European Journal of General Dentistry最新文献

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Adaptation of Relined Fiber Post Using Discontinuous Short Fiber-Reinforced Resin Composite to Restore Weakened Endodontically-Treated Premolars 不连续短纤维增强树脂复合材料修复弱根管治疗的前磨牙
European Journal of General Dentistry Pub Date : 2023-04-21 DOI: 10.1055/s-0043-57245
Dawood Salman Dawood Alshetiwi, N. A. Muttlib, H. M. El-Damanhoury, Rabihah Alawi, N. Rahman, N. Elsahn
{"title":"Adaptation of Relined Fiber Post Using Discontinuous Short Fiber-Reinforced Resin Composite to Restore Weakened Endodontically-Treated Premolars","authors":"Dawood Salman Dawood Alshetiwi, N. A. Muttlib, H. M. El-Damanhoury, Rabihah Alawi, N. Rahman, N. Elsahn","doi":"10.1055/s-0043-57245","DOIUrl":"https://doi.org/10.1055/s-0043-57245","url":null,"abstract":"Abstract Objective  This study aimed to investigate the effect of relining prefabricated fiber-reinforced composite (FRC) posts using bulk-fill, flowable, discontinuous short fiber-reinforced composite (SFRC) on intracanal adaptation in weakened endodontically-treated premolar teeth. Materials and Methods  Forty extracted human premolar teeth were selected and randomly allocated to five groups ( n  = 8) according to the canal preparation method and restorative technique after endodontic treatment: Group 1 (control): nonflared, closed apex root canals; group 2, 4: flared, open-apex root canals; group 3, 5: flared, closed apex root canals. Groups 1 to 3 were restored with standard RelyX fiber post size #1, while groups 4 and 5 were restored with customized RelyX fiber post size #1 and relined with bulk-fill flowable SFRC (everX Flow, GC, Tokyo, Japan). To evaluate intracanal adaptation, the empty root of each sample with the corresponding fiber post (standard or customized) inserted was measured twice using a micro-digital scale and the average value was calculated. The post was then removed, followed by the insertion of a light body polyvinyl siloxane (PVS) impression material into the canal, followed by reinsertion of the post and removal of excess material once the PVS was set. Finally, the sample weight was recorded, and the data were analyzed using one-way analysis of variance and the Bonferroni post hoc test ( p -value = 0.05). Results  A statistically significant difference ( p  < 0.05) in PVS material weight was identified between the groups. Group 1 (control) had the lightest weight of PVS material, followed by groups restored with customized fiber posts (groups 4 and 5) and standard fiber posts (groups 2 and 3). Conclusion  Anatomically-customized fiber posts with bulk-fill flowable SFRC provided better intracanal adaptation compared with standard fiber posts in teeth with compromised root canals.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"089 - 096"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47700843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Dimensional Optimization of Graphene-Modified Polymethyl Methacrylate Material Used as an Aesthetic Removable Partial Denture Clasp Material 石墨烯改性聚甲基丙烯酸甲酯材料美学可摘局部义齿卡环材料的尺寸优化
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0043-1768046
Mostafa Omran Hussein
{"title":"Dimensional Optimization of Graphene-Modified Polymethyl Methacrylate Material Used as an Aesthetic Removable Partial Denture Clasp Material","authors":"Mostafa Omran Hussein","doi":"10.1055/s-0043-1768046","DOIUrl":"https://doi.org/10.1055/s-0043-1768046","url":null,"abstract":"Abstract Objective  Although graphene-modified polymethyl methacrylate material is a good candidate for partial denture clasp material, it lacks adequate strength. Therefore, the study aims to assess the optimal dimension of this nanomodified material required for such an application. Materials and Methods  A parametric finite element analysis study was conducted on 54 clasp 3D models at two displacement levels (0.25–0.5 mm) placed 3 mm from the clasp tip. The clasp models were categorized based on the dimensions into A, B, and C (3 subgroups in each) and six tapers from the tip to the base (0.5–1). Both reaction force in (N) and maximum principal stress in (MPa) were recorded and analyzed. The study was validated using the mechanical tester after digital manufacturing of the clasp specimens that showed satisfactory results. Statistical Analysis  The correlations between width and thickness against reaction force and maximum principal stress were checked by a statistical analysis software package (SPSS version 22; IBM Corp., Armonk, New York, United States). Data of the reaction force demonstrated nonparametric behavior, as tested by the Kolmogorov–Smirnov test. Accordingly, Spearman's rho test for correlation was used. In contrast, the maximum principal stress data showed normal distribution, as tested by the Kolmogorov–Smirnov test. Thus, Pearson's test of correlation was applied. Results  The results demonstrated the best retention force values, considering aesthetics, in subgroups C3 (taper 0.6), C3 (taper 0.8), and B3 (taper 1). The maximum principal stress results showed the highest values in group C followed by group B and then group A. Positive correlations were calculated between thickness and width versus reaction force and maximum principal stress. The correlation coefficient value between thickness and reaction force was 0.699 and that between width and reaction force was 0.621, while the correlation coefficient between thickness and maximum principal force was 0.899 and that between the width and maximum principal force was 0.740. Conclusion  It could be concluded that the studied material might be recommended as a valid aesthetic clasp material. Both clasp thickness and width showed a positive correlation with the clasp retention force with more impact by the thickness.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"026 - 033"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45481889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Presurgical Nasoalveolar Molding—Efficacy and Biomechanics in Management of Cleft Lip and Palate: A Review of the Literature 唇腭裂术前鼻窝塑形的疗效及生物力学研究——文献综述
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0042-1760447
H. M. Alkhames, Murali Venkata Rama Mohan Kodali, E. Nasir, Mohamed Hassan, Unati Sai Kodali
{"title":"Presurgical Nasoalveolar Molding—Efficacy and Biomechanics in Management of Cleft Lip and Palate: A Review of the Literature","authors":"H. M. Alkhames, Murali Venkata Rama Mohan Kodali, E. Nasir, Mohamed Hassan, Unati Sai Kodali","doi":"10.1055/s-0042-1760447","DOIUrl":"https://doi.org/10.1055/s-0042-1760447","url":null,"abstract":"Abstract Presurgical infant orthopaedics (PSIO) appliances are used in the management of cleft lip and palate. Frequently, among all PSIO appliances utilized is presurgical nasoalveolar molding (NAM) appliance. In this review, we looked for the application of the NAM appliance, its efficacy, and biomechanics. A comprehensive search strategy was performed in two databases (Google Scholar and PubMed) for articles using NAM in the treatment plan of patients with cleft lip and palate. Six articles were included in this study with one randomized control trial, two retrospective, and three case reports studies. The studies reveal the NAM is efficient as a presurgical modality treatment for complete cleft lip and palate with multiple benefits, including reducing surgical scars and alveolar gap, used as feeding plate, improve nasal contour, and decreased the number of rectifying surgical procedure.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"007 - 013"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43868648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Knowledge and Practices of the Absolute and Relative Dental Implant Contraindications of General Dental Practitioners in Riyadh, Saudi Arabia 沙特阿拉伯利雅得普通牙科医生的绝对和相对种植体禁忌症的知识和实践
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0043-1768063
K. Ababneh, F. Farook, Tala Al Kharashi, Samar Al Arfaj, Renad I. Allahim
{"title":"The Knowledge and Practices of the Absolute and Relative Dental Implant Contraindications of General Dental Practitioners in Riyadh, Saudi Arabia","authors":"K. Ababneh, F. Farook, Tala Al Kharashi, Samar Al Arfaj, Renad I. Allahim","doi":"10.1055/s-0043-1768063","DOIUrl":"https://doi.org/10.1055/s-0043-1768063","url":null,"abstract":"Abstract Objectives  General dental practitioners (GDPs) are faced with increasing numbers of patients requesting dental implants (DI) to replace missing teeth. Being the first dental professional consulting with the patient, being knowledgeable about DI contraindications (DIC) would support the development of appropriate treatment plans. This study aimed to investigate the GDPs level of knowledge of a number of DICs. The study was done in Riyadh, KSA. Materials and Methods  A structured electronic questionnaire was distributed to GDPs who consented to participate. Participants were asked whether certain systemic and local conditions were considered DIC, and whether such DIC were considered absolute or relative. Descriptive statistics, t -tests, or one-way analysis of variance, and multiple linear regression were used for the statistical analysis ( p ≤ 0.05) to assess the association between the sample characteristics and knowledge of DICs. Results  Less than half (42%) of the respondents scored 25 to 50%, and only 2% scored 75 to 100%. The highest proportion of correct responses was related to questions regarding old age (74.09%), glycemic categories (68.52%), active chemotherapy (64.07%), and intravenous bisphosphonates (49.86%). The responses were significantly associated with the years of experience, place of graduation, and highest qualification in DI. Based on the linear regression analysis, higher years of practice were associated with less knowledge of DIC (inverse relationship), graduates of Saudi governmental universities scored higher than the other groups of graduates, and holders of a master's degree in DI scored higher compared to holders of other qualifications. In addition, respondents who received lectures and/or laboratory training as part of their undergraduate curriculum had higher scores than the group who did not. Conclusion  The level of DIC-related knowledge of the GDPs in Riyadh is generally good but incomplete; it is significantly influenced by the GDPs' years of practice, place of graduation, qualifications, and receiving didactic and laboratory training in the undergraduate programs. More emphasis on DI and DIC is required to improve treatment planning and patient referral.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"048 - 055"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44244418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In vitro Study of Temperature Changes on the Outer Root Surface of Extracted Human Teeth Under Different Parameters of Intracanal Cryotherapy 不同肛门内冷冻治疗参数下拔除人牙外根表面温度变化的体外研究
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0042-1760674
Marieta Valentinova Todorova, S. Dimitrova, P. Zagorchev
{"title":"In vitro Study of Temperature Changes on the Outer Root Surface of Extracted Human Teeth Under Different Parameters of Intracanal Cryotherapy","authors":"Marieta Valentinova Todorova, S. Dimitrova, P. Zagorchev","doi":"10.1055/s-0042-1760674","DOIUrl":"https://doi.org/10.1055/s-0042-1760674","url":null,"abstract":"Abstract Objectives  The aim of the present study is to investigate the temperature changes on the outer root surface of extracted human teeth during irrigation with different volumes of solutions at different temperatures. Materials and Methods  Thirty premolars extracted for orthodontic or periodontal indications were used for the first experiment and 12 for the second experiment. Root canals were instrumented using WaveOne Gold. Thermosensors were attached to the apical 5 mm and to the middle 5 mm of the outer root surface. Control irrigations with 0.9% NaCl, 2.5% NaOCl, and 17% EDTA at room temperature and experimental irrigations at 2.5°C with 0.9% NaCl, 2.5°C with 2.5% NaOCl, and 2.5°C with 17% EDTA were conducted. Results  During the intracanal cryotherapy, a minimum temperature more than 10°C lower than the initial temperature value was reached. There was no significant difference between the lowest temperature values reached in the irrigations carried out with the three irrigation solutions studied. These results indicate that the effect of intracanal cryotherapy can be successfully achieved using all three types of irrigation solutions, i.e., NaOCl, 0.9% NaCl, EDTA. Intracanal cryotherapy needed to last more than 2 minutes to achieve more than 10°C difference with the initial temperature. Conclusions  A total of 5 mL of irrigation solution for 5 min is insufficient to achieve a cryotherapeutic effect. A temperature difference of 10°C between initial and lowest temperatures recorded was reached fastest at a volume of 20 mL.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"014 - 019"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45535015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Pattern in the Utilization of the First-Choice Antibiotic among Dentists in the Republic of Kosovo: A Prospective Study 科索沃共和国牙医首选抗生素使用模式:一项前瞻性研究
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0043-1768064
Lirim Mustafa, H. Islami, I. Šutej
{"title":"The Pattern in the Utilization of the First-Choice Antibiotic among Dentists in the Republic of Kosovo: A Prospective Study","authors":"Lirim Mustafa, H. Islami, I. Šutej","doi":"10.1055/s-0043-1768064","DOIUrl":"https://doi.org/10.1055/s-0043-1768064","url":null,"abstract":"Abstract Objective  Antibiotics are prescribed by dentists during dental treatments, depending on the diagnosis and severity of the disease. Appropriate indicators of the benefit of systematic and regular use of antibiotics in dentistry are limited, because a large number of dental and periodontal problems can be treated either by surgical intervention or by maintaining good oral hygiene. Improper use of antibiotics leads to antimicrobial resistance. In Kosovo, this problem is very evident and more studies are required to identify antibiotic prescribing patterns by health care workers. In this context, this study aims to investigate the issue of antibiotic use in dentistry. Materials and Methods  This prospective study was conducted for 6 months and followed the dental practice of 80 dentists. Data were collected from 795 patient forms. Results  After analysis, results showed that amoxicillin with clavulanic acid and amoxicillin alone were the most commonly prescribed antibiotics, each accounting for 35%. The most common indications for antibiotic prescription were dental and periodontal abscesses (24.9%), while 20.7% of antibiotics were prescribed for postextraction healing, pericoronitis (15%), chronic periodontitis (12.8%), and dry socket (11.5%). Conclusion  These results suggest that the problem of inappropriate antibiotic prescribing is not only overprescribing but also the selection of inappropriate agents, especially amoxicillin with clavulanic acid, instead of amoxicillin alone.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"056 - 060"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41754402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Magnesium Oxide Nanoparticles in Dentistry: A Literature Review 氧化镁纳米颗粒在牙科中的应用:文献综述
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0042-1760673
S. Sharifian, A. Loghmani, Shiva Nayyerain, Sanazgoli Javanbakht, Pouria Daneii
{"title":"Application of Magnesium Oxide Nanoparticles in Dentistry: A Literature Review","authors":"S. Sharifian, A. Loghmani, Shiva Nayyerain, Sanazgoli Javanbakht, Pouria Daneii","doi":"10.1055/s-0042-1760673","DOIUrl":"https://doi.org/10.1055/s-0042-1760673","url":null,"abstract":"Abstract Magnesium oxide (MgO) nanoparticles' biocompatibility and degraded by-products are the two most important factors that make this material preferable in dental care. Their specific characteristics, such as antibacterial action against cariogenic microbes, are potential antibacterial agents for dental applications. This paper investigates the properties of MgO in dentistry and sets the groundwork for future research. Electronic databases, including PubMed/Medline, Scopus, Google Scholar, and scientific-research journals of domestic universities were reviewed from 1972 to 2022, and all the relevant papers were surveyed. After a search in electronic databases, 60 articles were involved, and the needed details were extracted. The biochemical features and application of magnesium oxide nanoparticles (MgONPs) in dentistry and new fields have been discussed in detail. Nanoparticles (NPs) may provide a unique method for treating and preventing dental infections. MgO nanoparticles are a good choice in several fields because their unique properties, such as antibacterial activity against cariogenic microorganisms, make them ideal antibacterial agents for dental applications.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"001 - 006"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43697308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Restorative Treatment Considerations for Black Triangle: A Case Series 黑三角的恢复性治疗:一个病例系列
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0043-1768047
H. M. Yusof, Nur Ayman Abdul Hayei
{"title":"Restorative Treatment Considerations for Black Triangle: A Case Series","authors":"H. M. Yusof, Nur Ayman Abdul Hayei","doi":"10.1055/s-0043-1768047","DOIUrl":"https://doi.org/10.1055/s-0043-1768047","url":null,"abstract":"Abstract The interdental papilla is of utmost importance in smile aesthetics. Missing interdental tissue often raises an aesthetic concern; however, the issue is more than just an aesthetic complication. This study reviews the most commonly seen cases and methods to minimize the aesthetic complications caused by missing interdental tissue. The technique that will be discussed is from nonsurgical techniques, including composite restoration, indirect restorations, and gingival veneer. This article is clinically relevant in educating clinicians on various methods to restore and improve the optics that arise from a missing interdental papilla.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"061 - 066"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47093141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Teledentistry: An Appraisal of Google Play Store Applications 电视医学:b谷歌Play Store应用评估
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0043-1761931
Hasan Mujtaba, Muhammad Farooq Umer, Eman Afroze, F. Chaudhary, Shumaila Zofeen, Awais Farid
{"title":"Teledentistry: An Appraisal of Google Play Store Applications","authors":"Hasan Mujtaba, Muhammad Farooq Umer, Eman Afroze, F. Chaudhary, Shumaila Zofeen, Awais Farid","doi":"10.1055/s-0043-1761931","DOIUrl":"https://doi.org/10.1055/s-0043-1761931","url":null,"abstract":"Abstract Objectives  M-health technology facilitates and equips us with the required medical-related information and knowledge. This research work aims to provide an overview of m-health apps related to dentistry on the Google Play Store. Materials and Methods  This widely used official smartphone platform was screened for the most widely available apps by putting the Medical Subject Headings (MeSH) and keywords “teledentistry, dentistry, and dental” and the resultant apps were evaluated for the number of downloads, ratings, release date, and number of reviews. Results  The apps were categorized depending upon their applicability into different subgroups, which include patient education apps, dentist appointment apps, kid's apps, undergraduate apps, graduates and general dentist apps, postgraduate dentist apps, commercial and social networking apps, and other miscellaneous apps. The engagement of the users was evaluated in all the categories and the applicability of apps in respective categories was evaluated. The study concluded that despite plentiful apps in each category, the engagement of individuals with the m-health apps related to dentistry is relatively low. However, few creative apps in each category showed bright prospects for productivity and engagement. Conclusion  Centralization and appropriately supervised apps with quality information by some official health care platforms can enhance the effectiveness and prepare this platform for the future of dentistry in the world of semantic web and blockchain.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"020 - 025"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47389033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of Horizontal Resolution of Printer on Trueness of 3D-Printed Provisional Crown: An In Vitro Study 打印机水平分辨率对3d打印临时冠真实性影响的体外研究
European Journal of General Dentistry Pub Date : 2023-01-01 DOI: 10.1055/s-0043-1764478
Pham Nhu Hai, T. M. Son, Nguyen Viet Anh, V. Ngoc, N. T. Tra
{"title":"Effect of Horizontal Resolution of Printer on Trueness of 3D-Printed Provisional Crown: An In Vitro Study","authors":"Pham Nhu Hai, T. M. Son, Nguyen Viet Anh, V. Ngoc, N. T. Tra","doi":"10.1055/s-0043-1764478","DOIUrl":"https://doi.org/10.1055/s-0043-1764478","url":null,"abstract":"Abstract Objectives  Provisional crowns play an integral role in prosthodontic therapy and need to be fabricated with high accuracy to ensure good marginal fit and proper contour. The aim of this study is to evaluate the effect of 3D printer's horizontal pixel resolution on trueness of the intaglio surface, external surface, and marginal area and the actual marginal adaptation of the interim crowns. Materials and Methods  A gypsum reference model of mandible with a prepared right first molar was scanned with a dental laboratory scanner (AutoScan-DS-MIX, Shining 3D) and a digital provisional crown was design using the computer-aided design (CAD) software (Exocad). The provisional crown was manufactured by two printers with different horizontal resolutions (Sonic Mini 4K Printer and Sonic Mini 8K Printer). The printed crowns were scanned using the aforementioned scanner. The trueness of the external surface, internal surface, and marginal area of the provisional crowns was evaluated by comparing the scanned data with the reference CAD design data using a 3D inspection software (Geomagic Control X, 3D systems). The trueness of the crown manufactured by two printers was compared by a two-sided test ( α  = 0.05). Finally, the marginal adaptation of the provisional crowns was evaluated on the printed removable dies and compared. Results  The results revealed that there was a significant difference in the trueness of the marginal area and the marginal adaptation ( p  < 0.05). Conclusions  It can be concluded that the trueness of provisional crown marginal area and the marginal adaptation was affected by the horizontal resolution of the 3D printer.","PeriodicalId":37771,"journal":{"name":"European Journal of General Dentistry","volume":"12 1","pages":"034 - 041"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49128942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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