Shear Bond Strength of Resin Modified Glass Ionomer Filling Material in Primary Molars Prepared by bond prep mode and cutting mode Er,Cr:YSGG Laser | ||||
| Egyptian Dental Journal | ||||
| Article 13, Volume 64, Issue 4 - October (Orthodontics, Pediatric & Preventive Dentistry), October 2018, Page 3039-3046 PDF (723.8 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2018.78278 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Ayman Abdel Hamid Abdallah Sabah | ||||
| Lecturer Pediatric Dentistry and Orthodontic Department, Faculty of Oral and Dental medicine, Misr International University | ||||
| Abstract | ||||
| Introduction: The family of erbium laser which has two different wavelengths including Er:YAG laser (2940 nm) and Er,Cr:YSGG laser (2780 nm) is an effective device for cutting dental hard tissue due to their high absorption in water and hydroxyapatite that makes them suitable for cavity preparation. Cavity preparation using laser has some advantages such as reduced pain and vibration during the procedure and providing patient’s comfort which is the key factor in pediatric dentistry. Materials and methods: The purpose of the present study is to compare and evaluate the effect bond prep mode and cutting mode of Er,Cr:YSGG Laser on shear bond strength of glass ionomer (GI) cement and resin modified glass ionomer (RMGI) filling materials applied on flattened buccal and lingual surface on forty-eight freshly extracted caries-free human primary molars divided into 2 groups and each group is subdivided into 2 subgroups each according to the mode of preparation: group 1: bond prep mode Er,Cr:YSGG laser; group 2: Er,Cr:YSGG cutting mode. The samples will be subjected to universal testing machine. Results: The mean (SD) values for shear bond strength of Bond prep and cutting modes regardless of restorative material were 22.9 (5.3) and 20.7 (5.2), respectively. There was no statistically significant difference between the two preparation modes. There was no statistically significant difference between Bond prep and cutting modes whether using GI (P-value = 0.433, Effect size = 0.014) or with RMGI (P-value = 0.051, Effect size = 0.085). Comparison between the two restorative materials revealed that GI showed statistically significantly lower mean shear bond strength than RMGI whether using Bond prep mode (P-value <0.001, Effect size = 0.345) or cutting mode (P-value = 0.001, Effect size = 0.226). Conclusion: Er,Cr:YSGG laser have adverse effect on the adhesion of RMGI and GI, bond prep mode is better than cutting mode and RMGI is preferred than GI clinically. | ||||
| Keywords | ||||
| Shear bond strength; Er; Cr:YSGG Laser; bond prep mode; resin modified glass | ||||
|
Statistics Article View: 335 PDF Download: 197 |
||||
