Adolescent 1 Bacterial Adhesion 1 Child 1 Child, Preschool 1 Dental Pulp 1 Fibroblasts 1 Helicobacter Infections 1 Helicobacter infection 1 Helicobacter pylori 1 Human dental fibroblast cells Humans 1 Infant 1 Inflamed pulp 1 Limit of Detection 1 Nested PCR method 1 Polymerase Chain Reaction 1 Pulpitis 1 Root Canal Therapy 1 Sensitivity and Specificity 1 Young Adult 1 adolescent 1 bacterium adherence 1 child 1 endodontic procedure 1 fibroblast 1 genetics 1 human 1 infant 1 limit of detection 1 microbiology 1