RESUMEN
The purpose of this study was to compare the effectiveness of dental checkups incorporating tooth-brushing instruction (TBI) with that of conventional dental checkups. A team consisting of one dentist and three dental hygienists saw an average of 60 employees per day on-site at an airline company. The patient's teeth were stained with a disclosing tablet and the results recorded on a Plaque Control Record (PCR) chart. The patient was then given TBI. After recording the relevant data, including TBI given and PCR scores, the charts were stored. Checkups were performed in a total of 3,854 patients between 2001 and 2005 and changes in annual scores investigated. In addition, annual shifts in mean score in patients receiving checkups over all five years were compared with those in patients receiving checkups for the first time in each of the five years. The mean score in patients receiving a checkup in 2001 was 35.1%, declining by 2.6 points to 32.5% in 2005. Among patients receiving checkups over all five years, the mean score in 2001 was 34.0%, declining by 11.2 points to 22.8% in 2005. Over the five-year period, the mean score in patients receiving checkups was 34.1%. In patients receiving checkups over all five years, the proportion with PCR scores <30% increased each year. This was because the number of patients with PCR scores ≥60% decreased each year. These findings suggest that TBI is effective in reducing poor plaque control. When compared with in patients who had not received TBI, five consecutive years of checkups was clearly effective. These results indicate that checkups incorporating TBI are more effective than conventional dental checkups that simply check for caries. In future, this type of checkup should contribute to improved preventative dentistry with minimal intervention.
Asunto(s)
Atención Odontológica , Educación del Paciente como Asunto , Cepillado Dental/métodos , Colorantes , Dispositivos para el Autocuidado Bucal , Placa Dental/diagnóstico , Placa Dental/prevención & control , Índice de Placa Dental , Estudios de Seguimiento , Humanos , Higiene Bucal/instrumentación , Índice Periodontal , Resultado del TratamientoRESUMEN
Abnormalities in number of teeth are occasionally noted in clinical cases. Many theories have been proposed as regards the causes of the occurrence of supernumerary teeth, including atavism theory, mechanical tooth germ separation theory, tissue induction theory, and dental laminar morphological disturbance theory. However, none of these theories alone offers a sufficient explanation for this phenomenon. The incidence of supernumerary permanent teeth is approximately 1-3%. These are the maxillary anterior teeth, the maxillary molars, and the maxillo-mandibular premolars in terms of descending order of site of occurrence. On the other hand, incidence in the mandibular anterior tooth area, of which there have been few detailed reports, is about 0.01%, a markedly low value. In this paper, we report two rare cases of supernumerary teeth in the mandibular incisor area. We discuss their etiology and orthodontic treatment, and detail a differential diagnosis between the normal and supernumerary teeth. We found that it was difficult to establish a clear etiology and differentiation between the normal and supernumerary teeth.
Asunto(s)
Dientes Fusionados , Incisivo/anomalías , Diente Supernumerario , Adolescente , Diagnóstico Diferencial , Femenino , Dientes Fusionados/complicaciones , Dientes Fusionados/cirugía , Humanos , Masculino , Maloclusión/complicaciones , Maloclusión/terapia , Mandíbula , Ortodoncia Correctiva , Radiografía Panorámica , Extracción Dental , Diente Supernumerario/complicaciones , Diente Supernumerario/cirugíaRESUMEN
OBJECTIVES: The purpose of this study was to identify the occlusal status of elderly Japanese over 80 years with at least 20 teeth. MATERIALS AND METHODS: The study enrolled 76 elderly Japanese (44 male, 32 female) with a mean age of 82 years and an average of 25.7 remaining teeth. The study consisted of intra-oral examination, intra-oral and facial photographs, radiographs and impressions for study casts. RESULTS: No gender difference was observed in age or number of remaining teeth. Anteroposterior occlusal relationship was characterised by maxillary protrusion in 67.6%, acceptable overjet in 31.0%, and anterior crossbite in 1.4%. Vertically, deep bite was noted in 33.8%, acceptable overbite in 64.8%, and open bite in 1.4%. Most of the subjects had either Angle class I (68.4%) or class II (25.7%) canine relationship. Only 3.9% of the subjects had upper anterior crowding. Lower anterior crowding was observed in 23.7%, but tended not to be severe. CONCLUSION: These results indicate that Japanese who attained the goal of '8020' have a relatively good occlusion.
Asunto(s)
Oclusión Dental , Arcada Parcialmente Edéntula/fisiopatología , Factores de Edad , Anciano de 80 o más Años , Femenino , Humanos , Japón , Arcada Parcialmente Edéntula/diagnóstico por imagen , Masculino , Maloclusión/clasificación , Maloclusión/diagnóstico , Maloclusión Clase II de Angle/diagnóstico , Modelos Dentales , Mordida Abierta/clasificación , Mordida Abierta/diagnóstico , Fotograbar , Radiografía , Factores SexualesRESUMEN
Antley-Bixler syndrome is a disorder characterized by craniosynostosis, midface hypoplasia, choana blockade, and radiohumeral synostosis. However, the features of occlusion remain unclear. In this paper, we report a case of Antley-Bixler syndrome, a 7-year-old boy, from the viewpoint of orthodontics. From lateral cephalometric head film analysis, remarkable retardation of the anterior subcranial base, infraorbitale, and maxilla were notable, as was vertical growth restriction of the maxilla. The choana blockade tendency was also recognized. Moreover, although reverse occlusion was present, a mandibular retrognathic tendency was also present, and a short ramus mandible, remarkable mandibular vertical growth pattern, and skeletal open bite were present. In the dentition, two of the lower incisors were missing, and the present lower incisors were large. Maxillary and mandibular first molars were delayed in eruption. For treatment, the solutions to such remarkable skeletal problems were limited by the insufficiency of recovery of cranial formation after the operation. We planned a non-surgical treatment to expand the maxilla. It will be necessary to continually consider the treatment of his malocclusion as he continues to grow.