Multicenter 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).

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).