Comparison of factors potentially related to the occurrence of dental erosion in high‐ and low‐erosion groups

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Abstract
Soft drink intake, method of drinking, pH variations, plaque topography, and various salivary, microbial and clinical factors were compared in Saudi men with high (n=10, x̄=20.5 yr) and low (n=9, x̄=20.3 yr) dental erosion. pH‐measurements were carried out with a microtouch electrode at six different intraoral locations after the subjects had consumed 330 ml of regular cola‐type drink in their customary manner. The results showed that higher intake of cola‐type drinks was more common in the high‐ (253 l yr−1) than in the low‐erosion group (140 l yr−1). High erosion was associated with a method of drinking whereby the drink was kept in the mouth for a longer period (71 s vs. 40 s). pH after drinking did not differ between the groups for any of the six measuring sites. Plaque accumulation on the palatal surfaces of maxillary anterior teeth and urea concentration in unstimulated saliva were lower in high‐erosion subjects. Aside from these, there were no differences in salivary and microbial factors between the groups. First molar cuppings, buccal cervical defects, and mouth breathing were more common in the high‐ than in the low‐erosion group. In summary, consumption of cola‐type drink, method of drinking, amount of palatal plaque on anterior teeth, and salivary urea concentration are factors associated with dental erosion.

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