Evaluation of the bond strength of light-cure and chemical-cure adhesive systems over time: an <i>in-vivo</i> study using a new force gauge

Omidkhoda, Maryam; Shahabi, Mostafa; Fakharian, Mehrnaz; Rangrazi, Abdolrasoul

doi:10.1088/2053-1591/ab2b5b

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…Similarly, a later study [18] reported higher shear bond strength of 15.49MPa for the light-cure adhesive, while that for the self-cure adhesive was 12.26MPa. This, however, differs from that reported in two other studies [22,23] in which lower bond strength was reported for the light-cure adhesives, with both reporting the bond strength of the light-cure adhesives to be nearly half of the self-cure. Toledano et al [22] also reported a lower bond strength of 35.96MPa…”

Section: Discussioncontrasting

confidence: 99%

“…for the light-cure adhesive and 71.31MPa for the self-cure adhesive. This much lower bond strength of the lightcure adhesive is possibly due to incomplete polymerization [22][23][24]. However, bond strengths recorded for the light-cure (Light Bond (R) ) and self-cure (Rely.a.Bond (R) ) adhesive systems recorded in the present study show that both adhesive types meet the reported minimum clinically adequate shear bond strength of 6-8MPa reported in the literature [25].…”

Section: Discussionmentioning

confidence: 99%

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Comparative Study of the Shear Bond Strengths and Bracket Failure Rates of Two Orthodontic Adhesive Systems

Okeke

Utomi

Folaranmi

2022

Pesqui. Bras. Odontopediatria Clín. Integr.

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Objective: To evaluate and compare the shear bond strengths (SBS) and bracket failure rates (BFR) of orthodontic brackets bonded with Light Cure adhesive against those bonded with Self Cure adhesive. Material and Methods:The study had in vitro and in vivo parts. In the in vitro part to determine SBS of Light Bond(LB) (R) and Rely.a.Bond(RB) (R) adhesives used in bonding brackets to 88 extracted teeth, each adhesive type was used to bond 44 brackets. The clinical study was conducted to determine the BFR of the LB (R) and RB (R) adhesives by bonding 256 teeth using each adhesive type. A standardized bonding procedure was followed in both the in vitro and in vivo parts of the study. Data were analyzed using frequency, percentage, mean, independent t-test, chi-square, and Pearson Correlation statistics. A p-value of ≤ 0.05 was considered significant. SPSS version 21.0 was used to analyze the data generated. Results: There was a significantly higher mean SBS 10.6MPa for LB (R) adhesive than the 7.0MPa of the RB (R) adhesive. In the in vivo study, (LB) (R) had a greater but not significant BFR of 9.0% than RB (R) (8.0%). No significant relationship existed between the SBS of either adhesive type (as determined in vitro) and their BFR in vivo. Conclusion: Higher SBS of LB (R) did not translate to less BFR in the clinic, nor did a lower SBS of RB (R) translate to more BFR in the clinic.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Comparative Study of the Shear Bond Strengths and Bracket Failure Rates of Two Orthodontic Adhesive Systems

Okeke

Utomi

Folaranmi

2022

Pesqui. Bras. Odontopediatria Clín. Integr.

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“…Similarly, Omidkhoda et al . [ 14 ] compared the in vivo SBS values of no mix Unite and Transbond-XT and reported significantly higher SBS in the Unite group, which was consistent with the result of this study. Likewise, Ravadgar et al .…”

Section: Discussionsupporting

confidence: 89%

Evaluation of bond strength of orthodontic brackets using light- and chemical-cure adhesive systems over time: An in vitro study

Omidkhoda

Eslami

Mazloum

et al. 2023

Journal of Orthodontic Science

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AIMS: This study aimed to evaluate the bond strength of light- and chemical-cure adhesive systems over six months. MATERIALS AND METHODS: A total of 144 sound human maxillary first and second premolars were randomly divided into six groups according to the adhesive type (i.e., Transbond XT and Unite) and evaluation time. The groups were T0 (24-h group without thermocycling), T1 (24-h group with thermocycling), T2 (1-month group), T3 (2-month group), T4 (4-month group), and T5 (6-month group). The bond strength was then measured and the data were analyzed by SPSS software (version 23) through the independent t-test and one-way ANOVA. A P value less than 0.05 was considered statistically significant. RESULTS: The results of this study showed that shear bond strength of chemical-cure orthodontic adhesive (Unite, 15.37 MPa) at all-time points was significantly 1.37 times higher than that of the Transbond XT light-cure adhesive (11.15 MPa). Moreover, shear bond strength of self-cure adhesive (Unite) 1 month after debonding showed a significant difference with the 24-h group without thermocycling ( P = 0.002), 24-h group with thermocycling ( P = 0.008), and 6-month group ( P = 0.016). The highest shear bond strength in both adhesives was observed at one month. Furthermore, the shear bond strength of Transbond XT light-cure adhesive one month after debonding showed a significant difference with the 24-h group without thermocycling ( P = 0.000) and 24-h group with thermocycling ( P = 0.000), as well as with the 2-month ( P = 0.008), 4-month ( P = 0.000), and 6-month groups ( P = 0.016). CONCLUSION: Unite self-cure adhesive compared to Transbond XT light-cure adhesive has higher bond strength and is recommended for rebonding brackets in patients with multiple rebonds.

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“…The bond strength of the bracket bonding system has a major role in withstanding against orthodontic forces and other mechanical forces in the oral cavity to achieve the precise control of tooth movement. 28 In the present study, we evaluated the SBS of an orthodontic adhesive containing different concentrations of chitosan NPs and TiO 2 NPs. Our results showed that SBS did not change significantly with increasing the concentration of NPs up to 1% chitosan NPs and 1% TiO 2 NPs, but decreased in 1.5% chitosan NPs and 1.5% TiO 2 NPs.…”

Section: Discussionmentioning

confidence: 99%

Effect of the Incorporation of Chitosan and TiO₂ Nanoparticles on the Shear Bond Strength of an Orthodontic Adhesive: An In Vitro Study

Farzanegan

Shafaee

Darroudi

et al. 2021

Journal of Advanced Oral Research

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Aim: This in vitro study was aimed to evaluate the effect of adding different concentrations of chitosan nanoparticles (NPs) and TiO2 NPs on the shear bond strength (SBS) of an orthodontic adhesive. Materials and Methods: In this in vitro study, 72 extracted human premolars were embedded in an acrylic resin and randomly allocated into four groups of 18 specimens. In group 1 (control), brackets were bonded to the tooth with the Transbond XT orthodontic adhesive. In groups 2, 3, and 4, 0.5% chitosan NPs and 0.5% TiO2 NPs, 1% chitosan NPs and 1% TiO2 NPs, and 1.5% chitosan NPs and 1.5% TiO2 NPs were added to Transbond XT, respectively. Then, the brackets were bonded by the modified adhesive. The SBS and adhesive remnant index (ARI) of each group were assessed with a universal testing machine. The SBS test results were analyzed using one-way analysis of variance followed by the posthoc Tukey’s honestly significant difference (HSD) test. The Kruskal–Wallis test was also applied to evaluate the ARI scores. Results: The results showed no statistically significant difference between groups 1, 2, and 3, but SBS decreased significantly in group 4. With increasing the concentration of NPs up to 1% chitosan NPs and 1% TiO2 NPs, SBS did not change significantly. However, in 1.5% chitosan NPs and 1.5% TiO2 NPs, SBS decreased compared to the other three groups. No significant differences were found between the groups in terms of ARI scores. Conclusion: It is concluded that the orthodontic composite containing 1% chitosan NPs and 1% TiO2 NPs has adequate SBS for use in the clinical setting.

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Evaluation of the bond strength of light-cure and chemical-cure adhesive systems over time: an in-vivo study using a new force gauge

Cited by 4 publications

References 13 publications

Comparative Study of the Shear Bond Strengths and Bracket Failure Rates of Two Orthodontic Adhesive Systems

Comparative Study of the Shear Bond Strengths and Bracket Failure Rates of Two Orthodontic Adhesive Systems

Evaluation of bond strength of orthodontic brackets using light- and chemical-cure adhesive systems over time: An in vitro study

Effect of the Incorporation of Chitosan and TiO₂ Nanoparticles on the Shear Bond Strength of an Orthodontic Adhesive: An In Vitro Study

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Evaluation of the bond strength of light-cure and chemical-cure adhesive systems over time: an in-vivo study using a new force gauge

Cited by 4 publications

References 13 publications

Comparative Study of the Shear Bond Strengths and Bracket Failure Rates of Two Orthodontic Adhesive Systems

Comparative Study of the Shear Bond Strengths and Bracket Failure Rates of Two Orthodontic Adhesive Systems

Evaluation of bond strength of orthodontic brackets using light- and chemical-cure adhesive systems over time: An in vitro study

Effect of the Incorporation of Chitosan and TiO2 Nanoparticles on the Shear Bond Strength of an Orthodontic Adhesive: An In Vitro Study

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Effect of the Incorporation of Chitosan and TiO₂ Nanoparticles on the Shear Bond Strength of an Orthodontic Adhesive: An In Vitro Study