Tag Archives: caries

Cavities of the day

This patient is a 47 year old man who used to drink a lot of Coke and eat lots of M&M’s. He had extensive decay along the gum line and extending under his gums on all his back teeth. These photos are of his upper right and left quadrant teeth before and immediately after. I was able to restore all these teeth without gum surgery or root canals. And his smile looks so much better now.

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Cavity of the day

This patient is a 26 year old woman who uses an Advair asthma inhaler. The inhaler causes dry mouth which allowed these cavities to form. If you use an inhaler always rinse out with water after and brush your teeth as soon as you can following inhaler use. Make sure to see your dentist regularly to check for tooth decay. The cavity in the last molar was to the nerve. I was able to avoid a root canal by placing a vitrebond pulp cap over the exposed nerve and a ceramic composite restoration to restore the tooth. Looks great!!!

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Dr. Gentry’s article in The Elm, The University of Maryland

The University of Maryland

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Tips for Your Teeth: Halloween Edition

Tips for Healthy Teeth

  • Eat Halloween candy right after meals. The saliva produced during meals will help dilute the acids produced by the mouth bacteria in response to the sugar and the saliva will help rinse away food particles.
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  • Avoid candy that lasts a long time. It’s the length of time the sugar is in your mouth that is the critical factor. The longer the candy is in the mouth the more damage to the teeth.
  • Stay away from sticky candy. The longer the sugary candy is stuck to the teeth the more decay will occur. Stay away from gummy bears, sticky fudge and taffy. Stay away from sour candy. Sour candy is highly acidic leading to erosion of enamel.
  • Drink more water. Tap water with fluoride is best. This will help wash away the candy.
  • Eat good healthy foods and don’t fill up on sugary candy. You need good nutrition for healthy teeth and gums.
  • Stay away from sodas and sports drinks. The frequent contact with the sugary liquid will increase damage to teeth.
  • Chewing sugarless gum after eating candy will cause increased saliva production, which will neutralize the acid in the mouth and wash away food.
  • Brush as soon as possible after eating. If you ate sour or acidic foods rinse with water a few times first to neutralize the acid so not to push the acid into the enamel. Brush for two minutes.
  • Floss! Flossing removes plaque and food stuck between the teeth where the toothbrush can’t reach.Happy Halloween
  • Visit your dentist regularly to catch dental problems early, and “treat” them before they get really scary. … Remember good oral health is a major contributor to good overall health.

by Philip A. Gentry, DDS, FAGD
Fellow, Academy of General Dentistry
Dean’s Faculty, Clinical Asst. Professor, Department of General Dentistry, Advanced Education in General Dentistry,
University of Maryland School of Dentistry

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Halloween treats that Dr. Gentry hands out to trick or treaters

Fractured teeth of the day. Every day I see broken teeth. Here are 2 examples from today.

This patient cracked his molar biting a chicken bone. I was able to save the tooth, and without a root canal, but it did require a crown lengthening periodontal surgery and a crown.

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Fractured distal lingual cusp.
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Broken piece removed
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Broken piece.
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Porcelain crown cemented over tooth.

This next patient bit down on a mint candy and fractured her molar down the root. The tooth could not be restored and was extracted and we will place a dental implant.

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Fractured mesial lingual cusp.
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Piece removed, fracture extends down root.

Dr Gentry explains how sugar causes cavities and that it’s okay to enjoy a few scrumptious desserts over the holidays.

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It is true that sugar does cause cavities, but it’s not the sugar directly. The naturally occurring streptococcus bacteria that live in our mouths consume the sugar, ferment it, and produce acid such as lactic acid. It is these acids that cause teeth demineralization and the formation of cavities. So it is actually the acid from the bacteria in plaque in our mouth that eats the holes in our teeth causing cavities.

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Here’s the interesting part, it’s not the total amount of sugar we eat, but the total amount of time the sugar is in contact with our teeth. It is preferable to have a piece of pumpkin pie with a scoop of ice cream for Thanksgiving dessert, than sip on a soda all afternoon. It is better to have a few sugar cookies, or slice of Christmas apple pie, than to repeatedly sip coffee with sugar all morning long. One Altoids mint or cough drop per hour throughout the day is ten times more cavity producing than 1 big piece of cake for dessert, even though the cake has much more sugar and calories.

The repeated cycles of eating sugar and acid formation is what is the key. It is the frequency, or the amount of time the sugar is in the mouth, not the total amount of sugar. So do enjoy a few scrumptious (and quick) holiday desserts, just please make sure to brush and floss after every meal and visit your dentist regularly. Happy Holidays!!!

Philip A. Gentry, DDS, FAGD

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Article published in The Elm, The University of Maryland

Root canals explained.

What is a root canal?

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To understand root canal treatment, it helps to know something about the anatomy of the tooth. Inside the tooth, under the white enamel and a hard layer called the dentin, is a soft tissue called the pulp. The pulp contains blood vessels, nerves, and connective tissue and creates the surrounding hard tissues of the tooth during development.

The pulp extends from the crown of the tooth to the tip of the roots where it connects to the tissues surrounding the root. The pulp is important during a tooth’s growth and development. However, once a tooth is fully mature it can survive without the pulp, because the tooth continues to be nourished by the tissues surrounding it

Why would I need a root canal?

A root canal is necessary when the pulp, the soft tissue inside the root canal, becomes inflamed or infected. The inflammation or infection can have a variety of causes: deep decay, or a crack or chip in the tooth. In addition, an injury to a tooth may cause pulp damage even if the tooth has no visible chips or cracks. If pulp inflammation or infection is left untreated, it can cause pain or lead to an abscess.

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What are the signs of needing root canal treatment?

Signs to look for include pain, prolonged sensitivity to heat or cold, tenderness to touch and chewing, discoloration of the tooth, and swelling, drainage and tenderness in the lymph nodes as well as nearby bone and gum tissues. Sometimes, however, there are no symptoms.

How does root canal treatment save the tooth?

The dentist removes the inflamed or infected pulp, carefully cleans and shapes the inside of the root canal, then fills and seals the space. Afterwards, a crown or other restoration on the tooth to protect and restore it to full function. After restoration, the tooth continues to function like any other tooth.

Will I feel pain during or after the procedure?

Many root canal procedures are performed to relieve the pain of toothaches caused by pulp inflammation or infection. With modern techniques and anesthetics, most patients report that they are comfortable during the procedure.

For the first few days after treatment, your tooth may feel sensitive, especially if there was pain or infection before the procedure. This discomfort can be relieved with over-the-counter or prescription medications. Your tooth may continue to feel slightly different from your other teeth for some time after your root canal treatment is completed.

Step-by-Step Root Canal Procedure

Root canal treatment can often be performed in one or two visits and involves the following steps:

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1. The dentist examines and x-rays the tooth, then administers local anesthetic. After the tooth is numb, a small protective sheet called a “dental dam” is placed over the area to isolate the tooth and keep it clean and free of saliva during the procedure.

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2. An opening in the crown of the tooth. Very small instruments are used to clean the pulp from the pulp chamber and root canals and to shape the space for filling.

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3. After the space is cleaned and shaped, the dentist fills the root canals with a biocompatible material, usually a rubber-like material called gutta-percha. The gutta-percha is placed with an adhesive cement to ensure complete sealing of the root canals. In most cases, a temporary filling is placed to close the opening. The temporary filling will be removed usually 1 week later.

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Can all teeth be saved with a root canal?

Most teeth can be saved. Occasionally, a tooth can’t be saved because the root canals are not accessible, the root is severely fractured, the tooth doesn’t have adequate bone support, or the tooth cannot be restored.

Here’s photos of what an actual root canal looks like on a patient.

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Access opening made by Dr. Gentry on inside surface of tooth.
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Isolation dam placed over tooth.
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Before treatment x-ray.
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Cleaning the root canal.
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Final root canal fill.

 

Restoration of a large carious lesions using the Garrison Interproximal Matrix System

When deep decay that is close to the tooth pulp is present in a tooth, many times it requires a root canal. In this 35 year old patient, Dr. Gentry restores her upper bicuspid tooth without a root canal or crown. Gentry cleans out the decay, places a Vitrabond glass ionomer pulp cap, and places a Herculite composite restoration, using the Garrison Matrix System.

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3D XR Ring

 

 

Cavities

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Cavities are permanently damaged areas in the hard surface of your teeth that develop into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of factors, including bacteria in your mouth, frequent snacking, sipping sugary drinks, and not cleaning your teeth well. Cavities and tooth decay are among the world’s most common health problems.

If cavities aren’t treated, they get larger and affect deeper layers of your teeth. They can lead to severe toothache, infection and tooth loss. Regular dental visits and good brushing and flossing habits are your best protection against cavities and tooth decay.

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Some examples of Dr. Gentry fixing  patient’s dental cavities:

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Decay, upper back molar
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Decay cleaned out
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Composite restoration placed
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Decayed premolar tooth
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Opened up to reveal deep decay
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Decay removed
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Matrix band placed
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Finished restorations
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Decay on sides of teeth extending under the gums
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Decay removed and teeth restored