1/7. The role of orthognathic surgery in the treatment of severe dentoalveolar extrusion.BACKGROUND: When mandibular molars are not replaced after extraction, the long-term problem of inadequate interarch space for either a fixed or removable prosthesis can occur. In the past, practitioners needed to decide whether to shorten the teeth, extract the supererupted maxillary molars to recapture space or leave the area unrestored. The authors present another option. CASE DESCRIPTION: A 61-year-old man was referred to a periodontist by his general dentist for placement of mandibular implants in the posterior sextant. Extreme supereruption of the maxillary dentoalveolar segment prevented restoration of the opposing edentulous area. An oral and maxillofacial surgeon performed a segmental osteotomy of the posterior right maxilla to gain needed interarch space. After the osteotomy was stabilized, the periodontist placed implants that were subsequently restored with a fixed prosthesis. CLINICAL IMPLICATIONS: The role of orthognathic surgery in treatment planning should not be overlooked in the comprehensive management of severe extrusion. It offers patients the opportunity to gain both function and esthetics that might otherwise be impossible.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
2/7. Orthodontic treatment of a patient with multiple supernumerary teeth and mental retardation.Supernumerary teeth may lead to impaction or ectopic eruption of maxillary incisors, crowding, oronasal fistula, follicular cyst, migration of adjacent teeth and root resorption. In this presentation, an 11-year-old male patient with 4 supernumerary teeth in the maxillary anterior region and a slight mental retardation problem will be presented. After extraction of the supernumerary teeth, the large space created by distal migration of central incisors was closed by orthodontic treatment. Although initial patient compliance was weak and caused difficulties in the course of treatment, orthodontic treatment was completed successfully.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
3/7. Bilateral maxillary fourth molars and a supernumerary tooth in maxillary canine region--a case report.The occurrence of supernumerary teeth is a relatively uncommon dental anomaly. The aetiology is not clear. Supernumerary teeth have frequently been observed as solitary teeth and impacted in the maxillary arch. This case report describes the rare presence of bilateral maxillary fourth molars and a supernumerary tooth in the maxillary canine region. On the left side, the third molar was extracted first, allowing the fourth molar to move into a more favourable position for later extraction. Two-year postoperative radiography confirmed that the supernumerary tooth had migrated occlusally and mesially permitting a safer extraction procedure.- - - - - - - - - - ranking = 2keywords = extraction (Clic here for more details about this article) |
4/7. Migrating third molar: a report of a case.Pathologic migration is an abnormal change in the position of a tooth within the dental arch. There are many etiologic factors associated with this phenomenon, but the exact cause is often difficult to diagnose. The following is a report of a 42-year-old man exhibiting a unique form of bilateral migration of his mandibular third molars. He was asymptomatic and unaware of this occurrence. The morbidity to remove these teeth was deemed too great to justify extraction. biopsy of the overlying tissue associated with a left-impacted third molar revealed no significant pathologic process other than inflammation and some hyperplasia within the dental follicle. Histologic-radiographic correlation was inconclusive in determining whether epithelium from pericoronal soft tissue involving the right third molar was from a hyperplastic dental follicle or a small dentigerous cyst. It is speculated that the ultimate cause of the migration of the third molars was severe, aggressive periodontal disease of the adjacent molars.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
5/7. Three cases of first permanent molar extractions where extraction of the adjacent second deciduous molar is also indicated.Appropriately timed extraction of a carious first permanent molar can result in favourable mesial drift of the second permanent molar when space is not required for orthodontic treatment. However, when the second deciduous molar adjacent to the extracted tooth is not removed, distal drift of the unerupted second premolar may occur. This paper discusses three patients who had first permanent molars extracted without removal of the adjacent second deciduous molar, encouraging unfavourable distal drift of the second premolar in the first two cases.Timely extraction of the second deciduous molar in the third case should prevent this orthodontic problem. CLINICAL RELEVANCE: Treatment of gross caries in a first permanent molar requires assessment of the patient's orthodontic status prior to treatment planning.- - - - - - - - - - ranking = 10keywords = extraction (Clic here for more details about this article) |
6/7. Repair of an extensive periodontal defect after tetracycline administration. A case report.A pathologically migrated maxillary central incisor tooth with a poor periodontal prognosis was treated successfully with conventional periodontal therapy. After almost 4 years, an extensive periodontal lesion developed on the same tooth and extraction was recommended. The patient did not comply and the acute symptoms disappeared after the administration of 1 gm of tetracycline a day for 2 weeks. Although no definitive periodontal therapy was done, complete resolution of the lesion occurred with the healing of the structures of the periodontium and a dramatic reduction in mobility of the tooth. Antibacterial therapy could be an effective means of treating some periodontal lesions once a more exact and direct association is established between the various clinical forms of periodontitis and specific periodontal or groups of pathogens.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
7/7. Differential diagnosis and treatment planning for the adult nonsurgical orthodontic patient.Increasing numbers of adult patients are seeking orthodontic care and some, despite significant skeletal malocclusions, elect not to have combined orthodontic-surgical treatment. The purpose of this article is to outline some of the diagnostic and therapeutic principles that can be used in the adult nonsurgical orthodontic patient. The importance of realistic goal setting in the face of compromised occlusions is emphasized. diagnosis should include evaluation of all three dimensions and recognize the limitations of therapy in each dimension for the nongrowing patient. Periodontal considerations, extraction decisions, and retention regimens are of vital importance to the achievement and maintenance of an optimum result. Clinical records will demonstrate four commonly seen problems and their resolution.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |