Despite preventive treatments and the promotion of oral health, dental caries is one of the most prevalent chronic diseases in the population and treatment of caries lesions in deciduous teeth is a fundamental procedure aimed at increasing the resistance of the remaining tooth structure to preserve the permanent dentition. The present study aims to make a clinical evaluation of the Hall Technique compared to direct restorations with universal adhesives and bulk fill resins in large destruction of deciduous teeth. 90 children between 5 and 10 years old, healthy, of both sexes, without distinction of race, enrolled in the clinics of Universidade Metropolitana de Santos-UNIMES will be selected. The in-office treatments will be carried out by a trained researcher, according to the manufacturer's instructions for each material and scientific evidence on the respective topic. Participants will be divided into 03 groups according to the proposed treatments. Group 1 - Universal adhesive restorative procedure + condensable bulk fill resin; Group 2 - Hall Technique with Shofu steel crowns and Group 3 - Steel crown with conventional technique. The evaluated outcomes will be: effectiveness of the technique and longevity of the restorations.

Inclusion Criteria:

1. Healthy child, without systemic changes;
2. Good behavior;
3. Clinically, present at least two deciduous molars with caries in dentin involving more than three surfaces, with vision and direct access, without signs and symptoms of pulp involvement.

Exclusion Criteria:

1. Children with any serious systemic disorder;
2. Lack of cooperation.
3. Clinically present at least one deciduous molar with carious lesion in the dentin involving signs and symptoms of pulpal involvement.

Clinical and radiographic evaluations of the complete removal of the carious lesion will be performed by two calibrated examiners blinded to the allocation of teeth to the different groups. Also, calibrated examiners, who will not be performing the restorations and therefore will be blind to the groups, will perform the assessment.