Biomedical subjects

G Sauveur

Publications and source records attributed to G Sauveur.

16 recordsLinked to original sources

PubMed2000

Utilization of gutta-percha for retrograde root fillings.

Just as gutta-percha used with a root canal sealer is a recommended material for orthograde root fillings, it could similarly be the material of choice for retrograde fillings. Unfortunately, clinical accessibility and visibility do not always facilitate such a technique. The aim of this article is to present a new technique which enables retrograde fillings to be achieved with gutta-percha and a sealer. After the apex had been resected, a hole was drilled perpendicular to the plane of section of the apex about 1 mm coronally. The bucco-lingual depth required to reach the main canal was calculated. The cavity was then dried, coated with the sealer, and obturated with gutta-percha in accordance with thermo-mechanical compaction techniques. After excess filling material had been removed, the gutta-percha was cold burnished and the angles of the root were smoothed. Clinical cases illustrating healing of the periapical tissues are shown.

Apicoectomy↗

PubMed2000

Persistent pain related to root canal filling and apical fenestration: a case report.

Endodontic treatments may give rise to persistent pain whose origin is sometimes difficult to determine. Although it is unusual, pain may occur due to apical fenestrations following endodontic treatment. If this occurs, the solution is surgical intervention. This surgical procedure consists of raising a flap to expose the fenestration, followed by curettage of any overextended canal filling materials that may be potentially irritating to the underlying mucosa, remodeling of the apex, and its repositioning below the level of the cortical bone. A case is described that illustrates this clinical situation. The case also demonstrates information that can be obtained from tomodensitometric films.

Apicoectomy↗

PubMed1999

The control of haemorrhage at the operative site during periradicular surgery.

CLINICAL TECHNIQUE: Effective apical sealing in endodontic surgery requires a dry root-end cavity to insert the filling material. A number of procedures for controlling haemorrhage have been described in the literature. An improvement of these techniques is proposed in this paper: by using a mixture of surgical wax and fibres of calcium alginate. This device, easy to place, sterile and non-toxic, permits placement of a root-end filling under more favourable conditions.

Alginates↗

PubMed1998

A photoelastimetric analysis of stress induced by root-end resection.

The aim of this study was to place into perspective some factors that played an important role in the healing of periapical lesions after surgical endodontic procedures. Root-ends were sectioned at different angulations on models and analyzed by photoelastimetry. Results showed that a section of the root-end through a plane perpendicular to the long axis of the tooth offers a better distribution of the stresses exerted on the apical region that the use of an inclined plane. The biological implications of these results have led the authors to propose a plan of resection that is perpendicular to the long axis of the tooth instead of the inclined plane commonly used.

Birefringence↗

PubMed1998

A teaching model for endodontic surgery.

It is often difficult to achieve realistic simulation in teaching endodontic surgery. There is relatively little material available to students other than animal tissue or human cadavers. We propose a working model for the teaching of this discipline, constructed from casts of a natural skull which reproduce anatomical features such as gingiva, maxillary sinus, or mandibular canal, for example. This model, made of polyurethane resin containing mineral particles, which closely simulates the radiological and tactile differences of the relative densities of spongy bone, cortical bone and teeth, permits close simulation of the conditions under which endodontic surgery may be performed.

Education, Dental↗

PubMed1997

Improvement of the rubber dam frame.

An improvement of the rubber dam frame for obtaining the endodontic operative field is proposed. The device consists of an articulated frame that maintains the currently used standard rubber dam sheet in position. A hinge allows the frame to be folded, resulting in easier accessibility to the working area. This accessibility facilitates taking of radiographs, administration of additional doses of anesthetics, and evacuation of therapeutic liquids, which may have accidentally entered the buccal cavity. In addition, a reservoir at the bottom of the frame allows the placement of gauze compresses and an aspiration cannula to avoid leakage of fluids such as sodium hypochloride onto the patient's clothing.

Biocompatible Materials↗

PubMed1997

Surgical treatment of a lateroradicular lesion on an invaginated lateral incisor (dens in dente).

The complex anatomy of invaginated teeth makes their endodontic treatment difficult. The case described here reports the successful management of an invaginated tooth presenting with a lateroradicular lesion. After the root was surgically exposed and the radicular defect was cleaned, gutta percha was sealed with a zinc oxide eugenol cement, heat-compacted under 5 degrees, and then cold-burnished. The osseous cavity was filled with Biocorail. Radiographs at 1 month and 5 years show periapical healing with osseous formation. This procedure, resulting in minimal loss of hard tissues, permitted retention of the tooth.

Adult↗

PubMed1997

Surgical treatment of a periradicular lesion on an invaginated maxillary lateral incisor (dens in dente).

The complex anatomy of invaginated teeth make their root canal treatment difficult. Moreover, this treatment may compromise the future of the tooth if it is destined to support a post-retained coronal restoration. This case reports the successful surgical root canal treatment of an invaginated tooth using a retrograde filling with gutta-percha. After surgical exposure of the root-end and cleaning of the root canal, the gutta-percha was compacted in the root canal which had been coated previously with a zinc oxide-eugenol cement. The gutta-percha was then cold-burnished. Periapical radiographic examination after 1, 2, 3, 6 and 12 months showed periapical healing with osseous formation. This procedure, resulting in minimal loss of hard tissues, permitted subsequent restoration of the tooth.

Adult↗

PubMed1987