The four mechanisms of dental resorption initiation

Abstract

O presente trabalho propõe-se a apresentar uma classificação, com aplicação clínica, para as reabsorções dentárias, para que o diagnóstico seja objetivo e imediatamente ligado à causa do problema, levando automaticamente o clínico ao provável plano de tratamento e a um prognóstico preciso. Com esse objetivo, sugerimos agrupar cada caso clínico de reabsorção dentária em um dos seguintes grupos: 1) Reabsorções radiculares pela morte dos cementoblastos, com manutenção dos restos epiteliais de Malassez.2) Reabsorções radiculares pela morte dos cementoblastos e dos restos epiteliais de Malassez.3) Reabsorções dentárias pela morte dos odontoblastos, com manutenção da vitalidade pulpar. 4) Reabsorções dentárias pela exposição direta da dentina ao tecido conjuntivo gengival, nos gaps da junção amelocementária.

Orthodontic approach in dental trauma: systematic review and meta-analysis

“…Depending on the type and intensity of dental trauma, some areas of periodontal ligaments can mortify, and during the healing process, these areas can be colonized by bone cells 20 . The initiation of an inflammatory process-for example, due to orthodontic movement-can initiate external root resorption because these bone cells have receptors for these mediators of inflammation and may provide basic multicellular units (BMU) that will initiate the tooth resorption 18,20 This demonstrates the importance of care in orthodontic movement after dental trauma.…”

Delayed tooth replantation in rats: effect of systemic antibiotic therapy with amoxicillin and tetracycline

“…In the present study, root canal treatment was performed as the standard procedure to control the infection of endodontic origin . For the gingival and periodontal routes, we followed the recommendation of root surface treatment combining removal of the necrotic PDL remnants, immersion in a sodium fluoride solution, and administration of systemic antibiotics . Calcium hydroxide intracanal dressing was used because of its well‐known biological and antimicrobial properties and its wide use in tooth replantation .…”

“…Delayed tooth replantation is far more frequent than immediate replantation. One of the causes is people's and even dentists' lack of knowledge of the adequate management of cases of avulsion , which results in extensive damage to PDL, including death of cementoblasts and necrosis of the precementum layer and the epithelial cell rests of Mallassez, starting a resorption process .…”

“…The main etiologic agent of inflammatory resorption is pulp necrosis and PDL contamination . Controlling the infection during periodontal repair after replantation is of utmost importance because persistence of acute or chronic inflammation for long periods implies the creation of an environment favorable to the occurrence of root resorption . Therefore, systemic antibiotic therapy (SAT) in combination with root surface and endodontic treatment is recommended for patients undergoing replantation procedures .…”

A 16-year-old boy with chronic discharging sinus on upper left lateral incisor tooth

“…Previous studies have indicated that internal resorption proceeded mainly due to chronic inflammation in the pulp, loss of/or damage to the odontoblasts and the predentin. [17][18] Furthermore, the invasion of macrophage into the pulp also responsible for internal root resorption. In the advance cases, the pulp tissue apical to the resorptive lesion undergoes necrosis and the bacteria infect the entire root canal system resulting in acute or chronic apical periodontitis followed by formation of sinus tract with suppuration in the periapical tissue or possibly at the site of perforation of the root canal wall caused by the hard tissue destruction.…”