Rosentritt, Martin and Behr, Michael and Strasser, Thomas and Schmid, Alois (2021) Pilot in-vitro study on insertion/removal performance of hand-cast, milled and 3D printed splints. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 121: 104612. ISSN 1751-6161, 1878-0180
Full text not available from this repository. (Request a copy)Abstract
Objectives: The aim of this in-vitro pilot study was to establish a splint testing method and compare insertion/removal performance of dental splints. Materials and methods: 56 identical lower jaw splints (n = 8 per group) were manufactured from 2x methacrylate (MA) hand-cast (reference material), deep-drawn Polyethyleneterephthalate, combined deep-draw MA handcast, 2x CAD/CAM-milled MA and 3D-printed MA systems. After 10 days water storage (37 degrees C), cyclic pull-off and insertion performance on a metal jaw was investigated. Statistics; Shapiro-Wilk-test, one-way-ANOVA; post-hoc-Bonferroni, Kaplan-Meier-survival, alpha = 0.05. Results: Mean insertion/pull-off cycles varied significantly (p = 0.000) between 864 cycles (MA) and 202640 cycles (Deep Draw MA). Fracture of the splints was characterized by brittle individual fractures in the 31-34 region and most fractures in region 35 (44 of 56 splints). Finite element analysis confirmed the type and location of failure. Conclusions: Deep-draw, cast methacrylate and combined systems showed longer insertion/pull-off system cycles in comparison to printed or milled splints. Insertion/pull-off performance showed differences between the tested splint systems and indicates the influence of the processing. Clinical relevance: The presented in-vitro test allowed for estimating the clinical insertion/pull-off performance of dental splints.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TEMPOROMANDIBULAR DISORDERS; ORAL SPLINTS; Splint; Insertion; removal performance; In-vitro test; Pilot study; CAD; CAM; 3D; Printing |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnärztliche Prothetik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Aug 2022 09:45 |
| Last Modified: | 02 Aug 2022 09:45 |
| URI: | https://pred.uni-regensburg.de/id/eprint/45995 |
Actions (login required)
 |
View Item |
