Effect of Different Intraoral Scanners on the Accuracy of Bite Registration in Edentulous Maxillary and Mandibular Arches

Rutkūnas, Vygandas; Jegelevičius, Darius; Gedrimienė, Agnė; Auškalnis, Liudas; Eyüboğlu, Tan Fırat; Özcan, Mutlu; Al-Haj Husain, Nadin; Akulauskas, Mykolas; Pletkus, Justinas

doi:10.1016/j.jdent.2024.105050

Journal of Dentistry

2024

DOI: 10.1016/j.jdent.2024.105050

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Effect of Different Intraoral Scanners on the Accuracy of Bite Registration in Edentulous Maxillary and Mandibular Arches

Vygandas Rutkūnas,

Darius Jegelevičius,

Agnė Gedrimienė

et al.

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2024

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Cited by 2 publications

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Accuracy of different maxillomandibular relationship recording techniques in the edentulous maxillary arch

Pletkus,

Auškalnis,

Gendvilienė

et al. 2024

Journal of Prosthodontics

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PurposeThis study investigated the effect of three digital bite registration techniques on the accuracy of intraoral scanning in maxillary edentulous and mandibular dentate arches.Materials and MethodsMaxillary edentulous and mandible fully dentate models were created. Four dental implants were placed in the maxilla, fitted with scan bodies, and reference scans were obtained using a Nikon Altera 10.7.6 scanner. Digital impressions were acquired 10 times for each model using a Trios 4 intraoral scanner. Three different digital bite records were collected for each pair of mandible and maxilla scans. The first one was a bite record without additional material (WSB), the second utilized a silicone index between the models (WSB silicone), and the third followed a pre‐preparation scanning protocol (Pre‐PREP). The data was exported in standard tessellation language (STL) format, which was assessed for trueness and precision using statistical analysis.ResultsAccording to mean trueness values, WSB exhibited the lowest value, 173 µm, followed by WSB silicone 242 µm and Pre‐PREP 620 µm. The differences were significant only when comparing Pre‐PREP to WSB and Pre‐PREP to WSB silicone (p < 0.05). Regarding precision, WSB demonstrated a mean value of 171.5 µm, followed by WSB silicone with 213.8 µm, and Pre‐PREP with 222.2 µm with no significant difference between the groups.ConclusionThe presence of interarch bite registration material adversely affected interocclusal record accuracy, while WSB silicone presented a suitable substitute for WSB.

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Accuracy of different maxillomandibular relationship recording techniques in the edentulous maxillary arch

Pletkus,

Auškalnis,

Gendvilienė

et al. 2024

Journal of Prosthodontics

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An In Vivo Comparison of Trueness and Precision of Two Novel Methods for Improving Edentulous Full Arch Implant Scanning Accuracy: A Pilot Study

Nulty

2024

Dentistry Journal

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Background: This retrospective in vivo study evaluated the trueness and precision of two digital intraoral scanners—Dentsply Sirona Primescan and Medit i900—, both with and without two variants of the novel Scan Ladder aids, and compared their performance to a new intraoral photogrammetry scanner (Shining 3D Elite). Methods: Data from ten edentulous patients, previously collected during routine clinical treatment, were analyzed using a master STL generated from traditional impression casts as the reference. A custom positional change calculator and comprehensive statistical analysis were used to assess scanner accuracy. Results: The findings demonstrated that the use of the Scan Ladder significantly enhanced the overall accuracy of both intraoral scanners, showing no statistically significant differences when compared to the intraoral photogrammetry system. Conclusions: These results indicate that the Scan Ladder improves the performance of conventional intraoral scanners and suggests that the Shining 3D Elite intraoral photogrammetry scanner is a reliable alternative to extraoral photogrammetry for edentulous cases. Further research, with a larger and more diverse cohort, is warranted to validate and expand upon these findings.

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Effect of Different Intraoral Scanners on the Accuracy of Bite Registration in Edentulous Maxillary and Mandibular Arches

Cited by 2 publications

References 30 publications

Accuracy of different maxillomandibular relationship recording techniques in the edentulous maxillary arch

Accuracy of different maxillomandibular relationship recording techniques in the edentulous maxillary arch

An In Vivo Comparison of Trueness and Precision of Two Novel Methods for Improving Edentulous Full Arch Implant Scanning Accuracy: A Pilot Study

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