Effect of offset on the precision of 3D-printed orthognathic surgical splints.
CAD/CAM
Offset
Orthodontics
Orthognathic surgery
Splint
Journal
Clinical oral investigations
ISSN: 1436-3771
Titre abrégé: Clin Oral Investig
Pays: Germany
ID NLM: 9707115
Informations de publication
Date de publication:
Sep 2023
Sep 2023
Historique:
received:
06
05
2022
accepted:
26
06
2023
medline:
11
9
2023
pubmed:
7
7
2023
entrez:
6
7
2023
Statut:
ppublish
Résumé
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. 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. 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). 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. This study found the optimal offset ranges for 3D-printed ISs and FSs via a standardized protocol.
Identifiants
pubmed: 37415046
doi: 10.1007/s00784-023-05134-8
pii: 10.1007/s00784-023-05134-8
doi:
Types de publication
Journal Article
Langues
eng
Pagination
5141-5151Subventions
Organisme : West China Hospital of Stomatology, Sichuan University
ID : RD-03-202108
Organisme : West China Hospital of Stomatology, Sichuan University
ID : LCYJ-2022-YY-3
Organisme : Chinese Orthodontic Society, Chinese Stomatological Association
ID : COS-C2021-02
Organisme : Natural Science Foundation of Sichuan Province
ID : 22NSFSC2984
Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
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