Deep Caries Clinical Trial
— DECATOfficial title:
Multicenter Randomized Controlled Trial Comparing One-step Partial Caries Removal to Complete Caries Removal for the Treatment of Deep Carious Lesions in Permanent Teeth DECAT DEep CAries Treatment
This clinical trial is a national multicenter randomized controlled trial performed in
parallel groups aiming to validate a treatment that preserves pulp vitality of mature
permanent posterior teeth through partial removal of carious tissue and restoring tooth
structure using a simple filling in one session, thus delaying premature tooth aging.
Two successive randomizations will be performed (allocation ratio 1:1); firstly for the type
of excavation carried out (partial vs. complete caries removal) and secondly for the nature
of the adhesive used (antibacterial adhesive vs. non-antibacterial adhesive). The second
randomization will not be carried out for teeth requiring endodontic treatment after the
first randomization.
The study's primary objective will be to compare, at 1 year of follow-up, the efficacy
(binary success criteria) of partial caries removal versus complete caries removal in
occlusal or proximal deep lesions of mature permanent posterior teeth (bicuspids and molars
except third molars). Secondary objectives will include the comparison, at 1 year of
follow-up, of the efficacy (binary success criteria) of an antibacterial two-step self-etch
adhesive versus a traditional non-antibacterial two-step self-etch adhesive. Another
secondary objective will be to compare, at two and three years of follow-up, the efficacy of
partial versus complete caries removal.
The primary outcome is the success of the caries removal protocol at one year, measured
according to 5 FDI criteria, while the secondary outcome is the contribution of the
functional and biological dimensions of the 5 FDI criteria items to determining success or
failure of the treatment. The outcome of success will be the same for all objectives,
primary and secondary.
Status | Recruiting |
Enrollment | 464 |
Est. completion date | August 2020 |
Est. primary completion date | August 2017 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 8 Years to 80 Years |
Eligibility |
Inclusion Criteria: Randomization n°1 - Partial versus complete caries removal Patient-related criteria: - Patient consulting in one of the multicenter trial centers - Male and female aged 8-80 (inclusive), - Affiliated to a social security regimen - Able to tolerate necessary restorative procedures - Provide informed consent - Accepts the three-year follow-up period Tooth related criteria: - Mature permanent posterior tooth - Tooth with vital pulp according to pulp-sensitivity tests - Tooth with a deep (primary or secondary) at least proximal and/or occlusal carious lesion presenting a residual dentin thickness with no continuity between the carious cavity and the pulp chamber. - In case of proximal lesions, the proximal cervical limit must allow proper placement of a waterproof dental dam (confirmed by a bitewing X-ray radiograph) - Tooth requiring a direct partial restorative treatment. Randomization n°2 - Antibacterial vs. non antibacterial adhesive application Tooth has been assigned a treatment by randomization n°1. Exclusion Criteria: Randomization n°1 - Partial versus complete caries removal Patient-related criteria: - Person under guardianship, pregnant or nursing woman, - Risk of infectious endocarditis, - Patient who has an implanted Cardiac Pacemaker/Defibrillator - Patient with severe periodontal disease (pocket depth =5mm and/or mobility type IV), - Poor oral hygiene (abundance of soft matter within the gingival pocket and/or on the tooth and gingival margin = score 3 [Silness and Loe, 1964], - Allergy to any of the materials and/or anaesthetic used, - Uncooperative patients. Tooth related criteria: - Nocturnal pain causing insomnia, - Tooth suffering dentin hypersensitivity (sharp sudden pain of short duration pain arising from exposed dentin (erosion and/or gingival recession), typically in response to external stimuli (air blast hypersensitivity [Schiff et al., 1994], tactile hypersensitivity), - Sensitivity to axial or lateral percussion; - Radiolucent apical image, - Condensing osteitis, - Tooth having an external or internal resorption, - Tooth having suffered trauma, - Tooth with a carious cervical lesion, - Tooth with an occlusal wear associated to a dentine exposure, - Tooth supporting clasp of a removable partial denture (RPD). - Tooth with defects of mineralization that once the treated tooth could come into contact of the carried out restoration Randomization n°2 - Antibacterial vs. non antibacterial adhesive application - Tooth with pulp exposure after randomization n°1 requiring endodontic treatment (pulp exposure > 2 mm² and/or haemostasis not obtained). |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
France | Hôpital Estaing | Clermont Ferrand | |
France | Hôpital Albert Chenevier | Creteil | |
France | Cabinet Libéral | Grenay | |
France | Hôpital Charles Foix | IVRY SUR SEINE Cedex | |
France | CHU Lille | Lille | |
France | Service de consultations et traitements dentaires | Lyon | |
France | Hôpital de la Timone | Marseille | |
France | CHRU de Nantes | Nantes | |
France | CHU Nice | Nice | |
France | Cabinet Libéral | Paris | |
France | Groupe Hospitalier Pitié Salpétrière | Paris | |
France | APAH Rothschild- Garancière | PARIS Cedex 12 | |
France | Hopital Xavier Arnozan | Pessac | |
France | CHRU Rennes | Rennes | |
France | CHRU Toulouse | Toulouse |
Lead Sponsor | Collaborator |
---|---|
Hospices Civils de Lyon |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Probability of success in arm P (Partial Caries Removal) compared to arm C (Complete Caries Removal) using a composite criteria of success summarized as a binary success criteria (cf. description below) | Cases will be considered as successful if each of the 5 following criteria described by the World Dental Federation (FDI) present a score of 3 or less: Fracture of material and retention (item 5) Marginal adaptation (item 6) Radiographic examination (including apical pathologies) (item 9) Post-operative sensitivity and tooth vitality (item 11) Recurrence of caries (item 12) Criteria 5, 6 and 9 are functional criteria while criteria 11 and 12 are biological criteria. Considering a score of 4 or 5 as failure means that a re-intervention on the tooth (score 4) would be considered as a failure in the context of this study. Adverse events will be recorded and reported as general safety outcomes. |
one year of follow-up. | Yes |
Secondary | Contribution of the functional and biological dimensions of the five FDI criteria items | Assessment of the relative importance of each of the 5 FDI criteria in determining failure for both the primary outcome | At one year of follow-up. | Yes |
Secondary | Probability of success in arm P (Partial Caries Removal) compared to arm C (Complete Caries Removal) using a composite criteria of success summarized as a binary success criteria, at two and three years of follow-up. | same criteria as the primary outcome measure of efficacy (composite criteria summarized as a binary success criteria) | At two and three years of follow-up. | Yes |
Secondary | Probability of success after the use of an antibacterial adhesive compared to the use of a non-antibacterial adhesive using a composite criteria of success summarized as a binary success criteria, at one, two and three years of follow-up. | same criteria as the primary outcome measure of efficacy (composite criteria summarized as a binary success criteria) | At one, two and three years of follow-up. | Yes |
Secondary | Identification of predictive factors of clinical success from among the following list: presence of post-operative pain, age of patient, type of the carious lesion, location of the carious lesion (occlusal or proximal) and pulp exposure. | the dependent variable (clinical success) corresponds to the same criteria as the primary outcome measure of efficacy (composite criteria summarized as a binary success criteria) | At one, two and three years of follow-up. | Yes |
Secondary | Description of the Consequences of Failures per Treatment Arm | total number of visits, need for endodontic treatment, need for extraction | At one, two and three years of follow-up. | Yes |
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