Coconut water was worse than milk in maintaining human fibroblast cell viability.

Our results showed the clinical and radiographic outcomes for Calen(®) /ZO to be equal to those for ZOE after 18months, suggesting that both materials can be indicated for obturating primary teeth with pulp necrosis after trauma.

Aim: Nail-biting is one of the most frequent deleterious oral habits in children. It can result in systemic diseases or oral traumatic lesion. This report describes a case of gingival abscess in a child due to a fingernail-biting habit.

<p>Dental ankylosis occurs by fusion of the root surface with the alveolar bone due to necrosis of the periodontal ligament. Local trauma, periapical infection, endocrine and metabolic disorders, excessive masticatory effort, poor eruptive force of the permanent successor and genetic alterations are some factors that can lead to ankylosis. Although there is not a known treatment for dentoalveolar ankylosis, there are alternative procedures, such as keeping the ankylosed tooth or its root, extraction followed by orthodontic closure, autotransplantation, implant, dento-osseous unit osteotomy or decoronation. The decoronation is a procedure which the crown of the ankylosed tooth is surgically removed below the cemento-enamel junction and the root is buried. After the procedure, a aesthetic maintainer of space is installed to prevent the space loss until the opportunity to provide a definitive rehabilitative treatment. Our aim is to report the case of patient LSM, female, 8 years-old, who came to the Oraldental Trauma Center of Federal University of Ceará after colliding against a wall. Avulsion of the dental element 21 occured and the tooth was stored in milk. The reimplantation occurred one hour after the injury. The treatment performed was decoronation and installation of a aesthetic and functional space maintainer. This case report presents a clinical follow-up of 6 months and 3 years of radiografic follow-up.</p>

Intrusive luxation is a kind of traumatic injury characterized by an axial displacement of the tooth toward the alveolar bone. Its main causes are bicycle accidents, sports/recreational activities, and falls or collisions. Treatment strategies include waiting for the tooth to return to its position, immediate surgical repositioning and repositioning through dental traction by orthodontic devices. The correct diagnosis must be based on clinical and radiographic exams and it is crucial for decision-making in the treatment of injured patients. Currently, the cone beam computed tomography (CBCT) has been widely used in orthodontics, restorative dentistry and implantology as well as in the diagnosis of complex dental trauma. This article reports a case of severe dental intrusion, in which the cone beam computed tomography (CBCT) was performed because of doubts generated after clinical examination and panoramic radiograph analyze. This case report confirmed that the CBCT is an important exam to correct diagnostic.