Cases reported "Dentin, Secondary"

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1/24. Delayed apical healing after apexification treatment of non-vital immature tooth: a case report.

    We report the endodontic treatment of a non-vital permanent immature tooth in which unexpected complications such as exacerbation of apical periodontitis followed by external root resorption occurred after that the initial stages of the healing process were clinically and radiographically evident. After continued treatment stable repair was obtained.
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2/24. Prophylactic treatment of dens evaginatus using mineral trioxide aggregate.

    Two case reports with dens evaginatus are presented. Each patient had one tooth affected. There was a prominent tubercle on the occlusal surface of the mandibular second premolar. Under local anesthesia and rubber dam isolation a partial pulpotomy was conducted and mineral trioxide aggregate was placed. After 6 months the teeth were removed as part of planned orthodontic treatment. Histological examination of these teeth showed an apparent continuous dentin bridge formation in both teeth, and the pulps were free of inflammation. These cases show that mineral trioxide aggregate can be used as an alternative to existing materials in the proplylactic treatment of dens evaginatus.
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3/24. Conservative management of an accidentally resected root: a 3-year follow-up.

    Despite all the effort by dentists to provide high levels of dental care in clinical practice, there is always the possibility of accidents occurring. This report describes a referred case that presented with irreversible pulpitis in tooth #19. The situation developed after accidental resectioning of the distal root of tooth #19 during the surgical extraction of tooth #18 by another dentist. The resultant open apex in the distal root of tooth #19 was managed conservatively. A positive apical stop was prepared at the root end of the distal root and sterile calcium hydroxide powder was used to create an apical barrier against which a gutta-percha filling was condensed. The treatment appeared successful at 3-year follow-up.
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4/24. Revascularization of an immature permanent tooth with apical periodontitis and sinus tract.

    A necrotic immature mandibular second premolar with periapical involvement in a 13-year-old patient was treated. Instead of the standard root canal treatment protocol and apexification, antimicrobial agents were used in the canal, after which the canal was left empty. Radiographic examination showed the start of apical closure 5 months after the completion of the antimicrobial protocol. Thickening of the canal wall and complete apical closure was confirmed 30 months after the treatment, indicating the revascularization potential of a young permanent tooth pulp into a bacteria-free root canal space.
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5/24. Combined apexification and orthodontic intrusion of a traumatically extruded immature permanent incisor.

    A patient with a traumatic extrusion of the maxillary right central incisor was referred to the Pedodontic Clinic of Gazi University faculty of dentistry after 15 days. Orthodontic repositioning of the tooth was planned in 6 months. At the beginning of orthodontic therapy it was observed that the tooth was necrotic and needed an apexification procedure. The apexification procedure and orthodontic intrusion were successfully performed at the same time. In addition, a "walking bleach" was performed after the orthodontic and endodontic procedures were completed. At the 3-year recall, the tooth appeared normal in all respects.
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6/24. Unusual fracture of a mandibular second premolar: a case report.

    Root fractures of posterior teeth, which are defined as fractures involving cementum, dentin, and pulp, are relatively uncommon among dental traumas. This study describes an unusual horizontal fracture of a mandibular second premolar. The tooth was asymptomatic and the fracture unnoticed until the crown broke off completely. The patient had no recollection of a causative event nor was there any evidence of previous physical trauma. The tooth was extracted, embedded in resin, sliced, and examined with different light microscopes. It was concluded that the tooth had been damaged previously but not to the extent that the pulp was seriously damaged. Resorption over a period of time eventually caused the final fracture.
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7/24. Cvek pulpotomy: report of a case with five-year follow-up.

    Partial pulpotomy (Cvek pulpotomy) is the treatment of choice for injured permanent incisor teeth with exposed vital pulp tissue and immature apices. This treatment preserves pulpal function, thus allowing continued root development. The present report describes the case of a permanent incisor with incomplete root end closure that underwent a Cvek pulpotomy, with subsequent apical closure. Five years post pulp therapy, the tooth remained symptom free.
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8/24. Repair characteristics of horizontal root fracture: a case report.

    Radicular fractures in permanent teeth are uncommon injuries among dental traumas, comprising 0.5-7% of the cases. Fracture occurs most often in the middle-third of the root and rarely at the apical-third. The present paper reports a clinical case of a horizontal radicular fracture located between the middle- and apical-third of a upper left-central incisor followed-up for over 3 years. The tooth was extracted owing to periodontal reasons. Histomorphologically, it showed pulp-vitality preservation and root healing by hard-tissue deposition.
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9/24. Preserving pulpal health of a geminated maxillary lateral incisor through multidisciplinary care.

    AIM: To report the multidisciplinary care of an unaesthetic geminated maxillary lateral incisor tooth, which allowed its preservation in the mouth. SUMMARY: Preoperative examination of an unsightly geminated maxillary lateral incisor (tooth 22) demonstrated two pulp chambers and open apices, with normal pulp sensitivity responses. At surgery, a periodontal mucoperiosteal flap was reflected and the distal part of the geminated tooth was removed. The exposed root canal of the preserved tooth was sealed with mineral trioxide aggregate (MTA). The extraction socket and osseous defect was grafted with decalcified freeze-dried bone allograft (DFDBA) before flap closure. During follow-up, distal caries in tooth 22 and a diastema between tooth 22 and 23 were managed with composite resin restorations. Forty-two months postoperatively, normal thermal and electrical pulp sensitivity tests confirmed pulp health. Convincing apexogenesis and dentinogenesis of the developing root was confirmed by radiographic examination. Acceptable periodontal health including 3-4 mm clinical probing depths was achieved. Optimizing aesthetics and occlusion was accomplished without orthodontic treatment.
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10/24. Root agenesis in developing canines as a complication of intranasal antrostomy.

    A case is reported in which the roots of both maxillary canines failed to develop, a defect that could be traced to antral surgery when the patient was 8 years of age. The differential diagnosis of such a finding is proffered. The maxillary antrum is described, and aspects of the surgical procedure, the nasal antrostomy, used in this patient are discussed. A brief outline of current thought on the mechanisms of eruption of teeth is appropriate, and treatment of the symptomatic tooth is mentioned.
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