64006

Common sequelae of replanted avulsed tooth are ankylosis and resorption of roots. These complications occur due to: 1) Periodontal ligament damage during avulsion and handling, 2) Extended extraoral time leading to PDL cell death, 3) Inflammatory response triggering resorptive processes, 4) Direct bone-root contact causing ankylosis, 5) Root surface damage predisposing to replacement resorption. These complications are more common when extraoral time exceeds 30 minutes or when the tooth is stored in inappropriate media. Proper immediate management can reduce but not eliminate these risks.

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Vertical root fractures are often associated with a poor prognosis because they can lead to significant loss of tooth structure and are difficult to treat. They typically result in the need for extraction, especially if they extend into the periodontal ligament or if the fracture is not detected early.

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A pulp polyp, also known as chronic hyperplastic pulpitis, is an inflammation of the pulp resulting from extensive carious exposure of the young pulp. This condition is a form of irreversible pulpitis that occurs when the pulp is chronically exposed to the oral environment, typically in young teeth with large apical foramina and a rich blood supply, which allows the pulp to remain vital and overgrow into the carious lesion.

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Vertical root fractures have the poorest prognosis among all tooth fractures. This is because: 1) The fracture line extends from crown to apex, compromising the entire root structure, 2) Bacterial contamination occurs along the entire fracture line, 3) Periodontal ligament attachment is severely compromised, 4) Healing is virtually impossible due to constant separation of fragments during function, 5) Almost always requires extraction. Horizontal fractures at the apical third have the best prognosis, while gingival level and middle third fractures have intermediate prognosis depending on management.

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When it comes to assessing the success of endodontic therapy, the changes that occur in the periapical region are crucial indicators. A successful treatment typically results in the formation of new cementum, regeneration of the alveolar bone, and regeneration of the periodontal ligament. These processes are all part of the body's natural healing response to the removal of infection and the introduction of a biocompatible filling material in the root canal system. Thus, all of the above factors contribute to the overall success of the treatment.

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When multiple teeth show periapical radiolucency after trauma, only non-vital teeth require endodontic treatment. Vital teeth with intact pulp should be monitored. Extracting all four teeth or surgery would be too aggressive as initial treatment.

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Laser Doppler flowmetry is used in dentistry to assess pulp vitality by measuring blood flow within the pulp tissue. It detects the movement of red blood cells using a low-power laser beam, making it a non-invasive method for determining the health of a tooth's pulp.

59383

In post core preparation, the sectional gutta-percha technique is used. This technique involves: 1) Removing the coronal portion of gutta-percha for post space preparation, 2) Leaving the apical portion intact to maintain apical seal, 3) The gutta-percha is sectioned at a predetermined level (usually leaving 4-5mm apically), 4) Heat or solvents are used to remove only the coronal portion, 5) This maintains the apical seal while allowing post placement. Thermoplasticized and vertical techniques make removal more difficult, while lateral condensation can be sectioned but is not specifically designed for post preparation.

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An apicectomy (or root-end resection) is a minor surgical procedure performed to remove the apex, or very end, of a tooth's root. This procedure is typically necessary when inflammation or infection persists in the bony area around the end of a tooth after a standard root canal procedure has failed. The procedure is often followed by a retrograde filling (retrograde restoration) to seal the end of the root canal.