Tracionamento ortodôntico: possíveis consequências nos caninos superiores e dentes adjacentes. Parte 2: reabsorção cervical externa nos caninos tracionados

External root resorption: diagnosis and treatment. clinical case report

“…22 In cases of invasive cervical resorption, an option of treatment consists of orthodontic traction allowing the exposure of the edges of the lesion and correct prosthetic treatment of the dental element from the creation of a total crown. 29,30 In the present case, a restoration with a composite resin was performed, since failure to restore immediately could lead to compromising the seal quality of the area with the MTA, resulting in failure due to leaks that may lead to a new infectious process. 31 Based the above, the clinical and radiographic examination is unpredictable for the correct diagnosis in cases of external root resorption, which can enable effective treatment and achieve satisfactory results; (as in the present case) the pulp vitality of the affected dental element can be preserved, thus guaranteeing an apparent stability of the resorption process without the need for radical endodontic treatment.…”

Perfuração do esmalte para o tracionamento de caninos: vantagens, desvantagens, descrição da técnica cirúrgica e biomecânica

“…This cervical region is a sensitive tooth structure due to the fragile junction between enamel and cementum. 16,17 During surgical removal of the DF in the cervical region the dentin gaps present in all human teeth, including deciduous teeth, are inevitably exposed to connective tissue after the flap is folded back over the tooth. The exposure of these dentin proteins, defined as sequestered antigens, can induce, over weeks or months, an immunological process of elimination that is clinically known as External Cervical Resorption (ECR).…”

“…This process may occur during orthodontic traction or after the tooth has reached the occlusal plane. 16,17 In many such cases a belated detection tends to be the rule. ECR is defined as a slow, painless, insidious process that does not compromise pulp tissues.…”

“…It also eliminates the possibility of preexisting processes such as external cervical resorption, aveolodental ankylosis and replacement resorption in the teeth to be submitted to traction. 17 When the imaging diagnosis reproduces more faithfully the actual position, the prognosis tends to be more precise and the treatment plan can be tailored to the individual.…”

“…The force and displacement of the orthodontic wire on the neck of the tooth would expose the dentin gaps in the CEJ, adding to the constant inflammation that resulted from the continuous trauma. 17 Accessory Bonding for Canine Traction (ABCT) and Enamel Drilling for Canine Traction (EDCT) are the most common procedures. ABCT is perhaps the technique of choice of most dentists as it prevents erosion of tooth structure.…”