Patients’ Assessments of Tooth Sensitivity Increase One Day Following Different Whitening Treatments

The craniomandibular dysfunction (CMD) is a pathology that can appear at early ages. In a sample of 36 childrenresiding in Madrid (Spain), of both sexes, with ages between 7 and 13 years, the prevalence of signs and symptomsof CMD was analyzed. For that purpose, we did a dental and muscular examination, together with temporomandibularjoints, functional and occlusal examination, and completed with a specific questionnaire. The results revealedthat 100% showed some sign or sympthom of CMD. 77,8% of the pacients presented 3 or more CMD signs.The most prevalent were painful muscle palpation (94,4%), together with sliding anteriorly (91,7%), painful jointpalpation (69,4%), wear facets in permanent teeth (41,7%) and altered opening and closing trayectory (38,9%). Onthe other hand, only 38,9% showed any CMD symptom. The most prevalent symptoms were night teeth grinding(27,8%), followed by tooth sensitivity (19,4%) and fullness in the ears (16,7%). We conclude that in our sample,25% presented mild CMD (less that 3 signs or symptoms), 58,3% presented moderate CMD (from 3 to 6 signs orsymptoms) and 16,7% showed severe CMD (more than 6 symptoms). Nevertheless, it’s important to remark thatnone of these pacients came seeking treatment for his CMD and these symptoms were refered only when beingasked. Hence the importance of a comprehensive clinic history to precociously diagnose this pathology and havethe ability to prevent its progression.

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Clinical analysis of color change and tooth sensitivity to violet LED during bleaching treatment: A case series with split-mouth design

Photodiagnosis and Photodynamic Therapy ◽

10.1016/j.pdpdt.2019.05.016 ◽

2019 ◽

Vol 27 ◽

pp. 59-65 ◽

Cited By ~ 5

Author(s):

Marjorie de Oliveira Gallinari ◽

Luciano Tavares Angelo Cintra ◽

Morganna Borges de Almeida Souza ◽

Ana Carolina Souza Barboza ◽

Lara Maria Bueno Esteves ◽

...

Keyword(s):

Color Change ◽

Case Series ◽

Clinical Analysis ◽

Tooth Sensitivity ◽

Bleaching Treatment

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Supplemental Material for How Does Anxiety Sensitivity Increase Risk of Chronic Medical Conditions?

Clinical Psychology Science and Practice ◽

10.1037/h0101753.supp ◽

2018 ◽

Keyword(s):

Anxiety Sensitivity ◽

Chronic Medical Conditions ◽

Medical Conditions ◽

Increase Risk ◽

Sensitivity Increase

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Increase of Magnetic Sensitivity of Magnetically Controlled MEMS Switches

MRS Advances ◽

10.1557/adv.2016.395 ◽

2016 ◽

Vol 1 (34) ◽

pp. 2393-2399

Author(s):

Sergey M. Karabanov ◽

Dmitry V. Suvorov ◽

Gennady P. Gololobov ◽

Dmitry Y. Tarabrin ◽

Evgeny V. Slivkin

Keyword(s):

Magnetic Field ◽

Research Results ◽

Mems Switches ◽

Field Concentrator ◽

Magnetic Sensitivity ◽

Sensitivity Increase

ABSTRACTThe paper presents the research results of influence of various parameters of magnetic field concentrator geometry on sensitivity of magnetically controlled MEMS switches. It is shown that magnetic sensitivity increases with the growth of the magnetic concentrator width and practically does not depend on its length. It is established that dependence of magnetic sensitivity on the overlap length of the ferromagnetic flexible contact-concentrator has a minimum corresponding to 2-3 lengths of the contact gap. Recommendations on sensitivity increase of magnetically controlled MEMS switches are provided.

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Tooth sensitivity

The Journal of the American Dental Association ◽

10.14219/jada.archive.1978.0473 ◽

1978 ◽

Vol 97 (1) ◽

pp. 11

Author(s):

I. Gedalia

Keyword(s):

Tooth Sensitivity

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Sensory mechanisms in dentine: A literature review of light microscopy (LM), transmission microscopy (TEM), scanning microscopy (SEM) & electro physiological (EP) tooth sensitivity: Is the ciliary organelle on the odontoblast the elusive primary nociceptor?

Dental Oral and Craniofacial Research ◽

10.15761/docr.1000249 ◽

2017 ◽

Vol 4 (3) ◽

Author(s):

Charles F. Cox ◽

Keizo Suzuki ◽

Hiroyasu Yamaguchi ◽

John D. Ruby ◽

Shiro Suzuki ◽

...

Keyword(s):

Literature Review ◽

Light Microscopy ◽

Scanning Microscopy ◽

Tooth Sensitivity ◽

Transmission Microscopy ◽

Sensory Mechanisms

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Combination of at-home and in-office bleaching techniques: case series

RGO - Revista Gaúcha de Odontologia ◽

10.1590/1981-863720200003620190149 ◽

2021 ◽

Vol 69 ◽

Author(s):

Marcela Alvarez FERRETTI ◽

Matheus KURY ◽

Beatriz Curvello de MENDONÇA ◽

Marcelo GIANNINI ◽

Vanessa CAVALLI ◽

...

Keyword(s):

Hydrogen Peroxide ◽

Case Series ◽

Tooth Bleaching ◽

Central Incisor ◽

Carbamide Peroxide ◽

Tooth Sensitivity ◽

Tooth Color ◽

Shade Guide ◽

At Home

ABSTRACT Tooth bleaching is one of the most conservative aesthetic techniques. At-home and in-office bleaching may be performed, as well as the combination of both techniques. As this combination may be done in different manners, distinct orders of combinations were proposed in this report. A 24 years-old man, whose upper central incisor and canine shades were A2 and A3 respectively, was initially treated by chair-side with 40-min application of 40% hydrogen peroxide (HP) for two sessions. Afterwards, an two-week overnight at-home bleaching was performed with 10% carbamide peroxide (CP). The shade of upper central incisors changed to 1M1 and canine was B1. Conversely, a 30 years-old woman was firstly conducted with at-home bleaching (overnight 4-weeks 10% CP) and, subsequently, with a single appointment of in-office bleaching for 45 minutes (35% HP). The shade of her upper central incisor changed from A1 to 0.5M1 and the upper canine from A3 to B1. The VITA classical (A1-D4) shade guide and VITA Bleached guide 3D-MASTER were used to determine the tooth color during the treatments. In both bleaching treatments, patients reported no significant tooth sensitivity and the final outcomes met their expectation.

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Effect of 10% and 15% Carbamide Peroxide on Fracture Toughness of Human Dentin In Situ

Operative Dentistry ◽

10.2341/12-127-c ◽

2013 ◽

Vol 38 (2) ◽

pp. 142-150 ◽

Cited By ~ 3

Author(s):

LE Tam ◽

P Bahrami ◽

O Oguienko ◽

H Limeback

Keyword(s):

Fracture Toughness ◽

Placebo Group ◽

Color Change ◽

Carbamide Peroxide ◽

Tooth Sensitivity ◽

Custom Made ◽

Dental Hard Tissues ◽

Significant Difference

SUMMARY Purpose Although damage to the structural integrity of the tooth is not usually considered a significant problem associated with tooth bleaching, there have been some reported negative effects of bleaching on dental hard tissues in vitro. More studies are needed to determine whether the observed in vitro effects have practical clinical implications regarding tooth structural durability. Objectives This in situ study evaluated the effect of 10% and 15% carbamide peroxide (CP) dental bleach, applied using conventional whitening trays by participants at home, on the fracture toughness of dentin. Methods Ninety-one adult volunteers were recruited (n ≈ 30/group). Compact fracture toughness specimens (approximately 4.5 × 4.6 × 1.7 mm) were prepared from the coronal dentin of recently extracted human molars and gamma-radiated. One specimen was fitted into a prepared slot, adjacent to a maxillary premolar, within a custom-made bleaching tray that was made for each adult participant. The participants were instructed to wear the tray containing the dentin specimen with placebo, 10% CP, or 15% CP treatment gel overnight for 14 nights and to store it in artificial saliva when not in use. Pre-bleach and post-bleach tooth color and tooth sensitivity were also evaluated using ranked shade tab values and visual analogue scales (VASs), respectively. Within 24–48 hours after the last bleach session, the dentin specimens were tested for fracture toughness using tensile loading at 10 mm/min. Analysis of variance, Kruskal-Wallis, χ2, Tukey's, and Mann-Whitney U tests were used for statistical analysis. The level of significance was set at p<0.05 for all tests, except for the Mann-Whitney U tests, which used a Bonferroni correction for post hoc analyses of the nonparametric data (p<0.017). Results The placebo, 10% CP, and 15% CP groups contained 30, 31, and 30 participants, respectively. Mean fracture toughness (+ standard deviation) for the placebo, 10% CP, and 15% CP groups were 2.3 ± 0.9, 2.2 ± 0.7, and 2.0 ± 0.5 MPa*m1/2 respectively. There were no significant differences in mean fracture toughness results among the groups (p=0.241). The tooth sensitivity VAS scores indicated a significantly greater incidence (p=0.000) and degree of tooth sensitivity (p=0.049 for VAS change and p=0.003 for max VAS) in the bleach groups than in the placebo group. The color change results showed generally greater color change in the bleach groups than in the placebo group (p=0.008 for shade guide determination and p=0.000 for colorimeter determination). Conclusions There were no significant differences in in situ dentin fracture toughness results among the groups. The results of this study provide some reassurance that dentin is not overtly weakened by the bleaching protocol used in this study. However, the lack of a statistically significant difference cannot be used to state that there is no effect of bleach on dentin fracture toughness.

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