr.13989","DOIUrl":"https://doi.org/10.1111/jopr.13989","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Purpose: &lt;/strong&gt;Optical tracking devices (OTDs) hold promise for enhancing patient-centered prostheses, but their efficacy remains underexplored. This clinical study aimed to comprehensively evaluate differences in static and dynamic occlusions among occlusal appliances fabricated using optical tracking, conventional tracking, and average articulator values (AAVs), providing insights into their efficacy in clinical and research-based practices.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Materials and methods: &lt;/strong&gt;Twelve dentate participants aged over 25 years, with Angle Class I and II occlusal relationships, were enrolled. Occlusal appliances were fabricated by different condylar guidance values obtained by the three systems. The condylar guidance values were measured by an OTD via MODJAW, a conventional tracking device (CTD) via Cadiax compact 2, and the AAV with Bennett angle 10°, immediate mandibular lateral translation 0.5 mm, and sagittal condylar inclination (SCI) 35°. Occlusal appliances were designed using computer-aided design (CAD) software with the measured condylar guidance values from three systems. Subsequently, standard tessellation language (STL) files were transferred to computer-aided manufacturing (CAM) software for 3D printing with photopolymer resin. Each participant received three occlusal appliances fabricated using the three different systems. The accuracy of the systems was evaluated by accessing the clinical outcomes of the occlusal appliances. After placement, the number of contact points in maximal intercuspation position (MIP) and dynamic occlusion interferences were recorded, along with any discrepancies between designed and recorded contact points. Any anterior open bites at MIP with the appliance in place were measured from the maxillary incisal edge to the mandibular incisal edge. Statistical analysis included Kruskal-Wallis one-way analysis of variance (ANOVA) and Mann-Whitney tests with Bonferroni correction for pairwise comparisons (α = 0.05).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;In assessing static occlusion, significant differences were found in contact point discrepancies at MIP. OTD exhibited the lowest mean discrepancy of contact points compared with the original design (1.833 ± 0.312), followed by CTD (4.083 ± 0.758) and AAV (4.833 ± 1.389), with a statistical significance (p = 0.047). At the final protrusive position, OTD (0.400 ± 0.204) and CTD (1.400 ± 0.438) methods showed significantly lower discrepancies compared with AAV (3.583 ± 0.352) (p &lt; 0.001). Additionally, the OTD method demonstrated a statistically significant reduction in anterior open bite at MIP (0.115 ± 0.044 mm) compared with AAV (0.617 ± 0.246 mm) (p = 0.049). In dynamic occlusion, OTD showed no interferences in all subjects during protrusive movement, significantly outperforming both CTD (0.917 ± 0.474) and AAV (0.417 ± 0.202) (p = 0.033). No significant differences were observed among the methods for working and nonworking side laterotrusive movem","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781575","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 analysis of smartphone colorimeter apps and spectrophotometry for measuring forehead skin color in maxillofacial prosthesis fabrication.","authors":"Somayeh Niakan, Mahdi Safi, Shima Younespour, Shayan Khoshtarkib","doi":"10.1111/jopr.13970","DOIUrl":"https://doi.org/10.1111/jopr.13970","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the accuracy and precision of two smartphone colorimeter apps, Color Grab, and Color Picker, in measuring forehead skin color and to compare their readings with those from a spectrophotometer.</p><p><strong>Materials and methods: </strong>Fifty participants (26 males, 24 females; median age 23 years, range 21-45) were included. Using a smartphone camera, images of forehead skin were captured, and CIELAB color values were reported by both apps. Measurements from a reference spectrophotometer (MiniScan EZ 4500L, 45°/0° geometry) served as the gold standard. Trueness and precision were assessed using CIELAB and CIEDE2000 formulas. Statistical analyses included one-way ANOVA and Mann-Whitney tests, with significance at p < 0.05.</p><p><strong>Results: </strong>Both apps showed comparable accuracy in capturing skin color, with absolute trueness (ΔE_Abs) for Color Grab at 7.59 (CIEDE2000) and Color Picker at 7.65. Relative trueness (ΔE_Rel) was 3.79 for Color Grab and 3.70 for Color Picker. Precision (MCDM) demonstrated significant differences between the apps: Color Grab at 1.34 (CIEDE2000) compared to Color Picker at 0.96 (p < 0.0001).</p><p><strong>Conclusion: </strong>While smartphone apps may not match the accuracy of spectrophotometers, they offer valuable alternatives for color matching in maxillofacial prostheses. Future studies should focus on minimizing systematic errors related to environmental factors and camera settings to enhance measurement accuracy.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142773995","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}