Introduction: The use of digital CAD/CAM technology is relatively new. There are no previous studies in Chile regarding the use of this technology by dentists.
Purpose: The purpose of this Survey was to identify the use of CAD/CAM digital rehabilitation systems at Dental Office care networks of the Metropolitan Region of Santiago de Chile in 2018 and investigate the relationship of demographic factors with the use or nonuse of digital CAD/CAM technology.
Materials and Methods: A survey was applied to 70 professionals corresponding to three dental centers, Norden, BYO and Cumbre, which are distributed in 18 clinics in the Metropolitan Region of Santiago. Its goal was to reveal information regarding age, sex, commune, years that have been exerting the profession, knowledge and attitudes about the CAD/CAM system, source of training, digital system used and perception of technology in the future.
Results: The number of surveys completed was seventy. Most respondents reported knowing what CAD/CAM is. The age of the professionals who responded was between eighteen and forty years, mostly female. Most of them use some aspect of this system in their work and they have been exercising from 0 up to teen years. They work mostly in the eastern sector.
Conclusion: The majority of respondents (98.6%) consider that CAD/CAM will have a preponderant role in the future. they have been exercising from 0 up to teen years. They work mostly in the eastern sector.
Keywords:CAD/CAM Technology; Private Care Networks Clinics; Age; Sex; Commune

As is common with all areas of medicine, periodontal research also increases at an exponential rate with each passing year. Huge numbers of papers are published each year which aim to address different aspects of periodontology, and it is a difficult task to keep up with these new research developments as and when they are published, especially for the clinical practitioners. In the next four to five decades, periodontists of the future may wonder at the treatment protocols which we at present may consider as state of the art. Thus, it is empirical that researchers, clinicians, teachers and students alike, look into updating themselves with the latest developments in periodontal research.
Keywords:Periodontal Research; Dentistry Introduction

Background: Ameloblastoma is the most common clinically significant odontogenic tumor because of it is aggressive and local invasion behavior. It is considered the most common odontogenic tumor in Sudan. Familiarity with this type of odontogenic tumor is an absolute necessary for careful management and improvement of outcomes.
Methods: A descriptive (retrospective – prospective) cross-sectional study of 209 patents of ameloblastoma was conducted at Khartoum Teaching Dental Hospital. Patients were interviewed and examined. Data were collected and analysed includes demography, treatment provided and treatment outcomes.
Results: Of all patients, 122 (58.4%) were males and 87 (41.6%) were females. The third and fourth decades being the most commonly affected (29.7% and 22, 5%) respectively. 199 (94.8%) of the cases of ameloblastoma occurred in the mandible, while 11 (5.2%) of the cases occurred in the maxilla. In 129 (50.6%) of the patients ameloblastoma occurred on the left side of the jaws, while 126 (49.4%) of the tumours occurred on the right side with an almost equal distribution. The posterior area of the jaw was commonly involved in (79%) of the cases. Segmental resection was the most common treatment done in (30%) of the cases. Reconstruction plate was the most common means of reconstruction in 107 (77%) patients, followed by bone graft 19 (13.7%) patients. follow up revealed 19 (11%) patients who developed recurrence of the ameloblastoma. 127 (73.4%) patients developed teeth-related problems while 29 (16.8%) patients developed difficulty in swallowing and 117 (67.6%) patients developed difficulty in chewing. Speech problem developed in 65 (37.6%) patients. 70 (40.5%) patients developed changes in their appearance and 29 (16.8%) patients developed changes in their psychological status also 10 patients (5.8) got divorced. 45 (26%) patients developed low daily activity postoperatively while 13 (12.4%) patients lost/stopped their jobs and 20 (11.6%) patients developed negative changes in their socioeconomic status.
Conclusion: In this study the demographic data of the presently reported patients are more or less in accordance with those obtained from the literature. Whatever the type of Ameloblastoma radical surgeries showed less recurrence rate rather than conservative one despite the disfigurement that may result. This study showed that there is a direct impact of ameloblastoma disease and treatment provided on patient’s quality of life.
Keywords: Ameloblastoma; Gender Predilection; Segmental Resection; Teeth Related Problems; Bone Graft

Aggressive periodontitis, which affects especially young and healthy individuals, is characterized by deep periodontal pocket of quick progression, severe bone loss, migration and dental loss. Patients presenting aggressive periodontitis may demand multidisciplinary dental care, together with periodontal therapy. The purpose of this article is to present a case of aggressive periodontitis that whose treatment included basic and surgical periodontal care, endodontic treatment, orthodontic therapy (orthodontic intrusion) and concluded with aesthetic periodontal surgery, with periodontal reinsertion. The patient still receives semiannual periodontal maintenance and the case has been followed for 18 years. Complementary treatment modalities were discussed.
Keywords: Aggressive Periodontitis; Pre-Pubertal Periodontitis; Juvenile Periodontitis; Early-Onset Periodontitis; Rapidly Progressive Periodontitis; Periodontal Diseases; Treatment

Vascular lesions are common and when located on the face they can be a source of great aesthetic concern. This case-presentation describes the efficacy of a diode-laser technique for the treatment of a protuberant vascular malformation in a 2-year-old child on her upper lip. A high-intensity diode laser was used in a non-contact technique under local anesthesia during 1 session. This technique has provided a very satisfactory cosmetic result. The high-intensity diode laser treatment was effective, bloodless and safe. Postoperative problems and discomfort were minimal, and so is scarring.
Keywords: Vascular Lesion; Vascular Malformation; Diode Laser; High Intensity Laser; Laser Dentistry

Dental blue LED curing light (wavelengths, 400 – 500 nm), used for composite restorative materials, has shown potential to affect oral biofilm formation. However, there is limited study of its effect on caries formation. We aimed to study the sustained effects of blue light on biofilm grown on bovine enamel or cover glass in an in vitro caries model with mono-culture or co-culture of Streptococcus mutans and Streptococcus sanguinis. Twenty-four-hour biofilm samples were treated by blue light at a fluence of 140 J/cm2 and incubated anaerobically for 24 hrs with no-light-treatment as control. Then, planktonic pH and calcium concentration in the supernatants, as well as biofilm biomass, bacteria levels, live/dead bacteria ratios, and biofilm structure under the confocal microscopy were evaluated. Results showed that, under the experimental conditions, blue light treatment had a significant effect on the co-culture biofilms only, demonstrated by a significantly higher pH, less calcium release in the supernatants, and reduction of S. mutans levels in the biofilms, when compared to the control. In all experimental conditions, blue light did not affect the biofilm thickness or live/dead bacterial ratio. Using this in vitro caries formation model, our results indicate that blue light may suppress cariogenic S. mutans growth in biofilm when co-cultured with S. sanguinis, which resulted in less acidity and enamel demineralization, with a potential to reverse biofilm dysbiosis for caries prevention.
Keywords: Streptococcus mutans; Streptococcus sanguinis; Biofilm; Bovine Enamel; Artificial Caries; Confocal Laser Scanning Microscopy