Cold air through a cracked window, a sip of coffee too soon, that first jolt of tooth sensitivity rarely gets taken seriously until it starts happening daily. A decayed or cracked tooth is not always behind it. Worn enamel, or a gum line that has receded past where it should sit, leaves dentin handling hot, cold, and sweet that it was never built to take on directly.
Vayner Emergency Dentistry treats sensitive and hypersensitive teeth out of Reseda week after week. Dr. Jacob Vayner has handled everything from a brief sting that comes and goes to pain sharp enough to cut a meal short halfway through.
At Vayner Emergency Dentistry, sensitivity cases mostly involve patients between 18 and 44, the age range that reports it most often. Coffee and wine drinkers whose enamel has worn down over years of acidic exposure make up a steady share of who Dr. Jacob Vayner sees. A new filling, recent orthodontic work, or a whitening treatment shows up just as often in the patient history, right alongside grinding nobody noticed until now. Our emergency dentistry treatments address these causes quickly—desensitizing agents, protective restorations, occlusal guards for bruxism, and urgent repairs—so patients get relief and a plan to prevent recurrence.
What Causes Tooth Sensitivity
Sensitivity comes down to exposed dentin most of the time. Below are the causes of tooth sensitivity.
- Acidic foods, soda, or brushing too hard wearing enamel down or eroding it outright
- The cervical area near the root, left exposed once gum recession sets in
- Cracked or chipped teeth, letting temperature reach the nerve directly
- Bruxism, grinding that wears occlusal surfaces down over time
- Teeth whitening or bleaching treatments, a common but temporary trigger
- Gingivitis or periodontitis pulling inflamed gum tissue away from the tooth itself
Signs of Tooth Sensitivity
The signs of tooth sensitivity vary for every patient. Below are the signs of tooth sensitivity.
- Pain that hits sudden and sharp, set off by hot, cold, or sweet.
- A discomfort that drops off fast the moment the trigger is gone.
- Tenderness when brushing or flossing near the gum line.
- Pain isolated to one tooth, anterior or posterior, rather than the whole mouth.
- A dull ache that lingers after biting down on something firm
Types of Tooth Sensitivity We Treat
The types of tooth sensitivity we treat depend on what is exposing the nerve and how deep the problem actually runs. Below are the types of tooth sensitivity we treat.
- Cervical Sensitivity. Dentin exposed right at the gum line, the result of recession or years of heavy handed brushing.
- Post-Restorative Sensitivity. Temporary discomfort after a filling, crown, or bonded composite settles into place.
- Whitening-Related Sensitivity. A short-term reaction to bleaching agents, usually resolving within a few days of finishing treatment.
- Pulpal Sensitivity. Deeper, sharper pain suggesting the nerve itself is inflamed, sometimes from decay or a cracked tooth rather than simple wear.
Dentin hypersensitivity affects 11.5% of adults.
Source: PuBMeD
What Happens During a Tooth Sensitivity Exam
During a tooth sensitivity exam, decay, infection, and structural damage get ruled out before any diagnosis sticks. Below are the steps involved in a tooth sensitivity exam.
- A mirror and probe checking visually for recession, wear, or a crack along the surface.
- A cold or air test, isolating exactly which tooth reacts and how strongly.
- Digital x-rays pulling up anything hidden underneath, decay, an abscess, or a cracked root.
- A bite test, ruling out occlusion problems or a high spot on a recent filling.
Tooth Sensitivity Treatment Options
Tooth sensitivity treatment options depend on what is exposing the dentin, not on the sensitivity itself. Below are the treatment options for tooth sensitivity.
- Desensitizing gel or sensitivity toothpaste, often built around potassium nitrate or stannous fluoride to block the nerve signal
- A fluoride treatment, professional strength, to remineralize porous enamel
- Bonding agent applied directly over exposed dentin near the gum line
- A dental sealant, protecting an area before sensitivity has a chance to set in
- A crown, when an existing filling or cracked tooth needs more coverage than bonding alone provides
- A root canal, in cases where pulpal involvement means the nerve itself needs treatment from an endodontist
“Patients come in thinking sensitivity is just sensitivity, and most of the time it is. Pain that keeps getting worse instead of settling down is the exception worth checking.” – Dr. Jacob Vayner, DDS
How to Prevent Tooth Sensitivity
Tooth sensitivity is prevented through a handful of consistent daily habits. Below are ways to prevent tooth sensitivity.
- A soft toothbrush paired with fluoridated toothpaste, kept gentle around the gum line
- A custom bite guard or mouthguard at night, stopping bruxism before it grinds enamel down further
- A hygienist handling routine cleanings and prophylaxis, clearing plaque, tartar, and calculus before any of it reaches the gum line
- Cutting back on acidic food and drink, since it erodes enamel faster than most people expect
- Catching gum recession early with a periodontist, before it has room to worsen
What Patients Are Saying
“I was treated with such kindness and gentleness by Dr. Vayner, who saw me at very short notice. I decided to get a root canal, and Dr. Vayner was very communicative.” – Andrew Tompe
“I have been at so many different dental doctors, this clinic is the best one i used!!!” – Aviran K
Common Questions About Tooth Sensitivity
Why do my teeth hurt when I eat something cold?
Your teeth hurt when you eat something cold because the cold sets off fluid movement inside the dentin tubules, and that movement is what the nerve actually picks up as pain.
Is tooth sensitivity the same as a cavity?
Not always. Worn enamel, gum recession, or a recent restoration can all feel similar. Only an exam tells you which one is actually behind it.
How long does sensitivity last after a filling?
Sensitivity lasts for a few weeks at most while the tooth adjusts to the new restoration. Anything stretching past a month is worth a follow up visit.
Can whitening treatments cause permanent sensitivity?
No. Sensitivity tied directly to whitening fades once the bleaching ends. Permanent sensitivity usually points to something else that was already present beforehand.
Does sensitivity toothpaste actually work?
Yes, for mild cases. Potassium nitrate and stannous fluoride formulas block the nerve signal gradually, with several weeks of consistent use before the effect is noticeable.
Vayner Emergency Dentistry treats sensitive and hypersensitive teeth for patients across Reseda, Winnetka, Canoga Park, and Sherwood Forest. Dr. Jacob Vayner identifies exactly what is exposing the dentin before recommending a fluoride treatment, bonding, or a more involved restoration. Call (818) 405-8707 if sensitivity is not settling down on its own.
