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CompletedNCT00187850Updated Oct 18, 2016

The CAP-2 Trial: Effect of Direct Pulp Capping Versus Partial Pulpotomy

An interventional study of PP and DPC in Dental Pulp Exposure, sponsored by University of Copenhagen. Completed at 1 site in Denmark. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-10-18.

Sponsored by University of Copenhagen · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

CAP-2 Trial

Background: This trial is being done in conjunction with an ongoing clinical trial investigating stepwise excavation versus final excavation on deep caries lesions (The CAP-1 trial). The investigators lack systematic knowledge concerning the treatment of the exposed pulp and whether the capping of a pulp represents the same outcome as the partial removal of an additional 1-1.5 mm of the pulp tissue (partial pulpotomy).

Aim: The aim of the CAP-2 trial is in a randomised clinical trial to investigate the effect of direct pulp capping versus partial pulpotomy in patients who, from the beginning, have received either a final excavation or a stepwise excavation and where this intervention has led to the exposure of a vital pulp and/or the patient has not gained relief from tooth pain after excavation and placement of a temporary restoration.

Patients: Patients include consecutive patients with deep caries who have been participating in the CAP-1 trial, where the pulp exposure to a bleeding pulp is present and/or pain relief has not been obtained.

Design: The CAP-2 trial is a randomised patient- and observer-blinded multicenter trial, with two parallel intervention groups. Patients who fulfill the inclusion criteria will be centrally bloc-randomised in the Copenhagen Trial Unit, Copenhagen DK, and stratified by age and pain. The allocation ratio is 1:1.

The Interventions and Products: Patients are allocated for direct pulp capping or partial pulpotomy. The patients will not be informed about the results of the randomisation, i.e. the type of intervention. In both groups the patient receives a calcium hydroxide seal covering the exposure and a glass ionomer restoration. The final resin restoration is placed following 4 weeks.

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Conditions studied

  • Dental Pulp Exposure

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Keywords

  • Pulp capping
  • partial pulpotomy
  • Exposure of the pulp
03

In context

Dental Pulp Exposure

29 studies on the registry are indexed under Dental Pulp Exposure; 5 are open to participants now.

This study's planned enrollment of 120 is above the median of 53 across 27 interventional studies indexed under Dental Pulp Exposure.

Browse Dental Pulp Exposure studies →

Lead sponsor

University of Copenhagen is the lead sponsor of 450 studies on the registry; 61 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Persons participating in the CAP-1 trial, who have received a pulp exposure due to treatment or due to absence of pain relief.

Exclusion criteria

Exclusion Criteria:

  • The CAP-1-treated tooth has ongoing unbearable pain and/or disturbed night sleep.
  • Visible pus from the pulp.
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    PP

    Partial pulpotomy

    Procedure: PP

  • Other
    DPC

    Direct pulp capping

    Procedure: DPC

Interventions

  • ProcedurePP

    Partial pulpotomy

    Also known as: cvek´s pulpotomy

  • ProcedureDPC

    Direct pulp capping

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What researchers measure

Primary outcomes

  1. The survival of the tooth with vital pulp and without apical radiolucency. The x-ray evaluation and the clinical sensibility test are carried out by a blinded observer.

    Time frame: 1 year after inclusion in the CAP-2

Secondary outcomes

  1. Gain of pain relief

    Time frame: after 4 weeks

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Study locations

1 site
  • Copenhagen University
    Copenhagen, Copenhagen N 2200, Denmark
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References and documents

Publications

  • Bjorndal L, Reit C, Bruun G, Markvart M, Kjaeldgaard M, Nasman P, Thordrup M, Dige I, Nyvad B, Fransson H, Lager A, Ericson D, Petersson K, Olsson J, Santimano EM, Wennstrom A, Winkel P, Gluud C. Treatment of deep caries lesions in adults: randomized clinical trials comparing stepwise vs. direct complete excavation, and direct pulp capping vs. partial pulpotomy. Eur J Oral Sci. 2010 Jun;118(3):290-7. doi: 10.1111/j.1600-0722.2010.00731.x. PubMed 20572864 ↗
  • Bjorndal L, Fransson H, Bruun G, Markvart M, Kjaeldgaard M, Nasman P, Hedenbjork-Lager A, Dige I, Thordrup M. Randomized Clinical Trials on Deep Carious Lesions: 5-Year Follow-up. J Dent Res. 2017 Jul;96(7):747-753. doi: 10.1177/0022034517702620. Epub 2017 Apr 14. PubMed 28410008 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 18, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00187850
Lead sponsor
University of Copenhagen
Collaborators
National Health Insurance foundation, Dan Dental A/S, University of Aarhus, Göteborg University, Huddinge Faculty,Stockholm,Sweden, Uppsala FolkTandvård,Sweden, Malmö Dental school,Sweden
Responsible party
Lars Bjørndal (PhD, Dr.Odont, University of Copenhagen) — Principal investigator
First posted
Sep 16, 2005
Start date
Feb 2005
Primary completion
Mar 2007
Completion
Jun 2013
Last update
Oct 18, 2016

Study contacts

Lars Bjørndal, Ph.D.
study director · University of Copenhagen

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2016. You cannot join it, but the record below documents what was studied.

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