Vertical preparation: a new technique for analogical and digital impressions.

The BOPT technique (Biologically Oriented Preparation Technique) was proposed by Loi et al. (1) and has become a popular form of vertical preparation for complete crowns with promising results. In this procedure, the clinician can operate on the gingival tissue during preparation and modify its structure in thickness and height by adding modifications on the provisional restoration. However, one of the main challenges in this technique is the transference of information about the gingival tissue to the laboratory technician, who will place the margin of the restoration randomly in a space determined by two marks on the working cast. The technique proposed enables the accurate transmission of the exact point where the margin of the restoration needs to be placed. Furthermore, it facilitates the recording of conventional impression materials and intraoral scanners due to the compression of polytetrafluoroethylene (PTFE) tape into the sulcus, which allows to arrest bleeding or intracrevicular liquid and is easily registered irrespective of the method of impression used. Key words:Vertical preparation, BOPT, PTFE, emergence profile, digital impression, conventional impression.

Treatment of Deep Cusp Fractures: A New Technique.

Cusp fractures occur frequently in endodontically treated teeth with large restorations and no cusp protection. These fractures often lead to challenging clinical decisions, such as whether to undertake complex restorative management or extraction of the affected teeth. This article reports the surgical and restorative management of two teeth with fractures exceeding the biologic width to juxtacrestal and subcrestal levels, respectively, and describes a new technique for such treatment.

Pharmacogenetic study of second-generation antipsychotic long-term treatment metabolic side effects (the SLiM Study): rationale, objectives, design and sample description.

AIM: Weight gain is an important and common side effect of second generation antipsychotics (SGAs). Furthermore, these drugs can induce other side effects associated with higher cardiovascular morbidity and mortality, such as insulin resistance, diabetes or metabolic syndrome. Preliminary studies show that inter-individual genetic differences produce varying degrees of vulnerability to the different SGA-induced side effects. The Second-generation antipsychotic Long-term treatment Metabolic side effects (SLiM) study aims to identify clinical, environmental and genetic factors that explain inter-individual differences in weight gain and metabolic changes in drug-naïve patients after six months of treatment with SGAs. MATERIALS AND METHODS: The SLIM study is a multicenter, observational, six-month pharmacogenetic study where a cohort of 307 drug-naïve paediatric and adult patients (age range 8.8-90.1 years) and a cohort of 150 age- and sex- matched healthy controls (7.8-73.2 years) were recruited. RESULTS: This paper describes the rationale, objectives and design of the study and provides a description of the sample at baseline. CONCLUSIONS: Results from the SLiM study will provide a better understanding of the clinical, environmental, and genetic factors involved in weight gain and metabolic disturbances associated with SGA treatment.

Estudio farmacogenético del tratamiento a largo plazo con antipsicóticos de segunda generación y sus efectos adversos metabólicos (Estudio SLiM): justificación, objetivos, diseño y descripción de la muestra / Pharmacogenetic study of second-generation antipsychotic long-term treatment metabolic side effects (the SLiM Study): rationale, objectives, design and sample description

Objetivo. El aumento de peso es un efecto secundario frecuente e importante de los antipsicóticos de segunda generación (ASG). Además, estos fármacos pueden inducir otros efectos secundarios que están asociados a un aumento de la morbimortalidad cardiovascular, tales como la resistencia a la insulina, la diabetes o el síndrome metabólico. Estudios preliminares indican que las diferencias genéticas interindividuales producen distintos grados de vulnerabilidad a los efectos secundarios inducidos por los ASG. El estudio SLiM (por sus siglas en inglés, Second-generation antipsychotic Long-term treatment Metabolic side effects) tiene como objetivo identificar en pacientes no tratados previamente con ASG (pacientes naive), aquellos factores clínicos, genéticos y ambientales que expliquen las diferencias interindividuales en relación con el aumento de peso y los cambios metabólicos generados tras 6 meses de tratamiento con estos fármacos. Material y métodos. El estudio SLiM es un estudio farmacogenético multicéntrico, observacional, prospectivo, de 6 meses de duración, en el que se ha reclutado una cohorte de 307 pacientes pediátricos y adultos (rango de edad entre 8,8 a 90,1 años) naive a ASG y una cohorte de 150 controles sanos (rango de edad entre 7,8 y 73,2 años) emparejados por edad y sexo. Resultados. En este artículo se presentan la justificación, los objetivos y el diseño del estudio y se ofrece una descripción de la muestra al inicio del estudio. Conclusiones. Los resultados del estudio SLiM permitirán una mejor comprensión de los factores clínicos, ambientales y genéticos implicados en el aumento de peso y los trastornos metabólicos asociados al tratamiento con ASG (AU)

Aim. Weight gain is an important and common side effect of second generation antipsychotics (SGAs). Furthermore, these drugs can induce other side effects associated with higher cardiovascular morbidity and mortality, such as insulin resistance, diabetes or metabolic syndrome. Preliminary studies show that inter-individual genetic differences produce varying degrees of vulnerability to the different SGA-induced side effects. The Second-generation antipsychotic Long-term treatment Metabolic side effects (SLiM) study aims to identify clinical, environmental and genetic factors that explain inter-individual differences in weight gain and metabolic changes in drug-naïve patients after six months of treatment with SGAs. Materials and methods. The SLIM study is a multicenter, observational, six-month pharmacogenetic study where a cohort of 307 drug-naïve paediatric and adult patients (age range 8.8-90.1 years) and a cohort of 150 age- and sex- matched healthy controls (7.8-73.2 years) were recruited. Results. This paper describes the rationale, objectives and design of the study and provides a description of the sample at baseline. Conclusions. Results from the SLiM study will provide a better understanding of the clinical, environmental, and genetic factors involved in weight gain and metabolic disturbances associated with SGA treatment (AU)