A Study in Dentinal Hypersensitivity (DH) Participants to Assess the Efficacy of an Occluding Dentifrice.
26 luglio 2018 aggiornato da: GlaxoSmithKline
A Clinical Study Investigating the Efficacy of Two Experimental Oral Rinses in Providing Long Term Relief From Dentinal Hypersensitivity
This study will investigate the longitudinal efficacy of two experimental oral rinses, one containing 1.5% weight/weight (w/w) dipotassium oxalate monohydride (KOX) /0 Parts per Million (ppm fluoride) and the other 2.0% w/w KOX /45ppm fluoride, for the relief of dentinal hypersensitivity (DH), compared to a placebo oral rinse, when used as an adjunct to twice daily brushing with a standard fluoride toothpaste.
Panoramica dello studio
Stato
Completato
Condizioni
Tipo di studio
Interventistico
Iscrizione (Effettivo)
240
Fase
- Non applicabile
Contatti e Sedi
Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.
Luoghi di studio
-
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Indiana
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Fort Wayne, Indiana, Stati Uniti, 46825
- GSK Investigational Site
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Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Età idonea allo studio
Da 18 anni a 55 anni (Adulto)
Accetta volontari sani
Sì
Sessi ammissibili allo studio
Tutto
Descrizione
Inclusion Criteria:
- Participants in good general health with no clinically significant/ relevant abnormalities in medical history or upon oral examination
- Pre-existing self reported and clinically diagnosed tooth sensitivity
- At screening a minimum of 20 natural teeth and at least two accessible, non-adjacent teeth (incisors, canines or pre-molars) preferably in different quadrants with a signs of facial/cervical gingival recession and/or signs of erosion or abrasion (EAR),tooth with modified gingival index (MGI) score =0 adjacent to the test area (exposed dentine) only and a clinical mobility of ≤1 and tooth with signs of sensitivity measured by qualifying evaporative air assessment (Y/N response).
- At baseline, a minimum of 2 non-adjacent accessible teeth (incisors, canines or premolars) with DH (qualifying tactile threshold Yeaple ≤ 20g, Schiff Sensitivity Score ≥ 2)
Exclusion Criteria:
- Participants with a known or suspected intolerance or hypersensitivity to study products
- Presence of chronic debilitating disease which could affect study outcomes
- Any condition which is causing dry mouth
- Use of an oral care product indicated for the relief of dentine hypersensitivity
- Participation in a DH treatment study in the 8 weeks prior to screening
- Taking daily doses of a medication/ treatment which could interfere with perception of pain or is causing dry mouth
- Require antibiotic prophylaxis for dental procedures
- Dental prophylaxis within 4 weeks of screening
- Treatment of periodontal disease within 12 months of screening
- Scaling or root planning within 3 months of screening
- Tooth bleaching within 8 weeks of screening
- Active caries or periodontitis
- Partial dentures, orthodontic appliances or dental implants which could affect study outcomes
- Pregnant and breast-feeding females
- Main Exclusions for Test Teeth: evidence of current or recent caries; treatment of decay within 12 months of screening; teeth with exposed dentine but with deep, defective or facial restorations; teeth used as abutments for fixed or removable partial dentures; teeth with full crowns or veneers, orthodontic bands or cracked enamel; sensitive teeth with contributing aetiologies other than erosion, abrasion or recession
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Experimental Oral Rinse 2
Brushing with fluoride toothpaste for 1 minute followed by rinsing with 10 ml of Experimental Oral Rinse 2 for 1 minute.
This regimen will be performed twice daily for 8 weeks.
|
Oral rinse containing 1000ppm fluoride as sodium monofluorophosphate
Oral rinse containing 2.0% w/w KOX, 45ppm F, pH 4.5
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Comparatore placebo: Placebo Oral Rinse
Brushing with fluoride toothpaste for 1 minute followed by rinsing with 10 ml of Placebo Oral Rinse 2 for 1 minute.
This regimen will be performed twice daily for 8 weeks.
|
Oral rinse containing 1000ppm fluoride as sodium monofluorophosphate
Oral rinse containing 0% w/w KOX 0ppm F, pH 4.5
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Sperimentale: Experimental Oral Rinse 1
Brushing with fluoride toothpaste for 1 minute followed by rinsing with 10 ml of Experimental Oral Rinse 1 for 1 minute.
This regimen will be performed twice daily for 8 weeks.
|
Oral rinse containing 1.5% w/w KOX, 0ppm F, pH 4.5
Oral rinse containing 1000ppm fluoride as sodium monofluorophosphate
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Change From Baseline in Schiff Sensitivity Score of Experimental Oral Rinses 1 and 2 Against a Placebo Oral Rinse at Week 8
Lasso di tempo: Baseline, Week 8
|
The examiner assessed the participant's response to an evaporative air stimulus for each selected two teeth using the Schiff Sensitivity Scale scored as follows - 0: Participant does not respond to air stimulation; 1: responds to air stimulus but does not request discontinuation of stimulus; 2: Participant responds to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responds to stimulus, considers stimulus to be painful, and requests discontinuation of the stimulus.
A reduction in Schiff Sensitivity score indicate improvement in sensitivity.
|
Baseline, Week 8
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Change From Baseline in VRS of Two Experimental Oral Rinses 1 and 2 and a Placebo Oral Rinse) at Week 8
Lasso di tempo: Baseline, Week 8
|
Participants rated the intensity of their response to the evaporative (air) stimulus using a 10 point VRS.
The Participants were asked to rate their pain on a scale of 1 ("No Pain") to 10 ("Intense Pain").
A reduction in the score is indicative of an improvement in sensitivity.
|
Baseline, Week 8
|
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Change From Baseline in Schiff Sensitivity Score of Two Experimental Oral Rinses 1 and 2 at Week 8
Lasso di tempo: Baseline, Week 8
|
The examiner assessed the participant's response to an evaporative air stimulus for each selected two teeth using the Schiff Sensitivity Scale scored as follows - 0: Participant does not respond to air stimulation; 1: responds to air stimulus but does not request discontinuation of stimulus; 2: Participant responds to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responds to stimulus, considers stimulus to be painful, and requests discontinuation of the stimulus.
A reduction in Schiff Sensitivity score indicate improvement in sensitivity.
|
Baseline, Week 8
|
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Change From Baseline in Schiff Sensitivity Score of Two Experimental Oral Rinses 1 and 2 and a Placebo Oral Rinse at Week 4
Lasso di tempo: Baseline, Week 4
|
The examiner assessed the participant's response to an evaporative air stimulus for each selected two teeth using the Schiff Sensitivity Scale scored as follows - 0: Participant does not respond to air stimulation; 1: responds to air stimulus but does not request discontinuation of stimulus; 2: Participant responds to air stimulus and requests discontinuation or moves from stimulus; 3: Participant responds to stimulus, considers stimulus to be painful, and requests discontinuation of the stimulus.
A reduction in Schiff Sensitivity score indicate improvement in sensitivity.
|
Baseline, Week 4
|
|
Change From Baseline in Tactile Threshold (Gram [g]) of Two Experimental Oral Rinses 1, 2 and a Placebo Oral Rinse at Week 4
Lasso di tempo: Baseline, Week 4
|
The examiner assessed the response to tactile sensitivity using a Yeaple probe which allowed application of a known force to the dentin surface, starting at 10g and rising in increments of 10g until the tactile threshold or maximum force has reached.
The tactile threshold for each tooth was determined by asking the participant whether the sensation caused discomfort.
The pressure setting at which the participant gave two consecutive 'yes' responses was recorded as the tactile threshold.
The higher the tactile threshold, the less sensitive the tooth.
At baseline, the maximum force used was 20g; at all subsequent visits, it was 80g.
However, in situations where participants did not give a 'yes' response at force of 80g, the tactile threshold was recorded as >80g.
For analysis purposes values recorded as >80g were treated as 90g values.
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Baseline, Week 4
|
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Change From Baseline in Tactile Threshold (g) of Two Experimental Oral Rinses 1, 2 and a Placebo Oral Rinse at Week 8
Lasso di tempo: Baseline, Week 8
|
The examiner assessed the response to tactile sensitivity using a Yeaple probe which allowed application of a known force to the dentin surface, starting at 10g and rising in increments of 10g until the tactile threshold or maximum force has reached.
The tactile threshold for each tooth was determined by asking the participant whether the sensation caused discomfort.
The pressure setting at which the participant gave two consecutive 'yes' responses was recorded as the tactile threshold.
The higher the tactile threshold, the less sensitive the tooth.
At baseline, the maximum force used was 20g; at all subsequent visits, it was 80g.
However, in situations where participants did not give a 'yes' response at force of 80g, the tactile threshold was recorded as >80g.
For analysis purposes values recorded as >80g were treated as 90g values.
|
Baseline, Week 8
|
|
Change From Baseline in Visual Rating Scale (VRS) of Two Experimental Oral Rinses 1, 2 and a Placebo Oral Rinse at Week 4
Lasso di tempo: Baseline, Week 4
|
Participants rated the intensity of their response to the evaporative (air) stimulus using a 10 point VRS.
The Participants were asked to rate their pain on a scale of 1 (No Pain) to 10 (intense Pain).
A reduction in the score is indicative of an improvement in sensitivity.
|
Baseline, Week 4
|
Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Sponsor
Studiare le date dei record
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Studia le date principali
Inizio studio
8 settembre 2015
Completamento primario (Effettivo)
1 dicembre 2015
Completamento dello studio (Effettivo)
18 dicembre 2015
Date di iscrizione allo studio
Primo inviato
25 aprile 2016
Primo inviato che soddisfa i criteri di controllo qualità
25 aprile 2016
Primo Inserito (Stima)
27 aprile 2016
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
27 agosto 2018
Ultimo aggiornamento inviato che soddisfa i criteri QC
26 luglio 2018
Ultimo verificato
1 luglio 2018
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 204773
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .