PubMed · 3519674
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H Droschl, H P Bantleon. 1986. Bracket positioning gauge.. https://pubmed.ncbi.nlm.nih.gov/3519674/
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Organic compounds of phosphorus have been developed for a range of applications in clinical dentistry. These include dentine bonding agents, restorative materials and therapeutic agents, such as active ingredients in anticaries mouthwashes. A characteristic feature of all of these applications is the good bonding of the phosphorus compound to the tooth. This review highlights the progress that has been made to date in preparing functional and durable organophosphorus bonding agents and cements, and includes coverage of recent synthetic work aimed at preparing improved organophosphorus molecules for this application. The review concludes that this remains a promising field of chemistry to explore in the search for improved, clinically useful dental materials.
Despite the popularity of metal-ceramic restorations, the bonding mechanism remains the subject of theoretical discussion. Different experimental designs to evaluate bond strengths at the metal-ceramic interface are described. The effects of various stresses with each design are also discussed. A predictive experimental design should minimize variables and result in the least residual interfacial stresses. Dentists and dental technicians should benefit from comparisons of existing tests, and the discussion encourages introduction of more comprehensive approaches.
A variety of luting cements are available for use with orthodontic bands. This in vitro study was conducted to evaluate the force required to cause debanding when zinc phosphate, polycarboxylate and glass ionomer cements are used as the luting agents; and to determine whether sandblasting the inner surface of orthodontic bands affects the force required to deband. The data were obtained by debanding cemented stainless steel bands from 20 extracted third molars. Glass ionomer cement demonstrated the highest mean force value required to deband both the nonsandblasted and sandblasted orthodontic bands. Sandblasting the inner surface of the bands proved to be a significant (P < 0.001) method for increasing band retention for all three cements tested. The mean force required to deband using zinc phosphate, polycarboxylate and glass ionomer cements was approximately doubled following sandblasting.