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Hsu KL, Balhaddad AA, Martini Garcia I, Collares FM, Dhar V, DePaola L, Melo MA. 3D cone-beam C.T. imaging used to determine the effect of disinfection protocols on the dimensional stability of full arch impressions. Saudi Dent J 2021; 33:453-461. [PMID: 34803286 PMCID: PMC8589573 DOI: 10.1016/j.sdentj.2020.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 11/12/2020] [Accepted: 12/01/2020] [Indexed: 11/23/2022] Open
Abstract
Cone-beam computed tomography assessed the dimensional stability of impressions. The two common impression materials: alginate or polyvinylsiloxane were evaluated. Five commercial disinfectant agents were tested on materials’ stability. All disinfectant agents did not affect materials’ stability.
Aim This study aimed to investigate the dimensional stability of irreversible hydrocolloid and polyvinylsiloxane (P.V.S.) impressions after exposure to four commercial disinfectants using cone-beam computed tomography (CBCT). Materials and Methods Two different impression materials were tested: irreversible hydrocolloid and P.V.S. Four disinfection solutions were applied: BirexSE, Opti-Cide3, COEfect MinuteSpray, and CaviCide Spray. Distilled water was used as a control group. Each solution remained in contact with the impression for 5 min. Additional contact time of 5 min compromises time for scanning. The materials were evaluated for dimensional stability after the impression of a maxillary complete edentulous template via CBCT before and after being in contact with the disinfectant agents. Measurements were assessed on the digital models from A-B, B-C, and C-A points. Paired analyses (Wilcoxon Signed Rank test or paired Student's t-test) were used to analyze each measurement before and after the contact with the disinfectant agents. The variance for each measurement was also analyzed via a one-way analysis of variance or Kruskal-Wallis. Results Overall, there were no statistical differences among the points measurements in the irreversible hydrocolloid or P.V.S. between initial and final assessments (p > 0.05). The used disinfectant agents in this study did not influence each measurement's variation on irreversible hydrocolloid or P.V.S. (p > 0.05). All agents showed an effect on the dimensional stability of both impression materials. The differences in the three dimensions ranged between 0.34 and 1.54%. Conclusion Within 10 min of removing the impression from the master cast, is study's findings indicated that the four commercially available disinfectants did not influence the dimensional stability of irreversible hydrocolloid or P.V.S. Further studies should be performed to elucidate the antimicrobial effect of these solutions applied as a spray on the surface of irreversible hydrocolloid and P.V.S. impressions.
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Affiliation(s)
- Kuei-Ling Hsu
- University of Maryland School of Dentistry, Baltimore, MD 21201, USA.,Department of Orthodontics and Pediatric Dentistry, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Abdulrahman A Balhaddad
- University of Maryland School of Dentistry, Baltimore, MD 21201, USA.,Department of Restorative Dental Sciences, Imam Abdulrahman Bin Faisal University, College of Dentistry, Dammam, Saudi Arabia
| | - Isadora Martini Garcia
- University of Maryland School of Dentistry, Baltimore, MD 21201, USA.,Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre 90035-003, RS, Brazil
| | - Fabrício Mezzomo Collares
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre 90035-003, RS, Brazil
| | - Vineet Dhar
- Department of Orthodontics and Pediatric Dentistry, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Louis DePaola
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Mary Anne Melo
- University of Maryland School of Dentistry, Baltimore, MD 21201, USA.,Division of Operative Dentistry, Department of General Dentistry, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
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Bitencourt SB, Catanoze IA, Silva EVFD, Turcio KHL, Santos DMD, Brandini DA, Goiato MC, Guiotti AM. Extended-pour and conventional alginates: effect of storage time on dimensional accuracy and maintenance of details. Dental Press J Orthod 2021; 26:e2119251. [PMID: 34231832 PMCID: PMC8279116 DOI: 10.1590/2177-6709.26.3.e2119251.oar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 01/11/2020] [Indexed: 11/22/2022] Open
Abstract
Objective: This study aimed to evaluate the dimensional stability and maintenance of details of conventional and high stability alginates up to 5-day storage. Methods: Two types of alginates were selected (n=10) for this study, conventional (Hydrogum) and high stability alginates (Hydrogum 5), which were produced with the aid of a cylindrical metal block and a ring-shaped metal mold (Specifications 18, 19, and 25, ANSI/ADA). Ten images were obtained from the molds for the dimensional stability test, which were taken immediately after their production and at each different storage periods (15 min, 24 h, 48 h, 72 h, 96 h, and 120 h) by a digital camera. The specimens were kept hermetically sealed in plastic bags (23°C) and then used to obtain 140 (n=70) dental stone models, used in the detail reproduction test, in which the angular accuracy of three grooves (20 µm, 50 µm, and 75 µm) was observed at each period. The details reproduction accuracy was classified using a predetermined score classification. Measurements of dimensional changes were made in the Corel DRAW X6 program. The data were submitted to the Student’s t-test (α?#8197;= 0.05). Results: A statistically significant difference concerning the size of the matrix was observed after 24h for both alginates, and a statistically significant negative linear dimensional change (contraction) was verified after 24 h of storage (1.52% for the high stability alginate, and 1.32% for the conventional alginate). The high stability alginate kept the full details for 72 hours, while the conventional alginate, for 24 h. Both alginates reproduced the 75 µm groove at all storage periods. Conclusion: Impressions made with both alginates presented satisfactory clinical results when the alginates were immediately poured.
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Affiliation(s)
- Sandro Basso Bitencourt
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
| | - Isabela Araguê Catanoze
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
| | - Emily Vivianne Freitas da Silva
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
| | - Karina Helga Leal Turcio
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
| | - Daniela Micheline Dos Santos
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
| | - Daniela Atili Brandini
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada (São Paulo/SP, Brazil)
| | - Marcelo Coelho Goiato
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
| | - Aimée Maria Guiotti
- Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Materiais Odontológicos e Prótese (São Paulo/SP, Brazil)
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CALMON JDQ, RELVAS A, LEFRANÇOIS M, AZEVEDO MV, SOTELO P, SOTELO L. Estabilidade dimensional de moldes obtidos com alginato de armazenamento tardio. REVISTA DE ODONTOLOGIA DA UNESP 2019. [DOI: 10.1590/1807-2577.09819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Introdução Recentemente, vêm surgindo no mercado alguns alginatos de armazenamento prolongado. Não há, no entanto, um consenso na literatura a respeito da estabilidade dimensional destes materiais durante este armazenamento Objetivo Avaliar, por meio de método prático experimental, a estabilidade dimensional de um alginato de armazenamento tardio. Material e método O material de moldagem utilizado foi o alginato Hydrogum 5 (Zhermack). Uma matriz metálica cilíndrica foi utilizada para a realização das moldagens, com 38 mm de diâmetro externo, 30 mm de diâmetro interno e cuja superfície superior apresenta três linhas paralelas entre si com 25 mm de comprimento e 20, 50 e 75 µm de largura. Após o tempo de geleificação do material de moldagem, 16 moldes foram colocados em um umidificador e essas amostras foram fotografadas utilizando-se uma câmera digital (Canon EOS Rebel 3Ti, Canon) associada a um software para análise das imagens obtidas (ImageJ 1.52a, U.S. National Institutes of Health; DI). A calibragem da régua foi 10 cm e, posteriormente, três linhas foram medidas três vezes, para se obter uma média dos comprimentos das linhas. As amostras foram fotografadas nos seguintes intervalos: imediatamente, 24, 48, 72, 96 e 120 horas. Resultado Os dados mostraram diferenças estatisticamente significantes para o fator tempo quando comparada a leitura imediata com os demais períodos de tempo de leitura (p<0,001) e quando comparada a leitura após 24 h de armazenagem com os demais períodos de tempo (p<0,001). Não houve diferença estatística (p>0,05) quando os tempos de armazenamento de 48 h, 72 h, 96 h e 120 h foram comparados entre si. Todos os valores encontravam-se dentro dos valores preconizados pela ISO 21563:2013. Conclusão Os moldes dos alginatos testados podem ser armazenados por até cinco dias em 100% de umidade relativa.
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Berrendero S, Salido MP, Ferreiroa A, Valverde A, Pradíes G. Comparative study of all-ceramic crowns obtained from conventional and digital impressions: clinical findings. Clin Oral Investig 2018; 23:1745-1751. [DOI: 10.1007/s00784-018-2606-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 08/22/2018] [Indexed: 11/28/2022]
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Kusugal P, Chourasiya RS, Ruttonji Z, Astagi P, Nayak AK, Patil A. Surface Detail Reproduction and Dimensional Stability of Contemporary Irreversible Hydrocolloid Alternatives after Immediate and Delayed Pouring. Contemp Clin Dent 2018; 9:20-25. [PMID: 29599578 PMCID: PMC5863403 DOI: 10.4103/ccd.ccd_676_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Purpose To overcome the poor dimensional stability of irreversible hydrocolloids, alternative materials were introduced. The dimensional changes of these alternatives after delayed pouring are not well studied and documented in the literature. The purpose of the study is to evaluate and compare the surface detail reproduction and dimensional stability of two irreversible hydrocolloid alternatives with an extended-pour irreversible hydrocolloid at different time intervals. Materials and Methods All testing were performed according to the ANSI/ADA specification number 18 for surface detail reproduction and specification number 19 for dimensional change. The test materials used in this study were newer irreversible hydrocolloid alternatives such as AlgiNot FS, Algin-X Ultra FS, and Kromopan 100 which is an extended pour irreversible hydrocolloid as control. The surface detail reproduction was evaluated using stereomicroscope. The dimensional change after storage period of 1 h, 24 h, and 120 h was assessed and compared between the test materials and control. The data were analyzed using one-way ANOVA and post hoc Bonferroni test. Results Statistically significant results (P < 0.001) were seen when mean scores of the tested materials were compared with respect to reproduction of 22 μm line from the metal block. Kromopan 100 showed statistically significant differences between different time intervals (P < 0.001) and exhibited more dimensional change. Algin-X Ultra FS proved to be more accurate and dimensionally stable. Conclusions Newer irreversible hydrocolloid alternative impression materials were more accurate in surface detail reproduction and exhibited minimal dimensional change after storage period of 1 h, 24 h, and 120 h than extended-pour irreversible hydrocolloid impression material.
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Affiliation(s)
- Preethi Kusugal
- Department of Prosthodontics, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belagavi, India
| | | | - Zarir Ruttonji
- Department of Prosthodontics, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belagavi, India
| | - Preeti Astagi
- Department of Prosthodontics, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belagavi, India
| | - Ajay Kumar Nayak
- Department of Prosthodontics, Maratha Mandal's Nathajirao G. Halgekar Institute of Dental Sciences and Research Centre, Belagavi, India
| | - Abhishekha Patil
- Senior Dental Health Officer, Government Taluka General Hospital, Deodurga, Raichur District, Karnataka, India
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Rilo B, Lago L, Fernández N, DaSilva L. Implant Impression for Full-Banded Orthodontic Patient. J ORAL IMPLANTOL 2016; 42:292-3. [DOI: 10.1563/aaid-joi-d-14-00285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Benito Rilo
- Department of Prosthodontics, Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Laura Lago
- Department of Prosthodontics, Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Noelia Fernández
- Department of Prosthodontics, Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Luis DaSilva
- Department of Prosthodontics, Faculty of Medicine and Dentistry, University of Santiago de Compostela, Santiago de Compostela, Spain
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Gjelvold B, Chrcanovic BR, Korduner EK, Collin-Bagewitz I, Kisch J. Intraoral Digital Impression Technique Compared to Conventional Impression Technique. A Randomized Clinical Trial. J Prosthodont 2015; 25:282-7. [PMID: 26618259 DOI: 10.1111/jopr.12410] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2014] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To compare digital and conventional impression techniques in a randomized clinical trial; specifically, procedure times, patient-centered outcomes, and clinical evaluation of the restorations. MATERIALS AND METHODS Forty-two patients in need of tooth-supported single crowns and/or fixed partial prostheses up to six units were randomly allocated to one of the impression techniques. The procedure times, dentists' and patients' assessments using a visual analog scale (VAS), and clinical evaluation of the restorations were compared between the two groups. RESULTS The mean total procedure times for digital and conventional impression technique were 14:33 ± 5:27 and 20:42 ± 5:42, respectively (p < 0.0001). Mean impression times were 7:33 ± 3.37 and 11:33 ± 1.56, respectively (p < 0.0001). Mean VAS scores for the dentist's assessment of difficulty (0 to 100; very difficult = 100) were 24.00 ± 18.02 and 48.02 ± 21.21, respectively (p < 0.0001). Mean VAS scores for the patients' assessment of discomfort (0 to 100; very discomforting = 100) was 6.50 ± 5.87 and 44.86 ± 27.13, respectively (p < 0.0001). Occlusal contacts showed a better result for the digital technique. CONCLUSION The results of this study demonstrated that the digital technique was more efficient and convenient than the conventional impression technique.
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Affiliation(s)
- Björn Gjelvold
- Folktandvården Skåne AB-Centre of Dental Specialist Care Malmö, Malmö, Sweden
| | | | - Eva-Karin Korduner
- Folktandvården Skåne AB-Centre of Dental Specialist Care Malmö, Malmö, Sweden
| | | | - Jenö Kisch
- Folktandvården Skåne AB-Centre of Dental Specialist Care Malmö, Malmö, Sweden
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RUDOLPH H, GRAF MRS, KUHN K, RUPF-KÖHLER S, EIRICH A, EDELMANN C, QUAAS S, LUTHARDT RG. Performance of dental impression materials: Benchmarking of materials and techniques by three-dimensional analysis. Dent Mater J 2015; 34:572-84. [DOI: 10.4012/dmj.2014-197] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Heike RUDOLPH
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University
| | | | - Katharina KUHN
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University
| | | | - Alfred EIRICH
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University
| | - Cornelia EDELMANN
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University
| | | | - Ralph G. LUTHARDT
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University
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