Periapical periodontitis
MONDO:0004508Inflammation of the periapical tissue. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is periapical granuloma. Suppurative inflammation is periapical abscess.
171 clinical trials for this condition and its sub-types, 108 tagged with Periapical periodontitis itself.
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Sub-types of Periapical periodontitis
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Chronic apical periodontitis 55 trials
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Suppurative periapical periodontitis 12 trials
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Acute apical periodontitis 8 trials
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Periapical granuloma 3 trials
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Rotary bur vs piezo knife: which heals tooth bone better?
Disease control OngoingThis study compares two ways to remove infection at the tip of a tooth root: using a rotary bur (a small drill) or a piezoelectric unit (a vibrating tool). 124 adults with root infections will have surgery and then be followed for 12 months to see which method leads to better bon…
Sponsor: National and Kapodistrian University of Athens • Aim: Disease control
Last updated Sep 18, 2026 00:00 UTC
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New nanozyme treatment could revolutionize root canal disinfection
Disease control By invitation onlyThis study compares a new cleaning solution made from ferumoxytol nanozymes to the standard treatment for root canal infections. About 72 adults with infected teeth will receive either the new solution or the usual one during their root canal procedure. Researchers will measure h…
Phase 4 • Sponsor: University of Pennsylvania • Aim: Disease control
Last updated Sep 02, 2026 00:00 UTC
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New root canal sealer could save more teeth from infection
Disease control By invitation onlyThis study compares a new calcium silicate-based sealer to the standard resin-based sealer for root canals in molar teeth. About 136 adults aged 18-65 with infected molars will receive one of the two sealers. The goal is to see which material leads to better healing and fewer sym…
Sponsor: Ministry of Health, Kuwait • Aim: Disease control
Last updated Jul 24, 2026 00:00 UTC
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New tooth root sealer aims to boost healing and cut pain
Disease control PausedThis study tests a new heat-resistant calcium silicate-based sealer used during root canals in people with infected tooth roots (apical periodontitis). The sealer is applied with different filling techniques to see if it improves bone healing and reduces pain after treatment. Par…
Sponsor: Ain Shams University • Aim: Disease control
Last updated Jul 09, 2026 00:00 UTC
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Tooth infection study tests if extra dressing boosts root canal success
Disease control OngoingThis study looks at whether placing a calcium hydroxide paste inside a tooth between root canal appointments helps infected teeth heal better. About 110 adults with painful tooth infections will receive standard root canal treatment over multiple visits. One group gets the extra …
Sponsor: Aristotle University Of Thessaloniki • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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Sound waves and suction may improve root canal healing, study suggests
Disease control OngoingThis trial tests four methods of activating the cleaning liquid during root canal treatment in adults aged 20 to 40 with an infected lower first molar. The goal is to see which method helps the infection at the root tip heal best after 12 months. Participants receive one-visit ro…
Sponsor: Future University in Egypt • Aim: Disease control
Last updated Jun 27, 2026 12:32 UTC
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Could a plant extract beat standard root canal treatments?
Disease control OngoingThis study tests whether oleanolic acid, a natural plant compound, works better than standard medicines (calcium hydroxide and Ledermix) when placed inside a root canal. The goal is to reduce bacteria and inflammation in teeth with infection. Thirty-six adults with infected singl…
Sponsor: Mansoura University • Aim: Disease control
Last updated Jun 27, 2026 12:07 UTC
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Laser zaps tooth infections better than sonic cleaners?
Disease control OngoingThis study compares two methods to clean infected root canals during a single dental visit: laser-activated irrigation and sonic-activated irrigation. Sixty adults with chronic apical periodontitis (a tooth infection) will receive one of the two treatments. Researchers will measu…
Sponsor: University of Zagreb • Aim: Disease control
Last updated Jun 27, 2026 09:01 UTC
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New dental sealer could improve root canal healing
Disease control OngoingThis study compares two types of dental sealers used during root canal treatment: TotalFill (a bioceramic sealer) and AH Plus. The goal is to see which one leads to better healing of infections at the tooth root tip. 170 teeth from adults at a dental clinic in Singapore are being…
Sponsor: National University Hospital, Singapore • Aim: Disease control
Last updated Jun 27, 2026 07:58 UTC
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Which root canal motion hurts least? trial puts five techniques to the test
Symptom relief OngoingThis trial compares five different motion patterns used in root canal treatment to see which one causes the least pain afterward. Adults aged 18 to 65 with asymptomatic root canal needs will be randomly assigned to one of the five motion types. Pain levels and inflammatory marker…
Sponsor: Jordan University of Science and Technology • Aim: Symptom relief
Last updated Jul 15, 2026 00:00 UTC
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New study tests four rinse methods to ease root canal pain
Symptom relief OngoingThis study compares four different rinsing tools used after root canal treatment to see which one reduces pain the most. Fifty-two adults with an infected lower back tooth will be randomly assigned to one of four groups. They will rate their pain at several times over two days an…
Sponsor: Future University in Egypt • Aim: Symptom relief
Last updated Jun 27, 2026 13:01 UTC
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Tooth pain showdown: can saving the nerve beat root canal?
Symptom relief OngoingThis study compares two treatments for severe tooth pain: vital pulp therapy, which tries to save the tooth's nerve, and standard root canal treatment, which removes it. Researchers will measure pain after 24 hours and one week, and check healing at 6 and 12 months using AI to re…
Sponsor: Ain Shams University • Aim: Symptom relief
Last updated Jun 27, 2026 12:23 UTC
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Laser or ultrasound: which root canal method hurts less?
Symptom relief OngoingThis study tests two ways to clean a tooth during a root canal: laser-activated irrigation and passive ultrasonic irrigation. Researchers want to see which method leads to less pain and better quality of life afterward. 90 adults with infected or damaged permanent teeth are takin…
Sponsor: Chulalongkorn University • Aim: Symptom relief
Last updated Jun 27, 2026 09:10 UTC
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Could a common supplement improve root canal recovery?
Symptom relief OngoingThis study tests whether adding N-acetylcysteine (NAC) to standard root canal treatment can reduce pain and improve healing in people with infected, dead teeth. Forty adults with mature teeth and signs of infection around the root tip will receive either NAC or standard medicatio…
Phase 2 • Sponsor: Alexandria University • Aim: Symptom relief
Last updated Jun 27, 2026 08:07 UTC
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Root canal showdown: which sealer causes less pain?
Symptom relief OngoingThis study looks at two different materials used to fill root canals after infection. 64 adults with infected but painless teeth will get one of the two sealers. Researchers will track pain for a week and check healing with X-rays over time to see which works better.
Sponsor: Ankara Yildirim Beyazıt University • Aim: Symptom relief
Last updated Jun 27, 2026 08:07 UTC
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New mix might ease root canal pain faster
Symptom relief OngoingThis study tests whether adding a common mouthwash ingredient (chlorhexidine) to a standard root canal medicine (calcium hydroxide) helps reduce pain after treatment. 80 adults with infected front teeth will receive one of two mixtures. Pain levels are checked at 12, 24, and 48 h…
Sponsor: Aqsa Afzal • Aim: Symptom relief
Last updated Jun 27, 2026 08:00 UTC
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Root canal showdown: which paste eases pain best?
Symptom relief OngoingThis study tests two different pastes placed inside the tooth between root canal visits to see which one reduces pain and helps the bone heal better. Eighty adults with infected but painless front teeth will receive either Bio-C Temp or Metapaste. Pain is tracked for a week, and …
Sponsor: Ege University • Aim: Symptom relief
Last updated Jun 27, 2026 07:53 UTC
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10-Year tooth retention study: does this dental sealer deliver?
Knowledge-focused OngoingThis study checks how many teeth remain functional 10 years after root canal treatment using a sealer called Endomethasone N. Researchers will review records from 179 adults who had the treatment at least 5 years ago. The goal is to understand the long-term success and safety of …
Sponsor: Septodont • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:29 UTC
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Ozone water during root canals may reduce inflammation
Knowledge-focused OngoingThis study tests whether using ozone water during root canal treatment can reduce oxidative stress (a sign of inflammation) in the jawbone. Sixty adults with a single-rooted tooth and a silent infection will be randomly assigned to receive either ozone water or salt water as a fi…
Sponsor: KEZBAN MELTEM ÇOLAK • Aim: Knowledge-focused
Last updated Jun 26, 2026 18:43 UTC