Matheus Albino Souza, Karolina Frick Bischoff, Rafaela Ricci, Luiza Frick Bischoff, Eduarda Reuter, Nathalia da Silva Gomes, Mariana Gabriela Hofstetter, Eduardo Winck Dos Santos, Theodoro Weissheimer, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa, José Antonio Poli de Figueiredo, Huriel Scartazzini Palhano, Yuri Dal Bello
{"title":"乙醇酸和超声波活化：对根部牙本质填充材料的涂抹层去除、牙本质渗透、牙本质结构和粘接强度的影响。","authors":"Matheus Albino Souza, Karolina Frick Bischoff, Rafaela Ricci, Luiza Frick Bischoff, Eduarda Reuter, Nathalia da Silva Gomes, Mariana Gabriela Hofstetter, Eduardo Winck Dos Santos, Theodoro Weissheimer, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa, José Antonio Poli de Figueiredo, Huriel Scartazzini Palhano, Yuri Dal Bello","doi":"10.4317/jced.61215","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Glycolic acid (GA) has been tested as enamel and dentin etchant, and final irrigant for smear layer removal. This study evaluated the effects of GA and ultrasonic activation (US) on smear layer removal, dentin penetration, dentin structure and bond strength of the root dentin filling material.</p><p><strong>Material and methods: </strong>The root canals of 210 teeth were distributed into four test groups: smear layer removal (N=50), dentin penetration (N=50), dentin structure (N=10) and bond strength (N=100). In all tests, specimens were subdivided into five groups, according to the final irrigation protocols: G1:distilled water(DW)+US; G2:17% EDTA; G3:17% GA; G4:17% EDTA+US; G5:17% GA+US. Scanning electronic microscopy, confocal laser scanning microscopy, transmission electronic microscopy and the push-out test were performed to evaluate smear layer removal, dentin penetration, dentin structure and bond strength, respectively. Statistical analysis was performed for each evaluation (α=5%).</p><p><strong>Results: </strong>Groups 4 (EDTA+US) and 5 (GA+US) were the most effective on smear layer removal, with no statistical differences from each other (<i>p</i>>0.05). The maximum penetration depth into dentinal tubules was observed for group 5(GA+US), being statistically different from all other groups (p<i>p</i><0.05). Group 5(GA+US) showed the largest collagen dispersion area, being statistically different from groups 1(DW+US), 2(EDTA) and 3(GA) (p<i>p</i><0.05), and similar to group 4(EDTA+US) (<i>p</i>>0.05). The highest BS values for filling and restorative material were observed for all experimental groups, being statistically different from control group (p<i>p</i><0.05), with higher predominance of cohesive failure.</p><p><strong>Conclusions: </strong>The association of GA and US promotes better smear layer removal, dentin penetration and collagen dispersion, with no influence on bond strength of the root dentin filling/restorative material. <b>Key words:</b>EDTA, final irrigation, glycolic acid, ultrasonic activation.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"16 10","pages":"e1269-e1277"},"PeriodicalIF":0.0000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11559117/pdf/","citationCount":"0","resultStr":"{\"title\":\"Glycolic acid and ultrasonic activation: Effects on smear layer removal, dentin penetration, dentin structure and bond strength of the root dentin filling material.\",\"authors\":\"Matheus Albino Souza, Karolina Frick Bischoff, Rafaela Ricci, Luiza Frick Bischoff, Eduarda Reuter, Nathalia da Silva Gomes, Mariana Gabriela Hofstetter, Eduardo Winck Dos Santos, Theodoro Weissheimer, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa, José Antonio Poli de Figueiredo, Huriel Scartazzini Palhano, Yuri Dal Bello\",\"doi\":\"10.4317/jced.61215\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Glycolic acid (GA) has been tested as enamel and dentin etchant, and final irrigant for smear layer removal. This study evaluated the effects of GA and ultrasonic activation (US) on smear layer removal, dentin penetration, dentin structure and bond strength of the root dentin filling material.</p><p><strong>Material and methods: </strong>The root canals of 210 teeth were distributed into four test groups: smear layer removal (N=50), dentin penetration (N=50), dentin structure (N=10) and bond strength (N=100). In all tests, specimens were subdivided into five groups, according to the final irrigation protocols: G1:distilled water(DW)+US; G2:17% EDTA; G3:17% GA; G4:17% EDTA+US; G5:17% GA+US. Scanning electronic microscopy, confocal laser scanning microscopy, transmission electronic microscopy and the push-out test were performed to evaluate smear layer removal, dentin penetration, dentin structure and bond strength, respectively. Statistical analysis was performed for each evaluation (α=5%).</p><p><strong>Results: </strong>Groups 4 (EDTA+US) and 5 (GA+US) were the most effective on smear layer removal, with no statistical differences from each other (<i>p</i>>0.05). The maximum penetration depth into dentinal tubules was observed for group 5(GA+US), being statistically different from all other groups (p<i>p</i><0.05). Group 5(GA+US) showed the largest collagen dispersion area, being statistically different from groups 1(DW+US), 2(EDTA) and 3(GA) (p<i>p</i><0.05), and similar to group 4(EDTA+US) (<i>p</i>>0.05). The highest BS values for filling and restorative material were observed for all experimental groups, being statistically different from control group (p<i>p</i><0.05), with higher predominance of cohesive failure.</p><p><strong>Conclusions: </strong>The association of GA and US promotes better smear layer removal, dentin penetration and collagen dispersion, with no influence on bond strength of the root dentin filling/restorative material. <b>Key words:</b>EDTA, final irrigation, glycolic acid, ultrasonic activation.</p>\",\"PeriodicalId\":15376,\"journal\":{\"name\":\"Journal of Clinical and Experimental Dentistry\",\"volume\":\"16 10\",\"pages\":\"e1269-e1277\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11559117/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Clinical and Experimental Dentistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4317/jced.61215\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Dentistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Clinical and Experimental Dentistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4317/jced.61215","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Dentistry","Score":null,"Total":0}
Glycolic acid and ultrasonic activation: Effects on smear layer removal, dentin penetration, dentin structure and bond strength of the root dentin filling material.
Background: Glycolic acid (GA) has been tested as enamel and dentin etchant, and final irrigant for smear layer removal. This study evaluated the effects of GA and ultrasonic activation (US) on smear layer removal, dentin penetration, dentin structure and bond strength of the root dentin filling material.
Material and methods: The root canals of 210 teeth were distributed into four test groups: smear layer removal (N=50), dentin penetration (N=50), dentin structure (N=10) and bond strength (N=100). In all tests, specimens were subdivided into five groups, according to the final irrigation protocols: G1:distilled water(DW)+US; G2:17% EDTA; G3:17% GA; G4:17% EDTA+US; G5:17% GA+US. Scanning electronic microscopy, confocal laser scanning microscopy, transmission electronic microscopy and the push-out test were performed to evaluate smear layer removal, dentin penetration, dentin structure and bond strength, respectively. Statistical analysis was performed for each evaluation (α=5%).
Results: Groups 4 (EDTA+US) and 5 (GA+US) were the most effective on smear layer removal, with no statistical differences from each other (p>0.05). The maximum penetration depth into dentinal tubules was observed for group 5(GA+US), being statistically different from all other groups (pp<0.05). Group 5(GA+US) showed the largest collagen dispersion area, being statistically different from groups 1(DW+US), 2(EDTA) and 3(GA) (pp<0.05), and similar to group 4(EDTA+US) (p>0.05). The highest BS values for filling and restorative material were observed for all experimental groups, being statistically different from control group (pp<0.05), with higher predominance of cohesive failure.
Conclusions: The association of GA and US promotes better smear layer removal, dentin penetration and collagen dispersion, with no influence on bond strength of the root dentin filling/restorative material. Key words:EDTA, final irrigation, glycolic acid, ultrasonic activation.
期刊介绍：
Indexed in PUBMED, PubMed Central® (PMC) since 2012 and SCOPUSJournal of Clinical and Experimental Dentistry is an Open Access (free access on-line) - http://www.medicinaoral.com/odo/indice.htm. The aim of the Journal of Clinical and Experimental Dentistry is: - Periodontology - Community and Preventive Dentistry - Esthetic Dentistry - Biomaterials and Bioengineering in Dentistry - Operative Dentistry and Endodontics - Prosthetic Dentistry - Orthodontics - Oral Medicine and Pathology - Odontostomatology for the disabled or special patients - Oral Surgery
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