Ozcan 2003.
| Methods | Title: the efficacy of 2 prototype chewing gums for the removal of extrinsic tooth stain Trial design: Double‐blinded, randomised controlled trail, parallel design Location: Marmra University, Istanbul, Turkey Language: English Number of centres: 1 Recruitment period: not reported Funding source: Dandy Sakiz ve Sekerleme Sanayi ve Ticaret AS, Istanbul |
| Participants | Participants: 18 to 24 years. Mean age 20.6 years Total number: 76 Inclusion criteria: healthy Individual; 12 score able anterior teeth; no orthodontic restoration Exclusion criteria: pregnant or lactating women Number randomised: 60 Method of randomisation: not reported Method of allocation concealment: not reported Method of blinding: not reported Number evaluated: not reported |
| Interventions | Total number of intervention groups: 2 Group 1: sorbitol powder, maltilol syrup, mannitol, glycerine and flavour, no active ingredients Group 2: sorbitol powder, maltilol syrup, mannitol, glycerine and flavour, sodium tripolyposphate, dicalcium phosphate and sodium bicarbonate 1:4:5 Duration of treatment: 4 weeks |
| Outcomes | Reduction of stain in teeth and gingiva Gingiva and body were scored by 4‐point intensity scale ranging from no stain (0) to heavy stain (3) and a 4‐point area scale ranging from no stain (0) to stain covering greater than 2/3 of region (3) |
| Notes | Sample size calculation: not reported Adverse effects: reported Health‐related quality of life: reported Key conclusions of the study authors: "The overall difference between the stain scores after 4‐weeks' use of the chewing gums was statistically significant for both test Product A (without active ingredient) and Product B (with active ingredient) with regard to the mean baseline stain scores. This difference represented a 48% reduction in stain scores for those subjects using Product A, while the reduction was 64% for the subjects using Product B" Correspondence required: yes: missing data. Authors have been contacted Contact: Assistant Professor Dr Mutlu Ozcan, University of Groningen, Faculty of Medical Sciences, Oral Health Institute, Antonius Deusinglaan 1, 971 3 AV, Groningen, The Netherlands; mutluozcan@hotmail.com |