1/12. Atypical migration of an impacted lower third molar.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.- - - - - - - - - - ranking = 1keywords = lower (Clic here for more details about this article) |
2/12. Surgical removal of a dislocated lower third molar from the condyle region: case report.INTRODUCTION: Migration of dislocated lower third molar into the condylar region is quite rare. attention should be taken to avoid condyle fracture. methods: 49-year-old patient had an ectopic lower left third molal in the condylar region, suffered from a submandibular and masseter space abscess. Removal of the molar via intraoral approach was chosen avoiding facial nerve branches and unnecessary scar formation. Coronoid process is removed, the tooth is separated and removed. The defect is filled with iliac cancellous bone. The coronoid process was fixed as a cover with a resorbable plate and screws (BIONX). RESULTS: Removal via intraoral approach is possible. hypesthesia existed postoperatively, became normal later. CONCLUSION: Annual observation is strongly recommended. Intraoral approach is superior to the extraoral approach. Removal of the coronoid process minimizes the masticator forces. Separation of the tooth is essential. Filling the defect with cancellous bone accelerates the healing.- - - - - - - - - - ranking = 1.2keywords = lower (Clic here for more details about this article) |
3/12. Canine ectopia: report of two cases.Transmigration of mandibular canine is a rare elusive phenomenon described in dental literature. The eruption of such transmigrated canines is even rarer. Two rare cases one of midline mandibular canine and the other of transmigrated mandibular canine across the midline and erupted distal to the opposite lateral incisor are presented. The transmigrated canine maintained its nerve supply from the original site. It is suggested that on routine evaluation of orthopantomograms when the dentist finds an excessive mesial inclination of the unerupted mandibular canine at 8-9 years associated with proclination of lower anteriors. increased axial inclination of the unerupted canine and an enlarged symphyseal cross section area of the chin, it is best to keep such a patient under routine evaluation.- - - - - - - - - - ranking = 0.2keywords = lower (Clic here for more details about this article) |
4/12. Pathological migration: an unusual cause of midline diastema.A 34-year-old female attended the orthodontic department and was concerned with a midline diastema in the lower arch. The diagnosis made was pathological migration owing to the habitual placement of her tongue stud on the incisal edges of her mandibular central incisors, forcing them apart. This article describes the causes of pathological migration, and other possible complications due to oral piercings.- - - - - - - - - - ranking = 0.2keywords = lower (Clic here for more details about this article) |
5/12. Transmigration of mandibular permanent canine in a Nigerian patient: presentation and management.A rare dental anomaly--transmigration is presented in a 12-year-old female Nigerian who was referred for orthodontic assessment. A right mandibular canine was found completely located in the left side of the body of the mandible having moved ectopically and progressively from its normal developmental site through the symphysis of the mandible. The importance of the radiological diagnosis with the use of panoramic radiograph is highlighted and the management briefly discussed.- - - - - - - - - - ranking = 5.4591869391315keywords = mandible (Clic here for more details about this article) |
6/12. Measurements of tooth movements in relation to single-implant restorations during 16 years: a case report.BACKGROUND: Osseointegrated implants behave as ankylotic abutments, and their positions are not affected by dentofacial changes. PURPOSE: To measure changes in occlusion in relation to single implants in one patient after more than 15 years in function. MATERIALS AND methods: One 25-year-old female was treated with two single implants in the upper central incisor and bicuspid area after trauma. Study casts made prior to treatment (1987) and after 16 years in function (2004) were scanned by means of an optical scanner. Using the palate as the reference, the models were placed in the same coordinate system and analyzed and compared in a computer-aided design (CAD) program. The results of the measurements of the casts were also compared with clinical photographs taken at the time of treatment (1988), after 9 years (1997), and after 16 years (2004) in function. RESULTS: The clinical photographs showed obvious signs of implant infraposition after 9 years. New crowns were made in the incisor region after 15 years (2002), but signs of infraposition were again present at the final examination (2004). Measurements of the casts indicated small tooth movements with a pattern of slight eruption of upper teeth combined with a palatal inclination, mesial drift, and lingual inclination and crowding of the lower anterior teeth. The small measured vertical eruption of the teeth was less than the observed clinical infraposition of the implant crowns, indicating that the vertical position of the palatal may have changed in relation to the implants as well. CONCLUSION: Obvious dentofacial changes may take place in adult patients. Teeth may adjust for this, and no major problems may arise in the dentate patient. However, because the positions of implants are not affected by dentofacial changes, other patterns of clinical problems can be seen when implant patients present with these changes. The character and frequency of these dentofacial changes that may compromise implant treatment in the long term are not yet known.- - - - - - - - - - ranking = 0.2keywords = lower (Clic here for more details about this article) |
7/12. Transmigration of impacted lower canine. Case report and review of literature.Retention, that is, a permanent tooth which is unerupted more than a year after the normal age of eruption, is a relatively rare event, except in the case of the third molars and the upper canines. Transmigration is defined as the phenomenon of more than half an unerupted impacted tooth crossing the midline. We report the clinical case of a twenty-year-old patient presenting transmigration of the lower left canine, with a type 4 transmigration pattern (Mupparapu). Likewise, we carried out a review of the literature of the cases that have been published on transmigration, updating the main aspects of this pathology.- - - - - - - - - - ranking = 1keywords = lower (Clic here for more details about this article) |
8/12. Spontaneous reeruption of a secondarily retained permanent lower molar and an unusual migration of a lower third molar.Secondary retention refers to cessation of eruption of a tooth after its emergence. It occurs mainly in the deciduous dentition, but it is also seen on rare occasions in the permanent dentition. Although ankylosis has been suggested as the main etiologic factor, the exact biologic mechanism of secondary retention is not yet known. This article presents a case of spontaneous reeruption of a secondarily retained permanent molar, which is very rare. It also describes an unusual migration of a lower third molar in the same patient.- - - - - - - - - - ranking = 1.8keywords = lower (Clic here for more details about this article) |
9/12. Extreme distal migration of premolar in association with an unusual fracture of the mandible.A case of an unerupted mandibular premolar, discovered as an incidental finding during investigation of a fracture of the mandible, is described. The possible mechanisms and outcome of migrations of such teeth are reviewed.- - - - - - - - - - ranking = 13.647967347829keywords = mandible (Clic here for more details about this article) |
10/12. Case report: treatment of dental asymmetry.The treatment of dental asymmetries often comprises several treatment alternatives. This case report describes the treatment alternatives for an asymmetry generated secondary to surgical removal of an odontoma that included the germ of the lower left lateral incisor. The opening of the space was chosen based on the patient's wish. The asymmetrical biomechanical force system used for the correction of the midline is presented as free-body diagram.- - - - - - - - - - ranking = 0.2keywords = lower (Clic here for more details about this article) |
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