A tooth can start to look longer without the tooth itself changing at all. Usually, the gum around it has moved back. If you are wondering, why do gums recede, the answer is not always simply that you have brushed too hard. Gum recession can result from gum disease, brushing habits, tooth position, genetics and everyday factors such as clenching.
Receding gums are common, but they deserve attention. Gum tissue does not usually grow back on its own, and exposed tooth roots can become sensitive and more vulnerable to decay. The good news is that early, tailored care can often stop recession progressing and help you feel more comfortable and confident about your smile.
Why do gums recede?
Gums recede when the soft tissue that surrounds a tooth gradually pulls away or is lost. This exposes more of the tooth, and sometimes the root surface beneath the enamel. It may affect one tooth or several, and it can develop so slowly that it is only noticed in photographs, when brushing, or during a routine dental examination.
The underlying cause matters. Treatment for recession caused by inflammation is different from treatment for recession around a crowded or prominent tooth, for example. A dental examination is the best way to identify what is happening in your mouth rather than relying on appearance alone.
Gum disease
Gum disease is one of the most significant causes of recession. Plaque is a sticky film of bacteria that builds up on teeth. If it is not removed thoroughly, it can irritate the gums, causing redness, swelling and bleeding. Over time, more advanced gum disease can affect the supporting bone and tissues around the teeth, allowing the gums to recede.
Gums that bleed when you brush or clean between your teeth should not be ignored. Bleeding is often an early warning sign of inflammation, even when there is no pain. Professional hygiene care, together with a consistent routine at home, can remove the build-up that brushing alone cannot reach and help bring gum inflammation under control.
Brushing with too much pressure
Keeping your teeth clean is essential, but more force does not mean a better clean. Scrubbing side to side with a hard toothbrush or pressing too firmly can wear away gum tissue, particularly around the canine teeth and premolars. It can also wear the tooth surface near the gumline.
A soft toothbrush, held gently at the gumline, is usually the right choice. Electric toothbrushes with pressure sensors can be useful for people who find themselves brushing too firmly. Your dentist or hygienist can demonstrate a technique that cleans effectively without causing unnecessary trauma.
Tooth position and a thin gum type
Sometimes a tooth sits slightly outside the natural curve of the jaw, or the bone and gum covering it are naturally thin. This can make recession more likely, even with excellent oral hygiene. Crowding, bite changes and previous orthodontic treatment can all influence how forces are distributed around the teeth, although orthodontic treatment does not automatically cause gum recession.
Genetics also play a part. Some people naturally have thinner gum tissue and may be more susceptible to recession. This is not a reflection of poor care. It simply means regular monitoring is especially worthwhile.
Clenching, grinding and bite pressure
Clenching or grinding your teeth can place heavy forces on the teeth and their supporting tissues. Many people do this during sleep and may not realise it. Signs can include headaches, jaw tension, worn tooth edges, cracked teeth or sensitivity.
Grinding is rarely the only reason gums recede, but it can contribute where the gums are already thin or inflamed. A carefully made night guard may help protect teeth from grinding forces, while an assessment can identify whether the way your teeth meet needs further attention.
Smoking, vaping and oral piercings
Smoking is strongly associated with gum disease and can mask a key warning sign: bleeding. The gums may look less inflamed than they are, while disease continues beneath the surface. Stopping smoking supports gum health as well as general health.
Vaping is not a harmless substitute for gum tissues. Nicotine can affect blood flow and healing, and more research is continuing into the longer-term effects. Lip or tongue jewellery can also repeatedly rub against gums and teeth, causing localised recession or damage in the area it contacts.
Signs that gum recession needs a check-up
A lower gumline is not the only sign. You may notice sensitivity to cold drinks, sweet foods or brushing, as root surfaces are less protected than enamel. Teeth may appear longer, small notches can develop near the gumline, or dark triangular spaces may become visible between teeth.
Bad breath, bleeding, swelling, loose teeth or a change in the way your bite feels need prompt assessment, particularly if they occur alongside recession. Recession can be painless in its early stages, so regular examinations remain valuable even when everything feels normal.
Can receding gums be treated?
While gum tissue will not usually regenerate by itself, treatment can protect what remains, address the cause and, in some cases, improve coverage of exposed roots. The right approach depends on the severity of recession, the health of the supporting bone, your symptoms and the appearance you would like to achieve.
For mild recession, the focus may be on prevention: improving plaque removal, adapting your brushing technique, managing grinding or scheduling hygiene appointments. Sensitive root surfaces can sometimes be protected with fluoride treatments, desensitising products or tooth-coloured restorations where there is wear or a cavity.
If gum disease is present, it needs to be stabilised first. This may involve professional cleaning below the gumline and a carefully planned maintenance programme. Treating the inflammation is essential before considering cosmetic improvements or more advanced gum treatment.
Where recession is more pronounced, causing persistent sensitivity or affecting the smile, a dentist may discuss referral for specialist periodontal treatment. Gum grafting uses tissue to reinforce or cover an exposed root in suitable cases. It is a precise procedure, and results depend on the tooth position, tissue type, oral hygiene and the cause of recession. It is not necessary for everyone, but it can be a valuable option when clinically appropriate.
How to help prevent further recession
The most effective prevention is gentle, consistent care rather than aggressive cleaning. Brush twice daily with fluoride toothpaste and a soft-bristled toothbrush, using light pressure. Clean between your teeth daily with the interdental brushes or floss recommended for you, as each mouth has different spaces and needs.
Keep regular dental and hygiene appointments so that changes can be measured over time. Do not stop cleaning an area because it bleeds - instead, ask for advice. With the correct technique, bleeding caused by plaque-related inflammation often improves as the gums become healthier.
If you smoke, reducing and stopping can make a meaningful difference to your gum health. If you wake with a tight jaw, have worn teeth or suspect grinding, arrange an assessment rather than buying a generic guard. A poorly fitting appliance may not address the problem properly.
When to seek advice
Book a dental appointment if you have noticed a change in your gumline, persistent sensitivity or bleeding gums. There is no need to feel embarrassed: recession is a frequent concern, and identifying the cause early gives you more options to protect your teeth.
At Lynwood Dental & Implant Centre, care can be planned at your pace, with clear explanations of what is causing the change and what may help. Looking after receding gums is less about seeking a quick fix and more about preserving the healthy foundations of your smile for years to come.