Journal of Advanced Prosthodontics最新文献

{"title":"Reliability of a chairside CAD-CAM surgical guide for dental implant surgery on the anterior maxilla: An <i>in vitro</i> study.","authors":"Phyo Ei Ei Htay, Richard Leesungbok, Suk Won Lee, Yu-Jin Jee, Kyung Lhi Kang, Sung Ok Hong","doi":"10.4047/jap.2023.15.5.259","DOIUrl":"10.4047/jap.2023.15.5.259","url":null,"abstract":"<p><strong>Purpose: </strong>This study evaluated the reliability of the chair-side CAD-CAM surgical guide (CSG) in the anterior maxilla by comparing its accuracy with the laboratory 3D-printed surgical guide (3DSG) and manual surgical guide (MSG) concerning different levels of dentists' surgical experience.</p><p><strong>Materials and methods: </strong>Ten surgical guides of each type (MSG, 3DSG, and CSG) were fabricated on a control study model with missing right and left central incisors. Sixty implants were placed in 30 study models by two dentists (one inexperienced and one experienced) using three different types of surgical guides. Horizontal deviations at shoulder and at apex, vertical, and angular deviations were measured after superimposing the planned and placed implant positions in the software. Kruskal-Wallis and Mann-Whitney U tests were used to compare the accuracy of three types of surgical guides in each dentist group and the accuracy of each surgical guide between two dentists (α = .05).</p><p><strong>Results: </strong>There were no significant differences in any deviations between CSG and 3DSG, apart from angular deviation, for both dentists' groups. Moreover, both CSG and 3DSG showed no significant differences in accuracy between the two dentists (<i>P</i> > .05). In contrast, MSG demonstrated significant differences from CSG and 3DSG and a significant difference in accuracy between the two dentists (<i>P</i> < .05).</p><p><strong>Conclusion: </strong>CSG provides superior accuracy to MSG in implant placement in the maxillary anterior region and is comparable to 3DSG at different levels of surgical experience, while offering the benefits of shorter manufacturing time and reduced patient visits.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625886/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488663","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}

{"title":"Influences of luting cement shade on the color of various translucent monolithic zirconia and lithium disilicate ceramics for veneer restorations.","authors":"Ghada Alrabeah, Nawaf Alamro, Atif Alghamdi, Ahmed Almslam, Meshari Azaaqi","doi":"10.4047/jap.2023.15.5.238","DOIUrl":"10.4047/jap.2023.15.5.238","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study was to assess the effect of resin cement shade on the color of different novel ultratranslucent monolithic zirconia and lithium disilicate veneer materials.</p><p><strong>Materials and methods: </strong>For a total of 40 specimens, flat cylindrical discs with a 9-mm diameter and 0.5-mm thickness were created using CAD/CAM technology. The specimens were divided into five groups according to their material (n = 8) (e.max, Prettau, Aidite, Shofu and Dima) using A1 shade. Resin discs with the same diameter and shade as the specimens served as tooth-colored substructures. Three shades (neutral, light and warm) of resin cement try-in pastes (Variolink Esthetic LC) were used as the luting cement material. The color of each material group was measured before and after cementation using the three cement shades, and the CIE L*a*b* coordinates were obtained with a spectrophotometer. Values for the translucency parameter (TP) and color change delta E (E) before (baseline) and after cementation of each specimen were determined. To compare differences among the material groups within each shade of cement and among various shades of cement within each material, the data were analyzed using one-way ANOVA and post hoc testing.</p><p><strong>Results: </strong>Color coordinates L*, a* and b* significantly changed after the application of try-in pastes relative to baseline values, with a noticeable decrease in lightness (L*) (<i>P</i> < .05). A significant color change (ΔE) was observed in all tested materials after cementation, with ΔE values exceeding 3.3 (<i>P</i> < .05). Although TP changed after cementation for most materials tested, these changes were not statistically significant (<i>P</i> > .05). Shofu and Dima ceramics showed the lowest TP values, while Aidite and Prettau showed the highest TP values. For e.max, translucency decreased after cementation with neutral and warm shades, and it significantly increased after cementation with a light shade.</p><p><strong>Conclusion: </strong>The shade of cement significantly altered the final color of the ceramic veneer material to a level above the threshold at which the clinical perception of color change occurred (> 3.3). The TP was not influenced by the cement shade. The translucency levels of the novel ultratranslucent multilayer monolithic zirconia ceramics Aidite and Prettau were higher than that of the lithium disilicate e.max material.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488662","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}

{"title":"<i>In vitro</i> comparison of the accuracy of an occlusal plane transfer method between facebow and POP bow systems in asymmetric ear position.","authors":"Dae-Sung Kim, So-Hyung Park, Jong-Ju Ahn, Chang-Mo Jeong, Mi-Jung Yun, Jung-Bo Huh, So-Hyoun Lee","doi":"10.4047/jap.2023.15.5.271","DOIUrl":"10.4047/jap.2023.15.5.271","url":null,"abstract":"PURPOSE This in vitro study aimed to compare the accuracy of the conventional facebow system and the newly developed POP (PNUD (Pusan National University Dental School) Occlusal Plane) bow system for occlusal plane transfer in asymmetric ear position. MATERIALS AND METHODS Two dentists participated in this study, one was categorized as Experimenter 1 and the other as Experimenter 2 based on their clinical experience with the facebow (1F, 2F) and POP bow (1P, 2P) systems. The vertical height difference between the two ears of the phantom model was set to 3 mm. Experimenter 1 and Experimenter 2 performed the facebow and POP bow systems on the phantom model 10 times each, and the transfer accuracy was analyzed. The accuracy was evaluated by measuring the angle between the reference virtual plane (RVP) of the phantom model and the experimental virtual plane (EVP) of the upper mounting plate through digital superimposition. All data were statistically analyzed using a paired t-test (P < .05). RESULTS Regardless of clinical experience, the POP bow system (0.53° ± 0.30 (1P) and 0.19° ± 0.18 (2P) for Experimenter 1 and 2, respectively) was significantly more accurate than the facebow system (1.88° ± 0.50 (1F) and 1.34° ± 0.25 (2F), respectively) in the frontal view (P < .05). In the sagittal view, no significant differences were found between the POP bow system (0.92° ± 0.50 (1P) and 0.73° ± 0.42 (2P) for Experimenter 1 and 2, respectively) and the facebow system (0.82° ± 0.49 (1F) and 0.60° ± 0.39 (2F), respectively), regardless of clinical experience (P > .05). CONCLUSION In cases of asymmetric ear position, the POP bow system may transfer occlusal plane information more accurately than the facebow system in the frontal view, regardless of clinical experience.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625888/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488659","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}

{"title":"Effect of artificial aging on mechanical and physical properties of CAD-CAM PMMA resins for occlusal splints.","authors":"Júlia Correa Raffaini, Eduardo Jose Soares, Rebeca Franco de Lima Oliveira, Rocio Geng Vivanco, Ayodele Alves Amorim, Ana Lucia Caetano Pereira, Fernanda Carvalho Panzeri Pires-de-Souza","doi":"10.4047/jap.2023.15.5.227","DOIUrl":"10.4047/jap.2023.15.5.227","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to assess and compare the color stability, flexural strength (FS), and surface roughness of occlusal splints fabricated from heat-cured acrylic resin, milled polymethyl methacrylate (PMMA)-based resin, and 3D-printed (PMMA) based-resin.</p><p><strong>Materials and methods: </strong>Samples of each type of resin were obtained, and baseline measurements of color and surface roughness were recorded. The specimens were divided into three groups (n = 10) and subjected to distinct aging protocols: thermomechanical cycling (TMC), simulated brushing (SB), and control (without aging). Final assessments of color and surface roughness and three-point bending test (ODM100; Odeme) were conducted, and data were statistically analyzed (2-way ANOVA, Tukey, <i>P</i> <.05).</p><p><strong>Results: </strong>Across all resin types, the most significant increase in surface roughness (Ra) was observed after TMC (<i>P</i> < .05), with the 3D-printed resin exhibiting the lowest Ra (<i>P</i> < .05). After brushing, milled resin displayed the highest Ra (<i>P</i> < .05) and greater color alteration (ΔE₀₀) compared to 3D-printed resin. The most substantial ΔE₀₀ was recorded after brushing for all resins, except for heat-cured resin subjected to TMC. Regardless of aging, milled resin exhibited the highest FS (<i>P</i> < .05), except when compared to 3D-printed resin subjected to TMC. Heat-cured resin exposed to TMC demonstrated the lowest FS, different (<i>P</i> < .05) from the control. Under control conditions, milled resin exhibited the highest FS, different (<i>P</i> < .05) from the brushed group. 3D-printed resin subjected to TMC displayed the highest FS (<i>P</i> < .05).</p><p><strong>Conclusion: </strong>Among the tested resins, 3D-printed resin demonstrated superior longevity, characterized by minimal surface roughness and color alterations. Aging had a negligible impact on its mechanical properties.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625884/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488660","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}

{"title":"Effect of exposure energy dose on lateral resolution and flexural strength of three-dimensionally printed dental zirconia.","authors":"Kyle Radomski, Yun-Hee Lee, Sang J Lee, Hyung-In Yoon","doi":"10.4047/jap.2023.15.5.248","DOIUrl":"10.4047/jap.2023.15.5.248","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to evaluate the effects of exposure energy on the lateral resolution and mechanical strength of dental zirconia manufactured using digital light processing (DLP).</p><p><strong>Materials and methods: </strong>A zirconia suspension and a custom top-down DLP printer were used for in-office manufacturing. The viscosity of the suspension and uniformity of the exposed light intensity were controlled. Based on the exposure energy dose delivered to each layer, the specimens were classified into three groups: low-energy (LE), medium-energy (ME), and high-energy (HE). For each energy group, a simplified molar cube was used to measure the widths of the outline (<i>X</i>_<i>o</i> and <i>Y</i>_<i>o</i>) and isthmus (<i>X</i>_<i>i</i> and <i>Y</i>_<i>i</i>), and a bar-shaped specimen of the sintered body was tested. A Kruskal-Wallis test for the lateral resolution and one-way analysis of variance for the mechanical strength were performed (α = .05).</p><p><strong>Results: </strong>The zirconia green bodies of the ME group showed better lateral resolution than those of the LE and HE groups (both <i>P</i> < .001). Regarding the flexural strength of the sintered bodies, the ME group had the highest mean value, whereas the LE group had the lowest mean value (both <i>P</i> < .05). The ME group exhibited fewer agglomerates than the LE group, with no distinctive interlayer pores or surface defects.</p><p><strong>Conclusion: </strong>Based on these findings, the lateral resolution of the green body and flexural strength of the sintered body of dental zirconia could be affected by the exposure energy dose during DLP. The exposure energy should be optimized when fabricating DLP-based dental zirconia.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10625885/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488661","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}

{"title":"The mechanical properties of 3D printed denture base resin incorporating essential oil microcapsules.","authors":"Steve An,&nbsp;Jane Lesleigh Evans,&nbsp;Stephen Hamlet,&nbsp;Robert Matthew Love","doi":"10.4047/jap.2023.15.4.189","DOIUrl":"https://doi.org/10.4047/jap.2023.15.4.189","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to investigate the mechanical properties of three-dimensional (3D) printed denture base resin incorporating microcapsules containing plant essential oils.</p><p><strong>Materials and methods: </strong>Denture base specimens containing up to 3% w/v essential oil microcapsule powders (MCPs), i.e., eucalyptus, geranium, lavender, menthol, and tea tree, in two resins (Detax and NextDent 3D+) were 3D printed using two printers (Asiga and NextDent 5100). The dispersion and interaction of the MCPs in the resin were assessed by SEM while the mechanical properties of the incorporated denture base including flexural strength (MPa), flexural modulus (MPa), Vickers hardness (VHN), and surface roughness (Ra) were also subsequently evaluated. Statistical analysis of any differences in mean values was determined using a two-way ANOVA with Tukey's post hoc testing (α = .05).</p><p><strong>Results: </strong>The spherical shape of the MCPs was maintained during the mixing and polymerization/printing process. However, the Detax-Asiga group showed significant agglomeration of the MCPs even at the lowest MCP concentration levels (0.5% w/v). Overall, as the microcapsule concentration increased, the mean flexural strength decreased, though the menthol MCP groups remained compliant with the ISO standard. The flexural modulus and harness remained relatively unchanged, and the flexural modulus complied with the ISO standard regardless of the MCP concentration. Surface roughness increased with the addition of the MCPs but also remained below that required for clinical acceptance.</p><p><strong>Conclusion: </strong>Incorporation of microencapsulated plant essential oils into 3D printed denture base resin was successfully achieved. While incorporation negatively influenced flexural strength and surface roughness, little effect on flexural modulus and Vickers hardness was demonstrated.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/04/9e/jap-15-189.PMC10471502.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10142879","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}

{"title":"A prospective multicenter clinical study on the efficiency of detachable ball- and spring-retained implant prosthesis.","authors":"Min-Jung Kim,&nbsp;Won-Tak Cho,&nbsp;Su-Hyun Hwang,&nbsp;Ji-Hyeon Bae,&nbsp;Eun-Bin Bae,&nbsp;June-Sung Shim,&nbsp;Jong-Eun Kim,&nbsp;Chang-Mo Jeong,&nbsp;Jung-Bo Huh","doi":"10.4047/jap.2023.15.4.202","DOIUrl":"https://doi.org/10.4047/jap.2023.15.4.202","url":null,"abstract":"PURPOSE This prospective clinical study was conducted to evaluate the clinical usefulness of the freely detachable zirconia ball- and spring-retained implant prosthesis (BSRP) through a comparative analysis of screw- and cement-retained implant prosthesis (SCRP). MATERIALS AND METHODS A multi-center, randomized, prospective clinical study evaluating the clinical usefulness of the detachable zirconia ball- and spring-retained implant prostheses was conducted. Sixty-four implant prostheses in 64 patients were examined. Periodic observational studies were conducted at 0, 3, 6, and 12 months after delivery of the implant prosthesis. Factors such as implant success rate, marginal bone resorption, periodontal pocket depth, plaque and bleeding index, and prosthetic complications were evaluated, respectively. RESULTS During the 1-year observation period, all implants survived without functional problems and clinical mobility, showing a 100% implant success rate. Marginal bone resorption was significantly higher in the SCRP group than in the BSRP group only at the time of implant prosthesis delivery (P = .043). In all observation periods, periodontal pocket depth was slightly higher in the BSRP group than in the SCRP group, but there was no significant difference (P > .05). The modified plaque index (mPI) scores of both groups were moderate. Higher ratio of a score 2 in modified sulcus bleeding index (mBI) was observed in the BSRP group in the 6- and 12-months observation. CONCLUSION Within the limitations of this study, the newly developed zirconia ball- and spring-retained implant prosthesis could be considered as an applicable and predictable treatment method along with the existing screw- and cement-retained prosthesis.","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/87/66/jap-15-202.PMC10471505.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10149377","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}

{"title":"Effect of connector configuration on the fracture load in conventional and translucent zirconia three-unit fixed dental prostheses.","authors":"Chonticha Subsomboon,&nbsp;Somchai Urapepon","doi":"10.4047/jap.2023.15.4.171","DOIUrl":"https://doi.org/10.4047/jap.2023.15.4.171","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study was to determine the effect of the connector configuration on the fracture load in conventional and translucent zirconia of three-unit fixed dental prostheses (FDPs).</p><p><strong>Materials and methods: </strong>Six different three-unit FDPs were prepared (n = 6) from three types of zirconia (3Y-TZP (Katana ML^®), 4Y-TZP (Katana STML^®), and 5Y-TZP (Katana UTML^®)) in combination with two connector configurations (4 × 2.25, 3 × 3 mm). The Co-Cr master models were scanned, and the FDPs were designed and fabricated using CAD-CAM. The FDPs were cemented on the metal model and then loaded with a UTM at a crosshead speed of 1 mm/min until failure. Two-way ANOVA and Tukey's test were used for statistical analysis (α = .05).</p><p><strong>Results: </strong>Fracture loads of 3Y-TZP (2740.6 ± 469.2 and 2718.7 ± 339.0 N for size 4 × 2.25 mm and 3 × 3 mm, respectively) were significantly higher than those of 4Y-TZP (1868.3 ± 281.6 and 1663.6 ± 372.7 N, respectively) and 5Y-TZP (1588.0 ± 255.0 and 1559.1 ± 110.0 N, respectively) (<i>P</i> < .05). No significant difference was found between fracture loads of 4Y-TZP and 5Y-TZP (<i>P</i> > .05). The connector configuration within 9 mm² was found to have no effect on the fracture loads on all three types of zirconia (<i>P</i> > .05).</p><p><strong>Conclusion: </strong>Fracture loads of three-unit FDPs were affected by the type of zirconia. The fracture loads of conventional zirconia were higher than those of translucent zirconia. However, it was not affected by the connector configuration when the connector had a cross-sectional area of 9 mm².</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b6/9b/jap-15-171.PMC10471503.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10149375","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}

{"title":"Comparison of 3D accuracy of three different digital intraoral scanners in full-arch implant impressions.","authors":"Ozcan Akkal,&nbsp;Ismail Hakki Korkmaz,&nbsp;Funda Bayindir","doi":"10.4047/jap.2023.15.4.179","DOIUrl":"https://doi.org/10.4047/jap.2023.15.4.179","url":null,"abstract":"<p><strong>Purpose: </strong>This <i>in vitro</i> study aimed to evaluate the performance of digital intraoral scanners in a completely edentulous patient with angled and parallel implants.</p><p><strong>Materials and methods: </strong>A total of 6 implants were placed at angulations of 0°, 5°, 0°, 0°, 15°, and 0° in regions #36, #34, #32, #42, #44, and #46, respectively, in a completely edentulous mandibular polyurethane model. Then, the study model created by connecting a scan body on the implants was scanned using a model scanner, and a 3D reference model was obtained. Three different intraoral scanners were used for digital impressions (PS group, TR group, and CS group, n = 10 in each group). The distances and angles between the scan bodies in these measurement groups were measured.</p><p><strong>Results: </strong>While the Primescan (PS) impression group had the highest accuracy with 38 µm, the values of 104 µm and 171 µm were obtained with Trios 4 IOSs (TR) and Carestream 3600 (CS), respectively (<i>P</i> = .001). The CS scanner constituted the impression group with the highest deviation in terms of accuracy. In terms of dimensional differences in the angle parameter, a statistically significant difference was revealed among the mean deviation angle values according to the scanners (<i>P</i> < .001). While the lowest angular deviation was obtained with the PS impression group with 0.185°, the values of 0.499° and 1.250° were obtained with TR and CS, respectively. No statistically significant difference was detected among the impression groups in terms of precision values (<i>P</i> > .05).</p><p><strong>Conclusion: </strong>A statistically significant difference was found among the three digital impression groups upon comparing the impression accuracy. Implant angulation affected the impression accuracy of the digital impression groups. The most accurate impressions in terms of both distance and angle deviation were obtained with the PS impression group.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a1/bf/jap-15-179.PMC10471506.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10154698","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}

{"title":"Evaluation of bite force, quality of life, and patients' satisfaction in elderly edentulous patients using implant overdentures.","authors":"Esra Nur Avukat,&nbsp;Canan Akay,&nbsp;Emre Mumcu","doi":"10.4047/jap.2023.15.4.214","DOIUrl":"https://doi.org/10.4047/jap.2023.15.4.214","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to compare the bite force (BF) between complete dentures and implant overdentures (IODs) retained by two mandibular implants. Additionally, we evaluated the quality of life (QoL) and patient satisfaction among individuals using IODs. In addition, the effects of demographic parameters such as age and sex, and clinical parameters such as implant length, implant diameter, attachment height, attachment color, and interimplant distance on BF, QoL, and patient satisfaction were evaluated.</p><p><strong>Materials and methods: </strong>A total of 51 edentulous patients rehabilitated with the maxillary complete dentures and mandibular IODs retained by two implants were included in this study. BF was measured using a force meter pre- and post-implant in the same patients. Oral health-related quality of life (OHRQoL) was assessed with the Oral Health Impact Profile (OHIP-14) and patient satisfaction was assessed with the Visual Analog Scale (VAS) questionnaires.</p><p><strong>Results: </strong>It was found that BF values were statistically higher for IODs than complete dentures (<i>P</i> < .001). In terms of attachment height of the OHIP scores, there was a significant difference in the psychological disability and social disability domains (<i>P</i> < .05). When examining the change in patient satisfaction as a function of sex, it was found that mandibular retention satisfaction differed significantly by sex (<i>P</i> < .05), but there was no significant difference in the other domains.</p><p><strong>Conclusion: </strong>Within the limitations of this study, it was observed that the BF increased after the use of IODs. Several factors, including age, interimplant distance, attachment height, and attachment color, were found to impact OHRQoL. Sex and implant diameter were identified as factors affecting patient satisfaction.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/4c/48/jap-15-214.PMC10471504.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10149372","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}