Hachem, I., Elgemeay, W., Ghali, R., Elkadi, A. (2023). Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study. Dental Science Updates, 4(1), 35-43. doi: 10.21608/dsu.2023.125963.1118
Ibrahim Fouad Hachem; Walaa Elsayed Mohamed Elgemeay; Rami Maher Ghali; Abbadi Elkadi. "Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study". Dental Science Updates, 4, 1, 2023, 35-43. doi: 10.21608/dsu.2023.125963.1118
Hachem, I., Elgemeay, W., Ghali, R., Elkadi, A. (2023). 'Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study', Dental Science Updates, 4(1), pp. 35-43. doi: 10.21608/dsu.2023.125963.1118
Hachem, I., Elgemeay, W., Ghali, R., Elkadi, A. Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study. Dental Science Updates, 2023; 4(1): 35-43. doi: 10.21608/dsu.2023.125963.1118
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study
1Orthodontics, faculty of dentistry, Suez canal university, Ismailia, Egypt.
2Department of Orthodontics, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
3Prosthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
4Professor of Orthodontic Faculty of Dentistry King Salman International University Suez Canal University
Abstract
Abstract Introduction: Ceramic brackets debonding is considered a clinical challenge due to their low fracture toughness and high shear bond strength. The shear bond strength must be reduced to facilitate removal. Aim: Debonding polycrystalline ceramic brackets with Er: YAG and Er, Cr: YSGG lasers, and comparing their impacts on adhesive remnant index (ARI) and enamel surface roughness (ESR) to the traditional debonding technique. Materials & Methods: 60 polycrystalline ceramic brackets were bonded to 60 extracted premolars and divided into 3 groups: group 1(control group) contained 12 premolars that were debonded conventionally with a debonding plier, group 2:contained 24 premolars that were debonded with Er, Cr: YSGG laser and was divided into two equal subgroups: group 2A: the samples were irradiated with Er, Cr: YSGG laser at power 9 W & group 2B: the samples were irradiated with Er, Cr: YSGG laser at power 6 W, & group 3: contained 24 premolars that were debonded with Er: YAG laser and was divided into two equal subgroups: group 3A: the samples were irradiated with Er: YAG laser at power 9 W & group 3B: the samples were irradiated with Er: YAG laser at power 6 W. The debonded samples were examined using a scanning electron microscope (SEM) at 20x magnification for ARI scoring and at 60x magnification forenamel surface roughness after polishing. Results: Regarding ARI, the results showed that group 2A had the highest percentage for score 0 and group 3A for score 2, whileregarding ESR, group 2B had the highest percentage for score 2. Conclusion: Whencompared to the traditional procedure, using Er, Cr: YSGG and Er: YAG lasers to debond polycrystalline ceramic brackets may reduce the risk of enamel damage.
View on SCiNiTO
Top