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Our team at Cataraqui Dental Centre understands that the sights, sounds and sensations at a dental office can be unsettling for some patients. One effective technique that we use to comfort you is to offer the gas nitrous oxide. Nitrous oxide is a common anesthetic used during many dental procedures.

What is nitrous oxide?

Nitrous oxide is an oxide of nitrogen which has a slight sweet odor and taste. During medical or dental procedures, the gas is mixed with oxygen then inhaled through a mask that covers your nose. Within minutes, you should feel calm and experience an overall sense relaxation. You will be able to breathe on your own, move your limbs, and be conscious enough to hear and respond to our dentist's questions. The effects of nitrous oxide disappear shortly after the mask is removed and the drug is quickly eliminated from your body.

Is nitrous oxide safe?

Recreational use of nitrous oxide for its euphoric effects can be dangerous, however, the drug is combined with oxygen at dental offices. This ensures oxygen reaches the brain and prevents dangerous side effects or hypoxia. Nitrous oxide inhalation is a safe and effective technique to reduce anxiety, produce analgesia, and enhance effective communication.

Nitrous oxide is non-addictive and non-allergic, however, it may cause nausea in up to ten percent of patients. The drug is not recommended for people with some medical conditions such as chronic pulmonary disease. We recognize that all patients are different and encourage you to talk with Drs. Tom Holmes, Gordon Lansdown, Karen Nesbitt, Nick Cosman, Chuck Burgess, Brett Empringham, and Patrick McDonough about whether nitrous oxide would be a good option for you.

Our team wants to help all patients in Kingston, ON to overcome dental anxiety, so please, give us a call at Cataraqui Dental Centre.

There is no substitution for a natural healthy tooth. Dental fillings are intended to replace tooth structure and restore a tooth damaged by decay (a cavity) back to its normal function and shape. Silver (amalgam) and tooth-colored (composite) fillings last a long time, though they can develop decay when the integrity is compromised by open margins, fracture, or recurrent decay. In this blog, we discuss the signs and symptoms that indicate your filling may need to be replaced in order to prevent further complications.

Amalgam fillings are made of an alloy (mixed metals) that expands and contracts. They have no bonding properties, and so to place an amalgam filling, the hole in the tooth may need to be larger. Because of these two factors, fractures frequently occur. There are three types of cracks that are commonly associated. Craze lines are superficial with no treatment needed. Fractures extend along other parts of the tooth and may require a filling replacement or crown. Cracks extend toward the root and can require a root canal and crown or, if too severe, extraction.

A filing needs to be sealed to the tooth. If the seal between the tooth and the filling breaks down, food debris and bacteria can seep down under the filling and cause recurrent decay. If the decay is treated early, replacing the filling is adequate. If not, a crown and even a root canal may be needed. The biggest mistake you can make is waiting to do something about a broken or unsealed filling until it is painful. Doing this will only make the treatment more involved and often times more expensive.

Regular dental exams and X-rays are used to evaluate dental fillings. You will not be able to tell on your own when your fillings start to fail. Just as a car mechanic will change the oil, correct your alignment, or change your tires, a dental checkup will help you identify small concerns to fix as you go in order to avoid a critical emergency.

Pay attention to any bite or temperature sensitivity in teeth that have fillings. This can be an indicator for some of the problems listed above. You know your teeth better than anyone. Your observations are most valuable when evaluating a filling for replacement. If replacement is needed, know you are doing what is best to prevent future dental calamities and make an appointment to see Drs. Tom Holmes, Gordon Lansdown, Karen Nesbitt, Nick Cosman, Chuck Burgess, and Dr. Empringham.

“But they are only baby teeth; won’t they just fall out?” Our team at Cataraqui Dental Centre has had these questions asked many times from parents over the years. Primary teeth, or “baby teeth,” will indeed come out eventually, to be replaced by permanent teeth as the child grows and develops. These teeth serve a great purpose as the child continues to develop and require specific care.

Because baby teeth are temporary, some parents are unenthusiastic about fixing cavities in them. This may be due to the cost or having to force a child undergo the process—especially having to receive an injection. But if a cavity is diagnosed early enough, an injection can often be avoided. More important, failure to fill cavities in primary teeth when they are small and manageable can have lasting consequences in cost and health concerns. Serious illnesses in children have been diagnosed which began as a cavity.

Primary teeth act as a guide for permanent teeth. When decay reaches the nerve and blood supply of a tooth, this can cause an abscess. Severe pain and swelling may result. At that point, the only treatment options are either to remove the tooth or to perform a procedure similar to a baby root canal. When a primary tooth is lost prematurely—to decay or a painful abscess—the adjacent teeth will often shift and block the eruption of a permanent tooth. Braces or spacers become necessary to avoid crowding or impaction of the permanent tooth.

There is nothing more heartbreaking for Drs. Tom Holmes, Gordon Lansdown, Karen Nesbitt, Nick Cosman, Chuck Burgess, and Dr. Empringham than to have to treat a child experiencing pain and fear. To all the parents of my little patients our team strongly recommend filling a small cavity and not waiting until it becomes a larger problem such as those described above.

Prevention is the key to a healthy mouth for our smallest patients. Parents should allow the child to brush his or her teeth using a pea-sized amount of fluoride toothpaste and then take a turn to ensure the plaque gets removed from all surfaces: cheek side, tongue side, and chewing edges of all the teeth.

Brushing your teeth twice a day with fluoride toothpaste that has the Canadian Dental Association seal of approval can help prevent tooth decay and relieve other conditions, such as bad breath, sensitive teeth, and gingivitis.

Beyond these health effects, another motivation for frequently brushing your teeth with high-quality toothpaste is to keep your teeth white. If you want whiter teeth but do not want to undergo in-office or at-home bleaching treatments, you might consider choosing whitening toothpaste for your daily brushing.

Why Consider Whitening Toothpaste

Whiter teeth are more attractive, which can help you feel more confident in your smile. Your smile is also one of the main components of the first impression you make on people in your professional and personal life. Having a whiter smile and greater self-assurance can send the message that you take care of yourself and are confident in your abilities.

How Whitening Toothpaste Works

The Canadian Dental Association explains that all toothpaste has whitening properties because they help remove food particles from your teeth. To carry the Canadian Dental Association seal for whitening, however, toothpaste must contain certain chemicals that help remove stains.

Unlike bleaching products, which contain carbamide peroxide or hydrogen peroxide, whitening toothpaste only cleans the enamel rather than changing the color of your teeth. To obtain the benefits of whitening toothpaste, you need to use it regularly.

The Effectiveness of Whitening Toothpaste Varies

Due to individual variations in the color of your teeth, some people are more likely than others to achieve the desired results with whitening. Teeth that are tinted grayish are unlikely to respond well to bleaching, while brown teeth can sometimes respond, and yellowish teeth are most likely to become pearly white with bleaching.

If Drs. Tom Holmes, Gordon Lansdown, Karen Nesbitt, Nick Cosman, Chuck Burgess, and Dr. Empringham and our staff believe that bleaching is not a viable option for you, proper oral hygiene and the use of a whitening toothpaste are your best bets for keeping your teeth as white as possible. In addition, avoid using tobacco products, and rinse your mouth after drinking coffee.