Clinical Performance of Bulk-Fill Composite Using With Adhesives With or Without Chlorhexidine

This study aims to evaluate the clinical success of chlorhexidine-containing dentin bonding agent in primary molars with a 12-month follow-up. A total of 40 patients aged 5-9 years with at least two dentin caries (D1 Level) in primary molars were included in the study. The study involved a split-mouth design in which Ultradent PQ1 Bond and Ultradent Peak Universal Bond were used as the bonding agents and Tetric N Ceram Bulk Fill composite was used as the restorative material for the restoration of primary molars with class II cavity. The evaluation of clinical success was performed by a calibrated observer according to the FDI criteria at months 3, 6, 9, and 12 after restoration.

Inclusion criteria

(1) age between 5-9 years; (2) no systemic health problems (3) presence of at least one interproximal carious lesion not exceeding half of the dentin structure (D1 level) in the right and left sides of the mouth; (4) cooperation without issues (scoring 3 or 4 on the Frankl scale); and (5) patient and parent's willingness to attend follow-up appointments throughout the study.

Exclusion criteria

• (1) the presence of pulp vitality with no clinical and/or radiological signs requiring endodontic treatment, (2) no previous treatment on the selected teeth, (3) Radiographically, the caries should not extend to one-third of the pulp, indicating only the need for a Class II restoration, (4) the presence of adjacent teeth mesial and distal to the selected tooth and an opposing tooth in the oral cavity, (5) the absence of physiological or pathological root resorption.