This trial is active, not recruiting.

Condition dental pulp exposure
Treatment pulp capping and partial pulpotomy
Sponsor University of Copenhagen
Collaborator National Health Insurance foundation
Start date February 2005
End date March 2007
Trial size 120 participants
Trial identifier NCT00187850, 10002


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.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification efficacy study
Intervention model parallel assignment
Masking single blind
Primary purpose treatment

Primary Outcomes

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

Gain of pain relief
time frame: after 4 weeks

Eligibility Criteria

Male or female participants at least 18 years old.

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

Additional Information

Official title The CAP-2 Trial: Effect of Direct Pulp Capping Versus Partial Pulpotomy on CAP-1 Patients: A Randomised, Patient - and Observer-Blinded Multicenter Trial
Trial information was received from ClinicalTrials.gov and was last updated in October 2009.
Information provided to ClinicalTrials.gov by University of Copenhagen.