Enamel colour changes after debonding using various bonding systems

Zaher, Abbas; Abdalla, E. M.; Motie, Maha Adly Abdel; Rehman, Noman Atiq; Kassem, Hassan; Athanasiou, Athanasios E.

doi:10.1179/1465312512z.0000000009

Cited by 37 publications

(45 citation statements)

References 15 publications

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“…In this study, all experimental groups showed color differences that exceeded the threshold of clinical detection between baseline T0 and T1 (group I ∆E=4.93, group II ∆E=5.04, and group III ∆E =9.76). Similar results were reported by Zaher et al (33) where all experimental groups showed significant color change between baseline and finishing which exceeded the threshold for clinical color detection of (∆E= 6.26, Volume 44 -December 2013 ∆E= 6.68, and ∆E =5.67). This was attributed to the change in the refractive index of the enamel caused by the infiltration of the resin tags, which could modify the diffusely reflected light component, thus influencing the color parameters.…”

Section: Discussionsupporting

confidence: 88%

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Color changes associated with Proseal

Ismail

Kalza

Abdel-Raouf

2013

Egyptian Orthodontic Journal

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This in-vitro study was conducted to evaluate enamel color changes associated with the use of a highly-filled, fluoridereleasing enamel sealant (Proseal). A sample of 60 freshly extracted premolar teeth were collected according to clear selection criteria. The teeth were randomly divided into a control and three experimental groups.Brackets were bonded to the teeth using Transbond XT composite paste in only two of the experimental groups after conditioning the whole buccal surface with 37% phosphoric acid for 15 seconds. In Group I, Transbond XT primer was applied to the etched enamel surface while Proseal enamel sealant was applied in Group II. In Group III, Proseal enamel sealant was applied to the etched enamel surface with no bracket bonding. The samples were then subjected to a staining and photo aging protocol in an attempt to simulate the oral environment. In groups I and II, brackets were debonded and then the enamel surface was finished and polished using a 12-fluted carbide burs on low speed followed by rubber cup and polishing paste. Samples in Group III and the control group received only enamel polishing. Enamel color was spectrophotometrically evaluated at three intervals; at baseline (T0), following debonding and finishing (T1), and after resubjecting the samples to the same staining and photo aging protocol (T3). CIE L*, a*, b* order system was used for color quantification and color differences (∆E) were calculated.

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Section: Discussionsupporting

confidence: 88%

“…Roots were scaled and cleaned of soft tissue debris using handscaler † and then stored in an aqueous solution of thymol (0.1%) at room temperature to prevent dehydration (32) . A black container was used for storage so that any possible effects of light are eliminated (33) .…”

Section: Sample Selection and Preparationmentioning

confidence: 99%

Color changes associated with Proseal

Ismail

Kalza

Abdel-Raouf

2013

Egyptian Orthodontic Journal

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“…Some in vitro studies have concluded that there is no definitive evidence to show the bonding/debonding procedures alone exert significant effect on the colour of both bovine and human tooth enamel . However, other research has indicated that these procedures have a discernible impact on enamel colour . Irrespective of these conflicting conclusions, several reports have emphasized the need for further randomized clinical trials to try to clarify the issue.…”

Section: Discussionmentioning

confidence: 99%

“…13,14 However, other research has indicated that these procedures have a discernible impact on enamel colour. [15][16][17] Irrespective of these conflicting conclusions, several reports have emphasized the need for further randomized clinical trials to try to clarify the issue. In vivo studies have previously revealed colour differences following The results of the present long-term in vivo study indicate that the colour of natural teeth after the first retention year demonstrated significant changes, ranging from 1.4 to 2.1 ΔΕ units.…”

Section: Discussionmentioning

confidence: 99%

In vivo evaluation of tooth colour alterations during orthodontic retention: A split‐mouth cohort study

Karamouzos

Zafeiriadis

Kolokithas

et al. 2019

Orthod Craniofacial Res

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Structured Abstract Objectives To assess in vivo colour alterations of teeth following removal of fixed orthodontic appliances during retention. Setting and Sample Population The Department of Orthodontics at the Aristotle University of Thessaloniki. Forty‐eight patients after orthodontic treatment. Material and Methods Debonding and cleaning procedures after orthodontic treatment were performed using two different carbide burs attached to a low or high‐speed handpiece, respectively, in a non‐blinded cohort study with split‐mouth design. Spectrophotometric colour data of teeth were recorded: (a) after debonding, (b) three months later, prior to and following finishing with Soflex discs, and (c) after 1 year. The CIE Lab colour parameters were measured for each tooth, and the corresponding ΔΕ differences were calculated. The effect on colour was assessed with 3‐way mixed ANOVA and Bonferroni's comparisons test (a < 0.05). Results Orthodontic debonding and cleaning procedures were found to have statistically significant effects on the CIE colour parameters of treated teeth, since the L* values decreased 0.6 units (P < 0.001), a* values were stable (0.0 units) and b* values increased 1.4 units (P < 0.001), during the first retention year. Finishing temporarily decreased the enamel colour differences. Total ΔΕ differences for all types of teeth measured ranged from 1.4 to 2.1 units. The greatest changes were exhibited during the first 3 months in teeth on which high‐speed rotary instruments were used (1.6 units). Conclusion The clinical relevance of this study points out that the colour of natural teeth following removal of fixed orthodontic appliances changes in long‐term.

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“…There are various materials and techniques used for tooth enamel conditioning before bonding orthodontic accessories. In a recent study 2 Egyptian researchers performed an evaluation of whether or not the different methods and materials would alter enamel color after debonding, in addition to verifying the degree of penetration of bonding materials into enamel. The results found showed that self-etching agents presented lower levels of penetration and coloring of enamel after debonding, whereas etching with 37% phosphoric acid for 60 seconds presented the highest level of coloring and infiltration, and showed differences when compared with the same phosphoric acid for a period of 15 seconds.…”

Section: Self-etching Agents Produce Fewer Changes In Enamel Color Afmentioning

confidence: 99%

Orthodontics highlights

Pithon

2012

Dental Press J. Orthod.

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PaRameteRS uSed foR RefeRRing PatientS foR oRtHognatHiC SuRgeRyDuring the course of decades, orthodontics was based on linear and angular static measurements to define the orthodontic treatment plan. Nowadays, a great deal of attention has been paid to facial analysis. In line with this trend, an interesting article 1 was published, in which the proposal was to verify whether it was necessary or not to refer Class II, division 1 patients for orthognathic surgery, based on observation of the face in lateral view. The conclusions drawn from this study were that the displacement of the soft tissues of the pogonium and point B in the posterior direction and the diminished facial profile angle were decisive factors for orthodontists to indicate these patients for orthognathic surgery. These results suggested that in the presence of cases with limitations it is always important to take a profile photograph of the patient and show it to the patient, so that he/ she can evaluate his/her face and together with the orthodontist, define whether or not it would be convenient to undergo surgical treatment.

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Enamel colour changes after debonding using various bonding systems

Abstract: Moderate evidence exists that shorter resin tag penetration produces less change in enamel colour following clean-up and polishing. Self-etch primers produce less resin penetration and these systems may produce less iatrogenic colour change in enamel following orthodontic treatment.

Cited by 37 publications

References 15 publications

Color changes associated with Proseal

Color changes associated with Proseal

In vivo evaluation of tooth colour alterations during orthodontic retention: A split‐mouth cohort study

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