Clinical Efficacy of a Toothpaste on Hypersensitivity Reduction (Yeaple)

Tooth sensitivity reduction after dentifrices use

Study Overview

• Status: Completed
• Conditions: Hypersensitivity
• Intervention / Treatment: Device: Mint Prophy paste - Fluoride free; Device: Arginine/Calcium Carbonate

• Study Type: Interventional
• Enrollment (Actual): 79
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • San Francisco, California, United States, 94115
      • Jacobsen Dental Clinic

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 70 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Male and female subjects, ages 18-70, inclusive.
• Availability for the three month 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 10-50gms. 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 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.
• Subjects that began to take anticonvulsants, antihistamines, antidepressants, sedatives, tranquilizers, anti-inflammatory drugs, or daily analgesics within one month prior to the start of the study or who have to start taking these during the course of the study.
• 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.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Nupro C Prophylaxis paste; Fluoride Free	Device: Mint Prophy paste - Fluoride free; one application; Other Names: Nupro C Prophylaxis paste - Fluoride free
Experimental: ProClude Prophylaxis paste; Arginine	Device: Arginine/Calcium Carbonate; One application

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Tooth Hypersensitity to Touch Stimuli (Tactile)	Units on a scale:Measured with an electronic force sensing probe(Yeaple Probe):10, 20, 30, 40,up to 50 grams of force are applied to hypersensitive tooth until pain is felt. This calibrated instrument measures grams of force applied to each tooth before pain is felt. This data is recorded as the hypersensitivity score. The lower the score, the higher the hypersensitivity.Changes in this score to potentially painful stimulus are determined based on how many grams of force can be applied before the subject reports feeling pain. Grams of force is therefore the unit measurement for sensitivity	12 weeks (Final)
Tooth Hypersensivity Stimuli to Air	Units on a scale using Schiff Cold Air Sensitivity Scale. Response to a constant (duration, pressure, temperature, distance from target) jet of air applied to a hypersensitive tooth. According to this analog scale hypersensitivity scores for the stimulated tooth is 0, 1, 2 or 3(The lower the score, the lower the hypersensitivity). 0=No subject response to stimulus, 1=responds but will continue, 2=responds and moves or requests discontinuation, 3=Painful response to stimulus, discontinuation requested.	12 weeks (Final)

Collaborators and Investigators

• Sponsor: Colgate Palmolive
• Investigators: Principal Investigator: Thomas Schiff, DMD

Study record dates

Study Major Dates

• Study Start: May 1, 2008
• Primary Completion (Actual): August 1, 2008
• Study Completion (Actual): August 1, 2008

Study Registration Dates

• First Submitted: September 27, 2008
• First Submitted That Met QC Criteria: November 19, 2009
• First Posted (Estimate): December 29, 2009

Study Record Updates

• Last Update Posted (Estimate): December 10, 2013
• Last Update Submitted That Met QC Criteria: November 15, 2013
• Last Verified: November 1, 2013

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Immune System Diseases; Hypersensitivity; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Gastrointestinal Agents; Protective Agents; Calcium-Regulating Hormones and Agents; Cariostatic Agents; Antacids; Calcium; Fluorides; Calcium Carbonate
• Other Study ID Numbers: CRO-0308-SF-PROC-SEN-ED