A Clinical Guide to Orthodontics by J. Sandy

By J. Sandy

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One Hundred Years Ago A letter to the BDJ highlighting the concerns of one of its members. Sir, - There is a movement on foot to establish a “Section” of Dental Surgery in the British Medical Association, of which membership is only possible to those members of the British Dental Association who are on the Medical register. I beg you most emphatically to protest against any new section, or society of dental surgeons being formed to which every member of the British Dental Association is not eligible.

In these situations stability is reduced, the appearance is poor and the tooth may suffer from unwanted non-axial loading ➠ Fig. 4a Both the upper lateral incisors are in cross bite Fig. 4b An upper removable appliance was used to tip the laterals over the bite Fig. 4c The cross bites have been corrected. Note the reduction in the overbite Fig. 4d 6 months later the upper right lateral has relapsed into cross bite due to the reduced overbite result in excessive non-axial loading of the tooth as illustrated in Figure 3b.

Recognition of specific risk factors, accurate radiographs and interpretation of radiographs at the outset of treatment are important if root resorption is to be minimised. Once resorption is recognised clinically during treatment, light forces must be used, root length monitored six monthly with radiographs and treatment aims reconsidered to maximise the longevity of the dentition. 23, 24 • Root resorption is inevitable with fixed appliance treatment • On average 1-2 mm of apical root is lost during a course of orthodontic treatment • Previously traumatised teeth have an increased risk of root resorption Periodontal tissues Fixed appliances make oral hygiene difficult even for the most motivated patients, and almost all patients experience some gingival inflammation (Fig.

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