Introduction: More than 40,000 children undergo cancer treatment each year. In the long term, children and adolescents are at risk of developing oral complications over time, especially in relation to teeth. Objective: To analyze the literature about dental management of patients with childhood cancer, including oral examination before treatment, preventive strategies, dental treatments and oral complications related to cancer therapy. Methodology: The PubMed database was used; review and research articles were identified where oral and dental complications in pediatric patients diagnosed with cancer were mentioned. The terms "cancer", "childhood", "dental", "complications" were used. Results: The oral examination before a treatment indicates that thanks to the help of an examination prior to starting any treatment, the severity of oral complications can be reduced. Preventive strategies indicate that the pediatric dentist should be involved with the patient from the diagnosis, developing oral care plans that are individualized for each patient. Dental treatments must be performed after evaluating the child's tolerance to avoid any complications. Oral complications related to cancer therapy such as mucositis, xerostomia, and infections must be anticipated during cancer treatment. Conclusion:As pediatric dentists we need to participate at the beginning of treatment at the time of cancer diagnosis, developing prevention plans and oral care related to the patient's needs. Support from the oncology team is needed to provide optimal treatments.

Introduction: Full coverage crowns are still the most common procedure. Indirect partial overlay restorations have been suggested as a minimally invasive alternative, preserving more healthy tooth structure while providing cusp protection. Objective: To analyze the literature on indirect overlay posterior restorations as a minimally invasive alternative to the placement of full coverage crowns, their survival, resistance to fracture, preparation design and biomimetic considerations. Methodology: An electronic search was carried out through PubMed (MEDLINE), Google Scholar and Cochrane Library, using the terms: "overlay", "partial crown", AND "ceramic" or "porcelain" AND "survival" or "resistance" AND "design". Results: Overlay restorations show an acceptable medium and long-term survival rate like that of conventional full coverage crowns. The main mode of failure is ceramic fracture, followed by adhesion failure. The resistance to fracture is influenced by the physical properties of the restorative material, the cementing agent used and the design of the preparation; the latter being the most influential and characteristic factor of overlay restorations that confer biomimetic advantages superior to conventional crowns. Conclusion: Lithium disilicate overlay restorations have a satisfactory long-term survival rate. The technique allows for minimally invasive restorations, increased resistance to fracture and prolongs the restorative life cycle of the dental organ.

Introduction: Perforations are characterized by a communication between the root canal system and the external surface of the tooth. Objective: To analyze the literature on the perforations that can occur during root canal treatment and the different bio ceramic materials used to seal them such as gray MTA, ProRoot MTA, Biodentine and Endo Sequence. Methodology: Electronic bibliographic databases (PubMed, EBSCO, Cochrane) were used using the keywords perforations, bioceramics, MTA, ProRoot MTA, Biodentine, EndoSequence. Results: MTA was the first bioceramic cement, providing good sealing, biocompatibility, and antimicrobial activity. However, it has been demonstrated that new bio ceramic cements have a better sealing capacity. ProRoot MTA is an excellent choice for sealing mainly furcated holes, a disadvantage is the change of color in the pieces. Biodentine, a biocompatible calcium silicate-based bio ceramic cement used in endodontic treatments, provides better sealing capabilities than other bio ceramic cements. Endosequence is a new bio ceramic cement, it can be found as a pre-mixed putty making it easier for the operator to handle, in addition, its sealing capacity is better compared to other bio ceramic cements. Conclusion: According to the literature reviewed, Biodentine and EndoSequence are the best bio ceramic materials for sealing and repairing endodontic holes.

Introduction:In Latin America, the prevalence of mesiodens is 1.7%. Mesiodens impacted towards the base of the nostril can cause complications such as: pain, epistaxis, rhino sinusitis, nasal obstruction and congestion and even eruption through the nostril. Case report: A 7-year-old male patient with no clinical pathological data came for consultation due to interference in occlusion caused by a palatine erupted mesiodens. A radiographic finding was a second mesiodens in the anterior maxillary area. Diagnosis: Inverted conical mesiodens near the floor of the nasal cavity. Treatment: Surgical treatment by means of a vestibular incision in the anterior maxillary area. Results: The procedure was performed under local anesthesia, surgical procedure of the impacted tooth, low speed hand piece was used, the dental organ was removed and stitches were placed. Conclusion:Early detection of mesiodens is of utmost importance since timely treatment allows avoiding future complications.