Prosthodontics dental materials: From conventional to unconventional

Fatima, Sana; Muhammad, Nawshad; Khan, Abdul Samad; Sharif, Faiza; Rahim, Abdur; Ahmad, Pervaiz; Irfan, Masooma

doi:10.1016/j.msec.2019.110167

Cited by 70 publications

(54 citation statements)

References 133 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Considering the maximum value of gap as adequate (less than 120 μm, as suggested by McLean and Fraunhofer, the results obtained by Mounajjed et al were analyzed since it is used as a parameter in several studies (IND: 192.26 μm; DIR: 139.55 μm). The marginal vertical after crystallization of the DIR group (139.04 μm) presented higher values.…”

Section: Discussionmentioning

confidence: 99%

Adaptation accuracy of milled lithium disilicate crowns: A 2D and 3D microCT analysis

Freitas

Tonin

Macedo

et al. 2020

J Esthet Restor Dent

View full text Add to dashboard Cite

Objective: Evaluate the effects of the scanning techniques and the crystallization in the internal and marginal adaptation of milled lithium disilicate crowns by two techniques computer microtomography analysis. Materials and Methods:Sixteen polyurethane teeth prepared for a complete crown were divided into two groups according to the scanner method (n = 8): indirect (IND), dental stone models were scanned with laser-surface scanner, and direct (DIR), digital typodont creates with an intraoral scanner. Internal and marginal gap were evaluated by micro-computed tomography (microCT). The replica technique (RT) was applied for analysis of total volume (TV) and marginal volume (MV) gap in microCT. The data showed normal distribution (Shapiro-Wilk test). One-way ANOVA (scanner techniques) with repeated measures (crystallization) was performed. Multiple comparisons were performed with Bonferroni adjustment (α = .05). Results:The axial gap showed a significant difference between the times (P = .017) for lower values after crystallization. The vertical marginal gap presented a significant difference in times for higher value after crystallization (P = .001). The marginal horizontal gap IND was greater than DIR after crystallization (P = .001) and IND before lower than after crystallization. For TV was not significant difference and MV in DIR was reduction (P = .002) after crystallization. Conclusion: Crystallization changes the relationship between the crown and tooth, reducing internal gap and preventing the adequate fit in indirect and direct scanning. Clinical Significance: The measure gap under technological methodology is useful for adjust clinical parameters prosthetic in the CAD/CAM and the applicability of the new possibilities of analysis.

show abstract

Section: Discussionmentioning

confidence: 99%

Adaptation accuracy of milled lithium disilicate crowns: A 2D and 3D microCT analysis

Freitas

Tonin

Macedo

et al. 2020

J Esthet Restor Dent

View full text Add to dashboard Cite

show abstract

“…However, after setting, these materials become hard with low elasticity, which makes them unsuitable for patients with bad periodontal condition, loose remaining teeth, or deep undercuts 26 . On the contrary, irreversible hydrocolloid can be easily removed from deep undercuts due to its flexibility 29 . Moreover, it has been suggested that alginate could substitute elastomeric impression materials in the fabrication of Co‐Cr partial removable dental prostheses framework 30 .…”

Section: Discussionmentioning

confidence: 99%

Digital Workflow for a Scleroderma Patient with Microstomia: A Clinical Report

Zhang

Mao

et al. 2021

Journal of Prosthodontics

View full text Add to dashboard Cite

Making impressions in patients with microstomia is often rather problematic due to their restricted mouth opening. Herein, this report describes a novel digital workflow for making impressions with computer‐aided design and computer‐aided manufacturing (CAD/CAM) custom sectional trays for a 58‐year‐old female patient with scleroderma and microstomia. CAD/CAM custom sectional trays were made based on digital dentition models from another case with similar arch scale. After the sectional impressions were obtained, the sectional casts were scanned and digitally aligned to form the final dentition models. The removable partial dentures were designed on the final digital models and printed using a 3D printer. This procedure was executed with a successful prosthetic outcome that included good fit and acceptable esthetics. The patient also reported a high level of satisfaction.

show abstract

“…[145][146][147][148] It has been used as an essential part of prosthodontics practice since 1937. 143 The thermal and mechanical properties of the PMMA composites were improved with the ller of ZnO NPs. 149 The major drawback of this material is easy accumulation of denture plaque on its surface due to properties such as surface roughness and apparent porosity.…”

Section: Prosthodonticsmentioning

confidence: 99%