The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”
Elkady, R., Abd El-Geleel, O., Abdelaziz, A. (2020). The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”. EKB Journal Management System, 66(Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry)), 1923-1930. doi: 10.21608/edj.2020.33612.1159
Reem Essam Elkady; Ola mohamed Abd El-Geleel; Amr Abdelaziz. "The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”". EKB Journal Management System, 66, Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry), 2020, 1923-1930. doi: 10.21608/edj.2020.33612.1159
Elkady, R., Abd El-Geleel, O., Abdelaziz, A. (2020). 'The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”', EKB Journal Management System, 66(Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry)), pp. 1923-1930. doi: 10.21608/edj.2020.33612.1159
Elkady, R., Abd El-Geleel, O., Abdelaziz, A. The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”. EKB Journal Management System, 2020; 66(Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry)): 1923-1930. doi: 10.21608/edj.2020.33612.1159

The Effect Of ER,Cr.YSGG Laser on the Shear Bond Strength of Composite Resin Bonded to Primary Enamel “An in-vitro study”

Egyptian Dental Journal
Article 2, Volume 66, Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry), October 2020, Page 1923-1930  XML PDF (294.05 K)
Document Type: Original Article
DOI: 10.21608/edj.2020.33612.1159
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Authors
Reem Essam Elkady1; Ola mohamed Abd El-Geleel email orcid 2; Amr Abdelazizorcid 3
1Pediatric dentistry department, Misr International University
2Pediatric Dentistry and Dental Public health Dept. Ain Shams university
3Pediatric dentistry department, Ainshams university, cairo, egypt
Abstract
surface treatment is one of the most important factors that affect the bond strength of composite resin restorations. Lasers have been studied as surface pretreatment agents with limited applications in primary teeth. Primary enamel pre-conditioning using Er, Cr:YSGG yielded controversial results as regards to enhancing enamel bond strength of composite resins to primary enamel.
Aim: The aim of the study is to evaluate and compare the shear bond strength of composite resin bonded to enamel which is pretreated using conventional phosphoric acid etchant and Er,Cr:YSGG laser.
Materials and Methods: Thirty extracted human primary molar teeth were divided into three groups, (N=10) in each (Groups I,II and III). Group I, prepared surface of enamel was etched using 37% phosphoric acid (Scotchbond, 3M). Group II, enamel was surface treated by an Er, Cr: YSGG laser system (Waterlase MD, Biolase Technology Inc., San Clemente, CA, USA) and Group III, a combination of etching and laser treatment was performed. The bonding agent (Scotchbond Multipurpose, 3M) was then applied over the test areas and light cured. Composite resin (Filtek ™ Z250 XT Nano-hybrid Universal restorative, 3M Espe) was later applied and light cured. The samples were finally tested for the shear bond strength.
Results: The Mean shear bond strength for Group III was the highest (23.2 ± 0.44MPa) Followed by Group I (17.4 ± 0.66MPa), these values were significantly higher (P < 0.01) than that of Group II (10.1 ± 0.71MPa).
Conclusion: ER,Cr.YSGG laser pretreatment of primary enamel cannot replace the acid etching.
Keywords
primary enamel etching; laser etching; shear bong strength; phosphoric acid etching; Erbium Chromium yttrium scandium gallium garnet laser
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