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Results for “Tooth Injuries”

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At least 451 records · Page 25Linked to original sources
PubMed1984

[A new physiological scale for assessing posttraumatic disability in stomatology].

Establishing post-traumatic disability according to the present scale raises problems in relation to patients with 100% disability who cannot, under existing conditions, be compensated for further injuries. A complete reorganization of this system is proposed in which total 100% invalidity corresponds to death of the patient. For patients with some, even limited, capacities, the post-traumatic physiologic disability + remaining capacity would be equal to 100%. Proposed scales are reviewed and classified into 5 groups.

Dentures↗
PubMed1984

Temperature rise during root canal preparation--a possible cause of damage to tooth and periodontal tissue.

Temperature rise on the surface of extracted human premolar roots was recorded during root canal preparation using a thermo-couple. It was found that time, pressure exerted on the reamer, type of reamer and rotational speed influenced the temperature rise. Starting from about 30 degrees C temperatures up to 87 degrees C were recorded, generally in less than 50 seconds' working time, using routine instrument and technique. Possible effects of this temperature rise on tooth substance, periodontal membrane and supporting bone are discussed.

Dental Instruments↗
PubMedDate not supplied

Anterior tooth trauma in the primary dentition: incidence, classification, treatment methods, and sequelae: a review of the literature.

A review of the literature is presented to discuss anterior tooth trauma in the primary dentition. Studies show that the incidence ranges from 4 percent to 30 percent and varies depending upon the sex and age of the child. Classification of the type of trauma is subdivided into trauma to the tooth and trauma to the periodontium. Treatment modalities depend upon various factors and range from nontreatment to splinting to extraction. Possible sequelae of primary tooth trauma may include tooth discoloration, loss of vitality, root resorption and/or abscess formation. Careful follow-up is recommended following any type of trauma, because the ultimate goal in treatment is to prevent damage to the permanent successor.

Aftercare↗
PubMed1995

Evaluation, diagnosis, and treatment of the traumatized patient.

This article discusses the early assessment of the patient who has sustained an oral injury. The various types of orofacial injuries are reviewed, with emphasis on their early management. The dentist's early assessment of the patient must include a general evaluation of the patient as well as a more specific dental evaluation because the general dentist is often the first person to assess a patient who has been injured.

Emergencies↗
PubMed1994

Resorption patterns following intentional vital root transection in Macaca mulatta.

Previous studies have shown degeneration of nerve tissue as well as reorganization by periodontal tissue in dental pulp chambers following intentional vital root transection in Macaca mulatta. The supporting structures of the teeth, as well as the root itself, have not been fully studied following such surgery. The purpose of this study was to observe histopathologic changes in bone and root structure over a 1-year postoperative period. Three adult Macaca mulatta were evaluated for this study. Roots were transected within the apical one third and the areas were surgically closed. Following a postoperative soft diet for 7 days, the monkeys were allowed normal masticatory function. Maxillary and mandibular quadrants were removed following vascular perfusion of the animals at 1, 2, 3, 6, 24, and 52 weeks; quadrants were then demineralized, embedded, sectioned, and stained with Preece's trichrome. Resorption of cementum, dentin, and bone was independently evaluated on microslides for each tooth at consecutive intervals of approximately 70 microns. Resorption was rated as mild, moderate, or severe depending on the number of Howship's lacunae and the dimension of the resorptive area. Severe bone resorption was evident at 1 week, decreasing at 2 weeks, and then progressively decreasing up to 52 weeks. Most active inflammatory root resorption was noted on maxillary and mandibular premolars and molars on first-week specimens. Arrested resorptive areas were present in similar locations in second- and third-week specimens. New cementum was present along the cut surface on specimens from 2 to 52 weeks and within the pulp canal beginning at 2 weeks.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗
PubMed1994

[Complications of marrow harvesting for transplantation].

Seventy-four responses were received from a questionnaire which had been mailed to 91 bone marrow transplantation institutes throughout Japan to assess the activity of bone marrow transplantation and complications in bone marrow donors. A total of 2329 bone marrow harvests, performed from 1688 adult donors and 641 child donors for allogeneic or syngeneic transplantation up to August 1992, were available for study. Analyses of the responses showed slight diversity regarding the marrow harvesting preparation and methods of the different bone marrow programs. The resulting perioperative complications were principally caused by anesthesia: 73 episodes of hypotension including one death 18 months later, seven of arrhythmia, one of respiratory arrest, three of mental confusion, one of asthma, one of malignant hyperthermia, one tooth injury and one broken aspiration needle. The postoperative complications were chiefly caused by marrow aspiration per se: 731 episodes of transient fever, 26 of long-lasting pain or discomfort, 10 episodes of liver dysfunction including two cases of non-A, non-B hepatitis, four cases of infection, one episode of hypotension, one of dysuria and one case of keloid formation. The study further revealed that the frequency of complications was lower in child donors than in adult donors.

Adolescent↗
PubMed1996

Localized enamel hypoplasia: a case report.

This case report describes a disfiguring hypoplastic maxillary right central incisor in a 20-year-old man. The maxillary primary central had been traumatized in a fall, which had resulted in its intrusion with subsequent episodes of pain and swelling around the tooth. The tooth had been extracted several years later. When the permanent central incisor erupted, it was grossly hypoplastic. The possible causes of this defect are discussed.

Adult↗