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Clinical Oral Investigations

Erschienen in:

06.07.2023 | Research

Effect of offset on the precision of 3D-printed orthognathic surgical splints

verfasst von: Peiqi Wang, Yipeng Wang, Hui Xu, Yixi Huang, Yu Shi, Siqi Chen, Ding Bai, Chaoran Xue

Erschienen in: Clinical Oral Investigations | Ausgabe 9/2023

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Abstract

Objective

This study evaluated the effect of offset on the precision of three-dimensional (3D)-printed splints, proposing to optimize the splint design to compensate for systematic errors.

Materials and methods

14 resin model sets were scanned and offset as a whole by given distances (0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40 mm). Intermediate splints (ISs) and final splints (FSs) were generated from the non-offset and offset models and grouped correspondingly, named as splint type-offset value, IS-0.05, for instance. Dentitions occluded with the splint were scanned. Translational and rotational deviations of the lower dentition relative to the upper dentition were 3D measured.

Results

Deviations of ISs and FSs were more evident in the vertical and pitch dimensions, and were mostly acceptable in other dimensions. ISs with offset ≥ 0.05 mm showed vertical deviations significantly below 1 mm (P < 0.05) while ISs with 0.10- to 0.30-mm offsets had pitch rotations significantly lower than 1° (P < 0.05). The Pitch of IS-0.35 was significantly larger than ISs with 0.15- to 0.30-mm offsets (P < 0.05). Meanwhile, FSs fit better as the offset increased and FSs with offsets ≥ 0.15 mm all had deviations significantly lower than 1 mm (for translation) or 1° (for rotation) (P < 0.05).

Conclusions

Offset affects the precision of 3D-printed splints. Moderate offset values of 0.10 to 0.30 mm are recommendable for ISs. Offset values ≥ 0.15 mm are recommended for FSs in cases with stable final occlusion.

Clinical relevance

This study found the optimal offset ranges for 3D-printed ISs and FSs via a standardized protocol.

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Titel: Effect of offset on the precision of 3D-printed orthognathic surgical splints
verfasst von: Peiqi Wang
Yipeng Wang
Hui Xu
Yixi Huang
Yu Shi
Siqi Chen
Ding Bai
Chaoran Xue
Publikationsdatum: 06.07.2023
Verlag: Springer Berlin Heidelberg
Erschienen in: Clinical Oral Investigations / Ausgabe 9/2023
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI: https://doi.org/10.1007/s00784-023-05134-8

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Effect of offset on the precision of 3D-printed orthognathic surgical splints

Abstract

Objective

Materials and methods

Results

Conclusions

Clinical relevance

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Abstract

Objective

Materials and methods

Results

Conclusions

Clinical relevance

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