By Dr. Rohan Deshpande, MDS Prosthodontics and Crown and Bridge, Orion Dental Specialities, Kothrud, Pune.
Noticing a dark spot, sudden sensitivity, or a persistent ache in your tooth can instantly trigger concern about a cavity. If you are worried, take comfort in knowing that tooth decay is one of the most common oral health issues, and it is highly treatable, especially when caught early.
This guide breaks down what causes decay, the key signs to watch for, its stages, the treatments, and simple steps for prevention.
I am Dr. Rohan Deshpande, MDS in Prosthodontics and Crown and Bridge, at Orion Dental Specialities in Kothrud, here to help you keep your smile healthy and comfortable.
What Is Tooth Decay?
Tooth decay happens when bacteria in the mouth feed on sugars and produce acids that slowly wear away the hard outer layer of the tooth, the enamel. Over time this creates a small hole, which is called a cavity.
What Causes Cavities?
A few everyday things raise the risk of decay.
- Frequent sugary or starchy foods and drinks, especially between meals.
- Not brushing and cleaning between the teeth thoroughly.
- Sticky foods that cling to the teeth.
- A dry mouth, which means less protective saliva.
- Deep grooves in the back teeth that trap food, and sipping sweet drinks through the day.
Signs You May Have a Cavity
A few signs are worth watching for, though early cavities often have no symptoms at all.
- Sensitivity to hot, cold, or sweet foods and drinks.
- A toothache or discomfort when biting.
- A visible hole, pit, or dark spot on the tooth.
- Food repeatedly getting trapped in one spot.
- Persistent bad breath or a bad taste.
The Stages of Tooth Decay
Decay progresses in stages, and catching it early keeps treatment simple.
- Early white spot. The very first sign, which can sometimes be halted or reversed with fluoride and better cleaning.
- Cavity in the enamel. A hole has formed and needs a filling.
- Decay into the dentine. The softer layer beneath, which usually needs a larger filling.
- Reaching the pulp. Decay reaches the nerve, causing pain and usually needing a root canal.
- Abscess. An infection at the root, which needs a root canal or removal.
How Is Tooth Decay Treated?
Treatment depends entirely on the stage. An examination and an X-ray show exactly how far the decay has gone.
Note: These are representative 2026 Pune ranges for guidance only. They are not Orion’s fixed fees. For a figure specific to you, please book a consultation.
| Stage | Typical Treatment | Representative 2026 Pune Range |
| Early white spot | Fluoride and better cleaning | Often part of a routine visit |
| Cavity in enamel or dentine | A filling | 1,000 to 3,500 |
| Decay reaching the nerve | Root canal, usually with a crown | 8,000 to 20,000 |
| Tooth too damaged to save | Removal, then replacement | Worked out at consultation |
Can Tooth Decay Be Reversed?
Only at the very earliest stage, when decay shows as a white spot, can it sometimes be halted or reversed with fluoride and good cleaning. Once a cavity has formed a hole, it will not heal on its own and needs treatment. This is why regular checkups matter, so decay is caught early.
How to Prevent Cavities
- Brush twice a day with a fluoride toothpaste, and clean between your teeth daily.
- Cut down on how often you have sugary snacks and drinks, and choose water between meals.
- Do not put a child to bed with a sweet drink.
- Have regular dental checkups so any decay is caught early.
- Ask about fluoride application and sealants, which give children extra protection.
What Happens If You Ignore It?
Decay only gets worse if left. A small cavity that could have been a simple filling can grow until it reaches the nerve and needs a root canal, or damages the tooth beyond saving. The earlier it is caught, the simpler and more affordable the treatment.
Payment Options
At Orion Dental Specialities, we offer direct clinic instalment plans. Talk to us during your consultation.
Frequently Asked Questions
Q: What are the signs of a cavity?
Common signs include sensitivity to hot, cold, or sweet things, a toothache, a visible hole or dark spot on the tooth, food getting trapped, and sometimes bad breath. Some early cavities have no symptoms, which is why regular checkups matter.
Q: Can tooth decay be reversed?
Only at the very earliest stage, when it shows as a white spot, decay can sometimes be halted or reversed with fluoride and better cleaning. Once a cavity has formed a hole, it will not heal on its own and needs a filling.
Q: How is tooth decay treated?
It depends on how far it has gone. Early decay may just need fluoride, a cavity needs a filling, decay that reaches the nerve needs a root canal, and a tooth that is too damaged may need removing. An examination and X-ray show which applies.
Q: Does treating a cavity hurt?
No. The tooth is fully numbed, so treatment is virtually pain free. Treating a cavity early, while it is small, keeps things simple and comfortable and avoids bigger problems later.
Q: How can I prevent cavities?
Brush twice a day with a fluoride toothpaste, clean between your teeth daily, cut down on frequent sugary snacks and drinks, and have regular dental checkups. For children, fluoride and sealants can give extra protection.
Conclusion
To sum up: tooth decay is common and preventable, it is far simpler to treat when caught early, and good habits plus regular checkups keep cavities away. If something feels off, book a checkup at Orion Dental Specialities in Kothrud and we will help you keep your smile healthy.
Medical disclaimer: All price ranges on this page are representative 2026 Pune figures based on market observation and are for guidance only. They are not Orion Dental Specialities’ fixed fees. Treatment depends on an individual clinical assessment. Please book a consultation for advice specific to you.
About the author: Dr. Rohan Deshpande holds an MDS in Prosthodontics and Crown and Bridge and practises at Orion Dental Specialities in Kothrud, Pune.
