Why does trident gum get wet

After one too many heart-thumping moments of putting a piece of obviously ancient gum into my mouth and waiting for a nasty reaction, I've decided to figure out once and for all if gum can go bad. I recently bought a new pack of gum, and after examining it I did actually find an expiration date on it which is about six months from now. Given that there are nine pieces of gum in the package, I'd like to think I'll finish it off by October. But what if I happen to lose the package, and rediscover it a year from now?

Would it be a health risk to chew the gum? While I'd probably rather have a new pack, there may be a gum-related emergency where I'll need my gross old pack of chewing gum. According to the International Chewing Gum Association, chewing gum is very stable. This is because it's low in moisture and non-reactive. Gum is not required by law to have an expiration date in most countries because of this. Only the spearmint and cinnamon-flavored gum significantly increased the salivary pH.

Gum flavor can affect the SFR and special flavors may be advised for different individuals according to their oral conditions. Hyposalivation is defined as a diminished salivary flow and may lead to xerostomia, which refers to a subjective experience of mouth dryness.

It has been seen that chewing gum taste is an important factor in an individual's preference and gum selection, and can influence long-term compliance. Fifteen volunteer dental students seven males and six females, of age The participants were in good general health and oral hygiene, with normal chewing ability and had no evidence of dry mouth or salivary gland disorders.

Neither took any medications nor wore any intraoral appliances, and did not smoke. The participants were asked not to eat, drink, or chew gum for at least one hour prior to the saliva collection time. The five flavored chewing gums were spearmint, cinnamon, watermelon, strawberry, and apple Orbit, Wrigley Poland Sp. Each pellet weighed 1. In order to avoid the possible confounding effects of circadian rhythms in the SFR, the study was performed at the same time on six consecutive days 9—11 a.

After five minutes, while some volunteers still continued to collect only unstimulated saliva, the other participants were asked to start chewing one pellet of the five flavored gums, at their natural chewing frequency. The whole saliva was collected over time periods of 0 — 1, 1 — 3, and 3 — 6 minutes in separate containers.

To calculate the weight of the saliva, the containers were weighed before and after gathering saliva, using digital scales, with a precision of 0. The pH of the sampled saliva was also measured before and after chewing gum.

The electrode was placed in the sample and the pH recorded to two decimal places. For statistical data analysis, the unstimulated salivary flow and pH data were analyzed with a paired t -test. Stimulated flow and pH data were compared with the corresponding data for unstimulated saliva, by one-way analysis of variance ANOVA. The Duncan New Multiple Range test was employed to determine whether or not there were significant differences in the flow rate. The results for unstimulated and stimulated salivary flows, with different flavors of gum, are shown in [ Figure 1 ].

Mean salivary weight after chewing different flavored gums compared to non-chewing gum salivary weight in the first, 1—3 minute and 3—6 minute periods. All five flavored gums significantly increased salivary secretion and pH. Among these, the strawberry-flavored gum showed the highest weight approximately 7. The Duncan test revealed that the strawberry-flavored gum only induced significantly higher SFR compared to the cinnamon-flavored gum, but not with other flavored gums.

During 1—3 minutes, the strawberry and apple-flavored gums showed only significantly higher SFR compared to the cinnamon-flavored gum. There were no significant differences in the flow rates elicited by each flavored gum in the third-to-sixth minute interval, although the spearmint- and strawberry-flavored gums induced higher and lower SFR, respectively.

In this study we compared five different sugar-free chewing gum flavors cinnamon, spearmint, strawberry, watermelon, and apple with regard to the effects on the SFR and pH.

All tasted gums stimulated the SFR significantly during the first, 1 — 3, and 3 — 6 minute intervals, even though a significant progressive decline of the flow rate was observed [ Figure 1 ]. A progressive fall in flow rate, with time, has been shown in the previous studies.

Our findings were more consistent with the values achieved by Polland and Anderson. Although Dawes demonstrated very little difference in variant flavored chewing gums and the ability to stimulation of flow,[ 6 ] and Bots suggested that stimulation flow rate by chewing gum is not related to differences in gum taste, size, shape, or weight,[ 11 ] we found a significant higher stimulation of SFR with chewing strawberry-flavored gum compared to cinnamon-flavored gum 7.

Jensen et al. On the other hand, although all different flavored chewing gum increased salivary pH, these values were significant only with cinnamon- and spearmint-flavored gums. The increase in salivary pH on stimulation was due to the increase in bicarbonate concentration, which was proportional to the flow rate. Ingredient comparison of five flavored gums used in this study, demonstrated that fruit-flavored, but not spearmint and cinnamon-flavored gums, contained citric and maleic acids, which could be responsible for less pH increase after chewing these fruity gums; as Dawes found a transient decrease in salivary pH in one subject who chewed a test gum containing 1.

On the other hand, the presence of these two acids in fruity gums can lead to more salivary secretion after chewing these gums, compared to cinnamon- and spearmint-flavored gums. Moreover, at the end of six minutes after chewing strawberry-flavored gum, the mean SFR was yet 3. On the other hand, in patients who were more susceptible to pH fall and dental caries, the use of spearmint and cinnamon-flavored gums, which could raise the salivary pH significantly, was advisable.

Go gluten-free, don't eat egg yolks, and over 20 more of the worst diet tips ever. Many people end up with contracted muscles of the jaw, head, and neck, which can lead to headaches, earaches, or toothaches over time. Eat an apple instead, which satisfies the urge to chew and reduces your risk of cardiovascular disease at the same time. In addition to swallowing air, artificial sweeteners such as sorbitol and mannitol can cause diarrhea in otherwise healthy people.

It doesn't sound too bad until you find out it's a yellow waxy substance secreted by the sebaceous glands of sheep. Known as "wool fat," lanolin is harvested by squeezing the sheep's harvested wool between rollers.

Unsavory indeed. And research shows that chewing gum can release the mercury from the fillings into your system. The problem? High levels of mercury can cause neurological issues as well as chronic illnesses and mental disorders.