Clinical trials

Evaluate whether the type of probe (plastic vs. metallic) modifies the accuracy of peri-implant probing in single-unit implants, by comparing the probing depth recorded with the prosthesis in place versus without the prosthesis (ΔPD, mm). Secondarily, explore the influence of prosthetic design and implant position on probing values and on other clinical and radiographic parameters.

Introduction: Advanced maxillofacial imaging techniques, such as CBCT, CT, MRI, and hybrid modalities (PET/CT and SPECT/CT), have transformed diagnosis and treatment planning in dentistry. However, their increasing availability poses challenges related to the appropriate indication, interpretation, and application of radiation protection principles. Previous studies suggest variability in the level of knowledge and attitudes of dental professionals, which can impact the quality of care and patient safety. Objective: To evaluate and compare the level of knowledge and attitudes regarding advanced maxillofacial imaging techniques among general dentists, dentists with postgraduate training, undergraduate/master's students in dentistry, and maxillofacial surgeons. Methodology: A cross-sectional study will be conducted using a structured questionnaire administered to general dentists, specialists, and students. A non-probability convenience sampling method will be used, with an estimated sample size of 220 participants. Statistical analysis will be performed using SPSS (version 31.0.1.0), establishing a significance level of p \< 0.05. A descriptive analysis of the variables will be carried out, expressing qualitative variables as frequencies and percentages, and quantitative variables as mean and standard deviation or median and range, depending on their distribution, which will be assessed using normality tests. For bivariate analysis, ANOVA or Kruskal-Wallis tests will be used to compare the level of knowledge, attitudes, and confidence levels between groups, according to the data distribution, with post-hoc analysis in case of significant differences. Ordinal variables, such as the frequency of test requests, will be analyzed using chi-square tests. Associations between variables will also be explored using Spearman's rank correlation coefficient, Student's t-test, or Mann-Whitney U test, and chi-square tests, depending on the nature of the data. Expected conclusion: This study will allow us to identify differences in knowledge and attitudes between groups, as well as detect training needs, contributing to optimizing clinical practice and radiological safety in dentistry.

Objective:To evaluate the usefulness of a sonic toothbrush compared to an electric toothbrush for plaque removal and improving gingival health.Patients:Patients over 18 years of age who attend the Master's Degree in Medicine, Surgery and Oral Implantology of the HOUB or other clinical activities of the group cooperating with the study, who comply with the follow-up, and sign the informed consent.Material and method:A randomized clinical trial will be conducted.

This triple-blind randomized clinical trial aims to compare the anesthetic efficacy and safety of two local anesthesia techniques for the surgical treatment of peri-implantitis in posterior mandibular implants: inferior alveolar nerve block (IANB) and infiltrative anesthesia with 4% articaine and epinephrine 1:100,000. Peri-implantitis is an inflammatory disease affecting the tissues around dental implants, characterized by progressive bone loss and clinical signs of inflammation. When non-surgical therapy is insufficient, surgical treatment is required, usually involving flap elevation, debridement of granulation tissue, implant surface decontamination, and, depending on the defect, resective, regenerative, or combined surgery. Effective local anesthesia is essential in these procedures, especially in the posterior mandible, where dense bone may limit anesthetic diffusion. IANB is the conventional technique for achieving profound mandibular anesthesia, but it may fail due to anatomical variations, accessory innervation, or technical difficulty. Infiltrative anesthesia has been proposed as an alternative, particularly with articaine because of its high diffusion capacity, although its predictability in complex mandibular surgery remains uncertain. The main objective is to compare the efficacy of IANB and infiltrative anesthesia, measured by the need for re-anesthesia during surgery. Secondary objectives include assessing safety, intraoperative discomfort, postoperative pain, duration of anesthesia, patient satisfaction, and adverse events. Adult patients requiring surgical treatment for peri-implantitis in posterior mandibular implants at the Dental Hospital of the University of Barcelona will be included. Eligible participants must be ≥18 years old, medically fit for surgery, and able to understand the study and complete the questionnaires. Exclusion criteria include pregnancy, allergy to articaine or epinephrine, uncontrolled systemic disease, coagulation disorders or anticoagulant medication, ASA III or higher status, and contraindications to conventional analgesic or anti-inflammatory medication. Participants will be randomly assigned to either the IANB group or the infiltrative anesthesia group. Randomization will be performed using a computer-generated sequence placed in opaque, sequentially numbered envelopes. The patient, surgeon, outcome assessor, and statistician will remain blinded to group allocation. The study includes three visits. At the first visit, eligibility will be assessed and informed consent obtained. At the second visit, surgery will be performed after the assigned anesthetic technique. Patients will record pain using visual analogue scales at injection, during surgery, 2 h, 6 h, 12 h, 24 h, and daily until day 7, as well as rescue medication use and sick leave. At the third visit, 7-9 days after surgery, postoperative healing, complications, adverse events, pain diary, and patient satisfaction will be assessed. The primary outcome is anesthetic efficacy, defined as absence of need for re-anesthesia. Secondary variables include demographic factors, systemic disease, medication, smoking, dental anxiety, type and duration of surgery, surgeon experience, number and position of implants, intraoperative and postoperative pain, duration of anesthesia, adverse events, complications, and patient-reported experience measures. Data will be analyzed using Stata/IC 15.1. Quantitative variables will be described using means and standard deviations or medians and interquartile ranges, depending on normality. Qualitative variables will be presented as frequencies and percentages. Group comparisons will use appropriate statistical tests, with significance set at p \< 0.05. As a pilot exploratory trial, the study will include 30 patients, 15 per group. Its aim is to assess feasibility, estimate preliminary event rates, and generate data for future confirmatory trials. The study will follow the Declaration of Helsinki and applicable data protection regulations. Participation will be voluntary, anonymous, and based on written informed consent.

The goal of this clinical trial is to learn if hyaluronic acid infiltration helps relieve dry mouth symptoms in adults with xerostomia. It will also assess the safety and duration of the treatment's effects. The main questions it aims to answer are: 1. Does hyaluronic acid improve the sensation of dry mouth? 2. What side effects may occur after treatment? 3. How long does the effect of the treatment last? 4. Are there changes in salivary flow and pH after treatment? Researchers will compare hyaluronic acid to a placebo (a look-alike substance with no active ingredient) to determine its effectiveness. Participants will: Receive submucosal injection of either hyaluronic acid or placebo Visit the clinic once a month for 6 months for follow-up evaluations Not be required to perform any tasks at home

The age of onset of anorexia nervosa has been progressively decreasing in recent years. Also, the prevalence rates of childhood anorexia in many countries have grown significantly. This increase was already observed before the COVID-19 pandemic, but the confinements and the stress derived from them have caused this increase to accelerate. As in adolescent and adult patients, in childhood anorexia some of the core signs and symptoms are an extreme fear of gaining weight and avoidance of food. The consequences of the early-onset of anorexia can be very important since the maturation of the organism is more incomplete in children than in adolescents. Weight loss can have very severe consequences, since in children the percentage of body fat is lower. On the other hand, hormonal disorders derived from food deprivation also have very severe consequences for the development of different organs. General physical development and growth can be affected, with consequences such as not being able to reach normal height. The research carried out to date on the efficacy of treatments for childhood anorexia is very scarce. There are no specific treatment strategies or settings for children with anorexia, and little research has been done to tailor treatment for younger patients. Given the need to explore new treatments for anorexia nervosa specifically aimed at children, the objective of this project is to develop a program to carry out exposure to one's own body through virtual reality, gradually, with progressive increases in size until achieving a healthy weight. In the virtual exposure, patients will observe the image of an avatar in a mirror for the time necessary in each session to produce the reduction of the anxiety response. The avatars that will be developed for this purpose will have a physical constitution corresponding to children under 14 years of age, and physical proportions equivalent to those of each patient. The positive results obtained with a previous version of this treatment originally developed for adolescents and adults suggest that its adaptation to children can open new ways for exploring effective treatments for childhood anorexia.

This study will test whether a nursing program using podcasts and videos can help women feel better and take better care of themselves during the climacteric (the stage leading up to and following menopause). Women between 42 and 58 years old who attend public sexual and reproductive health clinics in the Metropolitan South Health Region of Barcelona (Sant Boi, Sant Feliu, and Cornellà) will be invited to participate. Participants will be randomly assigned to one of two groups: Intervention Group: will receive access to podcasts and videos offering practical advice and strategies to improve emotional well-being and self-care. Control Group: will receive standard care. All participants will complete questionnaires before and after the program to assess symptoms, mental health, and satisfaction with self-care. Statistical methods will be used to compare the results between both groups and determine whether the program produces a significant difference. The aim of the study is to demonstrate that this digital nursing intervention is effective and could be implemented more broadly in healthcare settings.

Metacognitive abilities and self-knowledge are necessary for psychological maturation and good mental functioning of individuals. It is generally agreed that an adequate representation of oneself and others is essential to establish functional interpersonal relationships. These metacognitive abilities are not adequately developed in patients with various mental health problems, such as personality disorders, eating disorders, psychosis, and depression, and are associated with the severity of the pathology. Self-awareness is a central element that begins to consolidate during adolescence. For that reason, the investigators aim to evaluate the effects of immersive training on the metacognitive abilities and self-knowledge of young people. Based on the repertory grid technique (RGT), our research team has developed a brief immersive training to enhance metacognitive abilities. This intervention facilitates the exploration of personal identity in a safe environment. Specifically, it is an immersion in the person's own world of meanings using Virtual Reality (VR), with the Explore Your Meanings (EYME) tool, a technological platform created to help mental health professionals to enhance the personal development and therapeutic change of their clients. Expected results include an increase in participants' self-concept clarity, metacognition, and reflective function as well as a deeper knowledge about their relationship with various aspects of self-knowledge and self-esteem.

Depression and anxiety are the most prevalent mental disorders among both the general population and young adults, and transdiagnostic treatments for these patients are mostly based on cognitive-behavioral therapy (CBT). Based on common (transdiagnostic) principles of treatment (e.g., emotional exposure), these approaches have proliferated and demonstrated their efficacy in comparison to disorder-specific treatments. Although there are a few transdiagnostic approaches for children and adolescents, it was not possible to not find anyone targeting young people. For this reason, the investigators proposed the Identity-Based Transdiagnostic Therapy (IBTT) as a new treatment modality ideally created to address the challenge of improving the outcomes of psychotherapy for young adults with anxiety and/or depression. The IBTT is a psychological treatment for emotional disorders specifically designed for the youths in terms of their attitudes to treatment (attractiveness, engagement), and highly personalized to their construal of self and others. This project will allow testing the hypothesis that a novel brief psychotherapeutic intervention, IBTT, will be more efficacious in the treatment of the anxiety and/or depression of young adults than the well-established CBT-based Unified Protocol.

This study aims to evaluate the clinical, radiographic, functional, and patient-reported outcomes of premolar autotransplantation used to replace anterior maxillary teeth in young patients. The study has an ambispective observational design, including a retrospective cohort (patients treated between December 2019 and December 2025) and a prospective cohort (patients enrolled until December 2028). Participants aged 7 to 15 years who received or will receive premolar autotransplantation to replace an anterior tooth will be followed clinically and radiographically for up to 5 years. Outcomes include tooth survival, periodontal and pulpal healing, root development, complications, orthodontic interactions, restorative needs, and patient satisfaction. The study seeks to identify prognostic factors and long-term success indicators for dental autotransplantation in growing patients.

Based on the hypothesis that the strategy of using Closed-Blood Sampling Devices (CSBD, experimental group) compared to the usual practice (waste discard volume, control group), in critically ill adult patients, will decrease the amount of blood withdrawn for laboratory tests, we want to analyze the number of red blood cells (RBC) administered and arterial catheter-related adverse events (catheter-related bacteremia, catheter obstruction, CBSD malfunction, loss of arterial pressure waveform on the patient's bedside monitor) in both study groups, during ICU stay and up to a maximum of 21 days.

The goal of this clinical trial is to promote positive views on aging and walking in Spanish partners aged 65 years and over. The trial will comprise three arms. In the first arm, both partners will undertake the intervention together. In the second arm, only one of the two partners will undertake the intervention. In the third arm (control) none of the partners will undertake the intervention. Collection of quantitative data will make it possible to test the following hypotheses: 1. Differently from arm three, those participants from arms one and two who undertake the intervention will experience changes in primary and secondary intervention outcomes between pre- and post-intervention and these changes will be maintained at follow-ups. 2. Compared to delivering the intervention to only one partner, delivering it to both partners will lead to a greater and more lasting change in primary and secondary intervention outcomes. 3. In the group where only one partner will undertake the intervention, their change in intervention outcomes is observed at least to a small extent in the other partner. Qualitative data collected at the end of the intervention through interviews of ten couples from each of arms one and two will make it possible to test three additional research questions: 1. How do participants in Group one engage with the intervention tasks, and to what extent do they undertake these tasks jointly as a couple? 2. In what ways do participants in Group two involve their non-participating partner in the intervention activities? 3. What changes do participants in Groups one and two report in their views of themselves and their aging, as well as in their perceptions of and interactions with their partner? Participants will undertake a multicomponent intervention comprising: * Three in-person psychoeducational sessions aiming to promote positive views on aging, including positive self-perceptions of aging, and accurate facts about aging * Independent walking for 12 weeks Primary intervention outcomes are changes in participants' self-perceptions of aging and physical activity engagement. Secondary intervention outcomes are changes in ageism, subjective views of couple's joint aging, perceived age-related changes in one's partner, mood, physical fitness, and cognitive functioning.

A multi-school, two-arm parallel cluster-randomized controlled trial will be conducted in 200 healthy young adolescents from Barcelona (Spain) to evaluate the effect of peanut consumption on cognitive performance, weight management and inflammation. Schools willing to participate will be randomly assigned to either the intervention or the control group. After the recruitment, the participants will follow a peanut-free diet for two weeks. Both arms will receive a multidimensional educational intervention designed by the Gasol Foundation to promote healthy dietary habits based on Mediterranean diet recommendations, along with exercise performance, healthy sleeping habits and emotional knowledge. Half of the participants (intervention group) will consume 25 g of whole skin roasted peanuts as a daily snack to be incorporated into their diet for six months.

PAINDOC is a treatment program that includes 4 disciplines that, separately, have demonstrated their effectiveness in the treatment of chronic low back pain: education in pain neuroscience, therapeutic education (Empowered Relief®), psychotherapy based on cognitive-behavioral therapy and therapeutic exercise. The primary objective of the study is to evaluate the effectiveness of the PAINDOC multidisciplinary treatment program in reducing pain intensity and improving quality of life in persons with chronic low back pain referred to the pain unit of the Hospital Clinic of Barcelona, compared to usual care treatment. As secondary objectives, the present study aims to evaluate the effect of the PAINDOC program on: * The reduction of pain-related disability. * The reduction of pain catastrophizing. * The improvement in perceived social support. * The improvement in perceived autonomy (self-efficacy). * The reduction of analgesic, anti-inflammatory and adjuvant analgesic medication. The main questions it aims to answer are: * Is the proposed multidisciplinary treatment effective in improving pain-related outcomes? * Is the proposed multidisciplinary treatment effective in reducing analgesic medication? Participants will receive either usual care (pharmacological control) or the PAINDOC program, which consists of 7 multidisciplinary sessions within 2 months. There will be one therapeutic education session called Empowered Relief®, 2 pain neuroscience education sessions, one pain psychology session and 3 therapeutic education sessions. Besides, participants will be assessed using written questionnaires before treatment, at 3 months and at 6 months. Researchers will assess the effectiveness of the multidisciplinary treatment group comparing both groups to see if there is any difference in several pain-related outcomes.

The main objective of YoungFitT Project is to study the effect and neuro-psycho-biological mechanisms of mind and body interventions, also in the form of virtual reality (VR), on brain health, cognitive and psychological well-being of college students. The investigators have adopted an inter and multidisciplinary and multimodal approach to provide a more integrative perspective using cognitive, psychological, biochemical, and neuroimaging measurements. The investigators hypothesize that all three interventions Mindfulness-Based Stress Reduction (MBSR), Qigong, and High-Intensity Functional Training (HIFT) will produce gains in cognitive functions and psychological well-being at three months compared to baseline. Also, all three interventions will induce changes in the microbiota and brain structure and function. Finally, using a VR environment for these interventions will provide greater adherence and cognitive and psychological well-being benefits than conventional training.

Randomized clinical trial that aims to evaluate the impact of the use of a diary in patients and relatives of patients admitted to an ICU in relation to usual practice in terms of health-related quality of life, the post-traumatic stress and anxiety/depression at 2, 6 and 12 months after ICU discharge.