Biomedical subjects

N A Mandall

Publications and source records attributed to N A Mandall.

21 records · Page 2Linked to original sources

PubMed1999

The effectiveness and efficiency of hygienists in carrying out orthodontic auxiliary procedures.

The aim of this study was to compare the ability and efficiency of dental hygienists, after preliminary training as orthodontic auxiliaries, with post-graduate orthodontists. The study was cross-sectional and prospective. The sample consisted of five second-year hygienists and five qualified orthodontists from Manchester University Dental Hospital. All subjects carried out a range of orthodontic exercises on phantom head typodonts. The ability and efficiency for each task was measured, and comparison made between hygienists and orthodontic groups. There was no statistically significant differences between hygienists and orthodontists in terms of their ability to carry out potential orthodontic auxiliary procedures. However, orthodontists were more efficient (P < 0.05). The ability of hygienists to carry out potential orthodontic auxiliary tasks after appropriate training is supported. Trained orthodontists are more efficient than newly trained hygienists in carrying out potential orthodontic auxiliary tasks.

Dental Hygienists↗

PubMed1999

Radiation reduction using a modified collimated lateral skull radiograph during orthodontic treatment.

The aim of the study was to investigate whether routine 'during-treatment' clinical cephalometric measurements could be obtained from a lateral skull radiograph collimated to show the maxilla and mandible. The sample consisted of 30 lateral skull radiographs, taken during treatment, of patients with upper and lower fixed appliances. These conventional cephalograms (CC) were copied to give a radiograph with modified collimation (MC) showing the maxilla and mandible and the dentition only. Both types of radiographs were digitised and the readings compared to determine whether the same during-treatment cephalometric values were obtained from both types of radiographs. The limits of agreement obtained, when comparing cephalometric values obtained from the CC and MC lateral skull radiographs, were only marginally larger than those for CC alone. Therefore, the use of an MC lateral skull radiograph to show the maxilla and mandible is a viable alternative for cephalometric measurements for patients wearing two arch fixed appliances.

Cephalometry↗

PubMed1998

Does the ethnicity of teenage children influence oral self perception and prevalence of dental disease?

AIM: The primary aim was to evaluate the effect of ethnicity, social deprivation and oral health on oral self perceptions of 14-15-year-old Asians and Whites. A secondary aim was to assess the influence of ethnicity and social deprivation on oral treatment need in the same sample. DESIGN: A cross-sectional epidemiological study. DATA SOURCE: A stratified, random sample of 408 14-15-year-old Asian and White children from schools in Manchester. METHOD: Information was collected on oral self perceptions using a questionnaire and on oral treatment need with a clinical examination. RESULTS: Multivariate data analysis revealed that oral treatment need, but not ethnicity or social deprivation, was an important predictive variable with respect to oral self perceptions. Ethnicity was the only variable to influence periodontal treatment need. Social deprivation influenced the level of untreated caries. CONCLUSIONS: 1. Socially deprived children have higher caries levels than their more affluent counterparts and this is evident regardless of ethnic background. 2. Although Asian 14-15-year-old children have a higher periodontal treatment need than Whites, there was no ethnic influence on how they perceive their oral health. 3. Oral treatment need is an important factor with respect to oral self perceptions.

Adolescent↗