Caries; Dentin

The goal of this study is to evaluate if an intraoral scanning device with an integrated radiation-free caries detection tool (near-infrared light) can detect early tooth decay. The main questions it aims to answer are: Can the tool find tooth decay as accurately as traditional visual and X-ray examinations? How reliable is the tool when used by different dentists? Participants will: * Have one tooth scheduled for extraction. This tooth and its adjacent teeth need to be examined before the extraction by using the intraoral scanner with the caries detection tool, which takes about 5 extra minutes. Those results will be compared to the standard dental examination, including visual inspection and X-rays. * Allow investigators to check the extracted tooth and the neighboring teeth directly after extraction to see if any carious lesion is visible. This study does not involve any drugs or invasive procedures beyond the planned tooth extraction, and participants will not be exposed to extra radiation. The results will help dentists detect tooth decay, which may allow less invasive treatments and better prevention.

This study aimed to evaluate the clinical success of the 'Silver Modified Atraumatic Restorative Technique '(SMART) with different modifications in asymptomatic deep carious lesions of primary molars.

The aim of the study is to compare preformed metal crowns and 3D-printed ceromer crowns in primary molars of 4-9 years old children. The main questions it aims to answer are: * How does 3D-printed ceromer crowns compare clincally to stainless steel crowns when restoring posterior molars? * What is the level of satisfaction of the patient with both materials? * What is the level of parental satisfaction with both materials? Study methodology: This study is a split-mouth clinical trial where participants will receive at least one of each materials in different quadrants of the mouth.

The purpose of this study is to evaluate and compare the clinical performance of dental restorative materials in Class II cavities of primary molar teeth