Clinical performance of precoated brackets and self-etch bonding technique: a prospective comparative study

Atik, Ezgi; Gorucu-Coskuner, Hande; Taner, Tülin

doi:10.1007/s00784-018-2746-x

Cited by 7 publications

(4 citation statements)

References 30 publications

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“…In the present study, specimens with BARI scores of 5 were investigated using SEM-EDS. They were chosen because this kind of adhesive failure is particularly dangerous for the enamel structure [6,7,11,23,35,36]. Although during macroscopic observation, no adhesive on the bracket base was detected, the SEM images showed not only the microstructure of the bracket base but also the presence of adhesive remnants.…”

Section: Discussionmentioning

confidence: 99%

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The Influence of Indirect Bonding Technique on Adhesion of Orthodontic Brackets and Post-Debonding Enamel Integrity—An In Vitro Study

Nawrocka,

Piwonski,

Nowak

et al. 2023

Materials

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The increasing demand for orthodontic treatments due to the high prevalence of malocclusion has inspired clinicians and material scientists to investigate innovative, more effective, and precise bonding methods with reduced chairside time. This study aimed at comparing the shear bond strength (SBS) of metal and ceramic brackets bonded to enamel using the indirect bonding technique (IDB). Victory Series metal brackets (Metal-OPC, Metal-APC) and Clarity™ Advanced ceramic brackets (Ceramic-OPC) (3M Unitek, Monrovia, CA, USA) were bonded indirectly to extracted human premolars through the etch-and-rinse technique. A qualitative assessment of the enamel surface using microscopic methods was performed, and the amount of residual adhesive was reported as per the adhesive remnant index (ARI). Moreover, the bracket surface was evaluated with SEM-EDS. The highest SBS mean values were observed in the Ceramic-OPC group (16.33 ± 2.01 MPa), while the lowest ones were obtained with the Metal-OPC group (11.51 ± 1.40 MPa). The differences between the Metal-AOPC vs. Metal-APC groups (p = 0.0002) and the Metal-OPC vs. Ceramic-OPC groups (p = 0.0000) were statistically significant. Although the Ceramic-OPC brackets bonded indirectly to the enamel surface achieved the highest SBS, the enamel damage was significantly higher compared to that of the other groups. Thus, considering the relatively high bond SBS and favourable debonding pattern, Metal-APC brackets bonded indirectly may represent the best choice.

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Section: Discussionmentioning

confidence: 99%

“…The first APC orthodontic brackets were introduced in 1991 (Mini Unitwin, 3M, Unitek) [4,6,7]. At that time, such ready-to-use brackets with the bases covered with a composite were chemically cured on the enamel using orthodontic adhesives (two-paste systems), which was a huge step forward in improving the bonding procedure [4,5].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Indirect Bonding Technique on Adhesion of Orthodontic Brackets and Post-Debonding Enamel Integrity—An In Vitro Study

Nawrocka,

Piwonski,

Nowak

et al. 2023

Materials

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“…Enamel etching with a laser can produce acceptable bond strengths but is associated with a fractured, grooved enamel surfaces and abundant AR post bracket debonding comparable to that of the CAE approach [5], whereas RMGIC leaves minimal AR and enamel damage but is associated with inadequate bracket retention [12]. On the other hand, self-etching primers (SEPs) provide simultaneous etching and priming functions, which is more convenient for both the clinician and patient due to chairside time savings and reliable bond strengths [13,14]. However, there is debate as to whether the amount of adhesive left after debonding is less than or the same as that of the CAE technique, and enamel damage after bracket debonding could not be eliminated [4,15,16].…”

Section: Introductionmentioning

confidence: 99%

Development of a remineralizing calcium phosphate nanoparticle-containing self-etching system for orthodontic bonding

Garma

Ibrahim

2022

Clin Oral Invest

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Objectives This study aimed to incorporate hydroxyapatite nanoparticles (nHA) or amorphous calcium phosphate nanoparticles (nACP) into a self-etch primer (SEP) to develop a simplified orthodontic bonding system with remineralizing and enamel preserving properties. Materials and Methods nHA and nACP were incorporated into a commercial SEP (Transbond™ plus) in 7% weight ratio and compared with the plain SEP as a control. Shear bond strengths (SBS), enamel damage, and adhesive remnant index (ARI) scores were evaluated at 24 h and post 5000 thermocycling. Field-emission scanning electron microscope (FESEM) was used to inspect the distribution of the nanoparticles in the experimental SEPs and evaluate the enamel surface integrity both before bracket bonding and post bracket debonding. Phase determination and remineralizing capability of the modified SEP were characterized by X-ray diffraction and Raman spectroscopy, respectively. Results The addition of nHA or nACP to the SEP significantly reduced the SBS, ARI, and enamel damage (p < 0.05) as compared to the control SEP; however, only nHA-SEP survived the thermocycling protocol and yielded acceptable SBS (13.38 MPa). Enamel remineralizing ability of the developed nHA-SEP was confirmed by both FESEM images and Raman phosphate map. Conclusions Incorporating nHA into SEP resulted in clinically acceptable bond strengths with remineralizing ability. Clinical relevance The newly developed nHA-SEP has unprecedented ability to simultaneously etch, prime, and remineralize the enamel in a single step leaving immaculate enamel surface with the potential of saving cost and time at the post-debonding step.

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“…The resin adhesive at the bracket-enamel interface is constantly loaded by the forces applied by orthodontic wires and thus a viscoelastic deformation is anticipated. Although there is no, until today, clinically based evidence, creep may be associated with bracket debonding [ 14 , 15 ]. On the other hand, in fixed retainers, orthodontic adhesives are constantly loaded by the tensile properties exerted by orthodontic wire and thus viscoelastic deformation is also anticipated.…”

Section: Introductionmentioning

confidence: 99%

Creep, Hardness, and Elastic Modulus of Lingual Fixed Retainer Adhesives

et al. 2019

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The aims of this study were twofold: a) to characterize a wide array of time-independent and -dependent properties and b) to find possible correlations among the properties tested. Seven commercially available orthodontic adhesives were included in this study and ten cylindrical specimens were prepared from each material. Five specimens from each material were used for the characterization of Martens Hardness (HM), indentation modulus (EIT), and elastic index (ηIT), and the remaining five for the determination of indentation creep (CIT). Al the aforementioned properties were identified by employing an Instrumented Indentations Testing (IIT) device with a Vickers indenter. The results of HM, EIT, ηIT, and CIT were statistically analyzed by one way ANOVA and Tukey post hoc test, while the possible correlations among the aforementioned properties were determined by Spearman correlation test. Statistical significant differences were identified for all properties among the materials tested. Spearman correlation reveals that HM has a positive correlation with EIT. Both properties demonstrated a negative correlation with ηIT and CIT, while no correlation was identified between ηIT and CIT. Significant differences in the mechanical properties tested may also imply differences in their clinical behavior and efficacy.

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Clinical performance of precoated brackets and self-etch bonding technique: a prospective comparative study

Cited by 7 publications

References 30 publications

The Influence of Indirect Bonding Technique on Adhesion of Orthodontic Brackets and Post-Debonding Enamel Integrity—An In Vitro Study

The Influence of Indirect Bonding Technique on Adhesion of Orthodontic Brackets and Post-Debonding Enamel Integrity—An In Vitro Study

Development of a remineralizing calcium phosphate nanoparticle-containing self-etching system for orthodontic bonding

Creep, Hardness, and Elastic Modulus of Lingual Fixed Retainer Adhesives

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