Date Published: 26/04/2026

Gingivitis in children: What is it? Causes, signs, and treatment methods.

Gingivitis in children is a fairly common condition, but if not detected and treated promptly, it can affect daily activities and even damage permanent teeth later on. To better protect children’s oral health, let’s join Phuong Thanh Dental Clinic in exploring the causes and early signs of gingivitis in the article below.

What is gingivitis?

Gingivitis is an infection that occurs in the gum tissue of children, while other structures of the periodontal system such as the alveolar bone, periodontal ligament, and root cementum are not yet affected.

Gingivitis in children is typically divided into two main stages.

Stage 1

In the early stage, the child’s gums show mild swelling, redness, and are prone to bleeding, especially when brushing or upon contact. This is the “golden” time for intervention, as proper care and treatment can quickly reduce inflammation and allow full recovery without complications.

Stage 2

As the condition worsens, the gums not only become swollen, red, and prone to bleeding but also cause noticeable pain. The child may experience cheek swelling and bad breath, affecting daily activities. If plaque and bacteria are not removed promptly, gingivitis can lead to serious complications such as tooth decay, pulpitis, or periapical inflammation, causing long-term damage to the child’s oral health.

What causes gingivitis in children?

Gingivitis in children can result from various causes, including:

Poor oral hygiene

This is the main cause of gingivitis. When children do not maintain proper oral hygiene, food debris and bacteria accumulate over time, forming plaque. This plaque contains a large number of bacteria that adhere to teeth and gums, producing toxins that irritate and damage gum tissue.

Teething stage

Swollen and red gums during teething are common and temporary, especially when children begin to develop primary teeth (around 6 months of age). As teeth erupt, they put pressure on the gum tissue, causing swelling and redness.

Mechanical impact on teeth and gums

Children’s gums are soft and sensitive, making them prone to injury. Actions such as chewing hard foods or habits like nail-biting can cause gum swelling, redness, and even pain.

Herpes virus infection

In children aged 2–5 years, gingivitis may be caused by a Herpes virus infection leading to acute stomatitis. After an incubation period of about one week, children may develop blisters on the cheeks, tongue, and gums, resulting in ulcers, pain, difficulty swallowing, and loss of appetite.

Signs of gingivitis in children

Most cases of gingivitis in children present the following signs:

  • Swollen gums that bleed easily, especially during brushing.
  • Changes in gum color, which may appear pale or darker than normal and less vibrant.
  • Appearance of plaque or unusual white spots on the gums.
  • Bad breath caused by inflamed gums, sometimes accompanied by pus.
  • Ulcers inside the cheeks and gum areas, causing discomfort.
  • Swelling at the gum line; over time, it may lead to gum recession and loose teeth.

Complications of gingivitis in children

If not detected and treated promptly, gingivitis in children can negatively impact oral health and daily life. It often causes pain and discomfort when eating, leading to poor appetite and affecting overall health. Bleeding gums may make children afraid to brush their teeth, resulting in poorer oral hygiene. Additionally, gingivitis can cause bad breath due to bacterial buildup, affecting communication. If prolonged, it may increase the risk of tooth decay, damage supporting tissues, affect the development of permanent teeth, and even progress to periodontitis, leading to gum recession, loose teeth, and early tooth loss.

How to treat gingivitis in children

Home treatment methods

If not detected and treated promptly, gingivitis in children can negatively impact oral health and daily life. It often causes pain and discomfort when eating, leading to poor appetite and affecting overall health. Bleeding gums may make children afraid to brush their teeth, resulting in poorer oral hygiene. Additionally, gingivitis can cause bad breath due to bacterial buildup, affecting communication. If prolonged, it may increase the risk of tooth decay, damage supporting tissues, affect the development of permanent teeth, and even progress to periodontitis, leading to gum recession, loose teeth, and early tooth loss.

Medication treatment

In cases where children have gingivitis with pus and bleeding, in addition to cleaning and removing plaque, the dentist may prescribe oral antibiotics. The goal is to control and eliminate harmful bacteria while preventing the infection from spreading.

Plaque and tartar removal

This is an essential step in treating gingivitis in children, helping to remove plaque, tartar, and accumulated bacteria both on the tooth surface and beneath the gums. During the procedure, the dentist may combine laser technology to clean the root area, limit tartar formation, and prevent bacteria from continuing to accumulate and cause inflammation.

Treatment of gingivitis in children at Phuong Thanh Dental Clinic

At Phuong Thanh Dental Clinic, gingivitis treatment for children is carried out through a safe, gentle process tailored to each age group. Dentists conduct thorough examinations to determine the severity of the condition and provide the most effective treatment plan.

For mild cases, children will undergo plaque and tartar removal—the main causes of gingivitis. At the same time, dentists provide detailed guidance on proper oral care at home, including correct brushing techniques and the use of dental floss to clean between teeth.

For more severe cases with signs of swelling, pain, or infection, dentists may recommend additional supportive measures such as specialized mouthwash solutions or appropriate medications to reduce inflammation and effectively control bacteria.

In addition to treatment, Phuong Thanh Dental Clinic also emphasizes nutritional counseling, encouraging children to limit sugary and sticky foods while increasing the intake of green vegetables and vitamin-rich fruits to improve gum health.

Regular check-ups every 6 months are especially important to monitor children’s oral health, detect problems early, and prevent the recurrence of gingivitis, ensuring a healthy smile.

PHUONG THANH DENTAL CENTER

Sa Dec Branch: 483 Hung Vuong, Cai Son Hamlet, Sa Dec Ward, Dong Thap Province.

Hotline: 02773 95 6868

Cao Lanh Branch: 783 Pham Huu Lau, Cao Lanh Ward, Dong Thap Province (Dong Thap University Campus)

Hotline: 02773 95 6869

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