Time‐efficiency analysis of the treatment with monolithic implant crowns in a digital workflow: a randomized controlled trial

Joda, Tim; Brägger, Urs

doi:10.1111/clr.12753

Cited by 105 publications

(163 citation statements)

References 17 publications

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“…The conventional physical impression with trays and materials (alginates, silicones, polyethers) represents a moment of discomfort for the patient [16,17]; this is particularly the case with sensitive subjects, for example those with a strong gag reflex [16]. In addition, it can be difficult for the clinician, especially in the case of technically complex impressions (for example the fabrication of a long-span implant-supported reconstruction) [12,14].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, it can be difficult for the clinician, especially in the case of technically complex impressions (for example the fabrication of a long-span implant-supported reconstruction) [12,14]. The optical impression with Intraoral Scanners (IOS) solves all these problems: it is well-tolerated by the patient, since it does not require the use of conventional materials, and is technically easier for the clinician [16,17,18,19,20,21,22]. The use of an intra oral scanner allows an immediate determination of the impression quality; virtual three-dimensional (3D) models of patients are obtained, which can be saved on a computer without physically pouring a plaster model [19,20,21,22,23].…”

Section: Introductionmentioning

confidence: 99%

“…The use of an intra oral scanner allows an immediate determination of the impression quality; virtual three-dimensional (3D) models of patients are obtained, which can be saved on a computer without physically pouring a plaster model [19,20,21,22,23]. This saves time and space, and provides the ability to easily send the models to the laboratory using e-mail, reducing time and costs [16,17]. The clinician can save money each year on the purchase of impression materials, the fabrication of individual trays, and on the casting and shipping of plaster models, since it is possible to store virtual models of patients without having to allocate a space within the clinic [16,17,18,19,20,21,22,23].…”

Section: Introductionmentioning

confidence: 99%

“…This saves time and space, and provides the ability to easily send the models to the laboratory using e-mail, reducing time and costs [16,17]. The clinician can save money each year on the purchase of impression materials, the fabrication of individual trays, and on the casting and shipping of plaster models, since it is possible to store virtual models of patients without having to allocate a space within the clinic [16,17,18,19,20,21,22,23]. Not least, the clinician can have a powerful marketing tool for more effective communication with the patient [16,17].…”

Section: Introductionmentioning

confidence: 99%

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Accuracy of Implant Casts Generated with Conventional and Digital Impressions—An In Vitro Study

Ribeiro

Herrero-Climent

Díaz-Castro

et al. 2018

IJERPH

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Purpose: The aim of this study was to compare the accuracy of digital dental impressions with the accuracy of impressions obtained via conventional techniques. Methods: Two different master models were created, one with parallel implants (model 1) and the other with non-parallel implants (model 2). These reference master models included 4 Klockner KL RP implants (Klockner Implant System SA, Barcelona, Spain), which were juxta-placed and equidistant in the intermentoneal region. In model 1 the implants were placed parallel to each other, whereas in model 2 the implants were placed such that there was a divergence angle of 15° between the more distal implants, and a convergence angle of 15° between the two central implants. A total of four types of impressions were obtained from model 1 (four groups, n = 10 each), including closed tray impressions with replacement abutments; open tray impression groups for dragging copings, without splinting; open tray impressions for ferrules; and impressions obtained using the 3MTM True Definition Scanner system. For model 2 three groups were created (three groups, n = 10 each), including closed tray impressions with replacement abutments; open tray impression for dragging copings, without splinting; and impressions obtained using the 3MTM True Definition Scanner system. The master models and the models obtained using conventional methods were digitalized in order to compare them via an extraoral high-resolution scanner (Imetric IScan D104i, Porretruy, Switzerland). The STL (Stereo Lithography (format for transferring 3 dimensional shape information)) digital values were loaded into reverse-engineering software and superimposed with their respective STL master models in order to evaluate deviations in three dimensions. We then analyzed the squares of the deviations in the three axes and evaluated the median and the sum of the deviation square. Statistical analysis was performed using the IBM Corp. Released 2016. IBM SPSS Statistics for Windows, Version 24.0. Armonk, NY: IBM Corp. The normality of the distributions was analyzed according to a Kolmogorov-Smirnov test. The median comparison was performed using the differences between the medians, analyzed using non-parametric Kruskal-Wallis and Mann-Whitney tests with a significance level of p < 0.05. Results: For model 1, the deviations of the digital impressions were smaller than those associated with the conventional techniques. The sum value in group D was 1,068,292, which was significantly lower than those of groups A, B, and C, which were shown to be 2,114,342, 2,165,491, and 1,265,918, respectively. This improvement was not observed when using model 2, however, where the conventional techniques yielded similar results. Group F simultaneously presented the lowest total square sum of the three deviations (1,257,835), indicating a significantly higher accuracy for this group in model 2, while the sum values were 1,660,975 and 1,489,328 for groups E and G, respectively. Conclusion: Digital impressions of full-arch models were abl...

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Accuracy of Implant Casts Generated with Conventional and Digital Impressions—An In Vitro Study

Ribeiro

Herrero-Climent

Díaz-Castro

et al. 2018

IJERPH

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show abstract

“…1,2 With such technical progress, implant prosthodontic procedures are becoming faster, more time-efficient, 3 and less costly. 6,7 The new techniques will require development of new training methods and adaptation of existing treatment protocols. 5 Only by implementing IOS in the clinical workflow will it be possible to perform complete treatments digitally.…”

mentioning

confidence: 99%

Dental Students’ Perceptions of Digital and Conventional Impression Techniques: A Randomized Controlled Trial

Zitzmann

Kovaltschuk

Lenherr

et al. 2017

Journal of Dental Education

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The aim of this randomized controlled trial was to analyze inexperienced dental students' perceptions of the difficulty and applicability of digital and conventional implant impressions and their preferences including performance. Fifty undergraduate dental students at a dental school in Switzerland were randomly divided into two groups (2×25). Group A first took digital impressions in a standardized phantom model and then conventional impressions, while the procedures were reversed for Group B. Participants were asked to complete a VAS questionnaire (0-100) on the level of difficulty and applicability (user/patient-friendliness) of both techniques. They were asked which technique they preferred and perceived to be more efficient. A quotient of "effective scan time per software-recorded time" (TRIOS) was calculated as an objective quality indicator for intraoral optical scanning (IOS). The majority of students perceived IOS as easier than the conventional technique. Most (72%) preferred the digital approach using IOS to take the implant impression to the conventional method (12%) or had no preference (12%). Although total work was similar for males and females, the TRIOS quotient indicated that male students tended to use their time more efficiently. In this study, dental students with no clinical experience were very capable of acquiring digital tools, indicating that digital impression techniques can be included early in the dental curriculum to help them catch up with ongoing development in computer-assisted technologies used in oral rehabilitation.

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Implant Rehabilitation for Missing Adjacent Teeth in the Maxillary Esthetic Zone

2022

Clinical Cases in Periodontics

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Time‐efficiency analysis of the treatment with monolithic implant crowns in a digital workflow: a randomized controlled trial

Abstract: The test workflow was more time-efficient than the controls for implant-supported crowns; notably, laboratory fabrication steps could be effectively shortened with the digital process of monolithic LS2 plus titanium base resulting in more than 30% reduced overall treatment costs.

Cited by 105 publications

References 17 publications

Accuracy of Implant Casts Generated with Conventional and Digital Impressions—An In Vitro Study

Accuracy of Implant Casts Generated with Conventional and Digital Impressions—An In Vitro Study

Dental Students’ Perceptions of Digital and Conventional Impression Techniques: A Randomized Controlled Trial

Implant Rehabilitation for Missing Adjacent Teeth in the Maxillary Esthetic Zone

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