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A dentist can use fluoride in various forms to help stop and even repair the damage that has occurred due to tooth decay.Ī dentist can apply professional fluoride treatments directly to the teeth. Treatment for tooth decay can include: Early-stage fluoride treatmentsįluoride is a mineral that can help strengthen enamel.

experience gastroesophageal reflux, also known as acid reflux, or GERDĪ dentist will be able to recommend treatment for a person with tooth decay, depending on its severity.

have an eating disorder, such as anorexia or bulimia.

do not brush their teeth twice a day with fluoride toothpaste.

have weak enamel due to genetics or illness.

The ADA indicate that this may make the tooth more susceptible to decay.Ī person may have a higher chance of developing tooth decay if they: Older adults may experience gum recession, which is where the gums pull away from the tooth, exposing the root of the tooth.Ĭementum, which is softer than enamel, covers the root of the tooth. The Center for Disease Control and Prevention (CDC) estimate that around 20% of children aged 5–11 years have at least one untreated decayed tooth. Tooth decay can affect people of any age. Over time, these acids leach out minerals from teeth, erode the enamel, causing tooth decay, and eventually, cavities. When a person eats sugary or starchy food, the bacteria in the plaque produce acids that attack tooth enamel. Plaque is a sticky layer of bacteria that forms on teeth. Damage from tooth decay can range from causing wear to the enamel to painful abscesses within the pulp of the tooth.Īn article in the Journal of the American Dental Association (JADA) state that tooth decay occurs due to a buildup of plaque on a tooth. Tooth decay can occur in varying degrees of severity. The pulp contains blood vessels, nerves, and connective tissue.

Pulp: The pulp is the center of the tooth.

The stimulation of these nerves can cause pain and sensitivity in the tooth. Small tubes within the dentin allow hot and cold food to stimulate the nerves of the tooth. When the enamel is damaged, it may expose the dentin.

Dentin: Dentin is the second layer of a tooth.

Tooth enamel contains no living cells and is the hardest structure in the human body.

Enamel: Enamel is the hard outer layer that protects the inner layers of a tooth.Once tooth decay has eroded the enamel, cavities can start to form.Īccording to the American Dental Association (ADA), a tooth consists of three layers: Tooth decay, also known as dental caries or cavities, is a disease that causes the breakdown of tooth enamel. Nltk_tokens = nltk.Share on Pinterest A person with tooth decay may experience sensitivity to sugary, hot, or cold food and drinks. In the below example we have word tokens printed backwards form the same file using both the package and nltk module. For this we first read the lines backwards and then tokenize the words in it with applying reverse function. We can also read the words in the file backward. You can verify the lines have been read in a reverse order. # getting lines by lines starting from the last line up With FileReadBackwards("Path\GodFather.txt", encoding="utf-8") as BigFile: Now to read the file backwards we use the installed module.įrom file_read_backwards import FileReadBackwards The Don barely survives, which leads his son Michael to begin a violent mob war against Sollozzo and tears the Corleone family apart. This does not please Sollozzo, who has the Don shot down by some of his hit men. He approaches Don Corleone about it, but, much against the advice of the Don's lawyer Tom Hagen, the Don is morally against the use of drugs, and turns down the offer. Drug dealer Virgil Sollozzo is looking for Mafia families to offer him protection in exchange for a profit of the drug money. His youngest son Michael has returned from WWII just in time to see the wedding of Connie Corleone (Michael's sister) to Carlo Rizzi.Īll of Michael's family is involved with the Mafia, but Michael just wants to live a normal life. Vito Corleone is the aging don (head) of the Corleone Mafia Family. When we run the above program, we get the following output − With open ("Path\GodFather.txt", "r") as BigFile: To achieve this requirement we install the required package to perform this action by using the command below.īut before reading the file backwards, let's read the content of the file line by line so that we can compare the result after backward reading. For example, the data in the file has latest record in the bottom and we want to read the latest records first. But there may be scenarios where we want to read the last line first. When we normally read a file, the contents are read line by line from the beginning of the file.