Prevention and dental practitioners in Northern Ireland

Journal of Dentistry,

11, No. 2, 1983,

JOURNAL

OF DENTISTRY

Abstracts

from

this

88 Prinred in Great Britain

pp. 187-l

issue

CAUSTON B. E. (editor) Dental materials: 1980 literature review. Part 2.J. Dent 11 (1983) 95-132. This paper, which is presented in two parts, reviews the work on dental materials published in 1980. Included in Part 2 are sections on dental biomechanics, amalgam, corrosion, casting alloys, soldering, electromaterials, metals and magnetic plating, alloys for orthodontic use. Part 1 included sections on composite filling materials, dental microleakage, fissure sealants, ceramics, acrylic resins, impression materials, endodontic cements, adhesion, dental materials, model, die, mould and investment materials. SWALLOW J. N. Prevention and dental practitioners in Northern Ireland. J. Dent 11 (1983) 133-138. General dental practitioners in Northern Ireland were asked to choose from a list of widely accepted preventive procedures which they might advocate forthe prevention of caries and gingival disease. Older dentists ware less inclined to advise fluoridation or the use of fluorides than their younger colleagues. Regular dental attenders reflect many of the practitioners’ views except the restriction of dietary sugar and were less enthusiastic regarding fluoridation. MACGREGOR A. R., MILLER T. P. G. and FARAH J. W. The support of bounded saddles. J. Dent 11 (1983) 139-150. This article reviews the literature on planning the support of bounded saddles of removable partial dentures or fixed bridges. Three-dimensional photoelastic analysis was used to examine stresses on removable partial dentures of different design, and possible model structure changes raised for further investigation. TURNER C. H. A method of producing identical east gold posts for experimental purposes. J. Dent 11 (1983) 151-153. A method of producing, for experimental purposes, identical cast gold posts using

orthodontic tubing and a waxing been developed and is described.

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SAWYER 0. R., LOGAN W. W., OLERU U. G., ALLISON M. J. and PEZZIA A. The effects of attrition on the preColumbian Indian arch length. J. Dent 11 (19831 154-158. A statistically significant difference is shown between the mesiodistal crown diameters of unworn and worn permanent mandibular teeth of pre-Columbian Peruvian Indians. It would appear from the data presented that prior to the interproximal attrition emergence of the third molar could make space for the unimpeded eruption of these teeth. This is substantiated with data from previous studies where it was found that in this population those cultural groups with the highest attrition indices had the lowest incidence of impacted teeth while the culture with the lowest level of attrition had the greatest incidence of impacted teeth (Sawyer, 1977; Sawyer et al., 1978c). The relationship of these findings with a modern orthodontic theory technique of and treatment is noted. RITSON C. Commercial and political influence on dental health. 1. The effect of agricultural policies. J. Dent 11 (1983) 159-163. Agricultural policy is only one of a number of factors influencing the cost and availability of agricultural products. The Common Agricultural Policy (CAP) of the European Economic Community (EEC) was devised principally to improve rural prosperity, not to improve the health of those people in the EEC. In order to do this it is necessary to control agricultural prices against the vagaries of world market prices by a complex system of target prices, import levies, intervention prices, storage of excess produce and export subsidies. In the case of sugar, this is further complicated by an undertaking to purchase an agreed amount annually from Commonwealth countries. The effect of this, for example, is to raise the price of sugar in the EEC above world prices and therefore to reduce consumption,