Amoxicillin for tooth infection: Uses and benefits

amoxicillin for tooth infection
Medically reviewed by Dr. Ola Tarabzuni


Tooth infections are often treated with the antibiotic Amoxicillin. Bacteria can enter a tooth through a crack, cavity, or other dental trauma and cause an infection. The infection can spread to the gums and bones around the affected area if not treated on time. Antibiotics are not always the way to treat a tooth infection; sometimes, a root canal is needed to save the tooth alongside

Amoxicillin is frequently prescribed as a first-line antibiotic treatment. Antibiotics are only prescribed when required. This blog uncovers its uses and benefits through this insightful blog, shedding light on the efficacy of Amoxicillin in promoting dental health.

When should antibiotics be used for a tooth infection?

Antibiotics are recommended for tooth infections when the infection spreads to nearby teeth or jaw or if the patient has a weak immune system. Primary choices like Penicillin and Amoxicillin are preferred, but ensuring suitability for the specific bacteria is crucial. Alternative strategies, such as draining, tooth removal, or a root canal, are better in certain cases. Sometimes, a procedure is required along with antibiotic coverage.

If you need antibiotics for Amoxicillin, you can discuss it with one of our qualified experts online.

How do I take Amoxicillin for a tooth infection?

Adherence to the dentist’s or healthcare provider’s prescribed dosage and duration is crucial when using Amoxicillin for a tooth infection. The typical regimen is often either 500 mg thrice daily for 7 to 10 days or 875 mg twice daily for the same period. 

Completing the full antibiotic course, even if symptoms resolve early, is imperative to guarantee thorough infection treatment and minimize antibiotic resistance. In case of adverse effects during Amoxicillin intake, prompt consultation with the healthcare provider is essential for appropriate management.

Dosage of Amoxicillin

The prescribed Amoxicillin dosage for a tooth infection is contingent upon the infection’s severity. Commonly, it involves either 500 milligrams (mg) thrice daily for 7 to 10 days or 875 mg twice daily for the same period.

Duration of treatment with Amoxicillin

The duration of Amoxicillin treatment varies based on the severity of the condition, typically 7 to 10 days. Finishing the entire antibiotic course is crucial, even if symptoms improve. In case of any adverse side effects during Amoxicillin use, seeking guidance from the healthcare provider is essential for proper management.

Are you unable to see a dentist and have a tooth infection? Connect with our doctor for antibiotics.

What are the benefits of taking amoxicillin for a tooth infection?

Amoxicillin offers notable advantages for treating tooth infections, showcasing efficacy in infection treatment and pain relief. As a primary antibiotic choice, it inhibits bacteria growth, reducing pain as the infection is eradicated. Amoxicillin demonstrates broad effectiveness with fewer gastrointestinal side effects than alternatives, often resolving symptoms within days. However, it’s crucial to consult a healthcare provider if symptoms persist or worsen. Proper antibiotic use is essential, as not all infected teeth necessitate antibiotics for resolution.

How quickly does amoxicillin work for a tooth infection?

Amoxicillin typically resolves tooth infection symptoms within a few days. Treatment duration, lasting 7 to 10 days, depends on the condition’s severity. Completing the full antibiotic course is crucial, even if symptoms improve early. While antibiotics directly target the infection, they may indirectly alleviate pain as it resolves.

When should I see a doctor?

At the initial indication of a tooth infection, seeking prompt dental care is crucial to prevent its spread. If the infection has advanced, constituting a medical emergency, immediate treatment is imperative. 

Urgent signs include breathing difficulties, facial swelling, vision impairment, drooping eyelids, confusion, or a high temperature. In the presence of these symptoms, visiting the nearest hospital’s emergency department or scheduling an emergency dental appointment is recommended.

Do you have a toothache or gum swelling? Connect with our doctor for proper treatment.

FAQs about Amoxicillin for tooth infection

Can I use Amoxicillin for a tooth infection without a prescription?

No, it is not advisable to use Amoxicillin or any other prescription medication without a prescription from a licensed healthcare professional. A dentist or a doctor should prescribe antibiotics like Amoxicillin after a thorough examination to determine the appropriate dosage and duration of treatment. 
Self-medication can lead to inappropriate use incomplete treatment and may contribute to antibiotic resistance. Always consult a healthcare professional before using any prescription medication to ensure safe and effective treatment for a tooth infection.

Can children take Amoxicillin for tooth infections?

Amoxicillin is a commonly prescribed antibiotic for children, especially for treating infections like dental abscesses—the recommended dosages change according to age, with different amounts for different age groups.
Parents must adhere to the prescribed dosage and ensure the complete course of treatment is finished. Amoxicillin is generally considered safe for children, but informing the doctor about any allergies or existing health conditions before initiating the medication is essential.

Is it normal to experience diarrhea while taking Amoxicillin?

It is expected to experience diarrhea while taking amoxicillin, as it can disrupt normal gut bacteria. 
This side effect usually resolves a few days after stopping the antibiotic. Get medical help immediately if your diarrhea is terrible, stays for a long time, or comes with other scary symptoms like fever.
Hydration is essential; consulting a healthcare professional before using other medications for diarrhea is advised. In case of severe side effects like watery or bloody diarrhea, difficulty breathing, or swelling, immediate medical attention should be sought.

How can I tell if the Amoxicillin is working for tooth infection?

Monitoring the alleviation of symptoms like pain, swelling, and redness is crucial to assess the effectiveness of Amoxicillin in treating a tooth infection. While amoxicillin effectively eliminates tooth infections and may reduce pain, completing the antibiotic course is essential, even if symptoms improve prematurely. 
It is recommended to consult a healthcare provider for further evaluation and management if symptoms worsen. Immediate medical attention should be sought if any severe side effects are experienced.

Your Doctors Online uses high-quality and trustworthy sources to ensure content accuracy and reliability. We rely on peer-reviewed studies, academic research institutions and medical associations to provide up-to-date and evidence-based information to the users.

  • Hong, Liang, et al. “Association of amoxicillin use during early childhood with developmental tooth enamel defects.” Archives of pediatrics & adolescent medicine 159.10 (2005): 943-948.
  • Laisi, S., et al. “Amoxicillin may cause molar incisor hypomineralization.” Journal of dental research 88.2 (2009): 132-136.
  • Isiordia-Espinoza, M. A., et al. “Risk of wound infection and safety profile of amoxicillin in healthy patients which required third molar surgery: a systematic review and meta-analysis.” British Journal of Oral and Maxillofacial Surgery 53.9 (2015): 796-804.
  • Menon, R. K., et al. “Does the use of amoxicillin/amoxicillin–clavulanic acid in third molar surgery reduce the risk of postoperative infection? A systematic review with meta-analysis.” International journal of oral and maxillofacial surgery 48.2 (2019): 263-273.

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