Daniela Peressoni Vieira Schuldt, L. F. R. Garcia, C. Teixeira, Beatriz Dulcineia Mendes Souza, Julia Menezes Savaris, E. A. Bortoluzzi
{"title":"不同浓度丙二醇对MTA理化性质的影响","authors":"Daniela Peressoni Vieira Schuldt, L. F. R. Garcia, C. Teixeira, Beatriz Dulcineia Mendes Souza, Julia Menezes Savaris, E. A. Bortoluzzi","doi":"10.32067/GIE.2021.35.01.10","DOIUrl":null,"url":null,"abstract":"Aim: This study evaluated the effect of different concentrations of propylene glycol (PG) on the dimensional change (DC), compressive strength (CS), solubility and pH of MTA. \nMethodology: Groups were formed according to the proportion of distilled water (DW) and PG in MTA manipulation: G1 (100% DW); G2 (80% DW+20% PG); G3 (50% DW+50% PG); G4 (20% DW+80% PG). The tests were guided by ISO and BSI standards. DC and CS tests were performed after 24 h and 30 days of samples storage in water. In the solubility test, rings filled with the cements were weighed after setting and after 7 days. The pH was measured after 3 and 24 h, and 30 days. The data were analyzed with the ANOVA, Tukey’s and Paired t tests (a=5%). \nResults: After 24 h and 30 days, the DC and CS were similar among groups, except the CS for G3 in 30 days. After 7 days, G1 gained weight when hydrated, differing from G3 and G4 (p<0.05). When weighed dehydrated, G2 was different from the other groups (p<0.05). After 3 h, G1 had lower pH values in comparison with G2, G3 and G4 (p<0.05). At the 24-h period, G2 had higher pH values than G1 and G2 (p<0.05). After 7 days, there was no difference among groups. \nConclusions: PG did not affect the MTA dimensional change and compressive strength (except for G3). However, PG reduced MTA solubility (G2) and increased its pH after 3 hours.","PeriodicalId":42221,"journal":{"name":"Giornale Italiano di Endodonzia","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Effect of different concentrations of propylene glycol on the physical-chemical properties of MTA\",\"authors\":\"Daniela Peressoni Vieira Schuldt, L. F. R. Garcia, C. Teixeira, Beatriz Dulcineia Mendes Souza, Julia Menezes Savaris, E. A. Bortoluzzi\",\"doi\":\"10.32067/GIE.2021.35.01.10\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Aim: This study evaluated the effect of different concentrations of propylene glycol (PG) on the dimensional change (DC), compressive strength (CS), solubility and pH of MTA. \\nMethodology: Groups were formed according to the proportion of distilled water (DW) and PG in MTA manipulation: G1 (100% DW); G2 (80% DW+20% PG); G3 (50% DW+50% PG); G4 (20% DW+80% PG). The tests were guided by ISO and BSI standards. DC and CS tests were performed after 24 h and 30 days of samples storage in water. In the solubility test, rings filled with the cements were weighed after setting and after 7 days. The pH was measured after 3 and 24 h, and 30 days. The data were analyzed with the ANOVA, Tukey’s and Paired t tests (a=5%). \\nResults: After 24 h and 30 days, the DC and CS were similar among groups, except the CS for G3 in 30 days. After 7 days, G1 gained weight when hydrated, differing from G3 and G4 (p<0.05). When weighed dehydrated, G2 was different from the other groups (p<0.05). After 3 h, G1 had lower pH values in comparison with G2, G3 and G4 (p<0.05). At the 24-h period, G2 had higher pH values than G1 and G2 (p<0.05). After 7 days, there was no difference among groups. \\nConclusions: PG did not affect the MTA dimensional change and compressive strength (except for G3). However, PG reduced MTA solubility (G2) and increased its pH after 3 hours.\",\"PeriodicalId\":42221,\"journal\":{\"name\":\"Giornale Italiano di Endodonzia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2021-04-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Giornale Italiano di Endodonzia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.32067/GIE.2021.35.01.10\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Giornale Italiano di Endodonzia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.32067/GIE.2021.35.01.10","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
Effect of different concentrations of propylene glycol on the physical-chemical properties of MTA
Aim: This study evaluated the effect of different concentrations of propylene glycol (PG) on the dimensional change (DC), compressive strength (CS), solubility and pH of MTA.
Methodology: Groups were formed according to the proportion of distilled water (DW) and PG in MTA manipulation: G1 (100% DW); G2 (80% DW+20% PG); G3 (50% DW+50% PG); G4 (20% DW+80% PG). The tests were guided by ISO and BSI standards. DC and CS tests were performed after 24 h and 30 days of samples storage in water. In the solubility test, rings filled with the cements were weighed after setting and after 7 days. The pH was measured after 3 and 24 h, and 30 days. The data were analyzed with the ANOVA, Tukey’s and Paired t tests (a=5%).
Results: After 24 h and 30 days, the DC and CS were similar among groups, except the CS for G3 in 30 days. After 7 days, G1 gained weight when hydrated, differing from G3 and G4 (p<0.05). When weighed dehydrated, G2 was different from the other groups (p<0.05). After 3 h, G1 had lower pH values in comparison with G2, G3 and G4 (p<0.05). At the 24-h period, G2 had higher pH values than G1 and G2 (p<0.05). After 7 days, there was no difference among groups.
Conclusions: PG did not affect the MTA dimensional change and compressive strength (except for G3). However, PG reduced MTA solubility (G2) and increased its pH after 3 hours.
期刊介绍:
The Giornale Italiano di Endodonzia was founded in 1987 and is the official journal of the Italian Society of Endodontics (SIE). It is a peer-reviewed journal publishing original articles on clinical research and/or clinical methodology, case reports related to Endodontics. The Journal evaluates also contributes in restorative dentistry, dental traumatology, experimental pathophysiology, pharmacology and microbiology dealing with Endodontics.