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Influence of resin composite cement on the final color of fixed rehabilitation
Published in J. Belinha, R.M. Natal Jorge, J.C. Reis Campos, Mário A.P. Vaz, João Manuel, R.S. Tavares, Biodental Engineering V, 2019
Joana F. Piloto, Claudia A.M. Volpato, Paulo Rocha, Paulo Júlio Almeida, César Silva, Paula Vaz
The space between an indirect fixed restoration and the tooth is commonly filled with a cementing agent. Alluding to the type of adhesion, this material can be classified as adhesive, non-adhesive (mechanical) or micro-mechanics cement. The fixed prosthodontics longevity depends on the right selection of the cement, according to the function and desired properties. The main functions include retention, resistance to restoration and tooth, and marginal adaptation (Garcia, 2014).
Virtual diespacing—Everest® (Kavo®) system evaluation
Published in R.M. Natal Jorge, J.C. Reis Campos, Mário A.P. Vaz, Sónia M. Santos, João Manuel R.S. Tavares, Biodental Engineering IV, 2017
P. Rocha-Almeida, J.C. Reis Campos, T. Coutinho Almeida, P. Vaz, C. Silva, J.C. Sampaio-Fernandes
Fixed prosthodontics rehabilitation success is closely related to the restoration retention. The latter may be influenced by several factors, such as the selected cement and the spacing between the restoration and the infrastructure. The spacing is defined as a dimension between the abutment and the prosthesis (infrastructure), being of major importance for the complete restoration seating, the marginal adaptation and the flow of excess cement (Vermilyea et al. 1983, Carter et al. 1996, Melo Freire et al. 2016).
Marginal and internal fit of crowns based on additive or subtractive manufacturing
Published in Biomaterial Investigations in Dentistry, 2021
Yasser Haddadi, Bahram Ranjkesh, Flemming Isidor, Golnosh Bahrami
The field of AM in fixed prosthodontics is new and, to a large extent, unexplored. Variations in methodologies, software, printing parameters, and hardware in the current published articles make direct comparison difficult. The results of this study are, however, comparable with those of other studies evaluating the accuracy of AM crowns. Harbi et al. [27] and Bae et al. [15] found marginal and internal fits that were significantly better for AM crowns compared to SM crowns. Yet both were, as with our results, within the reported range for CAD-CAM crowns. Peng et al. [28] studied the overall internal fit of interim crowns manufactured using AM and SM. In the AM group, the same resin material as in the current study was used, but in a different printer. They found no statistically significant difference between the two groups. Mahmood et al. [29] also conducted an in vitro study comparing the accuracy of AM and SM crowns and they also had a conventional manufacturing group. They used the replica technique to assess the marginal and internal fit of the crowns. They concluded that the fit of digitally manufactured crowns was superior to crowns manufactured by the conventional method, and of the digital methods, the AM technique was more accurate than the SM technique.
Assessment of cytotoxic and genotoxic effects of conventional and whitening kinds of toothpaste on oral mucosa cells
Published in Acta Odontologica Scandinavica, 2018
Antonija Tadin, Lidia Gavic, Ana Zeravica, Klara Ugrin, Nada Galic, Davor Zeljezic
Each participant filled out a questionnaire regarding their demographic characteristics (age, gender), lifestyle factors (smoking, alcohol consumption), personal factors (health status, use of medication, X-ray diagnostics), and dietary aspects. Individuals who smoked three or more cigarettes per day for at least 1 year were considered to be smokers. Persons who reported consumption of two or more units of alcohol three or more times a week were excluded from the study. Patients with oral lesions and a history of chronic health conditions were also excluded from the study, as well as those who had been exposed to materials used in orthodontics or removable and fixed prosthodontics [9].
Creating a test blueprint for a progress testing program: A paired-comparisons approach
Published in Medical Teacher, 2018
HsingChi von Bergmann, Ruth A. Childs
For Practice Domains, the initial list was (in alphabetical order): Complete Removable Prosthodontics, Dental Public Health, Endodontics, Fixed Prosthodontics, Operative Dentistry, Oral Radiology, Oral Surgery, Oral Medicine and Pathology, Orthodontics, Partial Removable Prosthodontics, Periodontics, and Pediatric Dentistry.