Page 61 - MDA SCATE 2024 Programme Book

ORAL PRESENTATION

ABSTRACTS

Abstract 13 Impact Absorption on the 3D Printed Mouthguard Material in Selected
Printing Angulations
Idris, S. S., Li, C. Y., , Aung, T., , Kaung, S. T., Zhu, Q. S., Tsuchida, Y., &
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Churei, H. 4
1. Klinik Pergigian Cheras, WP Kuala Lumpur & Putrajaya, Malaysia.
2. Department of Masticatory Function and Health Science, Graduate School
of Medical and Dental Science, Tokyo Medical and Dental University.
3. Department of Digital Dentistry, Graduate School of Medical and Dental
Science, Tokyo Medical and Dental University.
4. Masticatory Function and Health Science, Graduate School of Medical and
Dental Science, Tokyo Medical and Dental University, Tokyo Medical and
Dental University, Clinic for Sports Dentistry, Tokyo Medical and Dental
University, Tokyo Medical and Dental University.

Introduction: Nowadays, mouthguards can be produced based on digital
impression using intraoral scanners. However, the relationship between
printing angulations and material properties during printing has not been
fully investigated.
Objectives: To assess the impact absorption on 3D printed mouthguard
material in selected printing angulations.
Methodology: A standard tessellation language (STL) file of a circle
mouthguard sheet with 50mm diameter and 2mm thickness was used to
design the samples using the Cara® Print 4.0 software (Kulzer Japan) at the
selected printing angulation at 0°,10°, 20°, 30°, 40° and 50° and 18 samples
produced using the Dima® Print Soft Splint (Kulzer Japan) blue. All samples
were stored for 24 hours at 23°C before testing. Impact force was generated
by releasing the stainless-steel ball from 600 mm above each sample using
a modified IM-201 impact testing machine (Tester Sangyo Co., Saitama,
Japan).
Results: The lowest maximum force was 403.5N (samples at 10°angulations)
and the highest maximum force was 491.2N (samples at 50° angulations). The
highest maximum impact force time was 0.91ms (samples at 10° angulations)
and the lowest maximum impact force time was 0.40ms (sample at 0°
angulations). Printing angulations had significant influence on the impact
absorption of 3D mouthguard sheet material. There is a significant result
in between groups reported for selected printing angulation. The lowest
impact absorption with the longest impact force time is preferred to prevent
the oral injuries due to impact during sports.
Conclusion: The relationship between printing angulations and impact
absorption properties was investigated for 3D printed soft material of
mouthguard. Printing angulations has significantly influenced the impact
of absorption properties.

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