1/98. Treatment of an impacted dilacerated maxillary central incisor. Impacted incisor With Dilaceration refers to a dental deformity characterized by an angulation between crown and root causing noneruption of the incisor. Surgical extraction used to be the first choice in treating the severely dilacerated incisor. In this article, a horizontally impacted and dilacerated maxillary central incisor was diagnosed radiographically. By combining two stages of the crown exposure surgery with light force orthodontic traction, the impacted dilacerated incisor was successfully moved into proper position. However, long-term monitoring of the stability and periodontal health is critical after orthodontic traction. ( info) |
2/98. tongue muscle activity after orthodontic treatment of anterior open bite: a case report. A case report of a Class I malocclusion with an anterior open bite and bimaxillary dental protrusion was presented. The patient had a tongue thrust swallow and slight lisping. After the treatment, significant adaptation in electromyographic pattern of genioglossus muscle activity during swallowing was determined. However, remarkable change in the electromyographic pattern of the genioglossus muscle did not occur during chewing. ( info) |
3/98. orthodontics and orthognathic surgery in the combined treatment of an excessively "gummy smile". This report highlights the benefits that can be achieved with the combined orthodontic and orthognathic surgical approach where the presenting malocclusion is related primarily to an underlying skeletal malrelationship. The patient experienced a dramatic improvement in her facial form and occlusion, and a reduction of her excessively "gummy smile". ( info) |
4/98. open bite, dental alveolar protrusion, class I malocclusion: A successful treatment result. This case report describes the treatment of a dentoalveolar protrusion, Class I malocclusion with an anterior open bite. The 21-year-old woman presented with a significant anteroposterior and vertical skeletal discrepancy. Her face was convex with procumbent lips. Intraorally, she had an anterior open bite of 4 mm, mild crowding, and an overjet of 4.5 mm. First premolar extractions in conjunction with tongue therapy and high pull headgear were used to reduce protrusion and close anterior open bite. Modification of a tongue thrust habit allowed conventional orthodontic treatment to correct this significant malocclusion and provide stability over the last 4 years. ( info) |
5/98. Treatment of a Class I bimaxillary protrusive malocclusion with a high mandibular plane angle: An American Board of orthodontics case report. A case report of the orthodontic treatment of a male adolescent with a Class I bimaxillary protrusive malocclusion, complicated by a vertical growth pattern and high mandibular plane angle. Treatment consisted of extraction of maxillary second premolars, mandibular first premolars, use of a transpalatal bar, occipital pull headgear, and light wire mechanics. An acceptable result was achieved, with a decrease in the facial axis, decrease in lip strain, and an attractive full smile. 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. ( info) |
6/98. cleft lip and palate management with maxillary expansion and space opening for a single tooth implant. An adult Class I malocclusion with a unilateral cleft lip and palate is presented. The maxillary transverse deficiency was managed with orthopedic expansion and the missing lateral incisor with space opening, bone grafting, and single tooth implant. The mild maxillary retrognathia and deficient lip support was managed with dental compensation. ( info) |
7/98. 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. ( info) |
8/98. Treatment of a Class I malocclusion with a carious mandibular incisor and no Bolton discrepancy. Occasionally orthodontists must plan treatment for a patient with extensive caries or a traumatic injury to one mandibular incisor. If the patient has a Bolton discrepancy, one treatment option could involve extraction of the affected mandibular incisor. However, if the patient does not have a Bolton discrepancy and a mandibular incisor is extracted, the treatment becomes more complicated. This case report will present and discuss the ramifications of extracting one mandibular incisor in a patient without an anterior tooth-size discrepancy. The CDABO Student Case Selection Committee chose this case for publication. ( info) |
9/98. Orthodontic treatment for an adolescent with a history of acute lymphoblastic leukemia. This case report describes the treatment of a Class I malocclusion that involved ectopic position of the maxillary permanent left canine and the mandibular permanent right second molar. The patient was an adolescent who presented with a medical history that was remarkable for diagnosis and treatment of acute lymphoblastic leukemia (ALL). Dental history was remarkable for significant, generalized shortened roots that were more severe in the mandibular arch. The treatment included fixed appliance therapy in the maxillary arch only and surgical luxation of the mandibular second molar. Successful integration of the maxillary permanent left canine was accomplished without excessive flaring of the maxillary permanent incisors or disruption of the buccal segment occlusion. The risk of external root resorption on teeth with abnormal root morphology, as a result of fixed appliance therapy, should be weighed against the relative benefits that are expected from treatment. ( info) |
10/98. Craniofacial characteristics of klippel-feil syndrome in an eight year old female. A female eight year, one month old patient with klippel-feil syndrome has been introduced. General appearance of the patient was characterized by short neck with limited head movements, craniofacial asymmetry, low posterior hairline and a short stature. Cephalometric analysis revealed a Class I dentoskeletal pattern with an excessive mandibular plane angle and fused cervical vertebrae. Panoramic radiogram showed congenitally missing lower second premolars and right central incisor. ( info) |