Comparison of Scanning With and Without Rubber Dam for Overlay Restorations

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-01-30

Study Completion Date

2023-03-05

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The use of rubber dam when performing adhesive restorations improves the quality of the treatment. The widespread use of this type of restorations makes it increasingly necessary to use this type of isolation of the operative field. At the same time, the use of CAD/CAM systems in dentistry has recently become more widespread, which means that chairside systems are being used more and more frequently. Given that in indirect restorations it is necessary to place the rubber dam at the time of cementation, it has been proposed to take optical impressions of the preparation with the rubber dam already in place. For this it is necessary to have previous records that are cut out and rescanned. Since there are authors who have described that rescanning can cause defects in the meshes, in this work we try to compare both types of scanning in a specific type of restorations, the overlays. For this purpose, scans of the tooth preparation with and without rubber dam are taken, and a random decision is made on the basis of which scan the restoration is made. Then it is taken to the mouth and the marginal fit, contact points and occlusion of the restoration are evaluated. The results of the group made from the scan without dam are compared with those of the group made from the scan with dam. The two scans of each case are also compared to evaluate the differences.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

In Vivo Comparative Study of Two Different Rubber Dam System in Dental Practices

NCT05554757

Tooth Decay

UNKNOWN NA

Influences of Gingival Cord Retractor in Retention Rate of Non-carious Cervical Lesions Restorations.

NCT02961049

Dental Wear Tooth Wear

UNKNOWN NA

Full Occlusal Rehabilitation for Patients With Severe Tooth Wear Using Indirect Composite Restorations

NCT02957734

Tooth Wear Dental Restoration Failure Dental Restoration Wear

UNKNOWN PHASE4

Cut-out-Rescan Procedure Under Different Rubber-Dam Isolation

NCT06893263

Trueness Intraoral Scanner Rubberdam +1 more

COMPLETED NA

Evaluation of the Clinical Performance of Different Composite Materials in Class III and IV Restorations.

NCT07343063

Dentin Caries

RECRUITING

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

1. Introduction: The use of rubber dam in restorative dentistry is important in order to improve the quality of restorations. The incorporation of CAD/CAD systems has led to an increase in the use of chairside techniques. In this work we intend to study in vivo to what extent the optical impressions obtained with rubber dam are equivalent to those taken without rubber dam. For better standardization, overlay restorations are studied.
2. Aims: To compare overlay restorations obtained from a scan with rubber dam placed versus restorations of the same type obtained with a scan without rubber dam.
3. Material and methods:

(a) Number of patients to be treated: 30. b) Number of visits per patient: 1 c) Brief description of the different techniques used in the study, authorized and validated in the literature (3-5 lines). The use of overlay restorations is widely validated in the literature. In the digital era, rubber dam and non-rubber dam impressions are described in the literature and are used interchangeably. As there is no clinical evidence that both techniques have the same clinical efficacy, we decided to perform this in vivo comparison study.

d) Benefits and harms for the patient of participating in the study (3-5 lines). Participation in the study does not involve any harm to the patient. It is all performed in the same working time, with identical materials and identical clinical technique. It does not bring any particular benefit to the patient. It is explained to the patient that his/her participation contributes to the improvement of scientific knowledge without physical, economic or material cost.

e) Alternative treatment in case the patient does not wish to participate in the clinical study (3-5 lines). The same treatment is given whether the patient participates or not. The patient is informed that an overlay is required, the possible complications of this treatment are explained to him/her, and if he/she accepts, he/she is asked if he/she would object to participate in the study. Participation involves consenting to the analysis of the scans and the final evaluation of the restoration.

f) Treatment to be carried out in the event of complications arising in the patient, once the clinical study has begun (3-5 lines). The clinical study is performed in a single visit and is independent of possible complications of the restoration or the tooth.

g) Material necessary to carry out the study (3-5 lines). Intraoral anesthesia, milling burs, a Primescan intraoral scanner, rubber dam, W8A clamp, two-step adhesive, 5% hydrofluoric acid, silane, clamp holder, dam drill, glycerin are required. No specific material is required for the study with respect to that required for a patient who does not wish to participate in the study.
4. Evaluation of experimental and statistical results (3 lines). The sample was calculated by means of G power 3 version 3.1.9 software, 80% power and alpha=0.05. A sample of 30 was determined. The Kappa index will be used to evaluate the concordance between the two evaluators, interpreting the results with the Landis and Koch concordance table. Pearson's test will be used to evaluate the fit, occlusal contacts, interproximal contact points and choice of the best impression.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Crowns

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Tooth to be restored are randomly assigned to on of two groups. In one impressions are taken before placing the rubber dam and in the second impressions are taken after placing the rubber dam.

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

The caree provider takes two impressions and the investigator selects one of them for crown manufacturing.

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Before rubber dam

Impression taken before rubber dam placement is used for crown manufacturing

Group Type ACTIVE_COMPARATOR

Rubber dam

Intervention Type DEVICE

Intraoral impressions can be taken with rubber dam in place. The care provider will take two impressions, one with the rubber dam in place and one without. The investigator will randomly chose one of the two impressions for crown manufacturing, and the crown will be delivered by the care provider blindly

After rubber dam

Impression taken after rubber dam placement is used for crown manufacturing

Group Type EXPERIMENTAL

Rubber dam

Intervention Type DEVICE

Intraoral impressions can be taken with rubber dam in place. The care provider will take two impressions, one with the rubber dam in place and one without. The investigator will randomly chose one of the two impressions for crown manufacturing, and the crown will be delivered by the care provider blindly

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Rubber dam

Intraoral impressions can be taken with rubber dam in place. The care provider will take two impressions, one with the rubber dam in place and one without. The investigator will randomly chose one of the two impressions for crown manufacturing, and the crown will be delivered by the care provider blindly

Intervention Type DEVICE