ABSTRACT
Aspirating the unknown contents of a bony cavity and saline irrigation of a body wound are both basic surgical techniques. These two techniques have been combined in treating persistent periradicular pathosis in two cases. The cases demonstrate significant bony healing of extensive periradicular defects after the use of the combined procedure. Both cases were nonresponsive to nonsurgical root canal treatment. The use of aspiration and irrigation may initiate healing in cases of uninfected apical cysts which heretofore would require surgical intervention. The conservative nature of these procedures has advantages of reduced treatment time, avoidance of iatrogenic problems, and elimination of some conventional apical surgery.
Subject(s)
Periapical Diseases/therapy , Radicular Cyst/therapy , Adult , Humans , Incisor , Male , Maxilla , Suction , Therapeutic Irrigation , Wound HealingABSTRACT
A quantitative study was undertaken to measure remaining dentin/cementum thickness after using step-down, step-back hand instrumentation or ultrasonically energized instrumentation techniques. A model system was used which enabled the same canal system of extracted human mandibular molars to be accurately evaluated and measured before and after instrumentation. Although no statistical difference was demonstrated in the encroachment upon the furcal aspect of mesial roots of mandibular molars, both techniques came dangerously close to creating stripping and perforations in a high percentage of cases.
Subject(s)
Dental Instruments/adverse effects , Dental Pulp Cavity/injuries , Root Canal Therapy/instrumentation , Ultrasonics/adverse effects , Dental Cementum/pathology , Dentin/pathology , Humans , Molar , Root Canal Therapy/adverse effects , Tooth Root/pathologyABSTRACT
A modification to a current research model is proposed. While maintaining all of the benefits of the previous system, this modification adds the significant advantages of a system that is more durable, less time consuming, and reusable.
Subject(s)
Dental Pulp Cavity/anatomy & histology , Models, Dental , Acrylic Resins , Humans , Root Canal TherapyABSTRACT
The quality of canal obturation utilizing ultrasonic or hand instrument sealer placement followed by lateral condensation with gutta-percha was investigated. This in vitro study using the mesial roots of human mandibular molars showed the ultrasonic method of sealer placement resulted in a more thorough coverage of canal walls than when the sealer was placed with hand instruments. The difference was statistically significant (p less than 0.005). Ultrasonic sealer placement may be safely and effectively utilized when obturating a complex root canal system.
Subject(s)
Epoxy Resins , Gutta-Percha/administration & dosage , Root Canal Obturation/methods , Ultrasonic Therapy/instrumentation , Bismuth , Chi-Square Distribution , Dental Leakage/prevention & control , Drug Combinations , Humans , Methenamine , Molar , Root Canal Filling Materials , Silver , TitaniumABSTRACT
Bone scans were evaluated in 57 patients referred from the nuclear medicine clinic. Areas of normal and abnormal radiopharmaceutical accumulation in the maxilla and mandible were correlated with a clinical and radiographic dental examination. There was an 80% agreement between the areas of normal and abnormal uptake with the clinical and radiographic findings. This was statistically significant (p less than 0.001). Twenty-one patients had clinical and radiographic dental examinations that were within normal limits and yet had abnormal bone scans. Five of these 21 patients were subsequently seen on an emergency basis for treatment of dental abnormalities. These positive areas on the bone scans may be indicating areas of pathosis not detectable by conventional clinical and radiographic diagnostic techniques.
Subject(s)
Facial Bones/diagnostic imaging , Mandibular Diseases/diagnostic imaging , Maxillary Diseases/diagnostic imaging , Adult , Aged , Aged, 80 and over , Dental Pulp Test , Female , Humans , Male , Middle Aged , Periapical Tissue/diagnostic imaging , Periodontal Diseases/diagnosis , Radiography, Panoramic , Radionuclide ImagingABSTRACT
Although this procedure is not necessarily indicated for all patients, it is an alternative to subsequent soft tissue, osseous, or synthetic grafting procedures. The combination of extraction, hydroxylapatite graft, and acid-etched replacement is an alternative treatment that reduces patient treatment time.
Subject(s)
Alveolar Process/surgery , Denture, Partial, Temporary , Hydroxyapatites , Prostheses and Implants , Acid Etching, Dental , Adult , Humans , Male , MaxillaABSTRACT
Osteomyelitis of the maxilla is not often found. A rare case of this condition secondary to a chronic vertical root fracture of a maxillary lateral incisor, with Pseudomonas aeruginosa as the primary pathogen, is presented. Interesting features of this case report are the occurrence of osteomyelitis in the maxilla, the rare isolate of P. aeruginosa, and the clinical problems associated with the diagnosis of vertical root fractures. The combination of surgical, endodontic, and antimicrobial therapy used is described.
