About this trial
The objective of this clinical trial is to compare the effect that the intake of beverages without sweeteners, added with non-caloric sweeteners (stevioside) and caloric sweeteners (sucrose) on oral pH and dental biofilm microbiome in Mexican adolescents.
Participants will drink on different occasions a beverage without sweetener, a beverage added with stevioside or a beverage added with sucrose. The researchers will compare the changes that each one causes in salivary pH, dental biofilm pH, dental biofilm bacterial proliferation and dental biofilm microbiome.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Habitual consumption of soft drinks
Decayed, Missing, and Filled Teeth (DMF) index of at least 3 (considering as caries those lesions that are visible without the tooth needing to be dry)
Agree to participate in the study and sign informed consent
Parents sign informed consent
Disqualifiers
Orthodontic treatment
Topical application of fluoride during the last 3 months
Having a motor disability that interfered with tooth brushing
Xerostomia
Trial design
Crossover
Treatments tested in this trial
Stevioside
Drug250 ml of natural water added with 0.1 gr. of stevioside should be drunk * Salivary pH will be analyzed at 0,5,10,15,30,45 and 60 minutes later * Dental biofilm pH will be analyzed at 0,5,10,15,30,45 and 60 minutes later * Streptococcus mutans and Strepcotoccus sobrinus proliferation in dental biofilm ( PCR copies) will be analyzed at 0 and 120 minutes later * The relative abundance of Streptococcus mutans and Streptococcus sobrinus in dental biofilm will be analyzed using Amplicon Sequence Variant at 0 and 120 minutes later
Sucrose
Drug250 ml of natural water added with 25 gr of sucrose should be drunk * Salivary pH will be analyzed at 0,5,10,15,30,45 and 60 minutes later * Dental biofilm pH will be analyzed at 0,5,10,15,30,45 and 60 minutes later * Streptococcus mutans and Strepcotoccus sobrinus proliferation in dental biofilm ( PCR copies) will be analyzed at 0 and 120 minutes later * The relative abundance of Streptococcus mutans and Streptococcus sobrinus in dental biofilm will be analyzed using Amplicon Sequence Variant at 0 and 120 minutes later
Natural water
Other intervention250 ml of natural water should be drunk * Salivary pH will be analyzed at 0,5,10,15,30,45 and 60 minutes later * Dental biofilm pH will be analyzed at 0,5,10,15,30,45 and 60 minutes later * Streptococcus mutans and Strepcotoccus sobrinus proliferation in dental biofilm ( PCR copies) will be analyzed at 0 and 120 minutes later * The relative abundance of Streptococcus mutans and Streptococcus sobrinus in dental biofilm will be analyzed using Amplicon Sequence Variant at 0 and 120 minutes later
Treatment groups
Trial outcomes
Primary outcomes
Mean salivary pH with natural water
Logarithm of hydrogen ion concentration
Mean salivary pH with natural water
Logarithm of hydrogen ion concentration
Mean salivary pH with natural water
Logarithm of hydrogen ion concentration
Mean salivary pH with natural water
Logarithm of hydrogen ion concentration
Secondary outcomes
Mean dental biofilm pH with natural water
Logarithm of hydrogen ion concentration
Mean dental biofilm pH with natural water
Logarithm of hydrogen ion concentration
Mean dental biofilm pH with natural water
Logarithm of hydrogen ion concentration
Mean dental biofilm pH with natural water
Logarithm of hydrogen ion concentration
Other outcomes
Dental biofilm proliferation with natural water
S. mutans and S. sobrinus number of copies
Dental biofilm proliferation with natural water
S. mutans and S. sobrinus number of copies
Dental biofilm proliferation with natural water added with 25 gr of sucrose
S. mutans and S. sobrinus number of copies
Dental biofilm proliferation with natural water added with 25 gr of sucrose
S. mutans and S. sobrinus number of copies
Sponsors and contacts
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