Accuracy of Digital Impressions in Fixed Prosthodontics: A Systematic Review of Clinical Studies

Giachetti, Luca; Sarti, Chiara; Cinelli, Francesca; Russo, Daniele Scaminaci

doi:10.11607/ijp.6468

Cited by 75 publications

(63 citation statements)

References 14 publications

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“…Many studies have investigated the accuracy of full‐arch intraoral scanning but reported controversial conclusions 27 . Keul et al.…”

Section: Step 1: Accurate Impressions Of Maxillary Arches By Digital mentioning

confidence: 99%

“…26 Many studies have investigated the accuracy of full-arch intraoral scanning but reported controversial conclusions. 27 Keul et al compared the accuracy of intraoral scanners and conventional impressions in vitro relative to the in vivo environment. Within the limitations of using just one type of IOS device, the authors concluded that under optimal clinical conditions, direct scanning of the maxillary arch showed higher accuracy than indirect scanning of impressions or stone casts with a DLS.…”

Section: Step 1: Accurate Impressions Of Maxillary Arches By Digital mentioning

confidence: 99%

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Virtual Articulators and Virtual Mounting Procedures: Where Do We Stand?

Lepidi

Galli

Mastrangelo

et al. 2020

Journal of Prosthodontics

112

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A virtual articulator is a computer software tool that is capable of reproducing the relationship between the jaws and simulating jaw movement. It has gradually gained research interest in dentistry over the past decade. In prosthodontics, the virtual articulator should be considered as an additional diagnostic and treatment planning tool to the mechanical articulator, especially in complex cases involving alterations to the vertical dimension of occlusion. Numerous authors have reported on the available digital methodologies used for the assembly of virtual arch models in a virtual articulator, focusing their attention on topics such as the virtual facebow and digital occlusal registration. To correctly simulate jaw movement, the jaw models have to be digitalized and properly mounted on the virtual articulator. The aim of this review was to discuss the current knowledge surrounding the various techniques and methodologies related to virtual mounting in dentistry, and whether virtual articulators will become commonplace in clinical practice in the future. This review also traces the history of the virtual articulator up to its current state and discusses recently developed approaches and workflows for virtual mounting based on current knowledge and technological devices.

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“…Many studies have investigated the accuracy of full‐arch intraoral scanning but reported controversial conclusions 27 . Keul et al.…”

Section: Step 1: Accurate Impressions Of Maxillary Arches By Digital mentioning

confidence: 99%

Section: Step 1: Accurate Impressions Of Maxillary Arches By Digital mentioning

confidence: 99%

Virtual Articulators and Virtual Mounting Procedures: Where Do We Stand?

Lepidi

Galli

Mastrangelo

et al. 2020

Journal of Prosthodontics

112

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“…The green tea extract solution was diluted to concentrations of 0.05%, 0.2% and 2%. The initial concentration was based on the study by Zheng et al 18 and the final concentration on the study by Carvalho et al 19 . The volume of the solution (CV) was 20μl per fragment 17 , that were passively applied for 60 seconds on the conditioned dentin and the excess removed with absorbent paper, keeping the tissue moist always.…”

Section: Adhesive Proceduresmentioning

confidence: 99%

“…Regarding the stability of the bond with regards to dentin pretreatments with green tea extract, he results appear to have been contradictory. On one hand, the application of diluted green tea from commercially available tea (approximately 2% concentration) to healthy dentin 17 or even the application of green tea extract in low concentrations (0.05%-0.2%) promoted the maintenance or even increased bond strength of adhesive systems to healthy dentin 18 or caries affected dentin 19 . However, opposite results have also been found with the application of 0.2% green tea solution 20 .…”

Section: Introductionmentioning

confidence: 99%

Effect of different concentrations of green tea extract solutions on bonding durability of etch-and-rinse adhesive system to caries affected dentin

et al. 2021

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Aim: The in vitro study evaluated the effect of different concentrations of green tea extract solution (GT) on the bonding durability of etch-and-rinse adhesive system to caries dentin affected (CAD). Methods: Dentinal surfaces of human third molars were polished and submitted to a microbiological caries induction protocol for 14 days. After removal of the infected dentin layer, the samples were randomly divided into 4 groups (n= 10), according to the concentration of GT solution applied in CAD, after acid etching: 0.05%; 0.2%; 2% and NT (no treatment – control). After application of a etch-and-rinse adhesive system (Adper Single Bond 2, 3M ESPE), composite resin restorations were performed on the dentin. After 24 hours, the resin-dentin blocks were sectioned 1mm2 specimens, which were subjected to the microtensile test immediately or after 6 months of storage in water. Data were submitted to two-way ANOVA for randomized blocks and Tukey test (α= 5%). Results: There was no effect of double interaction (p= 0.934). The application of 0.2% GT promoted a statistically significant increase in dentin bond strength values in comparison to the condition where GT was not used (p=0.012). There was a significant decrease of bond strength after 6 months of storage, regardless of dentin pretreatment (p = 0.007). The G test identified that there was no statistical difference regarding failure mode (p= 0.326). Conclusion: The concentration of 0.2% improved the bond strength of an etch-and-rinse adhesive system to caries affected dentin, however, none of dentin pretreatments could prevent the decrease in bond strength over time.

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“…Recently, the use of an intraoral scanner (IOS) has rendered the process of crown fabrication possible at chairside in a short time, from scanning data acquisition to prosthetic fabrication 1–3 . However, as there is no physical cast in the chairside computer‐aided design and computer‐aided manufacturing (CAD/CAM) method, it is not possible to adjust the prosthesis on a gypsum cast outside the oral cavity 2–4 . A cast fabricated by three‐dimensional (3D) printing or milling can be used to replace the gypsum cast, but the required additional time and cost can reduce the benefits of chairside CAD/CAM 4–6 .…”

mentioning

confidence: 99%

Comparison of Intaglio Surface Adjustment in the Oral Cavity for Lithium Disilicate Crowns Fabricated Using Different Scanners

Lee

et al. 2020

Journal of Prosthodontics

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Purpose A clinical study to evaluate the intraoral adjustment of crowns fabricated using different scanners. Materials and Methods A total of 15 patients requiring single ceramic crowns were recruited. Impressions were made according to four protocols: a conventional approach and using three intraoral scanners (IOSs) (CS3600 (Carestream Dental, Atlanta, GA), i500 (Medit, Seoul, Republic of Korea), and EZIS PO (DDS, Seoul, Republic of Korea)). Four crowns per patient were fabricated using lithium disilicate ceramic. An experienced dentist performed the internal adjustment in the oral cavity. Three‐dimensional analysis was conducted using an inspection software program (Geomagic Control X; 3D Systems, Rock Hill, SC). Statistical analysis was conducted using one‐way analysis of variance and Tukey's honest significance difference tests (α = 0.05). Results A significant difference was observed in the intraoral adjustment among the conventional approach and the three IOSs (F = 213.7, p < 0.001). Crowns fabricated by conventional impressions (20.1 ± 1.4 µm) displayed better three‐dimensional conformity before and after intraoral adjustment than IOS groups (29.6 ± 4.3 µm) (p < 0.001). Conclusions Crowns fabricated using conventional impressions required fewer intraoral adjustments of the intaglio surface than those fabricated using IOSs.

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Accuracy of Digital Impressions in Fixed Prosthodontics: A Systematic Review of Clinical Studies

Cited by 75 publications

References 14 publications

Virtual Articulators and Virtual Mounting Procedures: Where Do We Stand?

Virtual Articulators and Virtual Mounting Procedures: Where Do We Stand?

Effect of different concentrations of green tea extract solutions on bonding durability of etch-and-rinse adhesive system to caries affected dentin

Comparison of Intaglio Surface Adjustment in the Oral Cavity for Lithium Disilicate Crowns Fabricated Using Different Scanners

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