Comparison of a conventional and virtual occlusal record

Solaberrieta, Eneko; Otegi, José Ramón; Goicoechea, Nestor; Brizuela-Velasco, Aritza; Pradíes, Guillermo

doi:10.1016/j.prosdent.2015.01.009

Cited by 78 publications

(81 citation statements)

References 10 publications

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“…19 To mount the physical dental casts made by CAD-CAM technology, the facial (buccal) surfaces of the maxillary and mandibular teeth are scanned in maximum intercuspation (MIP); This technique is used instead of using a physical occlusal registration material, thus the CAD-CAM-generated dental casts can be mounted by using a best-fit alignment algorithm without any physical interocclusal record. 25 Other studies have focused on comparing conventional and virtual occlusal records.…”

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confidence: 99%

“…1, 25, 26 and 27 Solaberrieta et al 25 analyzed the accuracy of contacts between sets of digitized casts with 3 types of software, showing that virtual occlusion is more accurate than physical methods; the mean (standard deviation) accuracy of the virtual casts was 69 (11) μm. Maruyama et al 26 also showed virtual articulation methods created more exact contact points during excursive movements of articulated digital casts.…”

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confidence: 99%

“…35 Algorithms are essentially different methods of creating the cast. 25 By recording a more exact maxillary arch position in relation to the hinge axis for digital casts, the algorithm has been shown to be accurate enough for dental procedures. 36 Last, another influencing factor is the measuring method used.…”

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confidence: 99%

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Accuracy and precision of occlusal contacts of stereolithographic casts mounted by digital interocclusal registrations

Krahenbuhl

Irelan

Bansal

2016

The Journal of Prosthetic Dentistry

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confidence: 99%

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Accuracy and precision of occlusal contacts of stereolithographic casts mounted by digital interocclusal registrations

Krahenbuhl

Irelan

Bansal

2016

The Journal of Prosthetic Dentistry

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“…The whole scanned image was made by combining the scans of the two dentures with an occlusal scan using a subsequent inherent image matching algorithm in the scanning software. The digital occlusal registration using an occlusal scan has been reported to be more accurate than a traditional physical occlusal record 19 . Since the scans of the maxillary and mandibular dentures were registered in an accurate interarch relationship and exported with the same 3D coordinates, additional image matching was not needed for registering each dental arch image in the computer design software.…”

Section: Discussionmentioning

confidence: 99%

A Digital Technique to Replicate Edentulous Arches with Functional Borders and Accurate Maxillomandibular Relationship for Digital Complete Denture

Mai

Lee

2020

Journal of Prosthodontics

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Correct functional border impression and jaw registration is a challenge when edentulous arches are directly digitized with an intraoral scanner. This article describes a digital workflow to replicate complete edentulous arches with full functional contour, and position them in the centric relation using an intraoral scanner, existing denture, and three-dimensional image reversal technique. Based on the reconstructed images, the base and dental parts of the new denture can be designed efficiently and predictably.

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“…Studies comparing virtual and conventional transfer methods revealed promising results on the accuracy of virtual articulators to locate virtual casts at the exact position. Patient comfort was also increased with virtual articulator transferring methods . However, research is ongoing about the virtual articulators, and some CAD/CAM systems do not have virtual articulator software to simulate jaw movements.…”

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confidence: 99%

Comparison of Maximum Intercuspal Contacts of Articulated Casts and Virtual Casts Requiring Posterior Fixed Partial Dentures

Arslan

Güngör

Nemli

et al. 2016

Journal of Prosthodontics

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Purpose: To evaluate the accuracy of the CEREC CAD/CAM system in reproducing the maximum intercuspal contacts of the casts, which include posterior teeth preparation for a fixed partial denture (FPD). Materials and Methods: Ten pairs of gypsum casts were mounted in articulators in maximum intercuspal position (MIP) to serve as patient simulation models. Tooth #19 was removed from the cast. Occlusal contacts in MIP were identified with articulating paper, and digital impressions of the casts with unprepared teeth and buccal images in MIP were taken. Teeth #18 and #20 were prepared for an FPD, and full-and half-arch digital impressions of the casts with prepared teeth and buccal images from different sides were taken. In each situation, screenshot images of the virtual casts with occlusal contacts were saved as JPEG files. The proportions of congruence of virtual contacts with cast contacts were analyzed by superimposing screenshot images of the virtual casts onto the screenshot images of the casts with the indicated occlusal contacts in a transparent manner using an image-processing program. The data were statistically analyzed with a paired t-test. Results: The highest percentages of virtually indicated contacts identical to the cast contacts were observed in non-prepared full-arch digital impressions. Comparison of full-arch impressions taken before and after tooth preparation showed no difference for congruence even if the buccal image was taken from the contralateral or ipsilateral side (p > 0.05). After tooth preparation, comparing full-and half-arch digital impressions revealed that half-arch impression showed significantly lower percentages of identical contacts (p < 0.05). When comparing the buccal image side, no significant difference was detected between ipsilateral and contralateral images both for non-prepared and prepared casts (p > 0.05). Conclusion: When there is no posterior antagonist contact following tooth preparation for an FPD, taking a full-arch digital impression and designing the restoration on fullarch virtual models can be advocated.

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Comparison of a conventional and virtual occlusal record

Cited by 78 publications

References 10 publications

Accuracy and precision of occlusal contacts of stereolithographic casts mounted by digital interocclusal registrations

Accuracy and precision of occlusal contacts of stereolithographic casts mounted by digital interocclusal registrations

A Digital Technique to Replicate Edentulous Arches with Functional Borders and Accurate Maxillomandibular Relationship for Digital Complete Denture

Comparison of Maximum Intercuspal Contacts of Articulated Casts and Virtual Casts Requiring Posterior Fixed Partial Dentures

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