Banca de QUALIFICAÇÃO: FERNANDA GURGEL DE GOIS MOREIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : FERNANDA GURGEL DE GOIS MOREIRA
DATE: 07/06/2022
TIME: 14:00
LOCAL: PLATAFORMA REMOTA
TITLE:

INFLUENCE OF PRINT TYPE, POST PROCESSING AND RESIN TYPE ON FLEXURAL STRENGTH AND DEGREE OF CONVERSION OF PRINTED RESINS.

KEY WORDS:

Printing, Three-Dimensional; flexural strength, Dental Materials.

PAGES: 34
BIG AREA: Ciências da Saúde
AREA: Odontologia
SUBÁREA: Clínica Odontológica
SUMMARY:

The aim of this study is to evaluate the influence of different post-processing protocols, aging and 3D printing type of different printed resins on the three-point flexural strength (s), dimensional stability and degree of conversion. After modeling a bar (26 x 2.2 x 2.2mm) in Meshmixer software (Autodesk) and obtaining an STL file, it will be exported to the SLA (Forms 2/Formslab) and LCD (FlashForge) 3D printer software. Photo 6.0/ FlashForge). Afterwards, 90 bars of each type of resin (Pr - Provisional/Cosmos Temp, Yller; Pl - Occlusal Plate/Cosmos Splint, Yller; Mo – Models/ Cosmos Model, Yller) will be printed by each printing system (SLA and LCD). After printing, the bars of each type of resin will be cleaned with isopropyl alcohol and randomly distributed (n=15) according to the study factors: “Post-processing protocol” Control (C: without post-processing); Ultraviolet Light (UV: 15 min in Anycubic Wash and Cure Plus, Anycubic) and Microwave (M: 15 min in microwave oven/1400W) and “aging” (with: 10,000 cycles, 50-550C; and without). Afterwards, the bars will be submitted to the s test (100KgF, 1mm/min) and the data (MPa) will be submitted to 3-way ANOVA and Tukey (5%). Complementary analysis of degree of conversion, dimensional stability, SEM, fractured surface analysis and Vickers microhardness. The flexural strength (MPa) and degree of conversion (%) data will be analyzed using ANOVA (3-way), Tukey (5%) and Weibull analysis. For dimensional stability data, the paired T test (5%) will be performed. Considering other studies and research on the subject, it is expected to find better physical properties, such as flexural strength, surface hardness and degree of conversion, through post-processing protocols. This knowledge is essential to fill gaps in the literature, favoring the scientific advancement of 3D printing, as well as seeking improvements in the clinical performance of these materials.

BANKING MEMBERS:
Presidente - 1640419 - RODRIGO OTHAVIO DE ASSUNCAO E SOUZA
Interna - 1459400 - ADRIANA DA FONTE PORTO CARREIRO
Interna - 1678126 - PATRICIA DOS SANTOS CALDERON