Evaluation of Relationship between Covid-19 and Occlusion of Deciduous Teeth and Root Canal Morphology in the First and Second Molar Teeth of Children with Cavities


  • Milad Soleimani, Zahra Salmani, Mohammad Shafaq, Hamid Ghazipoor, Seyed Masoud Sajedi


The aim of this study was to evaluate the occlusion of deciduous teeth in children with Covid-19. Covid-19 is spread by droplets. This infection is highly contagious and can also be transmitted through the mouth or through contact with contaminated surfaces or oral fluids. Therefore, oral hygiene greatly affects the severity of Covid-19. Evaluation of occlusion in the period of deciduous teeth is important for recognizing and correcting occlusal problems during tooth development and having natural occlusion in adulthood. Because in children, occlusion examination, especially in the area of ​​the mammary molars, requires skill, while examining canine relationships is much easier. If a relationship is found between canines and molars, canine examination can be used as the first step in occlusion examination. The goal of root canal treatment is complete debridement of the root canal and complete removal of microorganisms and their by-products from the root canal system and effective flood of the canal system. This goal will not be achieved without full knowledge of the root canal morphology. One of the most common causes of failure of non-surgical root canal treatment is the inability to effectively treat all root canals. Numerous studies have been presented on the morphology of the root canal in different populations, which is certainly of great importance for endodontists and general dentists who want to perform endodontic treatments. The first signs of macroscopic development of maxillary deciduous teeth begin at 12.5 weeks. The time of the first signs of calcification of the first maxillary deciduous tooth is at 15.5 weeks and the second maxillary deciduous molars at 19 weeks. At birth, three-quarters of the occlusogenital height of the crown of the first maxillary deciduous molars and one-fourth of the occlusogenital height of the second maxillary deciduous crown of the maxilla are calcified.