PubMed Health⌕ Search

Biomedical subjects

J F Leclerc

Publications and source records attributed to J F Leclerc.

8 recordsLinked to original sources
PubMed1997

[Osseointegrated implanted in lingual orthodontics].

This lecture bring a big interest to every practitioner of the Dental Art. Implantology combined with lingual orthodontics give to the patient esthetic solutions, and also, a new approach in the building of the treatment's plan of the team. Some questions must be settled: orthodontics indications: anatomic, physiologic, periodontal considerations; what is an implant treatment? When must be place the implant? The clinical's possible results! A careful conception of end's treatment previsualization allow to each specialist to have a clear vision of his role and timing. Time treatment's management will enjoy the patient.

Aged↗
PubMed1991

[Lingual orthodontics: why is it progressing?].

At the early stages of the 80's, most of the practitioners and the patients have been seduced by lingual orthodontic. But the difficulties of the technic have rapidly given a disappointment. Today ten years later the authors present the progress which have been realized: the evolution of the brackets, the accuracy of their placement in the lab procedure with the new targ, the making of the wire, the patient's comfort increase. The placement brackets are customized by making an anatomical resin pad. Placement of the brackets have evoluted from a quantized system in two dimensions (Targ 1) to a no quantized system in three dimensions (Class System) and finally to a real quantized system in three dimensions (Targ 2 with a compass of thickness with measures the first order band). Data System DALI (Drawing Arch Lingual Ideal) allows to draw the exact design of the wire. A video tape shows the different laboratory and clinical phases. By using light cured periodontal protection like Barricaid from Caulk: the patients have a greater adaptation with their appliance. All this progress give to lingual orthodontic credibility. Lingual is a reality to day and it's the first concept with customized brackets extremely accuracy, full quantized in the three orders, using the computer progress.

Dental Bonding↗
PubMed1990

[Revision of criteria for locating the accessory pathway by electrocardiogram in Wolff-Parkinson-White syndrome. A new algorithm].

A new algorithm has been developed for locating the anomalous conduction pathway from the ECG which is based on 62 cases of Wolff-Parkinson-White syndrome with a single anomalous conduction pathway, located by epicardial mapping, i.e. 28 on the free edge of the left ventricle (FL), 22 posterior septal, including 11 left (LPS) and 11 right (RPS), 8 right lateral (RL) and 4 right anterior septal (RAS). Criteria use the orientation of the delta wave and the QRS complex in the right precordial leads and the frontal plane, combined with the presence or absence of left or right ventricular hypertrophy. The algorithm is worked out in 15 steps, each criterion being applied only if the preceding criterion has not been observed. It identifies 100 per cent of the study population. This high specificity has been checked on independent series which include 55 FL pathways, 9 LPS, 17 RPS, 10 RL and 5 RAS. Only 2 LPS pathways were identified as FL and 1 RPS pathway as RL corresponding, perhaps, to "borderline" cases. The ECG thus remains the simplest non invasive examination for locating the ventricular origin of anomalous conduction pathways.

Algorithms↗
PubMedDate not supplied

[Invisible orthodontics: lingual orthodontics].

After an historical, a description of the appliance and the problems met in lingual orthodontics, the authors show that it has come to maturity. Indirect bonding is one of the main elements contributing to success. A large iconography illustrates the different stages of the laboratory and presents an overview of the clinical possibilities of lingual orthodontics.

Dental Bonding↗