Tooth sensitivity can feel like a quick, sharp twinge when you sip something cold, eat something sweet, breathe in cool Ottawa air or bite down. Sometimes the sensation disappears immediately. At other times, it returns often enough that you start avoiding certain foods or chewing on one side.
Sensitivity is a symptom, not a diagnosis. The Canadian Dental Association (CDA) advises that teeth may become sensitive suddenly or gradually and that a dentist can assess whether the discomfort points to an underlying problem. That assessment matters because several conditions can feel similar but require different care.
What does tooth sensitivity feel like?
People often describe sensitivity as a short, sudden pain triggered by:
- cold or hot food and drinks;
- sweet or acidic foods;
- brushing or flossing;
- cool air; or
- pressure when chewing.
The pattern is useful information. Note which tooth or area hurts, what triggers it, how long it lasts and whether it is becoming more frequent. Bring those details to your dental appointment. Avoid trying to diagnose the cause yourself based only on where the pain seems to be; discomfort can sometimes be difficult to localize.
Why can teeth become sensitive?
One possible reason is exposed dentin—the layer beneath the hard enamel and the material covering a tooth’s root. Gum recession or enamel wear can leave this area less protected, allowing temperature or pressure changes to reach the tooth’s sensitive inner structures more easily.
However, not every twinge is simple dentin hypersensitivity. A cavity, a cracked or chipped tooth, a worn filling, gum disease, clenching or grinding, and irritation following some dental treatments can also cause sensitivity. The CDA lists sensitivity among possible signs of bruxism, along with aching jaws, headaches and fractured teeth. Tooth whitening can also cause temporary sensitivity for some people.
Because the causes overlap, a dental examination is the safest way to distinguish routine sensitivity from a problem needing treatment.
Safe steps while waiting for an appointment
Continue cleaning your teeth gently. Use a soft-bristle toothbrush and fluoride toothpaste, and avoid scrubbing hard at the gumline. The CDA recommends brushing twice daily, flossing every day and waiting about 20 to 30 minutes after eating before brushing. If you choose toothpaste marketed for sensitivity, follow its label and ask your dentist whether it is suitable for you.
Temporarily limiting very cold, very hot or acidic items may reduce discomfort, but it does not identify the cause. Do not place aspirin or other medication directly on a tooth or gum. If you need pain relief, a pharmacist or qualified health-care professional can help you choose an option appropriate for your health, medications and circumstances.
When should you call a dentist?
Arrange a dental assessment if sensitivity is new, persistent, worsening or limited to one tooth. Call promptly if it hurts to bite, you can see a crack or broken filling, or sensitivity is accompanied by swollen or bleeding gums.
Seek urgent dental guidance for severe or escalating pain, facial or gum swelling, fever, trauma or uncontrolled bleeding. Difficulty breathing or swallowing can be an emergency; call 911 or go to the nearest emergency department.
What happens at a sensitivity assessment?
Your dentist will ask about the triggers and timing, review relevant medical and dental history, and examine the teeth, gums and existing restorations. Depending on the findings, the assessment may include gentle testing or dental X-rays. Treatment is based on the cause rather than the symptom alone.
Care might involve changes to brushing technique, a desensitizing or fluoride product, management of a cavity or damaged restoration, treatment for a crack or gum condition, or a plan for grinding and clenching. No single option is right for everyone, and an examination is needed before recommending treatment.
Tooth sensitivity and Ottawa’s seasons
Cold air and icy drinks can make an already-sensitive tooth more noticeable, especially during an Ottawa winter. Seasonal triggers do not mean the underlying issue is harmless. If cold air reliably causes a sharp sensation, mention that pattern at your appointment and consider breathing through your nose or covering your mouth outdoors until the area is assessed.
Book a dental assessment in Ottawa
If tooth sensitivity is affecting what you eat, how you brush or which side you chew on, Ottawa Smiles Family Dental can assess the source and discuss appropriate options. Clinical dental care is available in English, Arabic and Spanish. French front-desk and administrative support is available to help with scheduling and office information.
Request an appointment or call 613-520-0222. Website appointment requests are normally answered within one business day. For urgent symptoms, please call the office rather than relying on an online form.
This article provides general educational information and is not a diagnosis or a substitute for an examination by a dentist or other qualified health-care professional.
العربية — ملخص
قد تظهر حساسية الأسنان كألم قصير وحاد عند تناول أطعمة أو مشروبات باردة أو ساخنة أو حلوة، أو عند العض. وقد ترتبط بانكشاف العاج، أو تسوس الأسنان، أو تشقق السن، أو أمراض اللثة، أو صرير الأسنان. يساعد فحص الأسنان على تحديد السبب قبل اقتراح العلاج. احجز موعداً إذا كانت الحساسية جديدة أو مستمرة أو تزداد سوءاً، واتصل سريعاً عند وجود تورم أو حمى أو ألم شديد أو إصابة. تتوفر الرعاية السريرية باللغة العربية في Ottawa Smiles Family Dental.
Español — Resumen
La sensibilidad dental puede sentirse como un dolor breve y agudo con bebidas frías o calientes, alimentos dulces o al morder. Puede relacionarse con dentina expuesta, caries, una grieta, enfermedad de las encías o apretar y rechinar los dientes. Una evaluación dental permite identificar la causa antes de recomendar tratamiento. Reserve una cita si la sensibilidad es nueva, persistente o empeora; llame cuanto antes si hay hinchazón, fiebre, dolor intenso o traumatismo. Ottawa Smiles Family Dental ofrece atención clínica en español.
Français — Résumé
La sensibilité dentaire peut provoquer une douleur brève au contact du froid, de la chaleur, des aliments sucrés ou pendant la mastication. Plusieurs causes sont possibles, et un examen dentaire est nécessaire pour les distinguer. Prenez rendez-vous si la sensibilité est nouvelle, persistante ou s’aggrave, et téléphonez rapidement en présence d’enflure, de fièvre, de douleur intense ou d’un traumatisme. Ottawa Smiles Family Dental offre un soutien administratif et d’accueil en français pour la prise de rendez-vous et les renseignements sur le cabinet; cela ne signifie pas que les soins cliniques sont offerts en français.