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[不同时间段热固化和自固化丙烯酸树脂盘表面显微硬度的比较]

[Comparison of the surface microhardness of heat curing and self-curing acrylic resin discs in different time periods].

作者信息

Carbajal Córdova Sarahí Paola, Huertas Mogollón Gustavo Augusto

机构信息

Universidad Científica del Sur. Lima, Perú.

出版信息

Rev Cient Odontol (Lima). 2021 Jun 21;9(2):e054. doi: 10.21142/2523-2754-0902-2021-054. eCollection 2021 Apr-Jun.

DOI:10.21142/2523-2754-0902-2021-054
PMID:39687288
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11648984/
Abstract

OBJECTIVE

To compare surface microhardness of self-curing and heat-curing acrylic discs in different periods of time.

METHODOLOGY

This laboratory study, consisted of 80 acrylic discs (Vitalloy), 40 self-cured (A) and 40 heat-cured (T) divided into 8 subgroups: self-cure control group GA0 (n=10), heat-cure control group GT0 (n=10), self-cure group stored 1 day GA1 (n=10), heat-cure group stored 1 day GT1 (n=10), self-cure group stored 7 days GA7 (n=10), heat-cure group stored 7 days GT7 (n=10), self-cure group stored 21 days GA21 (n=10), and heat-cure group stored 21 days GT21 (n=10). Vickers surface microhardness of the acrylic resin discs previously stored in physiological serum was then evaluated at the different time periods. Subsequently, the data was statistically analyzed using ANOVA and TUKEY tests. The level of statistical significance was set at P <0.05.

RESULTS

The values found were in GT0 (20.45±0.93 Vickers hardness number [VHN]); GA0 (16.25±0.79 VHN); GT1 (20.08±0.66 VHN); GA1 (15.97±0.78 VHN); GT7 (19.57±1.54 VHN); GA7 (14.33±0.48 VHN); GT21 (19.17±1.26 VHN); GA21 (14.64±0.52 VHN), with statistically significant differences between the self-cure and heat-cure groups (P<0.001).

CONCLUSION

The groups of heat-curing acrylic resins presented better microhardness values than the groups of self-curing acrylic resins in the different time periods evaluated.

摘要

目的

比较自凝型和热凝型丙烯酸树脂盘在不同时间段的表面显微硬度。

方法

本实验室研究包括80个丙烯酸树脂盘（维他灵），其中40个自凝型（A组）和40个热凝型（T组），分为8个亚组：自凝对照组GA0（n = 10）、热凝对照组GT0（n = 10）、自凝型储存1天组GA1（n = 10）、热凝型储存1天组GT1（n = 10）、自凝型储存7天组GA7（n = 10）、热凝型储存7天组GT7（n = 10）、自凝型储存21天组GA21（n = 10）、热凝型储存21天组GT21（n = 10）。然后在不同时间段评估预先储存在生理血清中的丙烯酸树脂盘的维氏表面显微硬度。随后，使用方差分析和图基检验对数据进行统计学分析。统计学显著性水平设定为P <0.05。

结果

得到的值分别为GT0（20.45±0.93维氏硬度值[VHN]）、GA0（16.25±0.79 VHN）、GT1（20.08±0.66 VHN）、GA1（15.97±0.78 VHN）、GT7（19.57±1.54 VHN）、GA7（14.33±0.48 VHN）、GT21（19.17±1.26 VHN）、GA21（14.64±0.52 VHN），自凝型和热凝型组之间存在统计学显著差异（P<0.001）。

结论

在评估 的不同时间段内热凝型丙烯酸树脂组的显微硬度值优于自凝型丙烯酸树脂组。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/ac74bce57c13/odontologica-9-02-e054-gf6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/b8e80a5a8eef/odontologica-9-02-e054-gf1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/bc1dbdfd4956/odontologica-9-02-e054-gf2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/0e4cd7089a96/odontologica-9-02-e054-gf3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/26fb81f748ab/odontologica-9-02-e054-gf4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/0391aa3ab369/odontologica-9-02-e054-e054-gf5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/ac74bce57c13/odontologica-9-02-e054-gf6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/b8e80a5a8eef/odontologica-9-02-e054-gf1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/bc1dbdfd4956/odontologica-9-02-e054-gf2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/0e4cd7089a96/odontologica-9-02-e054-gf3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/26fb81f748ab/odontologica-9-02-e054-gf4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/0391aa3ab369/odontologica-9-02-e054-e054-gf5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/59e2/11648984/ac74bce57c13/odontologica-9-02-e054-gf6.jpg

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