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If your teeth look longer than they used to, the area near the gum line looks more yellow than the rest of the tooth, and iced drinks make you wince, you may have receding gums, also called gum recession. It develops slowly and rarely hurts, so it is easy to ignore. This article explains why gums recede, how to recognise it, whether lost gum comes back and what to change in your daily routine.

What are receding gums and how common are they?

Normally the gum margin hugs the neck of the tooth and covers the root. When that margin moves towards the root tip, root surface without a hard enamel layer is exposed. According to Cleveland Clinic, recession can be mild, moderate or severe and can affect one tooth or several.

Recession becomes clearly more common with age:

• Albandar and Kingman (1999): analysed 9,689 US adults aged 30–90 in the national NHANES III survey and estimated that 22.5% had at least one tooth surface with 3 mm or more of recession; prevalence and severity rose with age (PubMed).
• Cleveland Clinic: about 88% of people over 65 have recession on at least one tooth.

Why do gums recede? Common causes

Recession rarely has a single cause. Cleveland Clinic and Vinmec (a Vietnamese source) list the following:

• Gum disease and tartar: long-standing plaque and tartar cause inflammation that destroys supporting tissue, so the gum shrinks back. Vinmec considers this the most common cause.
• Brushing too hard, stiff bristles, scrubbing sideways.
• Thin gums, thin bone around the roots, crooked teeth: some people recede despite good hygiene because of genetics.
• Orthodontic treatment.
• Smoking or chewing tobacco: see how smoking affects your teeth.
• Grinding, a misaligned bite, lip or tongue piercings, gum injuries.

Does brushing too hard really cause recession?

The most frequently blamed cause has the weakest evidence. A systematic review by Rajapakse et al. (2007) examined 18 papers: 8 observational studies found an association between brushing frequency and recession, while 2 found none; brushing force, bristle stiffness and technique were also flagged as possible factors. No study met all quality criteria, and the authors concluded the data could neither confirm nor rule out a link (PubMed). Even so, brushing gently with soft bristles does no harm, which is why it remains standard advice.

Braces and receding gums

A review by Cadenas de Llano-Pérula et al. (2023) included 48 papers: 10 of 15 reported more recession in people who had orthodontic treatment, and 10 of 16 found more recession when front teeth were tipped forward. Thin gums or existing recession also raised the risk. The studies varied widely and had small samples (PubMed). If you are about to start braces, you can ask your orthodontist to assess your gum thickness first.

Signs of gum recession

• Teeth look longer, with a visible line between crown and root.
• Sensitivity to cold, heat, sweets or brushing.
• The triangular gaps between teeth widen and trap food.
• Red, swollen gums that bleed when brushing, a sign of accompanying inflammation.

Cleveland Clinic advises getting checked even without pain or sensitivity, because only a dentist can measure the recession and find the cause.

What happens when roots are exposed?

Exposed roots lack enamel protection, so they become sensitive easily; tips for relief are in sensitive teeth when brushing. They are also more prone to decay: Albandar and Kingman noted that recession is associated with root caries and destructive periodontal disease. According to Cleveland Clinic, untreated recession can lead to bone loss, loose teeth and eventually tooth loss.

Can receding gums grow back?

No. Cleveland Clinic states that receded gum tissue does not regrow; treatment aims to stop further recession and cover the root if needed. Depending on the cause, a dentist may offer:

• Scaling and root planing to clean below the gum line when gum disease is present.
• Bonding over the root, fluoride varnish or desensitising agents to reduce sensitivity.
• Orthodontics to move misaligned teeth into a position that is kinder to the gum.
• Gum graft surgery: tissue is usually taken from the palate, or a substitute material is used; Cleveland Clinic reports success rates above 90% and an average recovery of 1–2 weeks.

A Cochrane review by Chambrone et al. (2018) included 48 randomised trials of root coverage techniques. Connective tissue grafts combined with a coronally advanced flap gave slightly better results when both root coverage and more keratinised gum were needed, but the evidence was of low quality (PubMed). Which technique suits you is for a periodontist to decide after an examination.

Home care to stop gums receding further

The goal is to remove plaque without scrubbing already fragile gum. Vinmec advises brushing slowly and gently with the bristles angled along the gum line; zone-by-zone technique is covered in how to brush your teeth properly. Four habits to keep:

1. Choose a soft-bristled brush: manual or electric both work; Vinmec suggests replacing it about every 3 months, or sooner if the bristles splay.
2. No sideways scrubbing, no pressing hard: use short, light strokes; bristles that flatten within a few weeks mean you are using too much force.
3. Clean between teeth gently: set your water flosser to its lowest pressure, or ease floss down slowly instead of snapping it onto the gum.
4. See your dentist regularly: Cleveland Clinic suggests about every 6 months, or more often if advised.

With a water flosser, glide the stream along the gum line rather than aiming straight at an exposed root; how to choose a setting is explained in what water flosser pressure is right.

Inmax products for people with receding gums

For gums that have already receded, look for gentle vibration and a low starting pressure:

• M1: sonic toothbrush at 120–140 Hz, the lowest range among Inmax's M-series brushes; 5 modes including Sensitive; 1,200 mAh battery, USB-C charging, IPX7.
• M159: water flosser with 4 modes (Pulse/Soft/Normal/Strong) and 40–130 PSI; curved 256 g body, 300 ml tank.
• M149: the basic model of the M149 family, 40–130 PSI, 300 ml tank, 1,500 mAh battery that fully charges in about 4 hours; no stand or UV light.

These devices make gentle cleaning easier, but they do not make gums grow back. You can compare specifications or contact Inmax; shops and clinics interested in stocking them can read our dealer policy.

Frequently asked questions

Can receding gums grow back?

Not on their own. Controlling the cause stops further recession; covering the root again requires a gum graft.

Should I use a water flosser if my gums are receding?

Yes, on a low setting with the stream moving along the gum line. If you have just had a graft, ask your periodontist when you can resume.

Can an electric toothbrush make recession worse?

How you use it matters more than the type: soft bristles, let the brush do the work, no pressing.

Can sensitivity toothpaste cure receding gums?

No. It only eases sensitivity on exposed roots; receded gums still need a dentist's assessment.

This is general information about gum recession and does not replace an examination and advice from a periodontist.