Prophylaxis of the teeth; an application every 48 hours; 4 sessions

Dentin Sensitivity

Hypersensitivity Dentin

Dentine Hypersensitivity

Dentin Hypersensitivity

Prophylaxis, apply uniformly on the teeth, friccion for 10 seconds, wait 10 minutes, remove the gel from the teeth with cotton and abundant water.

Potassium Oxalate 5%

Potassium Oxalate 10%

Paulo V Soares

Clinical Evaluation of Different Potassium Oxalate Concentrations in Dentin Hypersensitivity Treatment

Clinical Evaluation of Different Potassium Oxalate Concentrations in Dentin: A Randomized Clinical Trial

Evaluation of the reduction in dentin hypersensitivity levels by using visual analog scale with a 3 weeks follow up.

PAULO VINICIUS SOARES

Professor

Federal University of Uberlandia

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.

Fundação de Amparo à Pesquisa do estado de Minas Gerais

The patient will receive the application of potassium oxalate 5% gel on vestibular surface teeth, for 10 minutes.

The patient will receive the application placebo gel on vestibular surface teeth, for 10 minutes.

Medicaments Substances in Therapeutic Use

Teeth will be cleaned using rubber cups associated to pumice and water
Relative isolation with roller cotton will be done;
Prior to each bleaching session, the patients will receive the potassium OXALATE 5%
Gingival dam will be performed using a fluid resin (Top Dam, FGM, Brazil) desensitivity gel application on vestibular surface, for 10 minutes.
A 35% hydrogen peroxide based bleaching agent will be mixed and applied on the vestibular surface of teeth, remaining for 40 minutes.

Potassium oxalate 5% gel

Teeth will be cleaned using rubber cups associated to pumice and water
Relative isolation with roller cotton will be done;
Prior to each bleaching session, the patients will receive the placebo gel
Gingival dam will be performed using a fluid resin (Top Dam, FGM, Brazil) desensitivity gel application on vestibular surface, for 10 minutes.
A 35% hydrogen peroxide based bleaching agent will be mixed and applied on the vestibular surface of teeth, remaining for 40 minutes.

Placebo gel

Flavia Pardo Salata Nahsan

Potassium Oxalate and Placebo and Post-bleaching Sensitivity

Evaluation of Tooth Sensitivity Related to in Office Bleaching in a Randomized Clinical Trial: Effect of Potassium Oxalate and Placebo

The tooth sensitivity will be assessed using a Visual analogue (VAS) and verbal scales. VAS consisted of a 10-cm scale 0 (no sensitivity) 10 (unbearable sensitivity). A slightly air-stream will be applied over the buccal surfaces of the central incisors, and the patients will record their sensitivity perception by pointing with a pen on the scale. The distance between the marking and the border of scale, relative to the absence of sensitivity will be measured. The measurements will be scored according to the distance from 0, using a digital caliper. The risk of tooth sensitivity will be determined by relative risk assessed by ratio between absolute risk of experimental condition by those observed in control. The 95% confidence interval will be calculated

The tooth sensitivity will be evaluated using a 5-point Verbal rating scale (VRS), where 0 = none, 1 = mild, 2 = moderate, 3 = considerable and 4 = severe. Score different from 0 will determine presence of sensitivity. The risk of tooth sensitivity will be determined by relative risk assessed by ratio between absolute risk of experimental condition by those observed in control. The 95% confidence interval will be calculated.

The tooth sensitivity will be assessed using a Visual analogue (VAS) and verbal scales. VAS consisted of a 10-cm scale 0 (no sensitivity) 10 (unbearable sensitivity). A slightly air-stream will be applied over the buccal surfaces of the central incisors, and the patients will record their sensitivity perception by pointing with a pen on the scale. The distance between the marking and the border of scale, relative to the absence of sensitivity will be measured. The measurements will be scored according to the distance from 0, using a digital caliper.

The tooth sensitivity will be evaluated using a 5-point Verbal rating scale (VRS), where 0 = none, 1 = mild, 2 = moderate, 3 = considerable and 4 = severe.

The tooth sensitivity will be evaluated using a 5-point Verbal rating scale (VRS), where 0 = none, 1 = mild, 2 = moderate, 3 = considerable and 4 = severe. Score different from 0 will determine presence of sensitivity. The risk of tooth sensitivity will be determined by relative risk assessed by ratio between absolute risk of experimental condition by those observed in control. The 95% confidence interval will be calculated

The color evaluation will be performed classical Vita guide.

Principal Investigator

The patient will receive the application of potassium nitrate 2% gel on vestibular surface teeth, for 10 minutes.

Teeth will be cleaned using rubber cups associated to pumice and water;
Relative isolation with roller cotton will be done;
Prior to each bleaching session, the patients will receive the potassium nitrate 2% desensitivity gel application on vestibular surface, for 10 minutes.
Gingival dam will be performed using a fluid resin (Top Dam, FGM, Brazil)
A 35% hydrogen peroxide based bleaching agent will be mixed and applied on the vestibular surface of teeth, remaining for 40 minutes.

Potassium nitrate 2% gel

Potassium Oxalate and Potassium Nitrate and Post-bleaching Sensitivity

Effect of Potassium Oxalate and Potassium Nitrate on Tooth Sensitivity Related to in Office Bleaching: Randomized Clinical Trial

The tooth sensitivity will be assessed using a Visual analogue (VAS) and verbal scales. VAS consisted of a 10-cm scale 0 (no sensitivity) 10 (unbearable sensitivity). A slightly air-stream will be applied over the buccal surfaces of the central incisors, and the patients will record their sensitivity perception by pointing with a pen on the scale. The distance between the marking and the border of scale, relative to the absence of sensitivity will be measured. The measurements will be scored according to the distance from 0, using a digital caliper. The tooth sensitivity will be evaluated using a 5-point Verbal rating scale (VRS), where 0 = none, 1 = mild, 2 = moderate, 3 = considerable and 4 = severe. Score different from 0 will determine presence of sensitivity. The risk of tooth sensitivity will be determined by relative risk assessed by ratio between absolute risk of experimental condition by those observed in control. The 95% confidence interval will be calculated.

The tooth sensitivity will be assessed using a Visual analogue (VAS) and verbal scales. VAS consisted of a 10-cm scale 0 (no sensitivity) 10 (unbearable sensitivity). A slightly air-stream will be applied over the buccal surfaces of the central incisors, and the patients will record their sensitivity perception by pointing with a pen on the scale. The distance between the marking and the border of scale, relative to the absence of sensitivity will be measured. The measurements will be scored according to the distance from 0, using a digital caliper.The tooth sensitivity will be evaluated using a 5-point Verbal rating scale (VRS), where 0 = none, 1 = mild, 2 = moderate, 3 = considerable and 4 = severe.

The tooth sensitivity will be assessed using a Visual analogue (VAS) and verbal scales. VAS consisted of a 10-cm scale 0 (no sensitivity) 10 (unbearable sensitivity). A slightly air-stream will be applied over the buccal surfaces of the central incisors, and the patients will record their sensitivity perception by pointing with a pen on the scale. The distance between the marking and the border of scale, relative to the absence of sensitivity will be measured. The measurements will be scored according to the distance from 0, using a digital caliper.The tooth sensitivity will be evaluated using a 5-point Verbal rating scale (VRS), where 0 = none, 1 = mild, 2 = moderate, 3 = considerable and 4 = severe. Score different from 0 will determine presence of sensitivity. The risk of tooth sensitivity will be determined by relative risk assessed by ratio between absolute risk of experimental condition by those observed in control. The 95% confidence interval will be calculated

The color evaluation will be performed using CIE L*a*b* color system, classical Vita guide and Vita bleachguide. For the CIE L*a*b* and classical vita guide, the shade will be determined using a spectrophotometer (Easy Shade Compact, Vita-Zahnfabrik, Bad Säckinge, Germany). The spectrophotometer also will inform the shade in classical Vita guide.

Universidade Federal de Sergipe

Professional application
Potassium oxalate gel

Potassium Oxalate Gel

Professional application
Potassium oxalate liquid

Potassium Oxalate Liquid

Total

Sex: Female, Male

Race/Ethnicity, Customized

Region of Enrollment

The Schiff Sensitivity Scale was assessed for each test tooth via an evaporative air challenge. The examiner recorded the Schiff Index score corresponding to the response to the air challenge. The Schiff Index Sensitivity scale is scored as follows- 0: tooth/subject did not respond to stimulus, 1: tooth/subject responds to stimulus, but does not request discontinuation of stimulus, 2: tooth/subject responds to stimulus and requests discontinuation or moves form stimulus, 3: tooth/subject responds to stimulus, considers stimulus to be painful, and requests discontinuation of the stimulus. The higher the Schiff score, the more sensitive the tooth. The mean change from Baseline was calculated for this measure.

Professional application
Potassium oxalate

Change From Baseline Air Challenge

Visual Analog Scale (VAS) - subjects are asked to look at a VAS and designate the level of hypersensitivity they experienced as a result of the thermal and water challenges using a continuum scale of 0 = No tooth pain up to 100 = Worst tooth pain ever experienced.

potassium oxalate/hypersensitivity

Clinical Evaluation of Different Potassium Oxalate Concentrations in Dentin Hypersensitivity Treatment

Potassium Oxalate and Placebo and Post-bleaching Sensitivity

Potassium Oxalate and Potassium Nitrate and Post-bleaching Sensitivity

Effectiveness of Two Water-Based Potassium Oxalate Desensitizers

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