Adults · Risk factors
Risk factors for tooth loss
After 25, gum disease overtakes decay.
Apart from poor oral hygiene, a handful of risk factors decide whether adults keep their teeth. Most are down to choices — which means most are within your control.
After the age of 25, you are more likely to lose teeth to gum disease than to decay. Beyond poor oral hygiene, the main risk factors are:
- Genetics — one of only two you can’t change.
- Smoking — raises the chance of early tooth loss by three to seven times.
- Diabetes — roughly triples the risk (type 1 is inherited; type 2 is largely lifestyle).
- Stress — affects your gums, at any age.
- Obesity, poor nutrition and a sedentary lifestyle — all raise the risk.
Only genetics and type 1 diabetes are inherited — the rest follow from how we live. And here’s the encouraging part: everything that harms your gums also shortens your life, so improving your gum health improves your general health too. What better motivation could you have?
Smoking
None of my patients ever regretted not starting smoking earlier. You’re seven times more likely to lose your teeth early, and smoking compromises any dental work — implants included. It also causes many cancers, heart disease and strokes. Most people stop straight after one of those events. Why wait?
Oral cancer
Caught early, oral cancer may mean losing a few teeth and a reasonable outlook; within six months it can progress to losing part of the jaw and a grim prognosis. If a mouth ulcer hasn’t begun to heal in two weeks, get it checked.
A word on mouthwash
Some mouthwashes reduce gum inflammation, but they treat the symptom, not the cause — better brushing does that. Used without your dentist’s advice they can stain teeth. Fluoride mouthwashes are useful for a dry mouth or poor hygiene — use them at a different time to brushing, and remember to spit but not rinse after toothpaste.
Common questions
Tooth loss — your questions answered
Why do adults lose teeth after 25?
Gum disease overtakes decay as the main cause — and its biggest risk factors are lifestyle-related.
How much does smoking raise the risk?
By three to seven times, and it undermines dental work such as implants.
Is bleeding gums something to worry about?
It can reflect a wider health problem. Mouthwash may mask it, but better cleaning tackles the cause — see your dentist.
Does improving my gums help my general health?
Yes — the same factors that harm gums shorten life, so healthier gums tend to mean a healthier, longer life.
Your gums, your general health
Look after your gums and you look after your whole body.