Comparative analysis of periodontal pain and quality of life in patients with fixed multibracket appliances and aligners (Invisalign®): longitudinal clinical study.

BACKGROUNDS: The aim of this longitudinal clinical study is to analyse and compare according to location, degree and type, the pain presented by patients during their first year of treatment, as well as the quality of oral life after the placement of two types of orthodontic appliances: conventional brackets and removable Invisalign ® aligners. METHODS: The sample consisted of 140 patients grouped into 2 study groups of 70 patients each. The first group (brackets group- BG), with fixed multibracket appliances, using the MBT technique and a 0.022" slot. The second group (invisaling group- IG), in treatment with removable aligners (IG), using the Invisalign ® system. They were providen with a questionnare where they had to record the degree (mild, moderate or intense), the type and location of the pain monthly during the first year of treatment. The second form was the Spanish version of the OHIP-14, oral quality of life questionnaire, which was provided the twelfth month after the start of treatment. RESULTS: In both groups, we found that the most frequent location of pain occurred during the first phase: mandibular for the IG group and maxillary in the BG group. Throughout the whole analysis, the intensity was mild-moderate with lower values in the conventional brackets' group. The BG group reported acute pain while the IG group reported sensitive pain during the first month; later both reported sensitive pain. CONCLUSIONS: There are differences in terms of periodontal pain in its degree, location, and type according to the different orthodontic techniques used. TRIAL REGISTRATION: The study was approved by the bioethics committee of the University of Salamanca (USAL_20/516).

Medicina de seguro: estudo sobre a conceituaçäo e área de competência médica no seguro privado / Insurance medicine: study at concept and area of medic competency in private insurance

Esta obra vem preencher um vazio editorial. Vai sem dúvida tornar-se livro de consulta obrigatória dos profissionais do seguro, sempre que tenham carência de informaçäo ou conhecimento sobre aspectos médicos das relaçöes entre segurados e seguradoras. Nos seguros de pessoas, em que a tradiçäo é a da lida com a biometria, desde muito tempo vem ocupando crescente espaço, a preocupaçäo, também, com a biologia e com a medicina. Este livro é de importância fundamental, aqui no Brasil, para os que tenham interesse, direto ou indireto, pelo assunto