Tier 2 — strong

Effects of a betaine-containing toothpaste on subjective symptoms of dry mouth: a randomized clinical trial

Irma Rantanen, Jorma Tenovuo, Kaisu Pienihäkkinen, Eva Söderling
The journal of contemporary dental practice 2003 4(2):11-23

Bibliography

PubMed
PMID 12761586
Funding
Funding was not specified in the indexed record or accessible funding metadata.
Competing interests
A competing-interest declaration was not available in the indexed record or accessible disclosure metadata.

Study snapshot

DesignRandomized crossover controlled trial
ModelHuman participants
Sample27 xerostomic patients and 18 healthy controls
InterventionToothpastes with or without 4% betaine and sodium lauryl sulfate
Duration6 weeks per toothpaste
EndpointsDry-mouth symptoms; Tolerability

What the study showed, in plain terms

Published in 2003, this source examined betaine hcl and topical formulations. Design: Randomized crossover controlled trial. Sample/model: 27 xerostomic patients and 18 healthy controls. The exposure or intervention was Toothpastes with or without 4% betaine and sodium lauryl sulfate. Follow-up or treatment period: 6 weeks per toothpaste.

The detergent-free betaine toothpaste relieved some dry-mouth symptoms more often than several comparators.

Formulation differences complicate attribution to betaine; local toothpaste effects do not establish systemic supplement benefit.

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Key findings

  • The detergent-free betaine toothpaste relieved some dry-mouth symptoms more often than several comparators.
  • The recorded outcome domains were Dry-mouth symptoms; Tolerability.
  • The result applies to the tested exposure: Toothpastes with or without 4% betaine and sodium lauryl sulfate; 6 weeks per toothpaste.

What this study can and cannot tell us

  • Formulation differences complicate attribution to betaine; local toothpaste effects do not establish systemic supplement benefit.
  • An individual controlled trial must be interpreted alongside its comparator, sample size, endpoint selection and independent replication. It does not validate a different commercial formulation or a general longevity claim.
  • Source basis: Indexed abstract and bibliographic data. Missing method details, funding information or participant denominators are not inferred.

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Dr. Khaled Mahmoud, MBBChCritical Care Medicine, Longevity Science & Editorial Direction Dr. Amr Yasser, PhDCardiometabolic, Musculoskeletal, Gut & Bioavailability Dr. Abdulla Mostafa, PhDCellular Senescence, Neurological, Mitochondrial & Brain-Ageing Biology