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 type | Interventional |
|---|---|
| Ages | 12 Years and up |
| Sex | All |
| Enrollment | 93 (estimated) |
| Sponsor | National University Hospital, Singapore Academic / other |
| Locations | 1 site (Singapore) |
| Status | Recruiting |
| Started | July 16, 2025 |
| Main results expected | July 2027 |
| Study ends | July 2027 |
| Registry record updated | November 21, 2025 |
| Trial ID | NCT07242742 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
- Study coordinator: Victoria Yu
- Email: denyshv@nus.edu.sg
- Phone: (65) 9004 1044
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Pulpal inflammation and full pulpotomy outcomes in deeply carious mandibular molars
This study tests whether levels of inflammatory markers IL-1β and IL-6 in deeply decayed mandibular molars predict the success of a full pulpotomy in adults with moderate to severe pulpitis.
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Partial pulpotomy in mature lower molars with SIP using calcium hypochlorite vs sodium hypochlorite
This trial tests whether washing the exposed pulp with calcium hypochlorite or with sodium hypochlorite during partial pulpotomy in adults helps healing and reduces pain.
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Direct pulp capping for deep and extremely deep caries in mature molars with reversible pulpitis
This study tests whether direct pulp capping works similarly for deep versus extremely deep caries in adult, mature mandibular molars with reversible pulpitis.
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Buffered vs conventional local anesthesia for pain and anxiety during dental treatment in children with pulpitis
This study tests whether buffered local anesthesia reduces pain and anxiety for school-aged children needing dental treatment for pulpitis.
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Direct pulp capping in lower molars with side (proximal) versus top (occlusal) cavities: does the cavity location matter?
This research will test whether direct pulp capping works as well for lower molars with side (proximal) cavities as for those with top (occlusal) cavities in people aged 15–40 who have reversible pulpitis.
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Using pulpal blood biomarkers to predict success of vital pulp therapy in symptomatic teeth
This trial will test whether measuring metabolic biomarkers in pulpal blood at the time of carious pulp exposure can help predict 12-month success of vital pulp treatment in people aged 16–50 with symptomatic deep caries.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.