Use of enamel-dentin adhesive in the restoration of defects in the cervico-root region of teeth

The incidence of cervical defects was epidemilogically studied on a sample of 60 teeth with periodonatl disease and cervical defects which were classified in three groups. Also, the control clinical prospective study comprised 44 esthetic external restorations made of monocomponent resin (Heliosit and Visio-Disperse) and bicomponent resin (Silar and Dentosit) in the cervico-radical region of the vestibular surface od teeth with periodontal disease. Enamel-dentin adhesive was used as a bonding agent. Two parameters were followed up: 1. restoration margin staining, and 2. retentional state of restoration. The studies have shown that: a) the cervico-radical defects affecting both the dentin-coronary third of the root and the dentin-cervical third of the crown were found in 64% of subjects with periodontal disease and cervical defects requiring application of monocomposite resin in the same percentage, b) enamel-dentin adhesive+ composite restorations made of monocomposite resin showed changes in both mentioned parameters in a significantly lower percentage being of markedly smaller intensity than those made of bicomposite resins, and c) bonding capacity of enamel-dentin adhesives is an important additional factor of retention of esthetic restorations made in the cervico-radial dental region.