SEARCH · Search PubMed
Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Supernumerary teeth are rare anomalies of the maxillofacial complex that are more common in the maxilla than in the mandible. This article reports a case of an impacted supplemental type of supernumerary tooth in the mandibular arch, in the left premolar region. The etiology, types and treatment alternatives are discussed.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Impaction of a primary tooth is a rare occurrence compared to impaction of a permanent tooth. Impaction should be differentiated from reimpaction, a condition in which an erupted tooth loses its apical movement and impaired development of the alveolar bone surrounding the tooth occurs. In dental ankylosis, the height of the alveolar process stops in the affected area, the adjoining teeth continue to move occlusally, and neighboring teeth drift. The author discusses the uncertain etiology of reimpaction. The history of a three-year-old patient is presented.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
In a comprehensive study of 1,059 panoramic radiographs of Air Force recruits, the following findings were noted: 10% of the recruits had no restorations, no radiographic decay, and no teeth missing; 10% had at least one endodontically treated teeth; and 5% had at least one metallic crown. The typical recruit averaged five restorations, one impaction, and one missing tooth.
In a double-blind, single dose study of analgesic efficacy, 165 patients who were expected to develop moderate to severe pain following the removal of an impacted mandibular third molar tooth were allocated to receive aspirin, placebo, or an increasing dose of a fixed ratio ibuprofen/codeine combination. The degree of pain experienced prior to medication was noted and the patients were asked to record the degree of pain and of pain relief hourly for the following 5 hours. The study produced clear evidence of the superior efficacy of the combinations when compared to placebo and aspirin. In addition, the high dose combination appeared to be superior with respect to pain relief and the need for additional analgesia compared to the low dose treatment. There were few side effects and only one severe reaction was reported by a patient in the high dose group. To avoid side effects it is suggested that the medium-dose combination, ibuprofen 400 mg/codeine 30 mg, is optimal.
This report describes the atypical migration of an impacted lower third molar tooth in a 42-year-old woman. Serial radiographs showed that, over a period of 13 years, the tooth migrated from its original disto-angular position posterior to and beneath the roots of the adjacent second molar to a more horizontal position beneath the roots of the first permanent molar. The tooth was surgically removed under general anaesthesia, with biopsy and curettage of soft tissue found in the bone posterior to the tooth along the path of migration. This pattern of tooth movement is highly unusual in an adult patient.
Analysis of 110 records of patients who presented with impacted mandibular 3rd molars was carried out to determine the frequency of occurrence of unilateral and bilateral impactions and their characteristics. 68.2% of the patients had bilateral impactions. Among the patients with bilateral impactions, 72% had mesioangular impaction occurring either bilaterally or in combination with other types of impaction. Furthermore, 38.7% mesioangular impactions were observed on the right and left sides in the patients with bilateral impactions. Among the patients with unilateral impactions 40.2% presented with mesioangular impaction, while 25.7% presented with distoangular impactions. While these observations support the general consensus regarding aetiology of mandibular 3rd molar impactions as being tooth-tissue discrepancy, the possible influence of other factors is suggested.
Explore the source record for details and available documents.
Explore the source record for details and available documents.