scholarly journals The effect of different drinks on tooth color after home bleaching

2014 ◽  
Vol 08 (02) ◽  
pp. 249-253 ◽  
Author(s):  
Muhammet Karadas ◽  
Nilgun Seven
Keyword(s):  
Red Wine ◽  
Color Change ◽  
Artificial Saliva ◽  
Sample Surface ◽  
Control Group ◽  
Change Analysis ◽  
Tooth Color ◽  
Bleaching Procedure ◽  
Significant Difference ◽  
And Control

ABSTRACT Objective: This study evaluated the influence of coffee, tea, cola, and red wine staining on the color of teeth after home bleaching. Materials and Methods: A total of 45 samples were obtained from 45 sound maxillary central incisors. The home bleaching procedure was performed using 10% carbamide peroxide gel applied to the sample surface for a period of 6 h each day, for 14 days. After bleaching, baseline color measurements were taken, and the samples were immersed in four staining solutions (coffee, tea, cola, and red wine) or artificial saliva (n = 9). Following 15 min and 6 h of immersion on the first day and next day, respectively, the samples were washed with distilled water for 10 s. After 15 min, 6 h, 1 week, and 1 month immersions, the color values of each sample were remeasured and the color change values (⋄E) were calculated. Color change analysis was performed using a spectrophotometer. The results were analyzed using analysis of variance and Tukey's honestly significant difference test (P <0.05). Results: Of all the staining solutions, the lowest ⋄E values were observed with coffee staining versus artificial saliva (control group), for all time intervals evaluated after whitening. Although no statistically differences were observed between the coffee and control group at all the time points evaluated, there were statistically significant differences between the red wine, cola, and tea solutions. Conclusion: Following tooth whitening, patients should avoid drinks that cause tooth staining, particularly red wine, tea and cola.

Effect of Liquid Polishing System on Color Stability of Bleached Enamel

2013 ◽  
Vol 804 ◽  
pp. 141-145
Author(s):  
Xiu Lan Chen ◽  
Huang Qin Chen
Keyword(s):  
Red Wine ◽  
Color Change ◽  
Color Stability ◽  
Control Groups ◽  
Significant Difference ◽  
Before And After ◽  
Total Color Change ◽  
Post Hoc ◽  
And Control ◽  
One Way Anova

The purpose of this study was to investigate the effect of liquid polishing system (BisCover) on color stability of the bleached enamel upon exposure to a staining agent-red wine. Forty specimens were prepared. They were divided into 2 groups and different procedures, including only bleaching with Opalescence PF (PF) or Opalescence regular (R) gels, and application of BisCover after blaeching (PF-B, R-B) were used. Unbleached specimens were served as control groups (control-1 and control-2). The specimens were stored for 48 h in red wine. The color of all specimens was measured before and after exposure with a spectrophotometer, and total color change (ΔE*) were calculated. The data were analyzed with a one-way ANOVA and the means were compared by Tukeys post hoc analysis (α=0.05). PF-B and R-B groups demonstrated significantly less color change than PF and R groups. the control-1 and control-2 groups had the least color change. No significant difference were observed between PF and R group. BisCover improved the color stability of bleached enamel in red wine.

scholarly journals Evaluation of surface roughness and color change of bovine enamel after immersion in dye solution

2018 ◽  
Vol 5 (5) ◽  
pp. 95
Author(s):  
Ana Carolina Trentino ◽  
Larissa Marinho Azevedo ◽  
Felipe Fabrício Farias Da Silva ◽  
Maria Cristina Carvalho de Almedra Freitas ◽  
Marina Studart Alencar Borges ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Surface Roughness ◽  
Color Change ◽  
Artificial Saliva ◽  
In Vitro Study ◽  
Black Tea ◽  
Control Group ◽  
Change Analysis ◽  
Miller Test

Aim: The aim of this in vitro study was to evaluate the influence of dye solution on enamel color change after bleaching protocols and the effectiveness in maintaining the color of these agents.Material and Methods: The buccal surfaces of sixty-five bovine incisors were cleaned and polished, and the enamel specimens were divided into thirteen groups: G1 to G6: treated with 6% hydrogen peroxide using different surface agents; G7 to G12: treated with 15% hydrogen peroxide using different surface agents; G13: control. After 24 hours, the groups treated were immersed in black tea solution; the control group was stored in artificial saliva. The color was evaluated prior to bleaching, 24 hours later and after immersion in the dye solution; the roughness was measured immediately after bleaching, 24 hours later and 7 days after immersion in the dye solution. The data was analyzed using the Kruskal-Wallis test, followed by the Miller test for roughness analysis, and the Duncan test for color change analysis. It was used 5% significant level with p<0.05.Results: The data found in the evaluation of surface roughness after bleaching indicated a reduction of roughness in all the groups. The surface agent Bifluoride, when applied, showed an increase in roughness after its application and it decreases after immersion in dye solution; the surface agent Desensibilize and the XP Bond adhesive showed greater color alteration after immersion in dye solution.Conclusions: All the groups studied, under different whitening technique, were effective in promoting whitening.

Effects of Different Commercially Available Mouth Rinses on The Force Degradation of Orthodontic Elastomeric Chain

2020 ◽  
Vol 23 (2) ◽  
pp. 41-48
Author(s):  
Halima Mohammed Hassan ◽  
Anees Mahmood Mudhir
Keyword(s):  
Artificial Saliva ◽  
Testing Machine ◽  
Control Group ◽  
Time Intervals ◽  
Mouth Rinses ◽  
Force Decay ◽  
Significant Difference ◽  
Mouth Wash ◽  
And Control ◽  
Elastomeric Chains

Aim of the study: To evaluate the effects of different commercial type of mouthwashes on the force decay of the orthodontic elastomeric chain. Materials and methods: two hundred pieces of the elastomeric chains with two different configurations were divided into five groups (one control group and four different mouthwashes groups). after one-day immersion in artificial saliva then immersion in the specific mouthwashes (kin, Vitis, perio_aid, splat) for one minute twice daily and time intervals after 7 days, 14 days, 21 days, and 28 then washed and kept in artificial saliva at 37°C again. Force decay was calculated by Instron measured, digital force gauge - Instron universal testing machine then compared different force decay of elastic types. Results: A significant difference was found among between the four types of mouth wash and control group, according to close and short elastic chain the kin mouth wash was shows a significant difference (0.002), while splat mouthwash was shown a no significant difference. Conclusion: splat mouth wash groups showed no significant influence on the force degradation of the chain elastics tested. Kin mouthwash exhibit the highest force decay and found different significant effects.

scholarly journals Tooth discoloration induced by a novel mineral trioxide aggregate-based root canal sealer

2016 ◽  
Vol 10 (03) ◽  
pp. 403-407 ◽  
Author(s):  
Dae-Sung Lee ◽  
Myung-Jin Lim ◽  
Yoorina Choi ◽  
Vinicius Rosa ◽  
Chan-Ui Hong ◽  
...  
Keyword(s):  
Root Canal ◽  
Color Change ◽  
Mineral Trioxide Aggregate ◽  
Control Group ◽  
Similar Amount ◽  
Root Canal Sealer ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Total Color Change ◽  
And Control

ABSTRACT Objectives: The aim of this study was to evaluate tooth discoloration caused by contact with a novel injectable mineral trioxide aggregate (MTA)-based root canal sealer (Endoseal; Maruchi, Wonju, Korea) compared with a widely used resin-based root canal sealer (AHplus; Dentsply De Trey, Konstanz, Germany) and conventional MTA (ProRoot; Dentsply, Tulsa, OK, USA). Materials and Methods: Forty standardized bovine tooth samples were instrumented and divided into three experimental groups and one control group (n = 10/group). Each material was inserted into the cavity, and all specimens were sealed with a self-adhesive resin. Based on CIE Lab system, brightness change (ΔL) and total color change (ΔE) of each specimen between baseline and 1, 2, 4, and 8 weeks were obtained. Results: At all time points, Endoseal showed no significant difference in ΔL and ΔE compared to AHplus and control group (P > 0.05), whereas the ProRoot group showed significantly higher ΔL and ΔE values than the Endoseal group at 2, 4, and 8 weeks (P < 0.05). Therefore, Endoseal showed less discoloration than conventional MTA and a similar color change to AHplus. Conclusions: Within the limitations of this study, our data indicate that the MTA-based sealer produces a similar amount of tooth discoloration as AHplus which is considered to be acceptable.

scholarly journals Effect of Prior Application of Desensitizing Agent on the Teeth Submitted to In-Office Bleaching

2020 ◽  
Vol 31 (3) ◽  
pp. 236-243
Author(s):  
Sibelli Olivieri Parreiras ◽  
Michael Willian Favoreto ◽  
Rubia Elisa Lenz ◽  
Maria Eduarda Serra ◽  
Christiane Philippini Ferreira Borges ◽  
...  
Keyword(s):  
Color Change ◽  
Negative Control Group ◽  
Negative Control ◽  
Tooth Bleaching ◽  
Control Group ◽  
Pulp Chamber ◽  
Bleaching Procedure ◽  
Significant Difference ◽  
Mi Paste ◽  
Desensitizing Agents

Abstract This study aimed to quantify the penetration of hydrogen peroxide, color change evaluation, surface morphology, and composition after application of desensitizing agents before in-office bleaching. Fifty premolars were sectioned, an acetate buffer was placed in the pulp chamber and divided into five groups (n=10). In the positive control group, only the in-office bleaching gel was used, and in the negative control group, no treatment was used. Three different desensitizing agents were applied: Desensibilize KF2%® group; Mi Paste® group, and Desensibilize Nano-P® group. The bleaching procedure was carried out with 35% HP. The absorbance of the resulting solution was determined in a spectrophotometer. Color change was assessed by using a digital spectrophotometer. Four additional premolars were assigned to the same groups above for analysis under scanning electron microscope, as well as to evaluate the elemental composition with X-ray dispersive energy spectrometry. Data were subjected to ANOVA and Tukey's test (α=0.05). All products reduced the penetration of HP in the pulp chamber. Mi Paste and Nano P were the products that yielded the lowest HP penetration, which was similar to the negative control group (p<0.001). No significant difference was detected in color change (p<0.001). Concerning enamel morphology, the groups that were analyzed after bleaching were observed a greater deposition of desensitizing agents on the surface. The use of desensitizing agents before tooth bleaching seems to be an alternative to reduce adverse effects of the tooth.

Laser Influence on Dental Sensitivity Compared to Other Light Sources Used During In-office Dental Bleaching: Systematic Review and Meta-analysis

2020 ◽  
Vol 45 (6) ◽  
pp. 589-597
Author(s):  
BGS Casado ◽  
EP Pellizzer ◽  
JR Souto Maior ◽  
CAA Lemos ◽  
BCE Vasconcelos ◽  
...  
Keyword(s):  
Randomized Clinical Trials ◽  
Color Change ◽  
Meta Analysis ◽  
Present Review ◽  
Cochrane Library ◽  
Light Sources ◽  
Eligibility Criteria ◽  
Tooth Color ◽  
Significant Difference ◽  
Meta Analyses

Clinical Relevance The use of laser light during bleaching will not reduce the incidence or severity of sensitivity and will not increase the degree of color change compared with nonlaser light sources. SUMMARY Objective: To evaluate whether the use of laser during in-office bleaching promotes a reduction in dental sensitivity after bleaching compared with other light sources. Methods: The present review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) and is registered with PROSPERO (CDR42018096591). Searches were conducted in the PubMed/Medline, Web of Science, and Cochrane Library databases for relevant articles published up to August 2018. Only randomized clinical trials among adults that compared the use of laser during in-office whitening and other light sources were considered eligible. Results: After analysis of the texts retrieved during the database search, six articles met the eligibility criteria and were selected for the present review. For the outcome dental sensitivity, no significant difference was found favoring any type of light either for intensity (mean difference [MD]: −1.60; confidence interval [CI]: −3.42 to 0.22; p=0.09) or incidence (MD: 1.00; CI: 0.755 to 1.33; p=1.00). Regarding change in tooth color, no significant differences were found between the use of the laser and other light sources (MD: −2.22; CI: −6.36 to 1.93; p=0.29). Conclusions: Within the limitations of the present study, laser exerts no influence on tooth sensitivity compared with other light sources when used during in-office bleaching. The included studies demonstrated that laser use during in-office bleaching may have no influence on tooth color change.

Effects of Virgin Coconut Oil as Adjunct Therapy in the Treatment of Allergic Rhinitis

2016 ◽  
Vol 1 (1) ◽  
pp. 22
Author(s):  
Nazli Zainuddin ◽  
Nurul Azira Mohd Shah ◽  
Rosdan Salim
Keyword(s):  
Allergic Rhinitis ◽  
Side Effects ◽  
Coconut Oil ◽  
Test Group ◽  
Nasal Symptom ◽  
Control Group ◽  
Virgin Coconut Oil ◽  
Control Groups ◽  
Significant Difference ◽  
And Control

Introduction: The role of virgin coconut oil in the treatment of allergic rhinitis is controversial. Thus, the aim of the present study is to determine the effects of virgin coconut oil ingestion, in addition to standard medications, on allergic rhinitis. We also studied the side effects of consumption of virgin coconut oil. Methods: Fifty two subjects were equally divided into test and control groups. All subjects received a daily dose of 10mg of loratadine for 28 days. The test group was given 10ml of virgin coconut oil three times a day in addition to loratadine. The symptoms of allergic rhinitis were scored at the beginning and end of the study. Results:, the symptom score were divided into nasal and non-nasal symptom scores. Sneezing score showed a significant difference, however the score was more in control group than test group, indicating that improvement in symptom was more in control group. The rest of the nasal symptom and non-nasal symptom score showed no significant difference between test and control groups. Approximately 58% of the test subjects developed side effects from consumption of virgin coconut oil, mainly gastrointestinal side effects. Conclusion: In the present study, ingestion of virgin coconut oil does not improve the overall and individual symptoms of allergic rhinitis, furthermore it has side effects.

Enrichment of common carp (Cyprinus carpio) diet with Malic acid: Effects on skin mucosal immunity, antioxidant defecne and growth performance

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Roghieh Safari ◽  
Seyed Hossein Hoseinifar ◽  
Maryam Dadar ◽  
Hien Van Doan
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Malic Acid ◽  
Control Group ◽  
Skin Mucus ◽  
Antioxidant Genes ◽  
Treatment Comparison ◽  
Genes Expression ◽  
Significant Difference ◽  
And Control

AbstractThe present study investigated possible effects of dietary malic acid on the expression of immunity, antioxidant and growth related genes expression as well as skin mucus immune parameters in common carp. Common carp (Cyprinus carpio) fingerlings were fed diets supplemented with different levels (0 [control], 0.5%, 1%, 2%) of malic acid (MA) for 60 days. The results revealed highest expression levels of immune-related genes (tnf-alpha, il1b, il8 and lyz) in skin of common carp fed 2% MA (P < 0.05). Regarding 1% MA treatment comparison with control group, significant difference was noticed just in case of lyz (P < 0.05). Evaluation of growth related genes expression revealed no significant difference between treatments (P > 0.05). The study of antioxidant related genes (gsta and gpx) in common carp skin fed with MA, showed significant difference between treated groups and control (P < 0.05). Carps fed with 2% MA had highest alkaline phosphatase activity in skin mucus compared other treated groups and control (P < 0.05). There were no significant difference between 0.5% and 1% and control (P > 0.05). The study of total protein and total immunoglobulin (Ig) in common carp skin musus revealed no alteration following MA treatment (P > 0.05). The present data demonstrated that feeding with MA altered immune and antioxidant genes expression in skin mucus of common carp.

THE EFFECT OF THE ATTITUDE TOWARD BREASTFEEDING CONCEPT BASED COMIC ON THE ADOLESCENCE'S ATTITUDE TOWARD EXCLUSIVE BREASTFEEDING

2017 ◽  
Vol 1 (2) ◽  
pp. 138
Author(s):  
Mekar Dwi Anggraeni ◽  
Lutfatul Latifah ◽  
Aprilia Kartikasari ◽  
Ima Rismawati
Keyword(s):  
Exclusive Breastfeeding ◽  
Nuclear Family ◽  
T Test ◽  
Breastfeeding Duration ◽  
Control Group ◽  
Marriage Age ◽  
First Marriage ◽  
Significant Difference ◽  
Post Test ◽  
And Control

Background and purpose: The earlier development of the attitude toward exclusive breastfeeding produces the longer exclusive breastfeeding duration. Considering the first marriage age among Indonesian, the attitude toward exclusive breastfeeding should be developed at the adolescence age. The purpose of this study was to examine the effect of the attitude toward breastfeeding concept based comic on the adolescent's attitude toward exclusive breastfeeding. Method: This was a quasy experimental posttest only with control group study. The respondents were provided an comic. The respondent's attitude toward exclusive breastfeeding was measured using The Breastfeeding Attitude Questionnaire. Data were analyzed using independent and dependent t test. Results: The majority of respondents were aged 17 years old in both intervention (70%) and control grup (63%), first child in both intervention (23,3%) and control grup (26,7%), and had a nuclear family in both intervention (80%) and control grup (90%). The independent t test showed that there was a significant difference between post-test scores among the intervention and control groups (t = 5,602, p < 0,01). Conclusion and recommendation: Nurses may use the Attitude Toward Breastfeeding based comic to increase the Adolescence's attitude toward breastfeeding.Keywords: Comic, Attitudes Toward Exclusive Breastfeeding, Adolescence

Impact of intrawound vancomycin powder on prevention of surgical site infection after posterior spinal surgery

2021 ◽  
pp. 1-9
Author(s):  
Hiroki Ushirozako ◽  
Tomohiko Hasegawa ◽  
Yu Yamato ◽  
Go Yoshida ◽  
Tatsuya Yasuda ◽  
...  
Keyword(s):  
Propensity Score ◽  
Spinal Surgery ◽  
Control Group ◽  
Control Groups ◽  
Propensity Score Model ◽  
Significant Difference ◽  
Surgical Data ◽  
Vancomycin Powder ◽  
Vancomycin Group ◽  
And Control

OBJECTIVESurgical site infection (SSI) after posterior spinal surgery is one of the severe complications that may occur despite administration of prophylactic antibiotics and the use of intraoperative aseptic precautions. The use of intrawound vancomycin powder for SSI prevention is still controversial, with a lack of high-quality and large-scale studies. The purpose of this retrospective study using a propensity score–matched analysis was to clarify whether intrawound vancomycin powder prevents SSI occurrence after spinal surgery.METHODSThe authors analyzed 1261 adult patients who underwent posterior spinal surgery between 2010 and 2018 (mean age 62.3 years; 506 men, 755 women; follow-up period at least 1 year). Baseline and surgical data were assessed. After a preliminary analysis, a propensity score model was established with adjustments for age, sex, type of disease, and previously reported risk factors for SSI. The SSI rates were compared between patients with intrawound vancomycin powder treatment (vancomycin group) and those without (control group).RESULTSIn a preliminary analysis of 1261 unmatched patients (623 patients in the vancomycin group and 638 patients in the control group), there were significant differences between the groups in age (p = 0.041), body mass index (p = 0.013), American Society of Anesthesiologists classification (p < 0.001), malnutrition (p = 0.001), revision status (p < 0.001), use of steroids (p = 0.019), use of anticoagulation (p = 0.033), length of surgery (p = 0.003), estimated blood loss (p < 0.001), and use of instrumentation (p < 0.001). There was no significant difference in SSI rates between the vancomycin and control groups (21 SSIs [3.4%] vs 33 SSIs [5.2%]; OR 0.640, 95% CI 0.368–1.111; p = 0.114). Using a one-to-one propensity score–matched analysis, 444 pairs of patients from the vancomycin and control groups were selected. There was no significant difference in the baseline and surgical data, except for height (p = 0.046), between both groups. The C-statistic for the propensity score model was 0.702. In the score-matched analysis, 12 (2.7%) and 24 (5.4%) patients in the vancomycin and control groups, respectively, developed SSIs (OR 0.486, 95% CI 0.243–0.972; p = 0.041). There were no systemic complications related to the use of vancomycin.CONCLUSIONSThe current study showed that intrawound vancomycin powder was useful in reducing the risk of SSI after posterior spinal surgery by half, without adverse events. Intrawound vancomycin powder use is a safe and effective procedure for SSI prevention.

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