Influence of Periodontal Status and Prosthetic Treatment on Survival and Success Rates in Implant Therapy: A 5-Year Retrospective Follow-Up Study.

The objective of the present study was to evaluate the 5-year outcome of dental implant therapy and assess the survival, success, and biological and technical complications. A periodontal and prosthetic-oriented evaluation was conducted on the variables that can influence the long-term predictability of implant therapy. A total of 615 patients and 1427 dental implants from a private clinic (MedArtis Dent, Cluj-Napoca, Romania) were enrolled in the study.

Comparative Testing of Two Ligature-Induced Periodontitis Models in Rats: A Clinical, Histological and Biochemical Study.

Experimental animal models for studying the mechanisms of periodontitis and its links are a better alternative to in vitro studies. The aim of this study is to compare two ligature induced periodontitis models and validate the best one for further use in research. An experimental study was performed on male Wistar rats that were divided into three groups: Test 1 ( = 10), incisor ligated, Test 2 ( = 10), molar ligated, and Control ( = 10).

The impact of two-socket preservation approaches on the soft and hard tissue healing: a short-term study in dogs.

The present study was designed in the context of the uncertain circumstances related to the best therapeutic option for ridge preservation. The research aimed to investigate the quality of early healing processes developed in the former sockets preserved with a collagen matrix alone or associated with a bone substitute in comparison with naturally-healed sockets, using an animal model previously validated. In both quadrants of the mandible of two dogs, the distal sockets of the second and fourth premolars served as experimental sites.

Clinical and histological characterization of an aggressive periodontitis case associated with unusual root canal curvatures.

The article presents the histological and clinical characteristics in a severe generalized aggressive periodontitis case associated with multiple root curvatures and the complex therapeutic approach of the severe periodontal destructions. The patient received a complex therapy, including periodontal non-surgical, regenerative and reconstructive approaches, and also endodontic and prosthetic treatments. Recall appointments were fixed at 3-month intervals.

The impact of some behavioral aspects on periodontal disease in a group of Romanian students - an epidemiological survey.

Aims: To investigate the prevalence of periodontitis in a young population representative for the North-western part of Romania (Transylvania) and to identify possible risk indicators of periodontitis.

Methods: The study is a cross-sectional epidemiological survey. The subjects were students randomly sampled from three universities in Cluj-Napoca and high school students from the neighboring city of Bistrita.

Ridge preservation using a new 3D collagen matrix: a preclinical study.

Objectives: The success of ridge preservation techniques in reducing bone resorption is well documented, but no clear guidelines have been provided regarding the type of the biomaterial or technique to be used. This experimental animal study aimed at comparing the effectiveness of two ridge preservation techniques.

Materials And Methods: Following the extraction of the distal roots of the mandibular second and fourth premolars of four dogs, the sockets were preserved using a combination of a collagen membrane intimately covering the socket plus a collagen matrix or a collagen membrane alone.

Localized Juvenile Spongiotic Gingival Inflammation: A Report on 3 Cases.

Background And Aims: A new pathological entity with distinct clinicopathological features has been recently described and termed as juvenile spongiotic gingivitis. Histopathological associated features are unique and characterized by prominent intercellular edema (spongiosis) and neutrophil infiltrate. The aims of this paper were to: introduce juvenile spongiotic gingivitis to the dental and pediatric communities, to report three cases based on clinical and histopathological findings, and to discuss the most common clinical differential diagnoses.

Short-Term Results in Evaluating a Gingiva-Adhesive Hydrophobic-Chlorhexidine-Gel for Chronic Periodontitis.

Background And Aims: Oral mucosa and interproximal spaces of the teeth could favor the colonization of periodontopathogenic bacteria, which could be targeted by chemical antiplaque agents such as chlorhexidine, present in different oral hygiene products, thus improving the control of biofilm growth and delaying microbial accumulation. The study aimed to evaluate whether the use of a hydrophobic gel with good gingival adhesion for 14 days after the scaling and root planing of patients with chronic periodontitis would improve the treatment outcome, when compared with the use of a regular hydrophyllic gel.

Material And Methods: Patients with moderate disease were included in two study groups.

Degenerative alterations of the cementum-periodontal ligament complex and early tooth loss in a young patient with periodontal disease.

Premature exfoliation of primary or permanent teeth in children or adolescents is extremely rare and it can be a manifestation of an underlying systemic disease. This study aims to present the histological aspects associated with early tooth loss in a case of periodontal disease developed without local inflammation and with minimal periodontal pockets and attachment loss. The maxillary left second premolar was extracted together with a gingival collar attached to the root surface.

Rationale and design for programming implantable cardioverter-defibrillators in patients with primary prevention indication to prolong time to first shock (PROVIDE) study.

Aims: Shock therapy delivery by implantable cardioverter-defibrillators (ICD) can be painful and may have negative psychological consequences. Reducing shock burden for patients with ICDs and cardiac resynchronization therapy defibrillators (CRT-Ds) may have beneficial consequences. This may be achieved by avoiding inappropriate shocks for supraventricular tachycardia (SVT) and by limiting appropriate shocks to only those that are necessary to convert ventricular arrhythmias.

Manifestation of left atrial events and interatrial frequency gradients in the surface electrocardiogram during atrial fibrillation: contributions from posterior leads.

Background: In most patients, atrial fibrillation (AF) is initiated and maintained by pulmonary vein foci, but the relationship between left atrial (LA) events and the surface electrocardiogram (ECG) is largely unknown. We investigated whether LA events are reflected in the surface ECG and whether additional information can be obtained from recording posterior leads in patients with AF.

Methods And Results: In 10 patients undergoing radiofrequency ablation of AF, we identified 103 5-second segments with a significant frequency gradient between right (RA) and left (LA) intraatrial electrograms, or with frequency changes from segment to segment in the same patient.

The relationship between programmed pacemaker pulse amplitude and the surface electrocardiogram recorded amplitude: application of a new high-bandwidth electrocardiogram system.

Background: Recording and displaying outputs from electronic pacemakers with electrocardiogram (ECG) recorders typically used in clinical practice have presented a number of technical limitations. We have recently reported on a new high-bandwidth ECG system and have shown that it is capable of reproducing accurate pulse amplitudes and durations from the body surface. In the present work, we have used our data to calculate a transform function between the programmed pacemaker output voltage and the amplitude on the body surface.

Abrupt changes in fibrillatory wave characteristics at the termination of paroxysmal atrial fibrillation in humans.

Aims: We investigated the process of spontaneous termination of atrial fibrillation (AF) to determine its time course from the surface ECG.

Methods And Results: We studied fibrillatory waves in Holter recordings of paroxysmal and sustained AF. Following QRS-T cancellation dominant frequencies (DFs) were computed and the relationship of DF to termination was scrutinized.

Short-term dynamics in fibrillatory wave characteristics at the onset of paroxysmal atrial fibrillation in humans.

Introduction: The purpose of this study was to investigate the magnitude and time course of fibrillatory wave dynamics during spontaneous onset of paroxysmal atrial fibrillation (AF).

Methods: We studied fibrillatory waves in Holter recordings of paroxysmal AF with regard to the fibrillation-free interval (FFI) preceding each episode.

Results: For 38 episodes of paroxysmal AF in 20 patients, dominant frequency (DF) ranged from 4.

Clinical, EEG, electromyographic and polysomnographic studies in restless legs syndrome caused by magnesium deficiency.

The present paper reports biochemical and neurophysiological investigations in ten cases with restless leg syndrome. Other neuropsychiatric affections and factors which could generate the symptomatology of restless legs syndrome were not included. The EEG recordings demonstrated evident reticular neuronal hypersynchrony generated by hyperpnoea (sinusoidal slow waves).