The aim of this randomized clinical trial is to evaluate the effect of pH and fluoride concentration in liquid dentifrices in the control of dental caries in early childhood, in non-fluoridated area. This study also aims to assess the effect of the consistency of liquid dentifrices in the fluoride uptake in the plaque and the fluoride concentration in the toenails, to estimate the fluoride intake from these formulations.
The study was carried out with schoolchildren living in a non-fluoridated area, with (A) or without (I) active caries lesions, were randomly allocated into 3 groups according to the LD used over 12 months: Group 1 (n=39-A/38-I): 550µgF/g-pH4.5, Group 2 (n=33-A/35-I) 1100µgF/g-pH7.0, Group 3 (n=33-A/34-I): 550µgF/g-pH7.0.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
212
550 ppm (mg/L) of sodium fluoride in pH 4,5; 12 months , 3 times a day.
1100 ppm (mg/L) of sodium fluoride, pH 7 , 3 times a day for 12 months
500 ppm sodium fluoride, pH 7 , 3 times a day for 12 months
Paraíba Federal University
João Pessoa, Paraíba, Brazil
Evaluation of the concentration of fluoride incorporated into the biofilm and nails 6 months after initiation of dentifrices use in non-fluoridated communities
Samples of plaque and nails were analysed for fluoride using an ion-specific electrode after diffuusion with hexamethyldisiloxane-facilitated (HMDS)
Time frame: 6 months
New caries diagnostic criteria: caries progression/regression in caries-active children and caries progression in caries-inactive children after 12 months according to the type of dentifrice used in non-fluoridated communities
The caries progression/regression of active noncavited and progression of inactive noncavitated was evaluated by the date from the examinations at baseline and after 12 months using Nyvad, Machiulskienec, Baelum,1999: Score 0: Sound/ Score 1: Active caries (intact surface)/Score 2: Active caries (surface discontinuity)/Score 3: Active caries (cavity)/Score 4: Inactive caries(intact surface) /Score 5: Inactive caries (surface discontinuity) /Score 6: Inactive caries(cavity)/Score 7: Filling (sound surface)/Score 8: Filling + active caries/Score 9: Filling + inactive caries
Time frame: 12 months
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