Clinical trial Recruiting at 1 site Interventional Ages 12 and up

Pulpotomy versus root canal treatment for extremely deep caries

Official title: Effectiveness of Pulpotomy vs. Root Canal Treatment in Extremely Deep Caries: A Randomized Controlled Trial Conducted in Supervised Undergraduate Clinics

Run by National University Hospital, Singapore · NCT07242742 · Data updated 2026-11-12

This study tests whether full pulpotomy works as well as root canal treatment for people aged 12 and older with extremely deep caries treated in a university dental clinic.

Quick facts

Study typeInterventional
Ages12 Years and up
SexAll
Enrollment93 (estimated)
SponsorNational University Hospital, Singapore
Academic / other
Locations1 site (Singapore)
StatusRecruiting
StartedJuly 16, 2025
Main results expectedJuly 2027
Study endsJuly 2027
Registry record updatedNovember 21, 2025
Trial IDNCT07242742 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are people aged 12 or older with a mature permanent tooth with extremely deep caries that is restorable, responds to sensibility testing, and can be isolated with a rubber dam.

Probably not a fit

Patients with non‑vital teeth, apical periodontitis or radiolucency, uncontrolled purulence or excessive bleeding, calcified or highly aberrant canal anatomy, or teeth that cannot be adequately isolated are unlikely to benefit from this approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized interventional trial will enroll patients with mature permanent teeth and extremely deep caries whose pulps are confirmed vital by bleeding on entry. After complete caries excavation under rubber dam isolation, eligible teeth are randomized to receive either full pulpotomy or conventional root canal treatment performed by senior dental students under supervision. Primary outcomes are clinical and radiographic success or failure at 12 months, with standardized follow-up visits and imaging; patient‑reported outcomes will also be recorded. The aim is to see if favorable pulpotomy results seen in specialist centers can be replicated in a primary care/teaching clinic setting to inform broader practice.

Why it matters

Potential benefit: If successful, the trial could offer patients a less invasive, faster, and tooth‑preserving alternative to root canal treatment that is feasible in general dental practice.

How similar studies have gone: Previous trials in specialist settings have reported promising outcomes for pulpotomy versus RCT, but those results have limited generalizability to general dental practice.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged 12 years or older
* Mature maxillary or mandibular permanent tooth with extremely deep restorations/caries penetrating the entire thickness of dentine on the radiograph without a radiopaque zone separating the lesion from the pulp (Bjorndal et al., 2019)
* Tooth may or may not be symptomatic at the time of recruitment but must be responsive to cold and EPT sensibility testing
* Tooth is restorable and can be adequately isolated during treatment
* One tooth per patient

Exclusion Criteria:

* Teeth with difficult access and unpredictable isolation using a rubber dam
* Teeth aberrant root canal morphology, extreme root curvatures (\>30 degrees), calcified canals/sclerosed pulp
* Teeth indicated for elective root canal treatment for restorative purposes
* Teeth with apical periodontitis
* Presence of apical radiolucency
* Any evidence of purulence or excessive bleeding that cannot be controlled with a cotton pellet with 1.25% hypochlorite for 10 minutes
* History of trauma to the tooth
* Teeth with active periodontal disease (pocket depth \>5mm)
* Patients with complex medical histories that may affect their caries experience and healing ability (immunocompromised, radiotherapy etc.)
* Patients who are pregnant or breast-feeding
* Patients who are unable to consent

Where it's running

  • National University Centre For Oral Health Singapore (NUCOHS)
    Singapore, Singapore
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.