Composite Restoration of Class II Cavities in Primary Molars With or Without Pulpotomy. Prospective 24 Month Clinical Trial.

NCT ID: NCT07243496

Last Updated: 2025-11-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-01

Study Completion Date

2026-05-01

Brief Summary

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After 24 months:

* Investigation of the success rate of Class II composite resin restorations in primary molars that have undergone pulpotomy.
* Comparison of Class II composite resin restorations in primary molars that have undergone pulpotomy with restorations of the same type in the same patient, in which no pulpotomy has been performed.

The null hypothesis of the study is that there is no statistically significant difference in the success of Class II resin restorations after their placement in primary molars, regardless of whether a pulpotomy has been performed or not.

Detailed Description

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Conditions

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Composite Restoration Primary Tooth Pulpotomy

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Class II composite restoration on primary teeth with pulpotomy

Group Type ACTIVE_COMPARATOR

Class II restoration after pulpotomy

Intervention Type PROCEDURE

The same dentist performs all restorations. All treatments are carried out using a rubber dam and the appropriate local anesthesia. After pulpotomy completion with a layer of MTA®, an intermediate layer of glass ionomer cement (Vitrebond Plus™) is placed before the final composite resin restoration. Class II resin restorations are performed after complete caries removal, placement of a partial matrix, etching with 37% phosphoric acid for 15 seconds, bonding with a 4th-generation adhesive agent (Prime n Bond NT, Dentsply™), and placement of composite resin (Filtek Universal™, 3M™).

Class II composite restoration on primary teeth without pulpotomy

Group Type ACTIVE_COMPARATOR

Class II restoration without pulpotomy

Intervention Type PROCEDURE

The same dentist performs all restorations. All treatments are carried out using a rubber dam and the appropriate local anesthesia. Class II resin restorations are performed after complete caries removal, placement of a partial matrix, etching with 37% phosphoric acid for 15 seconds, bonding with a 4th-generation adhesive agent (Prime n Bond NT, Dentsply™), and placement of composite resin (Filtek Universal™, 3M™).

Interventions

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Class II restoration after pulpotomy

The same dentist performs all restorations. All treatments are carried out using a rubber dam and the appropriate local anesthesia. After pulpotomy completion with a layer of MTA®, an intermediate layer of glass ionomer cement (Vitrebond Plus™) is placed before the final composite resin restoration. Class II resin restorations are performed after complete caries removal, placement of a partial matrix, etching with 37% phosphoric acid for 15 seconds, bonding with a 4th-generation adhesive agent (Prime n Bond NT, Dentsply™), and placement of composite resin (Filtek Universal™, 3M™).

Intervention Type PROCEDURE

Class II restoration without pulpotomy

The same dentist performs all restorations. All treatments are carried out using a rubber dam and the appropriate local anesthesia. Class II resin restorations are performed after complete caries removal, placement of a partial matrix, etching with 37% phosphoric acid for 15 seconds, bonding with a 4th-generation adhesive agent (Prime n Bond NT, Dentsply™), and placement of composite resin (Filtek Universal™, 3M™).

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Healthy children aged 3-9 years

* At least one pulpotomy in a carious primary molar requiring a Class II resin restoration
* At least one Class II cavity in a carious primary molar in the same patient that requires a resin restoration
* The teeth to be restored must not present clinical signs of pulp necrosis, such as pathological mobility or abscess/fistula
* Parents have signed an informed consent form
* The young patients return for evaluation at 12 and 24 months
* There is no exfoliation or extraction of the evaluated teeth before the 24-month period
Minimum Eligible Age

3 Years

Maximum Eligible Age

9 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Lygidakis Dental Clinic

OTHER

Sponsor Role lead

Responsible Party

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Nikos Lygidakis

Dr

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Lygidakis Dental Clinic

Athens, , Greece

Site Status

Countries

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Greece

Other Identifiers

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1495

Identifier Type: -

Identifier Source: org_study_id

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