The Susceptibility to Dental Erosion Differs among Individuals

Abstract

Studies of wine tasters and patients with self-induced vomiting have revealed that 30-50% of individuals at high risk do not develop erosive lesions. The aim was to investigate this apparent individual susceptibility to enamel erosion. Two enamel specimens were made from each of 3 premolars from 8 persons (donors). Six acrylic mouth appliances were worn by 6 volunteers (carriers). One specimen from each donor was mounted on each appliance. The carriers wore the appliances for 9 days. The appliances were immersed in 0.01 <smlcap>M</smlcap> HCl for 3 min twice per day to imitate a vomiting/reflux situation. The enamel specimens were analysed by a white-light interferometer to measure enamel loss (in micrometres). The enamel loss varied significantly both between the donor teeth (p = 0.009) and the carriers (p = 0.004). The lesion in the specimen with the largest amount of enamel loss was 4 times as deep as in the specimen with the lowest. In 1 carrier, all specimens displayed enamel loss above the mean, including the specimen from the donor with the most resistant enamel. The variation in susceptibility to erosion among individuals appears to be influenced both by the sustainability of the enamel and by factors in the oral environment. This could explain the variation in prevalence and severity of dental erosions among patients exposed to similar acidic challenges. The results suggest that for certain individuals, only minimal acidic challenges may be sufficient to cause damage to the teeth, while others may never develop dental erosions despite extensive exposure to acid.

In situ effect of Tooth Mousse containing CPP-ACP on human enamel subjected to in vivo acid attacks

“…Only samples with SMH values ranged from 310 to 360 VHN were included in the study. Prior to the in situ experiment, the specimens were stored in aqueous thymol solution for 2 weeks and 70% ethanol for 30 min for disinfection [29,30].…”

Impact of customary fluoride rinsing solutions on the pellicle’s protective properties and bioadhesion in situ

“…It must be assumed that all active agents applied to the oral cavity interact primarily with components of the omnipresent pellicle layer. The pellicle is formed by the selective adsorption of salivary proteins and glycoproteins to the tooth surface and it plays a key role protecting it against acid derived demineralization as well as providing bacterial receptors 10 , 11 . For this reason it is important to verify data gathered from various in vitro studies under in situ conditions 10 , 12 .…”

“…While stannous fluoride is very susceptible to pH-dependent precipitation (pH > 4), provision of stannous ions in form of SnCl 2 can increase the concentration of the functional additive to achieve greater effectiveness 26 , 27 . Despite the promising test results of in vitro studies, little has been published about the influence of in situ pellicle formation on the effects of fluoride- and stannous ions at the tooth surface and vice versa 7 , 10 , 11 , 21 . In vitro , mouthrinses with fluorides and particularly if supplemented by stannous ions appeared to modify the quantity and the composition of the pellicle proteins accumulated at the enamel surface 8 , 28 .…”

Consumo excessivo de bebidas potencialmente erosivas: implicações a saúde pública

“…Dessa forma, pode-se considerar a dieta como um dos fatores extrínsecos enquanto agente causador da erosão dental e cárie dental (CARDOSO et al, 2014;UHLEN et al, 2016;CHATURVEDI et al, 2015;SOUZA, 2017). Nessa perspectiva, é importante considerar as propriedades da saliva em relação a sua capacidade tampão, com o pH variando de 6,7 a 7,4, em que ingestão de bebidas com pH inferior a 5,5 pode diminuir seu pH, tornando mais ácida a cavidade bucal e causando desmineralização e consequente erosão do esmalte dentário (UHLEN et al, 2016;CHATURVEDI et al, 2015;GARCIA, 2017).…”