ABSTRACT
This case report illustrates the successful management of a case of mutilated maxillary incisors in a 13 year old patient through a sequence of therapy designed to closely coordinate the various disciplines, endodontics, restorative dentistry and orthodontics, involved. Endodontics was directed towards the control of the infected pulp, restorative treatment was to reconstruct the broken down teeth in stages which were essential in the sequence of treatment, and orthodontics was involved in the achievement of functional occlusion and alignment. The comprehensive treatment approach combined to achieve satisfactory aesthetics and function.
Subject(s)
Dental Restoration, Permanent , Esthetics, Dental , Malocclusion/therapy , Orthodontics, Corrective , Adolescent , Dental Caries/therapy , Female , Humans , Incisor/pathology , Root Canal TherapyABSTRACT
Changes in the mandibular arch were evaluated in 32 cases of lower first premolar extraction without appliance therapy. There was a mean reduction in the irregularity index and extraction space of 52 percent and 45 percent respectively. Intercanine distance increased in 65 percent of the cases whilst intermolar distance decreased in 63 percent of the cases. Clinical improvement in the crowding of lower incisors and closure of the extraction space was contributed by the distal movement of the canines and the mesial movement of the molars.
Subject(s)
Malocclusion/therapy , Space Maintenance, Orthodontic/methods , Tooth Movement Techniques/methods , Adolescent , Bicuspid , Child , Dental Arch/pathology , Female , Humans , Incisor , Male , Mandible , Tooth ExtractionABSTRACT
This survey outlines the proportion of the various features of occlusion in the permanent dentition of the three ethnic races, Chinese, Malay and Indian in Malaysia. The mean age of the high school children surveyed was 16.4 years. The Chinese and Malays had almost similar distribution of the different types of occlusion. There was a significantly higher prevalence of Class III occlusion among the Chinese and Malays as compared to the Indians. In addition, an edge to edge incisor relationship seemed to be a norm in the Chinese (54%) and Malays (50%) whilst the overjet of between 2-4 mm and the overbite of between 1/3 to 2/3 was more normal to Indians (50%). A crowded dentition was also a norm for the three races.
Subject(s)
Dental Occlusion , Malocclusion/epidemiology , Adolescent , China/ethnology , Female , Humans , India/ethnology , Malaysia/epidemiology , MaleSubject(s)
Dental Occlusion , Tooth, Deciduous , Asian People , Child , Child, Preschool , Female , Humans , Malaysia , Male , Random Allocation , White PeopleSubject(s)
Dental Occlusion , Dentition, Mixed , Ethnicity , Child , Child, Preschool , China/ethnology , Diastema , Humans , India/ethnology , Malaysia , Malocclusion/ethnology , Tooth, DeciduousABSTRACT
A set of like-sexed male twins with the same malformation syndrome and exhibiting identical anomalous alterations of the craniofacial complex were studied in detail. The right and left coronal and left lamboidal sutures were prematurely synostosed in both specimens. The cranial base exhibited a mediolateral asymmetry, with the right half larger than the left. The occipital bone demonstrated the greatest abnormality, including bilateral clefting of the basioccipital component and alterations in the size and shape of the exoccipital bone. In lateral view, the cranial base was flattened and the ventral flexure occurred between the two components of the basioccipital. The odontoid process of the second cervical vertebra was rotated anteroinferiorly and formed part of the cranial floor. Histologically, the bilateral clefts of the basioccipital bone were united by fibrous connective tissue, and the central area of union contained chondroid-like bone. The cartilaginous spheno-occipital synchondrosis and the epiphyseal cartilage of the finger demonstrated similar dystrophic alterations. The brain was normal but exhibited external cerebral deformation secondary to aberrant skull shape.
