Clinical Evaluation of Different Designs of Fixed Space Maintainer: A Randomized Clinical Trial.

Purpose: Evaluation of survival rates for three space maintainers (SMs) of different designs compared to the standard one.

Materials And Methods: A total of 52 extraction sites in children aged 4-7 years with prematurely lost primary molars were selected for this study. The whole sample was divided into four groups of 13 each.

Effect of adhesive resin application on the progression of cavitated and non-cavitated incipient carious lesions.

Purpose: To evaluate the penetration of two different adhesive resin systems into cavitated and non-cavitated artificial carious lesions and the behavior of treated carious lesions under further acid attack.

Methods: Artificial caries-like lesions were created on the proximal surface of 100 human primary molars by a demineralizing gel. The teeth were assigned to three groups according to the adhesive resin used.