scholarly journals In-office tooth bleaching effectiveness with different soft-tissue barriers – randomized controlled trial

2021 ◽  
Vol 62 (3) ◽  
Author(s):  
Ana Cardoso ◽  
◽  
Ruben Pereira ◽  
João Silveira ◽  
Susana Dias ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Soft Tissue ◽  
Statistical Tests ◽  
Controlled Trial ◽  
Clinical Effectiveness ◽  
Tooth Bleaching ◽  
Mean Values ◽  
Tissue Protection ◽  
Clinical Recommendation ◽  
Group 2

Objectives: To evaluate the tooth bleaching effectiveness of a 6% hydrogen peroxide paint-on varnish with two different types of soft-tissue protection materials. Methods: Twenty patients were screened according to inclusion and exclusion criteria, submitted to professional dental prophylaxis, and randomly allocated to one of the two groups. An in-office bleaching technique protocol was performed (VivaStyle Paint On PIus, lvoclar- Vivadent®, Liechtenstein) with two different soft-tissue protection materials: Group 1 – Vaseline; Group 2 – block-out resin. Bleaching effectiveness was evaluated with ΔE00 and ΔWID, calculated from the CIE L*a*b* values obtained by spectrophotometry analysis (SpectroShade). Appropriate statistical tests were performed to analyze intragroup differences in CIE L*a*b* and WID values and intergroup differences in ΔE00 and ΔWID with α=0.05. Results: Both groups presented statistically significant (P<0.01) differences in CIE L*a*b* and WID. Both ΔE00 and ΔWID surpassed the acceptability threshold (ΔE00 > 1.8; ΔWID > 2.60), and the ΔWID was mostly classified as hardly acceptable differences. Group 2 presented higher statistically significant (P<0.01) mean values with ΔE00 = 3.5 ± 1.5 and ΔWID = 8.6 ± 4.2. Conclusions: The 6% hydrogen peroxide paint-on varnish tooth bleaching technique showed clinical effectiveness. However, effectiveness varied with the soft-tissue protection material used, with better results when applying a block-out resin, thus suggesting its clinical recommendation.

scholarly journals Effects of Amorphous Calcium Phosphate Administration on Dental Sensitivity during In-Office and At-Home Interventions

2018 ◽  
Vol 6 (4) ◽  
pp. 52 ◽  
Author(s):  
Giacomo Oldoini ◽  
Antonino Bruno ◽  
Anna Genovesi ◽  
Luca Parisi
Keyword(s):  
Hydrogen Peroxide ◽  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Potassium Fluoride ◽  
Tooth Bleaching ◽  
Carbamide Peroxide ◽  
Casein Phosphopeptides ◽  
Group 2 ◽  
Group 1 ◽  
At Home

Background. Tooth bleaching is the most frequently employed whitening procedure in clinics. The major side effect of tooth bleaching is dental sensitivity during and after the treatment. Here, we evaluated whether the administration of amorphous calcium phosphate (ACP), during in-office and at-home procedures may impact on dental sensitivity. Methods. Eighty patients, responding to the study requirements were enrolled according to the following criteria. Group 1 (n = 40), received in-office, 10% ACP prior to 30% professional hydrogen peroxide application. The whitening procedure continued at home using 10% carbamide peroxide with 15% ACP for 15 days. Group 2 (n = 40) received only 30% hydrogen peroxide application and continued the whitening procedures at home, using 10% carbamide hydroxide, without ACP- Casein phosphopeptides (CPP), for 15 days. Dental sensitivity was recorded with a visual analogue scale (VAS) at baseline, immediately after, and at 15 days after treatment in the two groups. Results. We observed that patients receiving ACP in the bleaching mixture experienced decreased dental sensitivity (* p ≤ 0.05), as detected by VAS scale analysis immediately following the procedures. Patients receiving ACP-CPP during at-home procedures showed a statistically significant (*** p ≤ 0.0001) reduction of dental sensitivity. Conclusions. We demonstrated that ACP-CPP administration, while exerting the same whitening effects as in control subjects receiving potassium fluoride (PF), had an impact on the reduction of dental sensitivity, improving patient compliance.

scholarly journals Comparative study of the soft tissue of young Japanese-Brazilian, Caucasian and Mongoloid patients

2013 ◽  
Vol 18 (2) ◽  
pp. 116-124 ◽  
Author(s):  
Thais Maria Freire Fernandes ◽  
Arnaldo Pinzan ◽  
Renata Sathler ◽  
Marcos Roberto de Freitas ◽  
Guilherme Janson ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Soft Tissues ◽  
Statistical Tests ◽  
Analysis Of Covariance ◽  
Lower Lip ◽  
Mean Values ◽  
Brazilian Sample ◽  
Japanese Brazilians ◽  
Normal Occlusion ◽  
Tissue Characteristics

OBJECTIVE: To determine the normality mean values in the soft tissue cephalometric measurements of young Japanese-Brazilian, with normal occlusion and compare the results of the variables with compatible samples of young Caucasians and Mongoloids. METHODS: Forty radiographs of young Caucasians, 32 of Japanese-Brazilians and 33 of Mongoloids were used. The three samples presented individuals with normal occlusion and well-balanced face. The samples were divided by gender due to the soft tissue characteristics and to facilitate comparison. The following statistical tests were performed: Analysis of variance (ANOVA) and analysis of covariance (ANCOVA) with p < 0.05. RESULTS: The Japanese-Brazilian sample of females showed thinner soft tissues in the nasion region and smaller nose when compared to the Caucasians. The Mongoloid sample showed thinner tissues in the supramentonian and pogonion regions. In males, the Japanese-Brazilians had thinner tissues in the nasion region; thicker lower lip and supramentonian region in comparison to the Caucasian sample. For the Mongoloid, soft tissue was thicker in the glabella and ANS-Sn regions. CONCLUSION: It is necessary to use specific soft tissue standards for this mixed race.

scholarly journals Clinical Efficacy of Four In-Office Vital Tooth Bleaching Products with Different Concentrations of Hydrogen Peroxide: A Randomized, Quadruple-Blind Clinical Trial

2020 ◽  
Vol 10 (13) ◽  
pp. 4650
Author(s):  
Marta Peydro-Herrero ◽  
José María Montiel-Company ◽  
Carlos Labaig-Rueda ◽  
María Fernanda Solá-Ruiz ◽  
Rubén Agustín-Panadero ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Hydrogen Peroxide ◽  
Tooth Bleaching ◽  
High Concentration ◽  
Tooth Color ◽  
Color Changes ◽  
Group 4 ◽  
Anterior Teeth ◽  
Group 3 ◽  
Group 2

Background: Dental bleaching has become an everyday procedure for treating teeth presenting discoloration, as a therapy on its own or as a part of restorative dentistry. The most widely used bleaching products available for vital teeth are hydrogen peroxide and carbamide peroxide, marketed as a range of products adapted to different treatment modes. The purpose of the study was to evaluate the clinical whitening efficacy of four high-concentration bleaching products for vital teeth applied in single in-office sessions. Methods: This clinical trial included 40 patients divided into four groups according to the concentration of the hydrogen peroxide-based (HP) product used (Group 1: HP 35%; Group 2: HP 37.5%; Group 3: HP 38%; Group 4: HP 40%). Each patient received one in-office whitening treatment of maxillary and mandibular anterior teeth (incisors, canines, and premolars), making a total of 791 teeth. The color changes produced in central incisors and canines were measured. Results: All groups underwent significant color changes from initial to final evaluations for color parameters L*, a*, and b*. No significant differences between the four groups were found for either the L* or a* parameters. Analysis of the b* parameter found significant differences between the HP 38% group and the HP 35% group. No significant differences in ΔE were found between the four groups (ANOVA p = 0.174). HP 38% obtained the highest ΔE (4.63), while HP 40% obtained 4.01. Conclusions: A single in-office whitening session, regardless of the bleaching product used, modifies tooth color effectively. All four products achieved increases in the L* parameter and significant reductions in parameters a* and b*. The ΔE did not show significant differences between the four groups. In-office whitening with high concentration hydrogen-peroxide-based products was found to be an effective treatment for moderate and severe dental discoloration.

scholarly journals Adolescents’ experiences of brief psychosocial intervention for depression: An interpretative phenomenological analysis of good-outcome cases

2019 ◽  
Vol 25 (1) ◽  
pp. 106-118
Author(s):  
Darshita Dhanak ◽  
Lisa Thackeray ◽  
Bernadka Dubicka ◽  
Raphael Kelvin ◽  
Ian M Goodyer ◽  
...  
Keyword(s):  
Psychosocial Intervention ◽  
Interpretative Phenomenological Analysis ◽  
Adolescent Depression ◽  
Controlled Trial ◽  
Clinical Effectiveness ◽  
Phenomenological Analysis ◽  
Good Treatment ◽  
Good Outcome ◽  
Novel Approach ◽  
Good Treatment Response

Background: Brief psychosocial intervention (BPI) is a treatment for adolescent depression that has recently demonstrated clinical effectiveness in a controlled trial. The aim of this study is to explore experiences of adolescents with major depression receiving BPI treatment in the context of good treatment outcomes. Method: A subsample of five interviews from a larger study of adolescents’ experiences of BPI was purposively selected, focusing on good-outcome cases. Interviews were analysed using interpretative phenomenological analysis to provide a richer understanding of participants’ experiences of overcoming depression in the BPI group. Results: Four central themes were identified: ‘Being heard and feeling safe’, ‘Collaborative working enhancing therapy’, ‘Gaining a different perspective on one’s self and relationships’ and ‘A positive therapeutic relationship’. Conclusion: BPI is a novel approach with promising clinical effectiveness. Utilising adolescents’ experiences has revealed potential psychological mechanisms of good treatment response to BPI. Overall implications for clinical practice with depressed adolescents are discussed.

Comparison of phaco time parameters in eyes with and without glaucoma filtration surgery due to pseudoexfoliation glaucoma

2021 ◽  
pp. 112067212110177
Author(s):  
Ayse Gul Kocak Altintas ◽  
Cagri Ilhan
Keyword(s):  
Clinical Characteristics ◽  
Pseudoexfoliation Glaucoma ◽  
Filtration Surgery ◽  
Glaucoma Filtration Surgery ◽  
Mean Values ◽  
Time Parameters ◽  
The Mean ◽  
Group 2 ◽  
Surgical Manipulations ◽  
Phaco Time

Purpose: To compare the phaco time parameters including ultrasound time (UST), effective phaco time (EPT), and average phaco power (APP) in eyes with pseudoexfoliation glaucoma (PEG) and had or had not glaucoma filtration surgery. Methods: In this retrospective comparative study, Group 1 was constructed with 84 PEG patients who had not operated previously, and Group 2 was constructed with 49 PEG patients who had glaucoma filtration surgery. The mean values of UST, EPT, and APP were compared. The preoperative clinical characteristics and surgical manipulations were also compared. Results: The mean ages and male-to-female ratios of the groups were similar ( p > 0.05, for both). There was no difference in the preoperative clinical characteristics, including biometric values between the groups ( p > 0.05, for all). Some surgical manipulations, including pupillary stretching ( p = 0.004), pupillary membrane peeling ( p = 0.021), iris hook using ( p = 0.041), and capsular tension ring implantation ( p = 0.041), were significantly performed more commonly in Group 2. Although the mean UST and EPT values were similar ( p > 0.05, for both), the mean APP value was significantly lower in Group 2 ( p = 0.011). Conclusion: The lower APP parameter was observed in PEG patients having had glaucoma filtration surgery. Needing more surgical manipulation to overcome poor pupillary dilation and weak zonular instability can be a reason for this result.

Does soft tissue mobilization assist static stretching to improve hamstring flexibility? A randomized controlled trial

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Shibili Nuhmani
Keyword(s):  
Soft Tissue ◽  
Controlled Trial ◽  
Knee Extension ◽  
Repeated Measure ◽  
Control Group ◽  
Static Stretching ◽  
Significant Difference ◽  
Hamstring Flexibility ◽  
Soft Tissue Mobilization ◽  
Experimental Group

AbstractObjectivesObjective of the study is to investigate whether Soft tissue mobilization (STM) can assist with static stretching to improve hamstring flexibly.MethodsThe design of the study was repeated measure design. The study was conducted at the physical therapy laboratory of Jamia Hamdard University, New Delhi. Participants included 78 healthy males with hamstring tightness, randomly assigned to either the control group (static stretching) or the experimental group (STM and static stretching). The experimental group received five sets of four different STM techniques, followed by two sets of 30-s static stretches 3 days per week over the course of 12 weeks. The control group received 5 min of sham ultrasound with an inactive probe prior to static stretching. Active knee extension test (AKE) was the outcome measure.ResultsBoth groups showed significant improvement in AKE compared with the baseline measurements. With ingroup analysis showed a significant difference in AKE across all measured time periods (weeks 4, 8, and 12) with pre-test in both groups (p<0.05). No significant difference in AKE improvement was found between groups (p>0.05).ConclusionThe results of this study show that STM prior to static stretching does not significantly improve hamstring flexibility among healthy individuals. Although this study cannot be generalized, the results may be useful for evidence-based practice in the management of hamstring tightness.

scholarly journals Management of walled-off necrosis with nasocystic irrigation with hydrogen peroxide versus biflanged metal stent: randomized controlled trial

2021 ◽  
Vol 09 (07) ◽  
pp. E1108-E1115
Author(s):  
Sudhir Maharshi ◽  
Shyam Sunder Sharma ◽  
Sandeep Ratra ◽  
Bharat Sapra ◽  
Dhruv Sharma
Keyword(s):  
Hydrogen Peroxide ◽  
Adverse Events ◽  
Clinical Success ◽  
Controlled Trial ◽  
Procedure Time ◽  
Metal Stent ◽  
Technical Success ◽  
Group A ◽  
Group B ◽  
Walled Off Necrosis

Abstract Background and study aims Walled-off necrosis (WON) is a known complication of acute necrotizing pancreatitis (ANP). There is no study comparing nasocystic irrigation with hydrogen peroxide (H2O2) versus biflanged metal stent (BMS) in the management of WON. The aim of this study was to compare the clinical efficacy of both the treatment strategies. Patients and methods This study was conducted on patients with symptomatic WON who were randomized to nasocystic irrigation with H2O2 (Group A) and BMS placement (Group B). Primary outcomes were clinical and technical success while secondary outcomes were procedure time, adverse events, need for additional procedures, duration of hospitalization, and mortality. Results Fifty patients were randomized into two groups. Group A (n = 25, age 37.8 ± 17.6 years, 16 men) and Group B (n = 25, age 41.8 ± 15.2 years, 17 men). There were no significant differences in baseline characteristics between the two groups. The most common etiology of pancreatitis was alcohol, observed in 27 (54 %) patients. Technical success (100 % vs 96 %, P = 0.98), clinical success (84 % vs 76 %, P = 0.76), requirement of additional procedures (16 % vs 24 %, P = 0.70) and adverse events (4 vs 7, P = 0.06) were comparable in both the groups. The duration to clinical success (34.4 ± 12 vs 14.8 ± 10.8 days, P = 0.001) and procedure time (36 ± 15 vs 18 ± 12 minutes, P = 0.01) were longer in Group A compared to Group B. Conclusions Nasocystic irrigation with H2O2 and BMS are equally effective in the management of WON but time to clinical success and procedure time is longer with nasocystic irrigation.

Sign in / Sign up

Export Citation Format

Share Document