11/67. Simultaneous presence of a congenitally missing premolar and supernumerary incisor in the same jaw: report of case.Supernumerary teeth and hypodontia can be regarded as opposite developmental phenomena. An eight-year-old girl presented a concomitant occurrence of a supernumerary tooth and two congenitally missing teeth. The supernumerary tooth was found in the left maxillary incisor region, while the left second premolar in the maxilla and the left lateral incisor in the mandible were congenitally missing. The supernumerary tooth showed a similar color and morphology to those of the maxilla lateral incisor, and the lateral incisor on the mesial side was diagnosed as a supernumerary tooth from dental age, eruption time, and mesiodistal crown dimension. The supernumerary incisor was guided labially to cure an anterior cross-bite, and the lateral incisor, canine, and first premolar were guided distally to compensate for the space left by the congenitally missing left second premolar.- - - - - - - - - - ranking = 1keywords = mandible, jaw (Clic here for more details about this article) |
12/67. A newly recognized syndrome of skeletal dysplasia with opalescent and rootless teeth.A Thai girl with skeletal dysplasia and dental anomalies was seen. Her anomalies consisted of disproportionately short stature, short neck, broad and depressed nasal bridge, broad chest in the anteroposterior dimension, kyphosis, widely spaced nipples, and protruded abdomen. Radiographic testing indicated that she had a large sella turcica, platyspondyly, hypoplastic acetabulum, and a small body of mandible. Both her deciduous and permanent teeth were equally opalescent, and most were rootless, with root development of the mandibular teeth more severely affected. Some maxillary roots were extremely short and tapered. Hypodontia was also observed. These findings represent a unique and hitherto undescribed syndrome of skeletal dysplasia with concomitant dental anomalies.- - - - - - - - - - ranking = 0.68715905640855keywords = mandible (Clic here for more details about this article) |
13/67. Van der Woude syndrome with mental retardation: case report.A report of a four and half-year old African patient with Van der Woude syndrome and mental retardation is reported. In addition to cleft lip/palate, hypodontia and lower lip pits; features consistent with Van der Woude syndrome, he manifested features consistent with growth and mental retardation. A genetic basis for these associated features can only be determined by detailed karyotype studies.- - - - - - - - - - ranking = 0.0058575183895966keywords = lower (Clic here for more details about this article) |
14/67. A newer approach in positioning teeth for dental prosthetics using lateral cephalometric, trans-cranial radiographs, and the Denar-Witzig articulator: a case of hypodontia in an adolescent patient.Traditionally in full denture prosthetics, anterior teeth are set on the models, independent of the effects on the face. More enlightened dentists, will then adjust the wax-up for speech, and some effects on the lips. Consideration is infrequently given to restoring the face by repositioning the teeth and mandible. Rarely is thought given to the effects of occlusion on the posture of the body. This report uses several techniques to restore facial esthetics and body posture. The techniques used include a cephalometric radiograph, transcranial radiographs, an articulator that has an adjustable "TMJ" (Denar-Witzig), and Symmetrigraf posture Chart. This clinical report describes a newer approach in the positioning of maxillary anterior teeth for a patient with hypodontia and nail dysplasia syndrome, and the overall effect of this approach on the face and posture of the patient. Conventionally the precise form of the maxillary wax rim is fabricated with considerable variation from technician to another, based on the technicians training. This variation is evident on the position of the labial aspect of the rim horizontally and vertically. The wax rim is then further adjusted chair side based on subjective evaluation of the face. The maxillary anterior teeth position is established without considering that the lip position is not yet accustomed to the wax rim.- - - - - - - - - - ranking = 0.68715905640855keywords = mandible (Clic here for more details about this article) |
15/67. Spaced dentition--open, close or redistribute?A spaced dentition can be due to various reasons such as hypodontia, tooth size discrepancy and impeded eruption. The dilemma for clinicians is whether to close, open or redistribute space. Closing space by orthodontics eliminates the need for prosthetic rehabilitation but it might compromise aesthetics and function. On the other hand, opening space is more complex and requires long-term maintenance. Based on these drawbacks, a careful occlusal analysis and an individualized treatment plan are mandatory for achieving the best result. The prognosis for closing space and substituting congenitally missing maxillary laterals with canines depends on factors such as overjet, lip support, crown colour, shape and root position. If these are unfavourable, opening space for prosthetic replacement is then preferred. Discrepancy between tooth and jaw size results either in spacing or crowding. The location of the spacing and the amount of overjet are important factors guiding the direction of treatment.- - - - - - - - - - ranking = 0.078210235897861keywords = jaw (Clic here for more details about this article) |
16/67. amelogenesis imperfecta: diagnosis and resolution of a case with hypoplasia and hypocalcification of enamel, dental agenesis, and skeletal open bite.A case of amelogenesis imperfecta with hypoplasia, hypocalcification of the enamel, congenital absence of teeth 12 and 22, delayed eruption of tooth 23, edge-to-edge incisal relationship, open bite, and bilateral posterior cross bite at the level of the first and second premolars is presented. Lateral skull teleradiography indicated a Class III skeletal pattern of maxillary origin associated with a dolichofacial pattern with multiple indicators of facial hyperdivergence. The patient presented a major esthetic abnormality of the face and required orthodontic treatment prior to a prosthetic solution with full-coverage metal-ceramic crowns in both the maxilla and the mandible. The diagnosis of cases such as this one and the therapeutic implications from an orthodontic and prosthetic standpoint are reported.- - - - - - - - - - ranking = 0.68715905640855keywords = mandible (Clic here for more details about this article) |
17/67. Clinico-pathological aspects of a residual natal tooth: a case report.A Japanese girl was referred to Osaka University Dental Hospital for examination of a tooth-like structure that had erupted following spontaneous exfoliation of a natal tooth in the lower left primary central incisor region. The structure had erupted at 6 months of age, and radiographic and clinical examination showed composition of pulp and dentin, but no enamel. On histological examination, the majority of the dentin area had a tubular dentin-like appearance, while the outer area of the root appeared to be composed of an osteodentin-like substance. Most of the dentin was covered by cementum. These findings suggest that the structure had originated from a developing remnant of the extracted natal tooth, which must have remained in the gingival tissues. We termed this calcified structure a residual natal tooth.- - - - - - - - - - ranking = 0.0058575183895966keywords = lower (Clic here for more details about this article) |
18/67. Central odontogenic fibroma-like tumors, hypodontia, and enamel dysplasia: review of the literature and report of a case.A patient with multiple odontogenic fibroma-like tumors in the mandible and enamel dysplasia is presented, bringing the total number of cases reported in the literature to 3. In addition to these manifestations, this case had hypodontia. The absence of associated teeth, the size of the lesions, the lingual expansion, and the green-yellow polarization of collagen with Picrosirius stains supported the neoplastic nature of the central odontogenic fibroma-like tumors in the case presented. Laminated psammomatous deposits distinguished the tumors from the world health organization-type central odontogenic fibroma.- - - - - - - - - - ranking = 0.68715905640855keywords = mandible (Clic here for more details about this article) |
19/67. Prosthetic treatment of oligodontia with a tooth-supported overdenture--a case report.An unusual case of oligodontia is reported in a 20 year old Nigerian male. It is unusual because of the isolated occurrence of the oligodontia which is unassociated with a family history or any other clinical features suggestive of specific syndromes or severe systemic abnormality. The patient presented with conically or peg shaped anterior and malformed posterior teeth in both the maxilla and mandible. Full mouth periapical radiographs revealed stunted roots, widening of the periodontal space and an unerupted tooth in the right mandibular premolar region. tooth-supported upper and lower removable partial overdenture were fabricated for him. This modality of treatment is a better choice which helps not only to preserve the alveolar ridge height and improve aesthetics, but also preserves the proprioceptive mechanisms associated with the periodontal membrane of natural teeth.- - - - - - - - - - ranking = 0.69301657479815keywords = mandible, lower (Clic here for more details about this article) |
20/67. ectodermal dysplasia with total anodontia: rehabilitation of a seven year old child.Total anodontia in a paediatric patient is a difficult prosthetic problem. Upper and lower complete dentures were fabricated for a 7 year old patient with anodontia. The problems encountered on account of the age of the child, the absence of alveolar processes, the tooth size and acceptability of the dentures are discussed herein.- - - - - - - - - - ranking = 0.0058575183895966keywords = lower (Clic here for more details about this article) |
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