Hypersensitivity
Conditions
Brief summary
To evaluate the clinical efficacy of a Dual Zinc Toothpast containing 5% small particle size silica (AC43) as compared to Colgate MaxFresh Tea Toothpaste on dentin hypersensitivity reduction after brushing two times daily (morning and evening) for a period of 8 weeks
Interventions
DRUGTest toothpaste
A commercially available fluoride toothpaste
A commercially available fluoride toothpaste
Sponsors
Colgate Palmolive
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
* Male and female subjects, ages 18-70, inclusive. * Availability for the eight-week duration of the study. * Two sensitive teeth, which must be anterior to the molars, and demonstrate cervical erosion/abrasion or gingival recession. * Qualifying response to tactile stimuli (Yeaple probe) as defined by a score between 10-50 gms. of force. * Qualifying response to the air blast stimuli as defined by a score of 2 or 3 on the Schiff Cold Air Sensitivity Scale. * Subjects need to satisfy the qualifying response to stimuli for both the parameters assessed (tactile or air) on two teeth to be entered into the study. * Good general health with no known allergies to products being tested. * Use of a non-desensitizing dentifrice for three months prior to entry into the study. * Signed Informed Consent Form.
Exclusion criteria
* Gross oral pathology, chronic disease, or history of allergy to test products. * Advanced periodontal disease or treatment for periodontal disease (including surgery) within the past twelve months. * Sensitive teeth with a mobility greater than one. * Teeth with extensive/defective restorations (including prosthetic crowns), suspected pulpitis, caries, cracked enamel, or used as abutments for removable partial dentures. * Current use of anticonvulsants, antihistamines, antidepressants, sedatives, tranquilizers, anti-inflammatory drugs, or daily use of analgesics. * Participation in a desensitizing dentifrice study or regular use of a desensitizing dentifrice within the past three months. * Current participation in any other clinical study. * Pregnant or lactating subjects. * Allergies to oral care products, personal care consumer products, or their ingredients. * Medical condition which prohibits not eating/drinking for 4 hours.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| tactile sensitivity | baseline and 8 week measurement | tactile stimulation is measured by the Yeaple Electronic Force Sensing Probe |
| air blast sensitivity | baseline and 8 week measurement | air blast sensitivity is delivered by a standard dental unit syringe at a measured temperature of 19-21°C (70°F \[± 3°F\]) \[sensitivity will be defined by a score of 2 or 3 on the Schiff Cold Air sensitivity scale Air Sensitivity Scale |
Countries
China
Outcome results
None listed