The Effect of Chlorhexidine on the Oral Microbiome and Saliva in Dental Erosion

Dental erosion happens when the teeth lose some of their parts because of acid from the things people eat and/or drink or even from stomach. It can make teeth hurt and become sensitive. The mouth has a protective shield called salivary pellicle that helps, and there are some special bacteria called Nitrate-reducing bacteria (NRB) that can be good for the mouth and heart. Eating some fruits and vegetables or drinking beetroot can make these bacteria thrive, which might help the heart and blood pressure. This study wants to see how administering chlorhexidine mouthwash affects the good bacteria in the mouth for people with healthy teeth and those with erosion. This study aims to find out if this mouthwash can change the saliva and bacteria in the mouth for the better, in people with both healthy teeth and those with dental erosion. The proposed study is part of a PhD educational project and will be a double blind, randomised design, crossover trial for the effect of Chlorhexidine (CHX) mouthwash on healthy control and people with dental erosion (PwDE). This study aims to explore mouthwash's effect on oral microbiome recovery in WMS and salivary pellicle and its impact on blood pressure and arterial stiffness in healthy controls PwDE