Aim: Dentin hypersensitivity (DH) is a health condition with variable prevalence rates, affecting a large portion of the population, especially young adults. This study aimed to verify the level of knowledge on the subject both of dentistry professionals and students and the general population. Methodology: An exploratory-descriptive study with quantitative analysis was carried out using a digital form released via social media to be filled in by the Google Forms tool. Four dimensions were evaluated regarding general characteristics and the presence of DH, as well as specific characteristics related to the group (dentists/dental students or general population). Results: The form was answered by 212 participants. Of these, 69% of the lay population claimed to frequently consume acidic foods and drinks, 35% claimed to have sensitive teeth and 30% self-indicated products for the treatment of DH. In relation to the group linked to dentistry, 46% did not know the difference between agents with obliterating and neural action; and 51% did not know the Hydrodynamic Theory. Conclusion: the population linked to dentistry showed a lack of knowledge about DH. The lay population, on the other hand, showed a superficial knowledge of DH, but with information acquired from informal sources.

Toxic stress is defined as strong, repetitive stress with prolonged activation, without the child having the support of an adult caregiver. It is plausible that invasive and complex paediatric interventions produce or contribute to the development of toxic stress. This article aims to evaluate, discuss and synthesize the association between toxic stress and paediatric dental clinical practice through an integrative review of studies published in several databases. The results of this study allow us to state that this subject is little explored in the dental literature and, therefore, that it is essential to encourage clinical studies and specific research. The expansion of these studies will provide health professionals with scientific evidence regarding the implementation of proper clinical practice, thus reducing or even eliminating the development of toxic stress.