Toothpaste showdown: can it stop the zing?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Healthy female and male participants (no specific gender distributions required) * Aged 18 years or older * Participants presenting dental hyperesthesia with at least two hypersensitive teeth with a verbal rating scale (VRS) score greater than or equal to 1 after tactile stimulation, and a Schiff Cold Air Sensitivity Scale score greater than or equal to 1 at the initial visit (T0). * Participants certifying the truthfulness of the personal data disclosed to the investigator. * Participants able to understand the language used at the investigation centre and comprehend the information provided by the investigator. * Participants able to follow the instructions provided by the investigator and comply with the study requirements and restrictions. * Pharmacological therapy (except for therapies listed under non-inclusion criteria) must have been stable for at least one month, with no changes expected or planned during the study * Commitment by the participants not to change the daily routine or lifestyle during the study. * Participants who have not taken part in any other similar clinical study in the previous six months. * Commitment by the participant not to use other oral hygiene products containing fluoride or ingredients such as hydroxyapatite during the study period. Exclusion Criteria: * Participants currently participating or planning to participate in other clinical trials. * Participants deprived of liberty by administrative or judicial decision or under guardianship. * Participants who cannot be contacted in the event of an emergency. * Participants admitted to a healthcare or social institution. * Participants planning hospitalization during the study period. * Participants who have taken part in a similar study without respecting an adequate washout period (defined as the use of desensitizing agents within the last six months). * Participants under pharmacological treatments that modify the evaluation of dental sensitivity or are incompatible with the requirements of the study. * Participants with a history of active caries within the past 12 months or at risk for developing caries (e.g., multiple dental restorations, crowns with compromised margins) per examiners discretion. * Participants with known allergies or sensitivities to any components of the investigational product. * Women who are breastfeeding, pregnant, or unwilling to take the adequate contraceptive measures to avoid pregnancy during the study (for women of childbearing potential). * Participants with acute, chronic, or progressive pathologies (including diabetes, cardiovascular and metabolic conditions) incompatible with the study requirements. * Any tooth surface adjacent to those surfaces under investigation that in the opinion of the investigator have any other condition that produce symptoms confounding the evaluation of cervical dentin hypersensitivity. * Participants with a medical history or taking medication, or wearing physical items (e.g., orthodontic braces) that could interfere with the study. * Participants with a history of illegal drug use.