Biomedical subjects
Publications and source records attributed to G J Christensen.
Four categories of materials are popular for restoration of slightly to moderately carious pediatric primary teeth: amalgam, composite resin, glass ionomer and resin-modified glass ionomer. Practitioners looking for a material to replace dental amalgam for restoration of pediatric Class II areas will find that the most promising and growing technique is using resin-modified glass ionomer.
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Ridge preservation should be a commonly used dental procedure. However, it is not. Simple ridge preservation techniques, using materials such as HTR, provide undeniable esthetic and functional benefits to patients and dentists.
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Fixed prosthodontics has increased in need and demand significantly over the past 40 years. This increase is related to an ageing population with more teeth retained. Diagnosis and treatment planning is more complex and requires help from qualified auxiliary persons to educate an older population, many of whom have not had major oral treatment in the past. Building-up teeth is necessary for many, and bonded composite and amalgam are commonly used. Prefabricated posts and cores comprise a growing majority of restorations when such therapy is needed. Bonded resin cement, holding titanium or titanium alloy posts, and supporting composite cores are very popular. Proper tissue management provides excellent impressions. Pre-operative anti-inflammatory rinses, and the double-cord tissue management technique, can provide excellent impressions. Addition reaction silicones are often the impression materials of choice. Dentists are encouraged to use all types of crowns including metal, porcelain-fused-to-metal, and all-ceramic. Glass ionomer cements are used most frequently, but hybrid glass ionomers are challenging actively and may eventually replace straight glass ionomers. Fixed prosthodontics deserves increasing dental and continuing education time because of the increased need.
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Resin restorations for anterior teeth, properly planned and well placed, should be expected to serve many years. Small resin restorations in anterior teeth may even be lifetime restorations. Class III, IV and V resin restorations with large facial display are best when hybrid resin is placed internally and microfill resin is placed facially. Restorations without significant facial display are best treated with hybrid resin alone. Although new, more refined resin systems will come, the current state of the art for anterior resin restorations is excellent and certainly the best it has ever been.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
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Rubber dam use for restorative dentistry is far too low. If practitioners realized rubber dam's advantages and increased treatment quality, its use would be irresistible. Few other dental procedures offer both an increase in operating speed and treatment quality. To save the most time, competent auxiliary staff should be taught to place rubber dams before the clinical procedure begins. (Additional information on rubber dam placement by auxiliary staff is available from Dr. Christensen.)
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