A methodology to design and fabricate a smart brace using low-cost additive manufacturing

Teng, P.S.P.; Leong, Kah Fai; Kong, Pui Wah; Er, B.H.; Chew, Zhi Yong; Tan, P. S.; Tee, Chor Hiong

doi:10.1080/17452759.2022.2090384

Cited by 6 publications

(1 citation statement)

References 23 publications

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“…In MEX, the thermoplastic material is melted and extruded from a hot end to form a printed layer to produce the desired object [ 40 , 41 ]. Alsoufi et al [ 42 ] reported that the shape error of PLA was within 3.00% on each side of a 40 mm (L) × 40 mm (W) × 15 mm (H) specimen, which is excellent accuracy for PLA fabricated by MEX.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of Dental Models Fabricated Using Recycled Poly-Lactic Acid

et al. 2023

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Based on the hypothesis that the fabrication of dental models using fused deposition modeling and poly-lactic acid (PLA), followed by recycling and reusing, would reduce industrial waste, we aimed to compare the accuracies of virgin and recycled PLA models. The PLA models were recycled using a crusher and a filament-manufacturing machine. Virgin PLA was labeled R, and the first, second, and third recycles were labeled R1, R2, and R3, respectively. To determine the accuracies of the virgin and reused PLA models, identical provisional crowns were fitted, and marginal fits were obtained using micro-computed tomography. A marginal fit of 120 µm was deemed acceptable based on previous literature. The mesial, distal, buccal, and palatal centers were set at M, D, B, and P, respectively. The mean value of each measurement point was considered as the result. When comparing the accuracies of R and R1, R2, and R3, significant differences were noted between R and R3 at B, R and R2, R3 at P, and R and R3 at D (p < 0.05). No significant difference was observed at M. This study demonstrates that PLA can be recycled only once owing to accuracy limitations.

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Section: Discussionmentioning

confidence: 99%