Reliability of digital orthodontic setups.

OBJECTIVE: To evaluate the reliability of digital orthodontic setup technology by comparing it with manual setups and models cast at the end of orthodontic treatment. MATERIALS AND METHODS: Initial models, manual setups, and final models of 20 patients were used. The initial and final models, as well as the manual setups, were scanned using a 3Shape R-700 scanner, while the digital setups were fabricated based on the initial models using 3Shape OrthoAnalyzer software. Evaluation of the models based on the manual setup, digital setup, and final models of each patient was performed using the following linear measurements: intercanine widths, intermolar widths, and length of the upper and lower dental arches. RESULTS: The results disclosed that none of the measures assessed through the manual setup, digital setup, and final models showed statistically significant differences (P > .05). CONCLUSIONS: Based on these findings, it can be inferred that digital setups are as effective and accurate as manual setups and constitute a tool for diagnosing and treatment planning that can be reliably reproduced in orthodontic treatments.

Effect of laser phototherapy on the hyalinization following orthodontic tooth movement in rats.

OBJECTIVE: We aimed to assess histologic changes after the use of laser phototherapy (LPT) during induced tooth movement with 40 g/F on young adult male rats. BACKGROUND DATA: Hyalinization is a sterile necrosis at the pressure zone of the periodontal ligament observed during the initial stages of the orthodontic movement, and extensive hyaline areas might cause an important delay in the tooth movement. The use of LPT is considered an enhancement factor for bone repair, as it stimulates microcirculation as well as the cellular metabolism. MATERIALS AND METHODS: Thirty animals were divided into two groups (n=15), named according to the time of animal death (7, 13, and 19 days). Half of the animals in each group were subjected to irradiation with infrared (IR) laser (λ790 nm, round shaped beam, 40 mW, continuous wave (CW), diameter=2 mm (0.0314 cm(2)), 1.273 W/cm(2), time=2×112 sec+1×275 sec (total time 499 sec), 2×142.6/4.48 J+1×350/11 J, 635.2 J/cm(2)/20 J/ session), during orthodontic movement, the other half were used as nonirradiated controls. After animal death, specimens were sectioned, processed, and stained with hematoxylin and eosin (HE) and Sirius Red, and were used for semi-quantitative histologic analysis by light microscopy. Data were statistically analyzed. RESULTS: We demonstrated that LPT positively affected an important aspect of dental movement; the hyalinization. In the present study, we found a significant reduced expression of hyalinization after 19 days. On irradiated subjects, hyalinization was increased at day 7 with significant reduction at day 13. CONCLUSIONS: It is possible to conclude that the use of laser light caused histologic alterations during the orthodontic movement characterized by increased formation of areas of hyalinization at early stages, and late reduction when compared to nonirradiated animals.

O processo Clinical Caritas de Jean Watson naassistência de enfermagem brasileira: uma revisão sistemática / El proceso Clinical Caritas de Jean Watson en la enfermería brasileña: una revisión sistemática / The process in Clinical Care Caritas’ Jean Watson in Brazilian of nursing: a systematic review

Esta revisão bibliográfica sistemática teve como objetivo analisar a aplicação do Processo Clinical Caritas, reformulação da teoria do cuidado humano de Jean Watson, através de artigos cientícos publicados. Apenas cinco produções foram encontradas nas bases de dados LILACS, SciELO, MEDLINE e BDENF, após rigorosa aplicação dos critérios de inclusão. Os resultados mostraram que 80% das publicações são do ano de 2006 e 60% realizadas na região Sul. As autoras são enfermeiras pós-graduadas que atuam na área acadêmica. O Clinical Caritas foi aplicado em algumas áreas da assistência em enfermagem, porém há uma necessidade de mais produções que apliquem essa forma de abordagem do cuidar, ainda pouco conhecida, buscando melhorar a qualidade do cuidado prestado ao paciente e a comunidade (AU)

Esta revisión sistemática tiene por objetivo revisar la aplicación del proceso Clinical Caritas, la reformulación de la teoría del cuidado humano: Jean Watson, a través de trabajos científico. Sólo cinco se encontraron productos en la bases de datos LILACS, SciELO, MEDLINE y BDENF después de la aplicación de rigurosos criterios de inclusión. Los resultados mostraron que el 80% de las publicaciones son de 2006 y el 60% realizados en el Sur. Los autores son enfermeros de postgrado, que trabajan en el mundo académico. Las Clínical Caritas se aplicó en algunas áreas de la atención en la enfermería, pero no hay necesidad de una mayor producción de aplicar este enfoque a la atención, sin embargo, poco conocido, que buscan mejorar la calidad de la atención al paciente y la comunidad (AU)

This systematic review aims at reviewing the implementation of Clinical Caritas processes, reformulation of the theory of human caring: Jean Watson, through published scientic papers. Only five products were found in the databases LILACS, SciELO, MEDLINE and BDENF afer a rigorous application of inclusion judicious. The results showed that 80% of the publications are from 2006 and 60% performed at the South. The authors are post-graduate nurses who work in academy. O Clinical Caritas was applied in some areas of care in nursing, but there is a need for more productions to apply such an approach to care, yet little known, seeking to improve the of quality patient care and the community (AU)

Laser-induced alveolar bone changes during orthodontic movement: a histological study on rodents.

OBJECTIVE: The aim of this study was to assess by light microscopy changes in alveolar bone during orthodontic movement in rats. BACKGROUND: Orthodontic movement causes both removal and deposition of bone tissue. The use of laser phototherapy (LPT) is considered an enhancement factor for bone repair. METHODS: Thirty Wistar rats were divided into two groups (n = 15) and subdivided according to animal death (7,13, and 19 days). Half of the animals in each group were treated with LPT during orthodontic movement. After animal death, specimens were processed and underwent histological and semi-quantitative analyses (HE and Sirius red). RESULTS: LPT-irradiated specimens showed significantly higher numbers of osteoclasts when compared with controls at both 7 (p = 0.015) and 19 (p = 0.007) days, as well as significant increases in the number of osteoblasts (p = 0.015) between days 7 and 13. The amount of collagen matrix was significantly reduced between days 7 and 13 at both pressure and tension sites in controls (p = 0.015) but not in LPT-treated animals. LPT-treated subjects showed significantly greater deposition of collagen matrix at the pressure site at both the thirteenth (p = 0.007) and nineteenth days (p = 0.001). At the tension site, a significant increase in the amount of collagen matrix was observed in non-irradiated specimens (p = 0.048) between days 7 and 19. CONCLUSIONS: LPT caused significant histological changes in the alveolar bone during induced tooth movement, including alterations in the number of both osteoclasts and osteoblasts and in collagen deposition in both pressure and tension areas.