Effects of different sizes of occlusal metal on curing depth of light-cured orthodontic band cement

Namura, Yasuhiro; Tsuruoka, Takashi

doi:10.1016/j.ajodo.2005.10.008

Cited by 5 publications

(9 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among several methods to determine the DC% of orthodontic adhesives, FT-IR has been proven to be a powerful technique and has been widely used as a reliable method, [5][6][7][8][9]11,14 based on the determination of the CϭC stretching vibrations directly before and after curing of materials. However, the method has some limitations.…”

Section: Discussionmentioning

confidence: 99%

“…Although many studies have investigated the bonding strength provided by various combinations of light-cured orthodontic adhesives with different light sources and times, [1][2][3][4] limited information has been presented with regard to the degree of conversion (DC%) of the resin material after light curing. [5][6][7][8] The DC% relates not only to the bond strength but also to other properties of the adhesive such as solubility and degradation. 7,9 Potential biological adverse reactions of the monomer have gained special interest in light of new evidence showing that resins may release Bis-phenol A, a Bis-GMA precursor that exhibits estrogenicity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Degree of Monomer Conversion of Orthodontic Adhesives Using a Glass-Fiber Layer under the Bracket

Shinya

Lassila

et al. 2009

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To test the hypothesis that there is no difference in the degree of conversion (DC%) of orthodontic composites during the light-curing process with or without the use of a glass-fiber reinforcement. Materials and Methods: Two light-curing orthodontic adhesives, Transbond XT (TB) and Beauty Ortho Bond (BO), were used with woven preimpregnated glass fibers. The degree of monomer conversion was determined for both adhesives in three settings (n ϭ 5 per group): in the first group, the adhesive was cured without a bracket (control); in the second group, the bracket was bonded using adhesive without fiber reinforcement; and in the third group, a layer of glass-fiber net was added between the bracket and resin. The adhesive resin was light cured, and the DC% was determined by Fourier transform infrared spectroscopy. Results: A two-way analysis of variance revealed significant differences in the DC% (P Ͻ .001) between adhesives and between the fiber-reinforced and nonreinforced groups. When the nonreinforced adhesives were light cured under the brackets, the DC% was significantly lower (TB: 37.0%, SD 3.4; BO: 36.9%, SD 1.9) compared with the control (TB: 54.7%, SD 0.6; BO: 65.9%, SD 0.5). A higher DC% was found when the resin was light cured in the presence of a glass-fiber net (TB: 44.1%, SD 0.3; BO: 55.3%, SD 1.7). Conclusion:The hypothesis is rejected. The degree of monomer conversion of the light-curing adhesive resin under stainless steel bracket can be improved by adding a thin layer of glassfiber-reinforced composite between the bracket and adhesive resin. (Angle Orthod. 2009;79: 546-550.)

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Degree of Monomer Conversion of Orthodontic Adhesives Using a Glass-Fiber Layer under the Bracket

Shinya

Lassila

et al. 2009

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…6,10 Due to prolonged use in the oral cavity, the orthodontic band adhesives should have certain physical properties to ensure the best clinical performance.…”

Section: Introductionmentioning

confidence: 99%

“…2 Light-activated band adhesives are very common among orthodontists because of the rapid strength development, shortened setting time (thus, also shorter chair time), increased duration of effectiveness, decreased effects of saliva, metal surface for adherence, and unetched enamel. [3][4][5][6] Light-activated orthodontic band adhesives are different from restorative adhesives, as the former are being used in a thinner layer with a greater depth between the teeth and the bands. 6 For instance, in a tooth with a large metal restoration, the light path through the tooth crown is interrupted, so the adhesive might not polymerize sufficiently because less light can penetrate.…”

Section: Introductionmentioning

confidence: 99%

“…[3][4][5][6] Light-activated orthodontic band adhesives are different from restorative adhesives, as the former are being used in a thinner layer with a greater depth between the teeth and the bands. 6 For instance, in a tooth with a large metal restoration, the light path through the tooth crown is interrupted, so the adhesive might not polymerize sufficiently because less light can penetrate. 6 Clinically, therefore, inadequate polymerization would occur because of difficulties both in illuminating the band adhesives evenly from each side of the band/tooth and in reaching the posterior of the oral cavity with the light source.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Time Delay on Degree of Conversion of Contemporary Orthodontic Band Adhesives

Çörekçi¹,

Toy²,

Malkoç³

et al. 2013

Turkish Journal of Orthodontics

View full text Add to dashboard Cite

Objective: For prolonged use in the oral cavity, orthodontic band adhesives should have certain physical properties to ensure the best clinical performance. The degree of conversion (DC) of orthodontic band adhesives has been found to affect their mechanical properties. The aim of this study was to investigate the effects of time delay on the DC of orthodontic band adhesives. Materials and Methods: Fourier-transform infrared spectroscopy was used to evaluate the DC of 3 adhesives (Bisco Ortho Band Paste LC, Multi Cure Glass Ionomer Band Cement, Transbond Plus Light Cure Band Adhesive) immediately after they had been polymerized and stored in artificial saliva at 37 6 18C for 30 days. Thirty disc-shaped specimens (10 for each adhesive) were fabricated in Teflon molds (6.0 3 1.0 mm). The samples for each adhesive were divided further into 2 groups (n=5). Results: The DC was significantly influenced by the band adhesive type (p , 0.05), and there were significant differences among band adhesive types for the DC after 30 days. Conclusion: The value of the DC could change with time delay. (Turkish J Orthod 2013;26:23-29)

show abstract

Polymerization capacity of orthodontic composites analyzed by Fourier transform infrared spectroscopy

Çörekçi

Malkoç

Öztürk

et al. 2011

American Journal of Orthodontics and Dentofacial Orthopedics

View full text Add to dashboard Cite

Effects of different sizes of occlusal metal on curing depth of light-cured orthodontic band cement

Cited by 5 publications

References 24 publications

Enhanced Degree of Monomer Conversion of Orthodontic Adhesives Using a Glass-Fiber Layer under the Bracket

Enhanced Degree of Monomer Conversion of Orthodontic Adhesives Using a Glass-Fiber Layer under the Bracket

Effects of Time Delay on Degree of Conversion of Contemporary Orthodontic Band Adhesives

Polymerization capacity of orthodontic composites analyzed by Fourier transform infrared spectroscopy

Contact Info

Product

Resources

About