Objectives: The aim of this article is to review the current state of immediate implants, with their pros and contras, and the clinical indications and contraindications. Material and Methods: An exhaustive literature search has been carried out in the COCHRANE library and MEDLINE electronic databases from 2004 to November 2009. Randomized clinical trials and clinical trials focused on single implants placed in fresh extraction sockets were included and compared. A meta-analysis could not be performed due to heterogeneity of the data. Results: Twenty studies out of 135 articles from the initial search were finally included, which summed up a total of 1139 immediate implants with at least a 12-month follow-up. Our results have been compared with other current available papers in the literature reviewed that obtained similar outcomes. Discussion: Immediate implants have predictable results with several advantages over delayed implant placement. However, technical complications have been described regarding this technique. Also, biomaterials may be needed when the jumping distance is greater than 1mm or any bone defect is present. Conclusions: Few studies report on success rates rather than survival rates in the literature reviewed. Short-term clinical results were described and results were comparable to those obtained with delayed implant placement. Further long-term, randomized clinical trials are needed to give scientific evidence on the benefits of immediate implants over delayed implant placement. Key words:Immediate implants, fresh socket, dental implants, gap, jumping distance, implant stability.

Background There is little information about dental anxiety and the patient’s vital signs during dental procedures. This study evaluates and compare patient anxiety levels and cardiovascular changes before and during root canal treatment (RCT) and single-tooth implant procedures. Material and Methods Preoperative data and pre-treatment considerations were recorded. HR and SpO2 were monitored during treatment procedures at five points. Data were analyzed accordingly using Mann Whitney or X2 tests. 80 patients met the inclusion criteria. Results Anxiety and fear scores were strongly correlated ( p < 0.001). Both treatments resulted in low levels of dental anxiety and fear. Patients with a prior dental bad experience presented higher anxiety scores in the implant treatment group ( p < 0.05). Implant treatment was considered a more time-consuming and more painful procedure than root canal treatment ( p < 0.05). No significant relation was found between the level of anxiety with HR and SpO2. Conclusions No significant relation was found between the level of dental anxiety with HR and SpO2. Single-implant treatment was pre-considered to be a more time-consuming and more painful procedure when compared with a RCT. HR was higher at the initial stages and decreased as both procedures finished. Key words: Dental anxiety, endodontics, dental implants, oximetry, heart rate.

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General anxiety in the dental staff and hemodynamic changes during endodontists' workday in the COVID-19 pandemic: A prospective longitudinal study.

Background Recently, dental implant technology has been widely used for oral reconstruction. Dental implants are the treatment of choice for those patients with dental absences. An optimal implant placement is based on the prosthetic driven concept in order to achieve an aesthetic and functional restoration with a long-term prognosis. There are two types of guided implant surgery that are described in the literature: Static Guided Surgery (SGS) and Dynamic Guided Surgery (DGS). The aim of this study is to be aware of the current state of dynamic surgery and compare in the literature the discrepancies between planning and placement of dental implants. Material and Methods The study consists of a bibliographic review on the topic. The research has been performed in the Medline/Pubmed of articles published by different professional associations and societies in the international context. Results Twenty two studies out of 100 articles from the initial search were finally included. Our results have been compared with other current available papers in the literature reviewed that obtained similar outcomes. Conclusions Dynamic navigation shows a better accuracy and precision of implant placement. To corroborate the results of this review as well as to evaluate the different variables that could influence the accuracy of this technique, future randomized control trials will be needed. Key words: Guided surgery, dynamic navigation, dynamic guided surgery, computer assisted surgery.