1/7. Treatment of a patient with a Class II malocclusion, impacted canine, and severe malalignment.A case report of the orthodontic treatment of a male adolescent with a unilateral dental Class II malocclusion, an impacted canine, severe maxillary malalignment, and a canted maxillary anterior occlusal plane. Treatment consisted of full fixed appliances, extraction of the maxillary right first premolar, and surgical exposure of the impacted canine. Treatment vastly improved the patient's facial and dental esthetics. A Class I skeletal and dental relationship was established, along with a functional anterior guidance. The dental arches were coordinated and the dental midlines coincident with the midsagittal plane. This case report was presented to the American Board of orthodontics in partial fulfillment of the requirements for the certification process conducted by the Board.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
2/7. A European Board of orthodontics case report. Case category: severe skeletal discrepancy.OBJECTIVES: this 18.1 year-old girl presented with a chief complaint of progressive worsening of facial and dental esthetics, crowding, headache and facial pain. MATERIALS AND methods: clinically, she was at the end of her growth and exhibited a severe facial asymmetry, but with normal sagittal and vertical cranial relationships. Clicking in the right TMJ was evident. This was accompanied by a deviation upon opening, and pain in the joint. The pain she experienced during jaw movement, and upon palpation, was significant. There was a shift to the right from centric relation to intercuspal position. Intraorally, the tissues were normal, with mild tetracycline staining, still present primary canines, impacted third molars and upper permanent canines. Her first molars had fillings. Orthodontically, her occlusion was a severe Class III subdivision left, with a severe right-side crossbite, lower midline deviation to the right 6 mm, and a 1 mm lateral shift in intercuspal position. She also exhibited severe crowding and asymmetry in both arches. The sequence of her treatment was as follows: (a) extraction of primary canines and impacted third molars, surgical exposure of impacted canines, (b) lower occlusal splint for TMJ dysfunction and an upper arch fixed appliance for ideal alignment and leveling, (c) upper occlusal splint for the maintenance of TMJ function and lower arch fixed appliance for ideal alignment and leveling, (d) surgical skeletal correction, (e) post-surgical orthodontic finishing, (f) post-treatment retention.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
3/7. Utilization of third molars in the orthodontic treatment of skeletal class III subjects with severe lateral deviation: case report.AIM: This clinical report discusses the importance and use of third molars in the adult patient by presenting a case in which their use during orthodontic treatment allowed occlusal improvement. SUBJECT AND TREATMENT PLAN: The patient was a Japanese adolescent boy who had a skeletal Class III malocclusion with severe lateral deviation of the mandible, significant loss of posterior occlusal vertical dimension, due to premature loss of the maxillary and mandibular left first molars, and furthermore, both first molars had advanced carious lesions that had resulted in reduced crown heights and bilateral chewing surfaces. The mandible had shifted to the left, with a bilateral chewing pattern and a lack of posterior vertical alveolar height, which in turn had produced an abnormal occlusal plane and curve of Spee. The maxillary arch was expanded, the maxilla was moved downward and forward, and the mandible was moved slightly backward and rotated open to increase posterior vertical alveolar and crown height. The reconstruction of a functional occlusal plane was achieved by uprighting the posterior teeth to correct asymmetric posterior vertical alveolar and crown height, using a full multibracket system incorporating four third molars and closing the space from the missing first molars and extraction of the questionable first molars. RESULTS: A normal overbite and overjet and adequate posterior support and anterior guidance were established, achieving a better intercuspation of the posterior teeth. A favorable perioral environment was created, with widened tongue space to produce an adequate airway. A well-balanced lip profile and almost symmetric face were achieved using the four wisdom teeth without extraction of the four premolars. Subsequent mandibular growth, with development of posterior vertical alveolar height and temporomandibular joint adaptation, has resulted in an almost symmetric posterior vertical height and joint structure between right and left sides. These factors have contributed to the occlusal stability maintained for more than 5 years. CONCLUSION: In the growing patient, with missing and/or early advanced caries of the first molars, it may be more beneficial to plan occlusal improvement through extraction of the questionable first molar rather than premolar extraction. This method of treatment can equalize posterior vertical dimension and does not restrict tongue space. In addition, this treatment method addresses the clinician's concern about postorthopedic relapse due to tongue habits and eruption of the third molars.- - - - - - - - - - ranking = 4keywords = extraction (Clic here for more details about this article) |
4/7. Italian Board of orthodontics: case N. 2 adult malocclusion.OBJECTIVES: this 20,2 year-old girl presented with a class III malocclusion with severe crowding. MATERIALS AND methods: she was at the end of her growth with a severe skeletal and dental class III malocclusion with lower midline deviation and severe crowding. A concave profile, due to chin's prominence, was present. Lower vertical third of the face increased. No signs or symptoms of TMJ problems were present: lingual position of 12 and 22 is a potential problem for TMJ's health. The state of oral mucosa and gingiva was good. But oral hygiene was not good. Lower midline deviated 3 mm to the left side; canine and molar class I on the right side and class III on the left side. The sequence of her treatment was as follows: a) extraction of 15, 25, 35, 44; b) upper and lower arch fixed appliance for alignment, leveling, correction of lower midline and occlusal relationship; c) post-treatment retention.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
5/7. case reports: molar distalization with static repelling magnets. Part II.The following two nonextraction therapy case reports demonstrate four important points: (1) Static repelling magnets, with certain characteristic parameters, distalize molars rapidly without adverse effects that are clinically discernable. Beneficial properties such as considerably reduced patient compliance requirements for force application, reduced mobility and discomfort, and mostly bodily movement are demonstrated clinically. (2) Anchorage can be controlled by using conventional techniques of anchorage augmentation or force reduction. (3) Treatment can be satisfactorily completed and documented in accord with contemporary criteria, with conventional therapeutic methods, once the initial, most difficult, magnetic molar distalization is completed. (4) The mechanism of action that accounts for the bioeffects remains unclear. However, we hypothesize that observed reduction of mobility and discomfort during rapid movement, combined with basic research and other clinical data, are attributable to the simultaneous, synergistic property of the magnetic force field, which disrupts the local equilibrium and also the static magnetic bioeffect. Among others, one distinguishing and pertinent bioeffect may be an increased rate of osteogenesis and bone remodeling, which may be very dependent on correct dosage through a possible biologic window and the field geometry.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
6/7. Etiologic aspects and orthodontic treatment of unilateral localized arrested tooth-development combined with hearing loss.In this study a case has been presented involving localized, arrested maxillary tooth development, asymmetric maxillary development, and unilateral loss of hearing. No similar case seems to have been described before. The orthodontic treatment comprised extraction of four permanent tooth germs in the maxilla and autotransplantation of mandibular teeth, followed by the use of fixed orthodontic appliances and a one-unit bridge restoration. Etiologic aspects are discussed. It is suggested that a severe attack of mumps that involved massive swelling of the parotid glands immediately after chicken pox and measles at the age of 4 to 5 years, may have resulted in a neurologic reduction of hearing and arrested tooth development. The teeth in which root development in relation to mumps does not appear to have been reported previously, whereas hearing loss after mumps has been reported. In the search for verification of this possible connection, children with arrested tooth development should be examined for reduction of hearing, and children with hearing loss after mumps ought to have their dental development checked.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |
7/7. Cervicofacial actinomycosis in man.Two cases of advanced jaw destruction due to actinomyces is reported; one with diabetic diathesis and a history of tooth extraction the other had a trauma of the mandible with the fracture; good results were obtained with penicillin therapy.- - - - - - - - - - ranking = 1keywords = extraction (Clic here for more details about this article) |