Three-dimensional virtual representation by superimposing facial and intraoral digital scans with an additively manufactured intraoral scan body

Pérez-Giugovaz, Marcelo Gabriel; Park, So Hyeon; Revilla‐León, Marta

doi:10.1016/j.prosdent.2020.07.012

Cited by 15 publications

(32 citation statements)

References 12 publications

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“…The computer‐aided design (CAD) of the intraoral scan body can be modified using a CAD software program to customize the dental device dimensions to a patient's arch and facilitate the intraoral procedures in the patient's mouth (Fig 1). Furthermore, there are different intraoral scan body designs based on the patient's clinical condition namely dentate and completely edentulous arches 6,30–32 . Each intraoral scan body design aims to ease the clinical data collection techniques 6,30–32 .…”

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

“…For dentate patients, the intraoral scan body design presents an open occlusal surface which aims to facilitate the occlusal registration 6 . The frontal aspect of the intraoral scan body is designed with three spheric elements that attempt to provide higher scanning surface area without sharp angles and facilitate the posterior alignment techniques (Fig 2A, B).…”

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

“…The BF uses an iterative closest point algorithm to superimpose two meshes minimizing the difference between the meshes and iteratively revises the transformation needed to minimize an error metric 60,61 . As an example, the AM intraoral scan body is the common element between the reference facial scan and the digitized intraoral scan body or the occlusal surfaces of the maxillary teeth between the maxillary intraoral digital scan and the digitized intraoral scan body 6,30–33 . With the alignment of the patient's digital files, the 3D virtual patient representation is obtained.…”

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

“…Subsequently, the intraoral scan body is recovered from the patient's mouth. Then, the maxillary reference scan is completed by scanning the entire buccal areas of the intraoral scan body using the same IOS 6 . Lastly, the maxillary, mandibular, and interocclusal digital scans are acquired by using the same IOS following the manufacturer's recommended scanning protocol under the same ambient lighting conditions 6 …”

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

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Additively Manufactured Scan Bodies for Virtual Patient Integration: Different Designs, Manufacturing Procedures, and Clinical Protocols

Pérez-Giugovaz¹,

Meykadeh

Revilla‐León

2022

Journal of Prosthodontics

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Additively manufactured intraoral scan bodies can be used to guide the alignment of a patient's digital file information, including facial and intraoral digital scans both with and without a cone beam computed tomography scan, and to obtain a 3D virtual patient's representation. The present manuscript reviews the different intraoral scan body designs, procedures involved in additive manufacturing, clinical protocols for fabricating an additively manufactured scan body, performing a patient's digital data collection, and completing the alignment techniques.

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Section: Intraoral Scan Body Designsmentioning

confidence: 99%

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

Section: Intraoral Scan Body Designsmentioning

confidence: 99%

See 2 more Smart Citations

Additively Manufactured Scan Bodies for Virtual Patient Integration: Different Designs, Manufacturing Procedures, and Clinical Protocols

Pérez-Giugovaz¹,

Meykadeh

Revilla‐León

2022

Journal of Prosthodontics

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“…Therefore, an accurate mounting of a maxillary digital scan in a virtual articulator through these VF techniques requires, among other things, an accurate VF record. Different VF record techniques are available, [7][8][9][10][11][12][13][14][15] but their accuracy has been little studied. [16][17][18] The accuracy of a VF record technique refers to its ability to provide correct and repeatable locations of a maxillary digital scan with respect to a 3D face scan.…”

mentioning

confidence: 99%

Analysis of the impact of the facial scanning method on the precision of a virtual facebow record technique: An in vivo study

Amezua

Iturrate

2023

The Journal of Prosthetic Dentistry

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Statement of problem. Virtual facebow record techniques typically record the relationship of a maxillary digital scan to facial landmarks by aligning it to a 3-dimensional face scan. Three-dimensional face scans can be acquired with different facial scanning methods, but the impact of the facial scanning method on the accuracy (trueness and precision) of a virtual facebow record technique remains unclear.Purpose. The purpose of this in vivo study was to assess the impact of the facial scanning method on the precision under the repeatability conditions (repeatability) of a virtual facebow record technique.Material and methods. Repeatability of the virtual facebow record technique with the following 3 clinical-grade facial scanning methods was determined and compared: a professional handheld scanner based on structured blue light scanning technology (PHS method); an attachment-type 3-dimensional sensor camera connected to a tablet and controlled with a mobile application (3DSC-T method); and a smartphone with an integrated 3-dimensional sensor camera controlled with a mobile application (3DSC-S method). To determine the repeatability of the virtual facebow record technique with each facial scanning method, 8 virtual facebow records of a completely dentate adult with class I occlusion and mesoprosopic facial form were obtained (8×3=24 in total); with these, 8 locations of a maxillary digital scan with respect to a common 3-dimensional face scan were obtained. Repeatability was determined in terms of deviations between located maxillary digital scans, determined, in turn, by calculating the distances between corresponding vertices for each of the possible nonrepeating combinations of pairs of located maxillary digital scans ( 8 C 2 =28). Finally, the repeatability of the virtual facebow record technique with the different facial scanning methods was compared by using the Welch ANOVA test and the post hoc Games-Howell test (both a=.05).Results. The repeatability of the virtual facebow record technique with PHS, 3DSC-T, and 3DSC-S facial scanning methods resulted in 0.243 ±0.094 mm, 0.437 ±0.171 mm, and 1.023 ±0.399 mm, respectively. Comparison of these results revealed that the facial scanning method had a statistically significant effect on the repeatability of the virtual facebow record technique (P<.001) and that its repeatability was statistically significantly greater with the PHS facial scanning method than with the 3DSC-T and 3DSC-S facial scanning methods and greater with the 3DSC-T facial scanning method than with the 3DSC-S facial scanning method (P<.001 for all pairwise comparisons).Conclusions. This study found that the facial scanning method had a great impact on the repeatability of the virtual facebow record technique and that the virtual facebow record technique was more repeatable with more accurate facial scanning methods.

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Additive Manufacturing Procedures and Clinical Applications in Restorative Dentistry

Revilla‐León¹,

Zandinejad²

2022

Clinical Applications of Digital Dental Technology

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Three-dimensional virtual representation by superimposing facial and intraoral digital scans with an additively manufactured intraoral scan body

Cited by 15 publications

References 12 publications

Additively Manufactured Scan Bodies for Virtual Patient Integration: Different Designs, Manufacturing Procedures, and Clinical Protocols

Additively Manufactured Scan Bodies for Virtual Patient Integration: Different Designs, Manufacturing Procedures, and Clinical Protocols

Analysis of the impact of the facial scanning method on the precision of a virtual facebow record technique: An in vivo study

Additive Manufacturing Procedures and Clinical Applications in Restorative Dentistry

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