Comparative study of the nickel presence in saliva of patients em treatment with metalic or esthetic orthodontic brackets

Faculdade e Centro de Pesquisas São Leopoldo Mandic0 个研究点开始时间: 2016年4月29日最近更新: 2023年5月29日

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•Control groups consisted of patients who had never undergone movable or fixed orthodontic treatment; more than 15 years-old; both genders. Metal group consiste of patients undergoing between one month up to one year of orthodontic treatment; with a fixed appliance composed of stainless steel brackets; with metallic archwire; four metal bands on the permanent molars; more than 15 years-old; a minimum of 20 teeth with orthodontic accessories; without the use of any type of palatine or lingual devices welded to the bands; or auxiliary extra-oral orthodontic appliances; both genders. Esthetic group consisted of patients undergoing between one month up to one year of orthodontic treatment with a fixed orthodontic appliance composed of self-ligating polycarbonate brackets; with metallic archwire coated with esthetic cover; more than 15 years-old; a minimum of 20 teeth with orthodontic acessories; without the use of any type of palatine or lingual devices welded to the bands; or auxiliary extra-oral orthodontic appliances; both genders.

•Smokers; patients with metal prosthetic parts; amalgam restorations; or with periodontal disease; those using any type of medication in the 24 hours preceding saliva sample collection; or those with a history of orthodontic treatment prior to the present treatment; more than 40 years-old.

发起方

Faculdade e Centro de Pesquisas São Leopoldo Mandic