Dental Exams, Cleanings & Prevention
Maintenance of dental health starts with early diagnosis, restoration of teeth and periodontium to health, maintenance with home care (by the patient), and professional cleanings.
A comprehensive dental exam will be performed by your dentist at your initial dental visit. At regular check-up exams, your dentist and hygienist will include the following:
- Examination of diagnostic x-rays (radiographs): Essential for detection of decay, tumors, cysts, and bone loss. X-rays also help determine tooth and root positions.
- Oral cancer screening: Check the face, neck, lips, tongue, throat, tissues, and gums for any signs of oral cancer.
- Gum disease evaluation: Check the gums and bone around the teeth for any signs of periodontal disease.
- Examination of tooth decay: All tooth surfaces will be checked for decay with special dental instruments.
- Examination of existing restorations: Check current fillings, crowns, etc.
Professional Dental Cleanings
Professional dental cleanings (dental prophylaxis) are usually performed by Registered Dental Hygienists. Your cleaning appointment will include a dental exam and the following:
- Removal of calculus (tartar): Calculus is hardened plaque that has been left on the tooth for some time and is now firmly attached to the tooth surface. Calculus forms above and below the gum line and can only be removed with special dental instruments.
- Removal of plaque: Plaque is a sticky, almost invisible film that forms on the teeth. It is a growing colony of living bacteria, food debris, and saliva. The bacteria produce toxins (poisons) that inflame the gums. This inflammation is the start of periodontal disease!
- Teeth polishing: Remove stain and plaque that is not otherwise removed during tooth brushing and scaling.
Oral Cancer Exam
According to research conducted by the American Cancer society, more than 30,000 cases of oral cancer are diagnosed each year. More than 7,000 of these cases result in the death of the patient. The good news is that oral cancer can easily be diagnosed with an annual oral cancer exam, and effectively treated when caught in its earliest stages.
Oral cancer is a pathologic process which begins with an asymptomatic stage during which the usual cancer signs may not be readily noticeable. This makes the oral cancer examinations performed by the dentist critically important. Oral cancers can be of varied histologic types such as teratoma, adenocarcinoma and melanoma. The most common type of oral cancer is the malignant squamous cell carcinoma. This oral cancer type usually originates in lip and mouth tissues.
There are many different places in the oral cavity and maxillofacial region in which oral cancers commonly occur, including:
- Salivary Glands
- Oropharyngeal Region (throat)
Reasons for oral cancer examinations
It is important to note that around 75 percent of oral cancers are linked with modifiable behaviors such as smoking, tobacco use and excessive alcohol consumption. Your dentist can provide literature and education on making lifestyle changes and smoking cessation.
When oral cancer is diagnosed in its earliest stages, treatment is generally very effective. Any noticeable abnormalities in the tongue, gums, mouth or surrounding area should be evaluated by a health professional as quickly as possible. During the oral cancer exam, the dentist and dental hygienist will be scrutinizing the maxillofacial and oral regions carefully for signs of pathologic changes.
The following signs will be investigated during a routine oral cancer exam:
- Red patches and sores– Red patches on the floor of the mouth, the front and sides of the tongue, white or pink patches which fail to heal and slow healing sores that bleed easily can be indicative of pathologic (cancerous) changes.
- Leukoplakia– This is a hardened white or gray, slightly raised lesion that can appear anywhere inside the mouth. Leukoplakia can be cancerous, or may become cancerous if treatment is not sought.
- Lumps – Soreness, lumps or the general thickening of tissue anywhere in the throat or mouth can signal pathological problems.
Diagnosis and Treatment
The oral cancer examination is a completely painless process. During the visual part of the examination, the dentist will look for abnormality and feel the face, glands and neck for unusual bumps. Lasers which can highlight pathologic changes are also a wonderful tool for oral cancer checks. The laser can “look” below the surface for abnormal signs and lesions which would be invisible to the naked eye.
If abnormalities, lesions, leukoplakia or lumps are apparent, the dentist will implement a diagnostic impression and treatment plan. In the event that the initial treatment plan is ineffective, a biopsy of the area will be performed. The biopsy includes a clinical evaluation which will identify the precise stage and grade of the oral lesion.
Oral cancer is deemed to be present when the basement membrane of the epithelium has been broken. Malignant types of cancer can readily spread to other places in the oral and maxillofacial regions, posing additional secondary threats. Treatment methods vary according to the precise diagnosis, but may include excision, radiation therapy and chemotherapy.
During bi-annual check-ups, the dentist and hygienist will thoroughly look for changes and lesions in the mouth, but a dedicated comprehensive oral cancer screening should be performed at least once each year.
If you have any questions or concerns about oral cancer, please ask your dentist or dental hygienist.
Prophylaxis (Teeth Cleaning)
A dental prophylaxis is a cleaning procedure performed to thoroughly clean the teeth. Prophylaxis is an important dental treatment for halting the progression of periodontal disease and gingivitis.
Periodontal disease and gingivitis occur when bacteria from plaque colonize on the gingival (gum) tissue, either above or below the gum line. These bacteria colonies cause serious inflammation and irritation which in turn produce a chronic inflammatory response in the body. As a result, the body begins to systematically destroy gum and bone tissue, making the teeth shift, become unstable, or completely fall out. The pockets between the gums and teeth become deeper and house more bacteria which may travel via the bloodstream and infect other parts of the body.
Reasons for prophylaxis/teeth cleaning
Prophylaxis is an excellent procedure to help keep the oral cavity in good health and also halt the progression of gum disease.
Here are some of the benefits of prophylaxis:
- Tartar removal – Tartar (calculus) and plaque buildup, both above and below the gum line, can cause serious periodontal problems if left untreated. Even using the best brushing and flossing homecare techniques, it can be impossible to remove debris, bacteria and deposits from gum pockets. The experienced eye of a dentist using specialized dental equipment is needed in order to spot and treat problems such as tartar and plaque buildup.
- Aesthetics – It’s hard to feel confident about a smile marred by yellowing, stained teeth. Prophylaxis can rid the teeth of unsightly stains and return the smile to its former glory.
- Fresher breath – Periodontal disease is often signified by persistent bad breath (halitosis). Bad breath is generally caused by a combination of rotting food particles below the gum line, possible gangrene stemming from gum infection, and periodontal problems. The removal of plaque, calculus and bacteria noticeably improves breath and alleviates irritation.
- Identification of health issues – Many health problems first present themselves to the dentist. Since prophylaxis involves a thorough examination of the entire oral cavity, the dentist is able to screen for oral cancer, evaluate the risk of periodontitis and often spot signs of medical problems like diabetes and kidney problems. Recommendations can also be provided for altering the home care regimen.
What does prophylaxis treatment involve?
Prophylaxis can either be performed in the course of a regular dental visit or, if necessary, under general anesthetic. The latter is particularly common where severe periodontal disease is suspected or has been diagnosed by the dentist. An endotracheal tube is sometimes placed in the throat to protect the lungs from harmful bacteria which will be removed from the mouth.
Prophylaxis is generally performed in several stages:
- Supragingival cleaning – The dentist will thoroughly clean the area above the gum line with scaling tools to rid them of plaque, calculus, and stain.
- Subgingival cleaning – This is the most important step for patients with periodontal disease because the dentist is able to remove calculus from the gum pockets and beneath the gum line.
- Root planing – This is the smoothing of the tooth root by the dentist to eliminate any remaining bacteria and toxins which have affected the root surface. These bacteria are extremely dangerous to periodontitis sufferers, so eliminating them is one of the top priorities of the dentist.
- Medication – Following scaling and root planing, if necessary, an antibiotic or antimicrobial cream is often placed in the gum pockets. These materials promote fast and healthy healing in the pockets and help ease discomfort.
- X-ray and examination – Routine X-rays can be extremely revealing when it comes to periodontal disease. X-rays show the extent of bone and gum recession, and also aid the dentist in identifying areas which may need future attention.
Dental radiographs (x-rays) are essential, preventative, diagnostic tools that provide valuable information not visible during a regular dental exam. Dentists and dental hygienists use this information to safely and accurately detect hidden dental abnormalities and complete an accurate treatment plan. Without x-rays, problem areas may go undetected.
Dental x-rays may reveal:
- Abscesses or cysts
- Bone loss
- Cancerous and non-cancerous tumors
- Decay between the teeth
- Developmental abnormalities
- Poor tooth and root positions
- Problems inside a tooth or below the gum line
Detecting and treating dental problems at an early stage can save you time, money, unnecessary discomfort, and your teeth!
Are dental x-rays safe?
We are all exposed to natural radiation in our environment. The amount of radiation exposure from a full mouth series of x-rays is equal to the amount a person receives in a single day from natural sources.
Dental x-rays produce a low level of radiation and are considered safe. Dentists take necessary precautions to limit the patient’s exposure to radiation when taking dental x-rays. These precautions include using lead apron shields to protect the body and digital radiography has cut exposure levels up to 80%! The use of digital x-rays further reduces the amount of radiation delivered.
How often should dental x-rays be taken?
The need for dental x-rays depends on each patient’s individual dental health needs. Your dentist and dental hygienist will recommend necessary x-rays based on the review of your medical and dental history, dental exam, signs and symptoms, age consideration, and risk for disease.
A full mouth series of dental x-rays is recommended for new patients. A full series is usually good for two to three years. Bite-
Because periodontal disease is an infection, it may cause bad breath. Elimination of the infection and good daily brushing and flossing is needed to stop this problem.
However, it is interesting to note that the vast majority of people with chronic bad breath have healthy gums. We now know that almost all halitosis (bad breath) is caused by bacteria on the back of the tongue breaking down mouth proteins into odor causing compounds.
|Bacteria scraped from back of tongue|
Vigorous tongue scraping will help with bad breath, but for some people this is still not enough. Specialized testing and treatment is available for those patients, and complete elimination of the problem can be expected.