Effect of Two In-office Whitening Agents on the Enamel Surface In Vivo: A Morphological and Non-contact Profilometric Study

10.2341/07-89 ◽  
2008 ◽  
Vol 33 (2) ◽  
pp. 127-134 ◽  
Author(s):  
M. Cadenaro ◽  
L. Breschi ◽  
C. Nucci ◽  
F. Antoniolli ◽  
E. Visintini ◽  
...  
Keyword(s):  
Clinical Relevance ◽  
Structural Damage ◽  
Enamel Surface ◽  
In Vivo Study ◽  
Repeated Applications ◽  
Reliable Procedure

Clinical Relevance This in vivo study supports the hypothesis that the use of in-office bleaching agents is a safe and reliable procedure, inducing no structural damage to the enamel surface, even after prolonged and repeated applications.

In Vivo Study of Two Carbamide Peroxide Gels with Different Desensitizing Agents

10.2341/07-10 ◽  
2007 ◽  
Vol 32 (6) ◽  
pp. 549-555 ◽  
Author(s):  
B. A. Matis ◽  
M. A. Cochran ◽  
G. J. Eckert ◽  
J. I. Matis
Keyword(s):  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Clinical Relevance ◽  
Potassium Nitrate ◽  
In Vivo Study ◽  
Carbamide Peroxide ◽  
Desensitizing Agents

Clinical Relevance Under the conditions of this study, 15% carbamide peroxide with potassium nitrate and fluoride exhibited greater bleaching potential but exhibited no difference in sensitivity compared to 16% carbamide peroxide with amorphous calcium phosphate.

scholarly journals Remineralization and repair of enamel surface by biomimetic Zn-carbonate hydroxyapatite containing toothpaste: a comparative in vivo study

2014 ◽  
Vol 5 ◽  
Author(s):  
Marco Lelli ◽  
Angelo Putignano ◽  
Marco Marchetti ◽  
Ismaela Foltran ◽  
Francesco Mangani ◽  
...  
Keyword(s):  
Enamel Surface ◽  
In Vivo Study ◽  
Carbonate Hydroxyapatite

scholarly journals Estimation of Clinical Axial Extension of Class II Caries Lesions with Ultraspeed and Digital Radiographs: An In-vivo Study

2008 ◽  
Vol 33 (6) ◽  
pp. 613-621 ◽  
Author(s):  
M. Bin-Shuwaish ◽  
J. B. Dennison ◽  
P. Yaman ◽  
G. Neiva
Keyword(s):  
Clinical Relevance ◽  
Class Ii ◽  
In Vivo Study ◽  
Digital Radiographs ◽  
Axial Extension ◽  
Caries Lesions

Clinical Relevance Both Ultraspeed and RVG-6000 radiographs underestimated the true clinical extension of Class II caries lesions; however, the RVG-6000 was more accurate in estimating the axial extension of a lesion than Ultraspeed films. Placement of Ultraspeed film was more pleasant for the patient than the RVG-6000 size 2 sensor.

scholarly journals Evaluation of enamel roughness after the removal of brackets bonded with different materials: In vivo study

2021 ◽  
Vol 32 (5) ◽  
pp. 34-40
Author(s):  
Rodrigo Vieira Caixeta ◽  
Sandrine Bittencourt Berger ◽  
Murilo Baena Lopes ◽  
Eloisa Aparecida Carlesse Paloco ◽  
Élcio Mário Faria-Júnior ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Initial Conditions ◽  
Glass Ionomer Cement ◽  
Enamel Surface ◽  
In Vivo Study ◽  
Adhesive Remnant Index ◽  
Resin Modified Glass Ionomer ◽  
Before And After ◽  
Orthodontic Patients

Abstract The aims of this in vivo study were to evaluate the effect of bonding with resin-modified glass ionomer cement (RMGIC) and to assess enamel surface roughness before and after the removal of brackets bonded with composite or RMGIC from the maxillary central incisors. Fifteen orthodontic patients were selected for the study. For each patient, the teeth were rinsed and dried, and brackets were bonded with composite (Transbond XT) and RMGIC (Vitremer Core Buildup/Restorative). At the conclusion of orthodontic treatment, their brackets were removed. Dental replicas were made of epoxy resin in initial conditions (before bonded) and after polishing with an aluminum oxide disc system. Adhesive remnant index (ARI) and surface roughness was measured on the dental replicas and data were evaluated statistically by Mann-Whitney and paired t-test, respectively. No bracket debonding occurred during patients’ treatment periods. It was verified that the ARI values of the two maxillary central incisors were similar (p = 0.665). For both bonding materials, the ARI value of 3 was predominant. After polishing, surface roughness was similar in the composite and RMGIC groups (0.245 μm and 0.248 μm, respectively; p = 0.07). In both groups, enamel surface roughness values were significantly lower after polishing compared with the initial condition (p < 0.001). RMGIC promoted efficiency in cementing brackets without fail during treatment; the choice of composite or RMGIC materials was not a factor that influenced the roughness of the enamel surface, however, polishing led to smoother surfaces than those found at the beginning of the treatment.

Comparative In Vivo Study on the Desensitizing Efficacy of Dentin Desensitizers and One-bottle Self-etching Adhesives

2010 ◽  
Vol 35 (3) ◽  
pp. 279-286 ◽  
Author(s):  
X. Yu ◽  
B. Liang ◽  
X. Jin ◽  
B. Fu ◽  
M. Hannig
Keyword(s):  
Clinical Relevance ◽  
In Vivo Study ◽  
Dentin Hypersensitivity ◽  
The Individual

Clinical Relevance Dentin desensitizers and one-bottle self-etching adhesives can significantly reduce dentin hypersensitivity. Clinical desensitizing effectiveness depends on the individual dentin desensitizers/adhesives used.

scholarly journals Comparative Clinical Study of the Effectiveness of Three Different Bleaching Methods

2009 ◽  
Vol 34 (6) ◽  
pp. 635-641 ◽  
Author(s):  
M. Bizhang ◽  
Y-H. P. Chun ◽  
K. Damerau ◽  
P. Singh ◽  
W. H-M. Raab ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Clinical Study ◽  
Clinical Relevance ◽  
In Vivo Study ◽  
Bleaching Agent ◽  
Carbamide Peroxide ◽  
Over The Counter ◽  
Comparative Clinical Study ◽  
Bleaching Treatment

Clinical Relevance The efficacy of vital bleaching depends on the two aspects—viz, bleaching agent and the bleaching method. Results from this in vivo study show that 10% carbamide peroxide home-bleaching and 15% hydrogen peroxide in-office bleaching were more effective than a 6% hydrogen peroxide home-bleaching over-the-counter product up to three months after completion of the bleaching treatment.

scholarly journals Effect of Placement Agitation and Drying Time on Dentin Shear Bond Strength: An In Vivo Study

2009 ◽  
Vol 34 (5) ◽  
pp. 524-530 ◽  
Author(s):  
S. Tewari ◽  
A. Goel
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
In Vivo Study ◽  
Drying Time

Clinical Relevance Primer agitation and primer drying time both affect dentin shear bond strength in vivo.

scholarly journals Vitamin C mitigates oxidative/nitrosative stress and inflammation in doxorubicin-induced cardiomyopathy

2017 ◽  
Vol 313 (4) ◽  
pp. H795-H809 ◽  
Author(s):  
Gauri Akolkar ◽  
Danielle da Silva Dias ◽  
Prathapan Ayyappan ◽  
Ashim K. Bagchi ◽  
Davinder S. Jassal ◽  
...  
Keyword(s):  
Vitamin C ◽  
Structural Damage ◽  
Glucose Transporter ◽  
Nitrosative Stress ◽  
In Vivo Study ◽  
Sodium Ascorbate ◽  
Antioxidant Enzyme Activities ◽  
Transporter Proteins ◽  
Vit C

Increase in oxidative/nitrosative stress is one of the mechanisms associated with the development of cardiotoxicity due to doxorubicin (Dox), a potent chemotherapy drug. Previously, we reported mitigation of Dox-induced oxidative/nitrosative stress and apoptosis by vitamin C (Vit C) in isolated cardiomyocytes. In the present in vivo study in rats, we investigated the effect of prophylactic treatment with Vit C on Dox-induced apoptosis, inflammation, oxidative/nitrosative stress, cardiac dysfunction, and Vit C transporter proteins. Dox (cumulative dose: 15 mg/kg) in rats reduced systolic and diastolic cardiac function and caused structural damage. These changes were associated with a myocardial increase in reactive oxygen species, reduction in antioxidant enzyme activities, increased expression of apoptotic proteins, and inflammation. Dox also caused an increase in the expression of proapoptotic proteins Bax, Bnip-3, Bak, and caspase-3. An increase in oxidative/nitrosative stress attributable to Dox was indicated by an increase in superoxide, protein carbonyl formation, lipid peroxidation, nitric oxide (NO), NO synthase (NOS) activity, protein nitrosylation, and inducible NOS protein expression. Dox increased the levels of cardiac proinflammatory cytokines TNF-α, IL-1β, and IL-6, whereas the expression of Vit C transporter proteins (sodium-ascorbate cotransporter 2 and glucose transporter 4) was reduced. Prophylactic and concurrent treatment with Vit C prevented all these changes and improved survival in the Vit C + Dox group. Vit C also improved Dox-mediated systolic and diastolic dysfunctions and structural damage. These results suggest a cardioprotective role of Vit C in Dox-induced cardiomyopathy by reducing oxidative/nitrosative stress, inflammation, and apoptosis, as well as improving Vit C transporter proteins. NEW & NOTEWORTHY This in vivo study provides novel data that vitamin C improves cardiac structure and function in doxorubicin-induced cardiomyopathy by reducing oxidative/nitrosative stress, apoptosis, and inflammation along with upregulation of cardiac vitamin C transporter proteins. The latter may have a crucial role in improving antioxidant status in this cardiomyopathy.

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