scholarly journals Examination Of Damage on Enamel Surface Due to Removal of Metal and Ceramic Brackets: A Review

2021 ◽  
Author(s):  
Hasan Gündal ◽  
Burçak Kaya
Keyword(s):  
Orthodontic Treatment ◽  
Dental Enamel ◽  
Enamel Surface ◽  
Ceramic Brackets ◽  
Removal Of Metal ◽  
Great Possibility

During fixed orthodontic treatment, there is great possibility that the dental enamel could be damaged due to the process of debonding the bracket. Enamel cracks are one of the most common aspects that can develop or increase during debonding. This review aimed to conduct an examination of cracks in the enamel that occur both prior to and following metal or ceramic brackets being debonded.

scholarly journals Examination Of Damage on Enamel Surface Due to Removal of Metal and Ceramic Brackets: A Review

2021 ◽  
Author(s):  
Hasan Gündal ◽  
Burçak Kaya
Keyword(s):  
Orthodontic Treatment ◽  
Dental Enamel ◽  
Enamel Surface ◽  
Ceramic Brackets ◽  
Removal Of Metal ◽  
Great Possibility

During fixed orthodontic treatment, there is great possibility that the dental enamel could be damaged due to the process of debonding the bracket. Enamel cracks are one of the most common aspects that can develop or increase during debonding. This review aimed to conduct an examination of cracks in the enamel that occur both prior to and following metal or ceramic brackets being debonded.

scholarly journals Enamel Surface Damage following Debonding of Ceramic Brackets: A Hospital-Based Study

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Neelutpal Bora ◽  
Putul Mahanta ◽  
Deepjyoti Kalita ◽  
Sangeeta Deka ◽  
Ranjumoni Konwar ◽  
...  
Keyword(s):  
Dental Enamel ◽  
Surface Damage ◽  
Enamel Surface ◽  
Thermal Method ◽  
Primary Responsibility ◽  
Enamel Structure ◽  
Ceramic Brackets ◽  
Kolmogorov Smirnov ◽  
The One ◽  
Post Hoc

Background and Objective. The primary responsibility of an orthodontist is to preserve the dental enamel structure during debonding ceramic brackets. The enamel injury caused at the time of bracket removal causes inconvenience to the patient and disturbs the treating orthodontist. This paper aims for an effective evidence-based debonding protocol to keep the enamel surface intact. Methods. The current study includes 80 extracted premolars of human from the patient visiting for orthodontic treatment of Coorg Institute of Dental Sciences, Karnataka, India. The brackets were debonded using four different methods. The enamel surface damage after the procedure was assessed with the Enamel Surface Index (ESI); similarly, the Adhesive Remnant Index (ARI) score was used to determine the adhesive residual deposit. Scanning electron microscopy (SEM) was used to visualize better microporosities and micromechanical retention of adhesive remnants on the enamel surface. The normality of the data was tested using the Kolmogorov–Smirnov test. Depending upon the normality test result, the one-way ANOVA test or Kruskal–Wallis test was used to test the mean ESI and mean ARI differences among different debonding methods along with the appropriate post hoc tests. The necessary ethical clearance was obtained from the Ethics Committee of the institute. Results. The ultrasonic scaler (US) technique led to more significant enamel surface damage, with 13 (65%) samples in the ESI scores III and IV against the satisfactory surface in 2 (10%) samples with the ligature cutter (LC) technique (ESI-I) reflecting LC as a better technique. The ESI scores (III and IV) for debonding plier (DP) and thermal method (TM) reflected a higher value in 12 (60%) and 10 (50%) samples and caused more damage to the enamel surface as compared to the LC technique. The ARI score was highest (ARI-1 = 40%) with the LC technique, followed by the US (ARI-1 = 20%), TM (ARI-1 = 15%), and DP (ARI-1 = 5%) methods. We have observed a significant association ( p value <0.05) of the ARI score among four different debonding ways in terms of each tooth’s residual adhesive after the bracket removal. Conclusion. The result establishes the LC technique as a more acceptable one as it causes minimal harm to the debonded surface. The adhesive left on the debonded area is also minimum as compared to the other three methods tested. Therefore, it can be suggested as an ideal method.

scholarly journals Evaluation of enamel surface after bracket debonding and adhesive removal with six different methods

2020 ◽  
Vol 148 (7-8) ◽  
pp. 404-409
Author(s):  
Adriana Arbutina ◽  
Marijana Arapovic-Savic ◽  
Mirjana Umicevic-Davidovic ◽  
Irena Kuzmanovic-Radman ◽  
Nenad Nedeljkovic ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Orthodontic Treatment ◽  
Adhesive System ◽  
Enamel Surface ◽  
Tooth Surface ◽  
Control Group ◽  
Common Cause ◽  
Ultrasonic Scaler ◽  
Adhesive Removal ◽  
Microscopy Images

Introduction/Objective. After an orthodontic brackets debonding procedure it is necessary to remove any residual adhesive from the tooth surface, as this is a common cause of enamel damage. The aim of this study is to evaluate the enamel surface after the application of six different methods of adhesive removal following brackets debonding, as well as to compare the duration of these procedures. Methods. For the purpose of this study, 245 human premolars were extracted as part of the orthodontic treatment. Metal brackets were bonded to 210 human premolars with the Aspire adhesive system. After the debonding of brackets, the samples were divided into six groups according to the adhesive removal method applied: tapered fissure tungsten carbide bur, round tungsten carbide bur, composite bur, abrasive disc, adhesive removing pliers, and ultrasonic scaler. Out of 245 premolars, 35 served as a control group. The duration of adhesive removal was recorded. Enamel damages were estimated according to the enamel surface index on the scanning electron microscopy images. Results. Maximum preservation of the enamel surface was accomplished by using a composite bur (1.08). The application of abrasive disc was significantly less time-consuming in comparison to the application of a composite bur (p < 0.01) and an ultrasonic scaler (p < 0.01). Conclusion. The most harmful for the enamel surface was the use of an ultrasonic scaler as well as a round tungsten carbide bur. Adhesive removal done by an abrasive disc thus proved one of the least damaging and the least time-consuming methods.

scholarly journals Effects of CO2laser irradiation on matrix-rich biofilm development formation–an in vitro study

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2458 ◽  
Author(s):  
Bruna Raquel Zancopé ◽  
Vanessa B. Dainezi ◽  
Marinês Nobre-dos-Santos ◽  
Sillas Duarte ◽  
Vanessa Pardi ◽  
...  
Keyword(s):  
Contact Angle ◽  
Biofilm Formation ◽  
Dental Enamel ◽  
In Vitro Study ◽  
Dry Weight ◽  
Vitro Study ◽  
Enamel Surface ◽  
Control Group ◽  
Biofilm Development

BackgroundA carbon dioxide (CO2) laser has been used to morphologically and chemically modify the dental enamel surface as well as to make it more resistant to demineralization. Despite a variety of experiments demonstrating the inhibitory effect of a CO2laser in reduce enamel demineralization, little is known about the effect of surface irradiated on bacterial growth. Thus, this in vitro study was preformed to evaluate the biofilm formation on enamel previously irradiated with a CO2laser (λ = 10.6 µM).MethodsFor this in vitro study, 96 specimens of bovine enamel were employed, which were divided into two groups (n = 48): 1) Control-non-irradiated surface and 2) Irradiated enamel surface. Biofilms were grown on the enamel specimens by one, three and five days under intermittent cariogenic condition in the irradiated and non-irradiated surface. In each assessment time, the biofilm were evaluated by dry weigh, counting the number of viable colonies and, in fifth day, were evaluated by polysaccharides analysis, quantitative real time Polymerase Chain Reaction (PCR) as well as by contact angle. In addition, the morphology of biofilms was characterized by fluorescence microscopy and field emission scanning electron microscopy (FESEM). Initially, the assumptions of equal variances and normal distribution of errors were conferred and the results are analyzed statistically by t-test and Mann Whitney test.ResultsThe mean of log CFU/mL obtained for the one-day biofilm evaluation showed that there is statistical difference between the experimental groups. When biofilms were exposed to the CO2laser, CFU/mL and CFU/dry weight in three day was reduced significantly compared with control group. The difference in the genes expression (Glucosyltransferases (gtfB) and Glucan-binding protein (gbpB)) and polysaccharides was not statically significant. Contact angle was increased relative to control when the surface was irradiated with the CO2laser. Similar morphology was also visible with both treatments; however, the irradiated group revealed evidence of melting and fusion in the specimens.ConclusionIn conclusion, CO2laser irradiation modifies the energy surface and disrupts the initial biofilm formation.

scholarly journals Evaluation of Enamel Loss with Polycrystalline Ceramic Bracket using two different Debonding Techniques

2015 ◽  
Vol 5 (1) ◽  
pp. 18-21
Author(s):  
P Narayan Prasad ◽  
Tarun Sharma ◽  
Gaurav Chaudhary ◽  
Arjun Vedvyas ◽  
Sandeep Gupta
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Enamel Surface ◽  
Surface Loss ◽  
Bonding Material ◽  
Polycrystalline Ceramic ◽  
Ceramic Brackets ◽  
Ceramic Bracket ◽  
Scanning Electron

Introduction: Debonding of ceramic brackets requires a technique that will restore the enamel surface possibly to its pretreatment condition.Objective: To evaluate a comparative degree of enamel loss with various debonding techniques.Materials & Method: 30 extracted premolars were divided into three equal groups of 10 each on the basis of bonding material used. Six subgroups comprising of 5 teeth each were formed on the basis of debonding techniques. Debonded enamel surfaces were photographed under Scanning Electron Microscope to evaluate the enamel loss percentage and compared using oneway ANOVA.Result: Decreasing order of enamel surface loss was 63.1%, 56.3%, 45.4%, 43%, 31% and 30.5% for light cure–mechanical, light cure-electrothermal, self cure-mechanical, self cure-electrothermal, single composite-mechanical and single compositeelectrothermalcombination respectively.Conclusion: Mechanical debonding leads to greater enamel loss than electrothermal debonding. Bonding with Light cure composite always leads to greater enamel loss irrespective of type of debonding technique. Bonding with single composite always leads to lesser enamel loss irrespective of debonding technique.

scholarly journals Shear bond resistance and enamel surface comparison after the bonding and debonding of ceramic and metallic brackets

2014 ◽  
Vol 19 (1) ◽  
pp. 77-85 ◽  
Author(s):  
José Maurício da Rocha ◽  
Marco Abdo Gravina ◽  
Marcio José da Silva Campos ◽  
Cátia Cardoso Abdo Quintão ◽  
Carlos Nelson Elias ◽  
...  
Keyword(s):  
Bond Strength ◽  
Surface Topography ◽  
Level Set ◽  
Shear Bond Strength ◽  
Enamel Surface ◽  
Tissue Loss ◽  
Significance Level ◽  
Mineral Particles ◽  
Significant Difference ◽  
Ceramic Brackets

OBJECTIVE: To evaluate, in vitro, the shear bond strength presented by three brands of polycrystalline ceramic brackets and one brand of metallic bracket; verify the adhesive remnant index (ARI) after the tests, and analyze, through scanning electron microscopy (SEM) the enamel surface topography after debonding, detecting the release of mineral particles. METHODS: Sixty bovine lower incisors were used. Three ceramic brackets (Allure(r), InVu(r), and Clarity(r)) and one metallic bracket (Geneus(r)) were bonded with Transbond XT(r). Kruskal-Wallis's test (significance level set at 5%) was applied to the results of share bond and ARI. Mann Whitney's test was performed to compare the pairs of brackets in relation to their ARI. Brown-Forsythe's test (significance level set at 5%) was applied to the results of enamel chemical composition. Comparisons between groups were made with Games-Howell's and the Post-hoc tests. RESULTS: No statistically significant difference was observed in relation to the shear bond strength loads. Clarity(r) brackets were the most affected in relation to the surface topography and to the release of mineral particles of enamel (calcium ions). CONCLUSION: With regard to the ARI, there was a prevalence of score 4 (40.4%). As for enamel surface topography, the Geneus(r) bracket was the only one which did not show superficial tissue loss. The InVu(r) and Clarity(r) ones showed cohesive fractures in 33.3% and the Allure(r) in 50%, the latter being the one that presented most fractures during removal.

scholarly journals Low-Pressure Plasma Sterilization for Test Specimens to be Worn on Splints in the Oral Cavity

Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 99 ◽  
Author(s):  
Ella A. Naumova ◽  
Alexander-Simon Engel ◽  
Hagen Tizian Kranz ◽  
Marvin Schneider ◽  
Jan Tietze ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Dental Enamel ◽  
Low Pressure ◽  
Laser Scanning Microscopy ◽  
Enamel Surface ◽  
Confocal Laser ◽  
Oral Biofilm ◽  
Pressure Plasma ◽  
Low Pressure Plasma ◽  
Before And After

Bacterial biofilms adhere to all oral surfaces and may alter or degrade them. For investigations of the oral biofilm, growing on new restorative dental biomaterials, sterilized dental enamel surfaces as natural, control, and reference materials are used. A novel method for disinfection and sterilization of surfaces is low-pressure plasma (LPP) sterilization, which is a nondestructive and nontoxic technology. The roughness of the dental enamel surface was determined before and after LPP sterilization. Enamel discs were placed in dental splints and worn for five days in vivo. Oral biofilm was fixed for scanning electron microscopy (SEM). Biofilms growing in vitro were characterized microbiologically before and after sterilization and examined by confocal laser scanning microscopy (CLSM). Microbiology demonstrated that various bacterial strains were present in the biofilms. SEM showed multiple layers of densely packed bacteria, and CLSM demonstrated that the biofilm contained live and dead bacteria. After LPP sterilization, no biofilm could be detected, and the enamel surface remained unaltered. It may be concluded that LPP sterilization is an effective, nondestructive method for disinfection of enamel before application in the oral cavity. LPP sterilization may be suitable for sterilization of dental materials without altering their surfaces.

Remineralization of Natural Tooth Enamel in Artificial Saliva Environment

2017 ◽  
Vol 68 (3) ◽  
pp. 510-514 ◽  
Author(s):  
Agripina Zaharia ◽  
Viorica Ghisman Plescan ◽  
Irina Atkinson ◽  
Oana Catalina Mocioiu ◽  
Alina Cantaragiu ◽  
...  
Keyword(s):  
Tooth Enamel ◽  
Artificial Saliva ◽  
Dental Enamel ◽  
Hexagonal Structure ◽  
Enamel Surface ◽  
Enamel Matrix Derivative ◽  
Phosphate Solution ◽  
X Ray ◽  
Composition And Structure ◽  
Demineralized Enamel

This paper investigates in situ remineralization of the acid-etched natural enamel surface, by incubation in a phosphate solution with neutral pH, at 37 �C for 4-10 days, without using any enamel matrix derivative (EMD). We investigated the morphology, crystallinity, chemical composition and structure of the newly grown layer onto the natural enamel surface stored in contact with artificial saliva (AS) having a composition similar to natural oral environment. The crystalline phases, crystallite size and orientation, as well as the chemical and phase composition of the remineralized dental enamel samples were studied by scanning electron microscopy coupled with energy dispersive X-ray spectrometry, Fourier transform infrared spectroscopy and X-ray diffraction. The experimental results showed that the enamel crystals grown on the demineralized enamel surface are mainly Ca-deficient apatite hexagonal structure. Fluoridated hydroxyapatite and sylvite-type KCl crystallites, which amount considerable increased in the case of sample stored in AS for 10 days, were also identified.

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