Evaluation of the debonding characteristics of 2 ceramic brackets: an in vitro study

Theodorakopoulou, Lina P; Sadowsky, P.L.; Jacobson, Alex; Lacefield, William R.

doi:10.1016/j.ajodo.2003.04.015

Cited by 66 publications

(50 citation statements)

References 26 publications

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“…6 A small number of studies are available regarding enamel detachments during debonding (very few were conducted in vivo), and the related findings are often contradictory. 4,7,24,25 One possible explanation for this fact is that enamel damage is more likely to occur in extracted teeth, as they are more desiccated than vital teeth. 24 Another limitation of some studies 4 is that they did not adopt an adequate SEM magnification (203) to distinguish enamel from resin.…”

Section: Discussionmentioning

confidence: 99%

Bracket base remnants after orthodontic debonding

Zanarini

Gracco

Lattuca

et al. 2013

The Angle Orthodontist

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Objective: To evaluate whether the debonding procedure leads to restitutio ad integrum of the enamel surface by investigating the presence of enamel within the bracket base remnants after debonding. Materials and Methods: Sixty patients who completed orthodontic treatment with fixed appliances were included. A total of 1068 brackets were microphotographed; the brackets presenting some remnants on the base (n 5 818) were selected and analyzed with ImageJ software to measure the remnant area. From this population a statistically significant sample (n 5 100) was observed under a scanning electron microscope to check for the presence of enamel within the remnants. Energy dispersive x-ray spectrometry was also performed to obtain quantitative data. Results: Statistically significant differences in the remnant percentage between arches were observed for incisor and canine brackets (P , .0001 and P 5 .022, respectively). From a morphologic analysis of the scanning electron micrographs the bracket bases were categorized in 3 groups: group A, bases presenting a thin enamel coat (83%); group B, bases showing sizable enamel fragments (7%); group C, bases with no morphologic evidence of enamel presence (10%). Calcium presence was noted on all evaluated brackets under energy dispersive x-ray spectrometry. No significant difference was observed in the Ca/Si ratio between group A (16.21%) and group B (18.77%), whereas the Ca/Si ratio in group C (5.40%) was significantly lower than that of the other groups (P , .323 and P 5 .0001, respectively). Conclusion: The objective of an atraumatic debonding is not achieved yet; in some cases the damage could be clinically relevant. (Angle Orthod. 2013;83:885-891.)

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Section: Discussionmentioning

confidence: 99%

Bracket base remnants after orthodontic debonding

Zanarini

Gracco

Lattuca

et al. 2013

The Angle Orthodontist

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“…Plastic brackets, mainly made on polycarbonate, have been improved in their structure and base design to achieve good bonding 7) . In turn, ceramic brackets afford high bond strengths 8) which, given the lack of ductility, may entail a risk of damage to the enamel during debonding 9) . The importance of curing efficiency with regards to the performance of composites is well established, as the biological, physical and mechanical properties of these materials are influenced by the degree of monomer-topolymer conversion achieved during the polymerization process 10) .…”

Section: Introductionmentioning

confidence: 99%

Influence of the bracket on bonding and physical behavior of orthodontic resin cements

et al. 2015

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The aim of the study is to determine the influence of the type of bracket, on bond strength, microhardness and conversion degree (CD) of four resin orthodontic cements. Micro-tensile bond strength (µTBS) test between the bracket base and the cement was carried out on glass-hour-shaped specimens (n=20). Vickers Hardness Number (VHN) and micro-Raman spectra were recorded in situ under the bracket base. Weibull distribution, ANOVA and non-parametric test were applied for data analysis (p<0.05). The highest values of ή as well as the β Weibull parameter were obtained for metallic brackets with Transbond™ plastic brackets with the self-curing cement showing the worst performance. The CD was from 80% to 62.5%.

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“…While some studies have reported no enamel damage when debonding ceramic brackets with the appropriate pliers, other researchers have reported an increase in enamel cracks or crack length following debonding [9][10][11].…”

Section: Resultsmentioning

confidence: 99%

“…The debonding pliers are unique because the force is applied at the bracket-adhesive interface on both sides of the bracket base simultaneously. Several studies have reported no enamel damage when debonding ceramic brackets with the appropriate pliers [9,10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Debonding Characteristics of Conventional and New Debonding Instrument used for Ceramic, Composite and Metallic Brackets – An Invitro Study

Choudhary

Gill

Reddy

et al. 2014

JCDR

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Background: Debonding procedure is time consuming and damaging to the enamel if performed with improper technique. Various debonding methods include: the conventional methods that use pliers or wrenches, an ultrasonic method, electrothermal devices, air pressure impulse devices, diamond burs to grind the brackets off the tooth surface and lasers. Among all these methods, using debonding pliers is most convenient and effective method but has been reported to cause damage to the teeth. Recently, a New Debonding Instrument designed specifically for ceramic and composite brackets has been introduced. As this is a new instrument, little information is available on efficacy of this instrument. The purpose of this study was to evaluate the debonding characteristics of both "the conventional debonding Pliers" and "the New debonding instrument" when removing ceramic, composite and metallic brackets.

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Evaluation of the debonding characteristics of 2 ceramic brackets: an in vitro study

Cited by 66 publications

References 26 publications

Bracket base remnants after orthodontic debonding

Bracket base remnants after orthodontic debonding

Influence of the bracket on bonding and physical behavior of orthodontic resin cements

Comparison of the Debonding Characteristics of Conventional and New Debonding Instrument used for Ceramic, Composite and Metallic Brackets – An Invitro Study

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