Comparison of shear bond strength and bonding time of metal flash free orthodontic bracket
Başlık çevirisi mevcut değil.
- Tez No: 512326
- Danışmanlar: PROF. MUSTAFA HALUK İŞERİ
- Tez Türü: Yüksek Lisans
- Konular: Diş Hekimliği, Dentistry
- Anahtar Kelimeler: Flash free b, Dental bonding, Dental stres analizi, Dental çimentolar, Ortodonti, Ortodontik aygıtlar, Ortodontik braketler, Dental bonding, Dental stress analysis, Dental cements, Orthodontics, Orthodontic appliances, Orthodontic brackets
- Yıl: 2018
- Dil: İngilizce
- Üniversite: İstanbul Yeni Yüzyıl Üniversitesi
- Enstitü: Sağlık Bilimleri Enstitüsü
- Ana Bilim Dalı: Ortodonti Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
Purpose: The purpose of this in vitro study is to compare the shear bond strength and bonding time between metal flash-free brackets and conventional metal brackets. Remaining adhesive following removal of orthodontic brackets was also assessed. Materials and Methods: Forty five intact human premolars (N =45, n = 15 per group) were selected and randomly divided into three groups. Group1: Smart clip brackets used as control group, Group 2: Smart clip APC II flash-free adhesive coated brackets used as first experimental group, Group 3: Smart clip APC plus adhesive coated brackets used as second experimental group. The bonding time was calculated after the teeth were prepared until the brackets placed in the ideal position in seconds. Shear bond strength (SBS) for each sample was measured. Samples were then examined under X 8 magnification light microscopy to assess the remaining adhesive. The shear bond strength, bonding time and remaining adhesive of each group were statistically compared using t-test p<0.05. Results: The mean bonding time of smart clip group (40.1140) had significantly difference when compared with APC II group (31.0560) (p=0.00), and did not show significant difference when compared with the smart clip APC plus (39.5431) group (p=0.638). The mean shear bond strength of smart clip group had significantly higher mean shear bond strength value (11.25120) when compared with APC II (9.42347) and APC plus (8.42867) group (p=0.00 , p=0.00 respectively). The mean residual adhesive of smart clip group (1.73) did not show significant difference when compared with APC II group (1.93) (p=0.558). The mean ARI of smart clip group had significantly higher mean ARI value (1.73) when compared with APC plus (0.87) group (p=0.033). onclusions: APC flash-free adhesive coated bracket systems had shear bond strength clinically acceptable. The APC flash free adhesive system is able to decrease the time needed for orthodontic bracket bonding. More adhesive remaining on the bracket appear to be favorable to save chair time during debonding but increase the risk of enamel surface damage due to enamel fracture on bracket removal.
Özet (Çeviri)
Purpose: The purpose of this in vitro study is to compare the shear bond strength and bonding time between metal flash-free brackets and conventional metal brackets. Remaining adhesive following removal of orthodontic brackets was also assessed. Materials and Methods: Forty five intact human premolars (N =45, n = 15 per group) were selected and randomly divided into three groups. Group1: Smart clip brackets used as control group, Group 2: Smart clip APC II flash-free adhesive coated brackets used as first experimental group, Group 3: Smart clip APC plus adhesive coated brackets used as second experimental group. The bonding time was calculated after the teeth were prepared until the brackets placed in the ideal position in seconds. Shear bond strength (SBS) for each sample was measured. Samples were then examined under X 8 magnification light microscopy to assess the remaining adhesive. The shear bond strength, bonding time and remaining adhesive of each group were statistically compared using t-test p<0.05. Results: The mean bonding time of smart clip group (40.1140) had significantly difference when compared with APC II group (31.0560) (p=0.00), and did not show significant difference when compared with the smart clip APC plus (39.5431) group (p=0.638). The mean shear bond strength of smart clip group had significantly higher mean shear bond strength value (11.25120) when compared with APC II (9.42347) and APC plus (8.42867) group (p=0.00 , p=0.00 respectively). The mean residual adhesive of smart clip group (1.73) did not show significant difference when compared with APC II group (1.93) (p=0.558). The mean ARI of smart clip group had significantly higher mean ARI value (1.73) when compared with APC plus (0.87) group (p=0.033). Conclusions: APC flash-free adhesive coated bracket systems had shear bond strength clinically acceptable. The APC flash free adhesive system is able to decrease the time needed for orthodontic bracket bonding. More adhesive remaining on the bracket appear to be favorable to save chair time during debonding but increase the risk of enamel surface damage due to enamel fracture on bracket removal.
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