The aim of this 24-week clinical study is to evaluate the ability of an experimental dentifrice containing 0.454 percent (%) weight by weight (w/w) Stannous fluoride (SnF2); to improve gingival health, plaque reduction and prevention of plaque accumulation compared with a regular fluoride dentifrice (negative control) in participants with mild to moderate gingivitis.
This will be a single-center, 24-week, randomized, controlled, single blind (examiner only), 3-treatment arms, parallel group, stratified study, to evaluate the efficacy of using an experimental dentifrice containing 0.454% w/w Stannous fluoride, twice daily in reducing gingivitis and plaque accumulation in a population with clinically measurable level of gingivitis. The clinical efficacy of the experimental dentifrice will be compared to a commercially available regular fluoride dentifrice as negative control. In addition, a marketed dentifrice containing 0.454% w/w SnF2 is included as positive control to provide a well-established benchmark. Approximately 300 participants (approximately 100 per group) will be randomized to ensure approximately 270 evaluable participants (approximately 90 per group) complete the study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
300
Experimental dentifrice containing 0.454% w/w SnF2.
Marketed dentifrice containing 0.454% w/w SnF2.
Marketed regular fluoride dentifrice.
Salus Research, Inc.
Fort Wayne, Indiana, United States
RECRUITINGNumber of Bleeding Sites (Overall) at Week 24
Number of bleeding sites will be assessed using the bleeding index (BI) assessment. BI will be assessed for all evaluable surfaces of the facial and lingual/palatal gingiva, six sites per tooth. The probe will be inserted approximately 1 millimeter (mm) into the gingival sulcus and moved around the tooth from the distal interproximal area to the mesial interproximal area, gently stretching the gingival epithelium. The number of bleeding sites for each participant will be calculated as the number of tooth sites with bleeding observed immediately on probing or within 30 seconds of probing.
Time frame: Week 24
Number of Bleeding Sites (Overall) at Weeks 1, 4 and 12
Number of bleeding sites will be assessed using the BI assessment. BI will be assessed for all evaluable surfaces of the facial and lingual/palatal gingiva, six sites per tooth. The probe will be inserted approximately 1 mm into the gingival sulcus and moved around the tooth from the distal interproximal area to the mesial interproximal area, gently stretching the gingival epithelium. The number of bleeding sites for each participant will be calculated as the number of tooth sites with bleeding observed immediately on probing or within 30 seconds of probing.
Time frame: Weeks 1, 4 and 12
Number of Bleeding Sites (Interproximal) at Weeks 1, 4 and 12
Number of bleeding sites will be assessed using the BI assessment. BI will be assessed for all evaluable surfaces of the facial and lingual/palatal gingiva, six sites per tooth. The probe will be inserted approximately 1 mm into the gingival sulcus and moved around the tooth from the distal interproximal area to the mesial interproximal area, gently stretching the gingival epithelium. The number of bleeding sites for each participant will be calculated as the number of tooth sites with bleeding observed immediately on probing or within 30 seconds of probing.
Time frame: Weeks 1, 4 and 12
Number of Bleeding Sites (Interproximal) at Week 24
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Number of bleeding sites will be assessed using the BI assessment. BI will be assessed for all evaluable surfaces of the facial and lingual/palatal gingiva, six sites per tooth. The probe will be inserted approximately 1 mm into the gingival sulcus and moved around the tooth from the distal interproximal area to the mesial interproximal area, gently stretching the gingival epithelium. The number of bleeding sites for each participant will be calculated as the number of tooth sites with bleeding observed immediately on probing or within 30 seconds of probing.
Time frame: Week 24
Mean BI (Overall) at Weeks 1, 4, 12 and 24
The BI is an invasive assessment of gingival bleeding. BI will be assessed for all evaluable surfaces of the facial and lingual/palatal gingiva, six sites per tooth. The probe will be inserted approximately 1 mm into the gingival sulcus and moved around the tooth from the distal interproximal area to the mesial interproximal area, gently stretching the gingival epithelium. Gingival bleeding will be scored on a 3-points scale with scores ranging from 0 to 2, where 0=Absence of bleeding on probing, 1=Bleeding observed within 30 seconds of probing, 2=Bleeding observed immediately on probing. Mean BI will be calculated by taking the average over all tooth sites assessed for a participant. Lower score indicates improvement in the symptoms.
Time frame: Weeks 1, 4, 12 and 24
Mean BI (Interproximal) at Weeks 1, 4, 12 and 24
The BI is an invasive assessment of gingival bleeding. BI will be assessed for all evaluable surfaces of the facial and lingual/palatal gingiva, six sites per tooth. The probe will be inserted approximately 1 mm into the gingival sulcus and moved around the tooth from the distal interproximal area to the mesial interproximal area, gently stretching the gingival epithelium. Gingival bleeding will be scored on a 3-points scale with scores ranging from 0 to 2, where 0=Absence of bleeding on probing, 1=Bleeding observed within 30 seconds of probing, 2=Bleeding observed immediately on probing. Mean BI will be calculated by taking the average over all tooth sites assessed for a participant. Lower score indicates improvement in the symptoms.
Time frame: Weeks 1, 4, 12 and 24
Mean Modified Gingival Index (MGI) (Overall) at Weeks 1, 4, 12 and 24
The MGI assessment is a non-invasive evaluation which focuses on the visual symptoms of gingivitis (for example, redness, texture, edema). The MGI will be assessed on the buccal and lingual marginal gingiva and interdental papillae of all scorable teeth. Three scores will be recorded buccally/labially and three scores lingually/palatally using a 5-point scale ranging from 0 to 4, where 0 = Absence of inflammation, 1= Mild inflammation: slight change in color, little change in texture of any portion of the marginal or papillary gingival unit, 2=Mild inflammation: criteria as \[1\] but involving the entire marginal or papillary gingival unit, 3=Moderate inflammation: glazing, redness, edema, and/or hypertrophy of the marginal or papillary gingival unit, 4=Severe inflammation: marked redness, edema and/or hypertrophy of the marginal or papillary gingival unit, spontaneous bleeding, congestion, or ulceration. Lower score indicates improvement in the symptoms.
Time frame: Weeks 1, 4, 12 and 24
Mean MGI (Interproximal) at Weeks 1, 4, 12 and 24
The MGI assessment is a non-invasive evaluation which focuses on the visual symptoms of gingivitis (for example, redness, texture, edema). The MGI will be assessed on the buccal and lingual marginal gingiva and interdental papillae of all scorable teeth. Three scores will be recorded buccally/labially and three scores lingually/palatally using a 5-point scale ranging from 0 to 4, where 0 = Absence of inflammation, 1= Mild inflammation: slight change in color, little change in texture of any portion of the marginal or papillary gingival unit, 2=Mild inflammation: criteria as \[1\] but involving the entire marginal or papillary gingival unit, 3=Moderate inflammation: glazing, redness, edema, and/or hypertrophy of the marginal or papillary gingival unit, 4=Severe inflammation: marked redness, edema and/or hypertrophy of the marginal or papillary gingival unit, spontaneous bleeding, congestion, or ulceration. Lower score indicates improvement in the symptoms.
Time frame: Weeks 1, 4, 12 and 24
Mean Turesky Plaque Index (TPI) (Overall) at Weeks 1, 4, 12 and 24
TPI will be used to assess plaque on all gradable teeth. The plaque will first be disclosed using a plaque disclosing dye solution. The TPI will be assessed on the facial and lingual surfaces of each scorable tooth. Three scores will be recorded buccally/labially and three scores lingually/palatally. Disclosed plaque will be scored on a scale ranging from 0-6, where 0=No plaque, 1=Separate flecks of plaque at the cervical margin, 2=Thin continuous band of plaque (up to 1 mm) at the cervical margin, 3=Band of plaque wider than 1 mm but covering less than (\<)1/3 of the tooth surface, 4=Plaque covering greater than or equal to (\>=)1/3 but \<2/3 of the tooth surface, 5=Plaque covering \>=2/3 of the tooth surface. Lower score indicates improvement in the symptoms.
Time frame: Weeks 1, 4, 12 and 24
Mean TPI (Interproximal) at Weeks 1, 4, 12 and 24
TPI will be used to assess plaque on all gradable teeth. The plaque will first be disclosed using a plaque disclosing dye solution. The TPI will be assessed on the facial and lingual surfaces of each scorable tooth. Three scores will be recorded buccally/labially and three scores lingually/palatally. Disclosed plaque will be scored on a scale ranging from 0-6, where 0=No plaque, 1=Separate flecks of plaque at the cervical margin, 2=Thin continuous band of plaque (up to 1 mm) at the cervical margin, 3=Band of plaque wider than 1 mm but covering \<1/3 of the tooth surface, 4=Plaque covering \>=1/3 but \<2/3 of the tooth surface, 5=Plaque covering \>=2/3 of the tooth surface. Lower score indicates improvement in the symptoms.
Time frame: Weeks 1, 4, 12 and 24
Change in Mean TPI From Pre to Post Single Brush at Baseline
TPI will be used to assess plaque on all gradable teeth. The plaque will first be disclosed using a plaque disclosing dye solution. The TPI will be assessed on the facial and lingual surfaces of each scorable tooth. Three scores will be recorded buccally/labially and three scores lingually/palatally. Disclosed plaque will be scored on a scale ranging from 0-6, where 0=No plaque, 1=Separate flecks of plaque at the cervical margin, 2=Thin continuous band of plaque (up to 1 mm) at the cervical margin, 3=Band of plaque wider than 1 mm but covering \<1/3 of the tooth surface, 4=Plaque covering \>=1/3 but \<2/3 of the tooth surface, 5=Plaque covering \>=2/3 of the tooth surface. Lower score indicates improvement in the symptoms. Change in TPI will be calculated by subtracting pre brushing TPI score from post brushing TPI score at Baseline.
Time frame: Pre to Post Brushing at Baseline