Bleaching Techniques in Restorative Dentistry

Greenwall, Linda; BDS,; MGDSRCS,; MRDRCS,; MSC,; FGDP,; practice, Private; London,; UK,; from, contributions; Freedman, George A; DDS, None; FFACD,; Gordan, Valeria V.; MS, None; Haywood, Van B.; Kelleher, Martin; FDS,; McLaughlin, Gerald W.; Brook, SUNY at Stony; USA,; Rotstein, Ilan

doi:10.4324/9780203417430

Cited by 50 publications

(58 citation statements)

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“…The figure obtained for tooth sensitivity with home-based bleaching (72% of bleaching providers) is suggested to be of particular note and possibly cause for some concerns, although existing literature indicates that such sensitivity is typically a short-term phenomenon and, if it does not resolve spontaneously, can usually be treated by relatively simple means. 8 The issue may simply be one of overzealous home bleaching; contrary to the advice of the practitioner. Reassuringly, bleaching, whether home-based or practice-based, was not found to give rise to systemic or other side effects to any appreciable extent.…”

Section: Bleachingmentioning

confidence: 99%

Contemporary dental practice in the UK: aspects of direct restorations, endodontics and bleaching

Wilson¹,

Christensen²,

Cheung³

et al. 2004

Br Dent J

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Objectives To investigate by questionnaire, the use and selection of materials and techniques for the placement of direct restorations and the provision of endodontics and bleaching by dental practitioners in the North West of England and Scotland. Methods A questionnaire was sent to 1,000 general dental practitioners selected at random from dentists in Scotland and the North West of England. Non-responders were sent another questionnaire after a period of 4 weeks had elapsed. Results A total of 701 usable questionnaires were returned, giving a response rate of 70%. The most commonly used material for the restoration of Class II cavities in premolar and permanent molar teeth was amalgam (n = 605, 86%) and (n = 634, 90%) respectively. Many practitioners (n = 419, 60%) felt amalgam should continue to be used but a majority (n = 374, 66%) remained unconvinced about the merits of amalgam bonding. A minority (n = 63, 9%) of practitioners used predominantly directly placed resin composite rather than amalgam to restore Class II cavities in premolar and permanent molar teeth. Homebased vital bleaching was provided by a significant number (n = 245, 35%) of practitioners with only 18% (n = 123) providing practice-based bleaching. The most commonly used endodontic obturation technique was cold lateral condensation (n = 527, 75%) with 61% (n = 425) of respondents not using rubber dam routinely for endodontics. Conclusions For the practitioners in this survey, amalgam was the most frequently selected direct restorative material. Few practitioners used amalgam bonding let alone direct resin composite for posterior restorations. Home-based rather than practice-based bleaching procedures were preferred, as were more traditional endodontic obturation techniques.

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Section: Bleachingmentioning

confidence: 99%

Contemporary dental practice in the UK: aspects of direct restorations, endodontics and bleaching

Wilson¹,

Christensen²,

Cheung³

et al. 2004

Br Dent J

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“…Current home bleaching products typically contain a relatively low level of the bleaching agent, which is applied to the teeth via a custom fabricated mouth guard and worn every night for at least 2 weeks 5) . Compared to the home bleaching agents, available office bleaching products generally contain relatively high levels of the bleaching agents, for example 35% H2O2, and are applied for shorter time periods 6) . Factors contributing to the efficacy of the office bleaching are temperature, H2O2 concentration, application time, light or energy sources, and the presence of some catalysts.…”

Section: Introductionmentioning

confidence: 99%

Effect of light units on tooth bleaching with visible-light activating titanium dioxide photocatalyst

et al. 2011

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This study evaluated the influence of different light sources on the efficiency of an office bleaching agent containing visible-light activating titanium dioxide photocatalyst (VL-TiO2) using an artificial discoloration tooth model. Extracted bovine teeth were stained by black tea. The CIE L*a*b* values were measured before and after nine consecutive treatments by the VL-TiO2-containing bleaching agent (TiON in Office, GC, Tokyo, Japan). A halogen light unit (CB; CoBee, GC) or an LED unit (G-light, GC) with two modes (blue and violet: GL-BV, blue: GL-B) were used to activate the bleaching agent in three groups (n=8). Brightness (ΔL) and color difference (ΔE) increased as bleaching repeated in all groups. Two-way ANOVA showed that both number of treatments and light sources significantly affected ΔE (p<0.05). GL-BV showed better bleaching effect than GL-B. In measurement of irradiation spectra, CB showed a wide spectrum (380-530 nm), GL-B had a sharp peak at 470 nm and GL-BV showed an additional peak at 405 nm. It was concluded that the light source influenced the efficiency of the tooth bleaching with VL-TiO2.

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“…6,7 There are conflicting reports about consequences of bleaching material on hardness of restorative resins. 5 Some authors had reported that home bleaching agents WJD may soften the resin composites, 8 while other authors found no significant changes in the hardness.…”

Section: Introductionmentioning

confidence: 99%

“…4 The introduction of CP at-home bleaching has created resurgence in the area of bleaching primarily because of its relative ease of application, the safety of the material, lower cost, easy availability, and the high percentage of successful treatment. 5 The mechanism involved in bleaching is the decomposition of peroxides into unstable free radicals, which further break down into large pigmented molecules through oxidation or reduction reaction. This reaction changes the chemical structure of the interacting organic substances of the tooth, which results in color change.…”

Section: Introductionmentioning

confidence: 99%

Effects of Bleaching Agents on the Microhardness and Surface Roughness of Bulk Fill Composites

Francis¹,

Pradeep

Ginjupalli

et al. 2017

World Journal of Dentistry

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Aim:The aim was to compare the effect of 10 and 20% carbamide peroxide (CP) on microhardness (MHN) and surface roughness of two commercially available bulk fill composites (X-tra fill Bulk Fill and Tetric EvoCeram Bulk Fill). Materials and methods:A total of 50 specimens with both type composites were prepared using brass molds of inner diameter 10 mm and a height of 4 mm. Each type of composite was further divided into three groups, control group stored in artificial saliva for 14 days, other groups bleached with 10 and 20% CP respectively, for 14 days. Microhardness of the composite resin was tested with a Vickers hardness tester, whereas surface roughness was tested with profilometer.Results: All the analysis was performed using Statistical Package for the Social Sciences version 18. The value of p < 0.05 was considered statistically significant. Both 10 and 20% CP significantly reduced MHN of experimental composite resins. However, the mean surface roughness was significantly higher in X-tra fill Bulk Fill than Tetric EvoCeram Bulk Fill at 20% CP concentration. The mean MHN of Tetric EvoCeram was reduced when compared with X-tra fill at 20% CP. Conclusion:There was a significant reduction in the MHN of restorative materials observed after exposure to CP under a clinically simulated bleaching regimen. However, increase in surface roughness was seen only at 20% CP. Clinical significance:The physical properties, such as MHN and surface roughness have a crucial effect on the longevity of restorations and, moreover, on the esthetic demands of patients, but they may be compromised by bleaching treatments. The aim of this research paper was to assess the reaction of home bleaching agents on the physical properties of two Bulk Fill composite resin restorative materials.

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Bleaching Techniques in Restorative Dentistry

Cited by 50 publications

References 0 publications

Contemporary dental practice in the UK: aspects of direct restorations, endodontics and bleaching

Contemporary dental practice in the UK: aspects of direct restorations, endodontics and bleaching

Effect of light units on tooth bleaching with visible-light activating titanium dioxide photocatalyst

Effects of Bleaching Agents on the Microhardness and Surface Roughness of Bulk Fill Composites

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