Effect of time on shear bond strength of four orthodontic adhesive systems

Vinagre, Alexandra; Messias, Ana; Gomes, Marcolino; Costa, Ana Luísa; Ramos, João Carlos

doi:10.1016/j.rpemd.2014.08.003

Cited by 9 publications

(16 citation statements)

References 51 publications

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“…TP group reached values of 8.41 ± 2.06 MPa that was similar to shear bond values found in previous studies. 13,14,18 However, shear bond strength values exceeding 15 MPa were also reported in several previous studies. 4,15,16 In this study, TP compomer achieved clinical acceptable values (above 6 MPa), in agreement with some other recent studies.…”

Section: Discussionmentioning

confidence: 52%

“…4,15,16 In this study, TP compomer achieved clinical acceptable values (above 6 MPa), in agreement with some other recent studies. 5,[13][14][15][16]18,19 However, significant differences were recorded for the test adhesives, mainly for G and ED, suggesting an influence of the chemical composition and properties of the adhesive on their bond strength to the teeth surface. 5,[13][14][15][16]18 Despite the decrease in bond strength for TP compomer subjected to thermal fatigue in this study, that is still considered clinically acceptable considering values recorded above 6 MPa in previous studies.…”

Section: Discussionmentioning

confidence: 99%

“…5,[13][14][15][16]18,19 However, significant differences were recorded for the test adhesives, mainly for G and ED, suggesting an influence of the chemical composition and properties of the adhesive on their bond strength to the teeth surface. 5,[13][14][15][16]18 Despite the decrease in bond strength for TP compomer subjected to thermal fatigue in this study, that is still considered clinically acceptable considering values recorded above 6 MPa in previous studies. Additionally, the benefits of such orthodontic adhesives considering fluoride release and prevention of enamel demineralization supported by several studies 3,20 should also be considered on the treatment of caries susceptible patients.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have reported different results considering the effect of thermal cycling on shear bond strength for such compomer -based adhesive. 14,21 For instance, a previous study revealed stable shear bond strength of orthodontic adhesives to enamel after thermal cycling between 5 and 60 o C although samples were tested only for 500 cycles. 14 Another previous study reported a decrease in shear bond strength after 1000 thermal cycles between 4 and 60 o C. Concerning the performance of the materials in oral cavity, additional tests must be performed for longer period of thermal cycling to simulate the orthodontic treatment time.…”

Section: Discussionmentioning

confidence: 99%

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Effect of thermal cycling on the shear bond strength of different orthodontic adhesives to enamel

Neto¹,

Pinho²,

Henriques³

et al. 2017

j.rpemd

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a b s t r a c t a r t i c l e i n f oArticle history: Received 29 September 2016Accepted 14 January 2017 Available online 16 May 2017Objective: The aim of this study was to assess the influence of thermal cycling on the shear bond strength of three types of adhesives used for orthodontic brackets to human enamel.Methods: Sixty six human premolars were used in this study. Two groups of dental resin composite adhesives (ED; G) and one compomer (TP) were thermal cycled from 5 up to 55 °C at 4000 cycles for 45 s in an artificial saliva solution. Then, samples were assessed by shear bond tests and inspected by optical and scanning electron microscopy. The resulting enamel surfaces were then evaluated according to the adhesive remnant index (ARI). Results:One resin composite adhesive (group G) showed the highest shear bond strength values. Thermal cycling negatively affected the bond strength of the compomer-based adhesive although results showed clinically acceptable adhesion values after thermal fatigue for such cycles. ARI showed significant amount of residual material on the tooth surface with the adhesives that indicated strong bonding to enamel. Different adhesion mechanisms were noticed at both adhesive-enamel or adhesive-bracket interfaces. Conclusion:The orthodontic adhesives revealed proper bond strength to enamel for clinical applications considering thermal conditions assessed in this study although the compomer-based adhesive was negatively affected by thermal cycling. The high remnant adhesive amount on enamel indicated high bond strength leading to enamel damage during debonding. Métodos: Foram testados dois grupos de adesivos baseados em resina composta (ED, G) e um grupo à base de um compômero (TP) após adesão de 72 brackets de aço inoxidável a pré-molares extraídos. Cada grupo foi dividido em dois subgrupos, sendo que um deles foi submetido a termociclagem em saliva artificial com variação de temperatura entre 5 e 55 °C.Amostras foram selecionadas para análise das interfaces por microscopia eletrónica de varrimento e os dez dentes restantes de cada um dos seis subgrupos foram submetidos a testes de resistência ao corte em uma máquina universal de testes. As superfícies de esmalte resultantes foram em seguida avaliadas segundo o Índice de Adesivo Remanescente (IAR).

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Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of thermal cycling on the shear bond strength of different orthodontic adhesives to enamel

Neto¹,

Pinho²,

Henriques³

et al. 2017

j.rpemd

View full text Add to dashboard Cite

show abstract

“…These results could be due to the fact that the glass-ionomer-modified group was etched with 10% acrylic acid, while in the composite groups, 37% orthophosphoric acid was used [20]. Moreover, Vinagre et al studied the differences in the SBS values between composite resin, a light-cured composite, and selfetched and concluded that the SBS value could vary over time until debonding in all the materials used [21]. Nevertheless, the contact area between the multibracket appliances and the enamel surface has not been found to influence the SBS of mesh-backed multibracket appliances; hence, the mesh area of multibracket appliances is smaller nowadays [22].…”

Section: Discussionmentioning

confidence: 99%

Area and Volume of Remaining Cement and Enamel after Removal and Polishing of Buccal or Lingual Multibracket Appliances

et al. 2021

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The aim of the present study was to compare the area and volume of remaining cement after lingual and buccal multibracket appliance debonding. Further, the area and volume of cement remaining and the area and volume of enamel were also analyzed using a morphometric digital measurement technique. Ten buccal and 10 lingual multibracket appliances were cemented in 20 extracted teeth embedded into an epoxy resin model simulating a dental arch. The models were scanned before bonding the lingual and buccal multibracket appliances, after debonding the lingual and buccal multibracket appliances, and after polishing the remaining cement. Afterwards, the standard tessellation language (STL) digital files were aligned, segmented, and realigned by using engineer morphometry software. A comparative analysis was performed using Student’s t test statistical analysis. Lingual appliances showed statistically significantly (p < 0.001) less area (7.07 ± 4.85 mm2) and volume (0.87 ± 1.34 mm3) of remaining cement than the area (21.99 ± 4.18 mm2) and volume (p = 0.002) (3.48 ± 0.96 mm3) of buccal appliances. Moreover, lingual appliances showed statistically significantly (p = 0.001) less area (4.48 ± 3.08 mm2) and volume (0.13 ± 0.15 mm3) of remaining cement after polishing than the area (12.22 ± 5.98 mm2) and volume (p = 0.004) (0.70 ± 0.56 mm3) of buccal appliances. Lingual multibracket appliance therapy leads to less area and volume of cement remaining after multibracket appliance debonding and less area and volume of cement remaining after cement polishing than buccal multibracket appliance therapy; however, the area and volume of enamel removed after cement polishing were similar between both lingual and buccal multibracket appliance therapies.

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Analysis of shrinkage stresses arising during polymerization of orthodontic adhesive systems

Małkiewicz,

Krasowski,

Bartczak

et al. 2023

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The aim of the study was to evaluate the shrinkage stress during cross-linking of compositeorthodontic adhesive systems. The elastic-optical method was used for shrinkage stress analysis. Basedon the obtained results, basic statistics were determined, including averages and standard deviations.For the comparative analysis of the mean values, the Tukey HSD test was used at the significance levelα = 0.05. The average value of shrinkage stress during cross-linking ranged from 7.2 to 11.5 MPa.

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Effect of time on shear bond strength of four orthodontic adhesive systems

Cited by 9 publications

References 51 publications

Effect of thermal cycling on the shear bond strength of different orthodontic adhesives to enamel

Effect of thermal cycling on the shear bond strength of different orthodontic adhesives to enamel

Area and Volume of Remaining Cement and Enamel after Removal and Polishing of Buccal or Lingual Multibracket Appliances

Analysis of shrinkage stresses arising during polymerization of orthodontic adhesive systems

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