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Biomedical subjects

J Brethaux

Publications and source records attributed to J Brethaux.

At least 19 recordsLinked to original sources
PubMed1997

[Early functional surgery as a component of interceptive treatment of developing dysmorphosis in adolescents].

A discordance in the shape and relation between dental arches may be corrected by functional orthopaedics. Discovered in the adolescence, the dysgnathia has yet run its course and it remains just a bit of growth power, this situation justifies to recourse to interceptive surgery, meant for facilitation of oral reeducation and thus harmonisation of residual facial growth. This "functional surgery" is composed of tongue myoplasty, functional genioplasty and the early corrective orthopaedic surgery which is defined by its association with immediate reeducation. It is characterized by its benignity and stability of its results if occlusal and functional surroundings are equilibrated. Moreover, its profits by residual growth power which became well guided, and assures improvement of immediate postoperative results, if needed.

Adolescent↗
PubMed1991

[Dynamic bite block in fractures of the mandibular condyle and following surgery of temporomandibular ankylosis in children].

Early mobilization is the rule in cases of fracture and temporomandibular joint surgery. When prematurely discontinued, it may sometimes prove insufficient to prevent temporomandibular ankylosis in the child. Blockade in the open-mouth position is in keeping with an important general orthopedic rule, i.e., immobilization of joint fractures in position of function (ankylosis is loss of function, and is reflected by the child's inability or limited capacity to open his/her mouth). Continued night wear of re-habilitation devices, once consolidation is acquired, affords active joint mobilization during meals that is sufficient owing to the strength of the elevator muscles (five times than of the depressors).

Ankylosis↗
PubMed1991

[Lingual-mandibular remodeling resection in prognathism].

The combination of --hypoplastic upper jaw, with narrow soft palate, --glossoptosis (or low, propulsive tongue), associated with protrusion of lower jaw, is well known. Early, exclusively orthopedic management combines enlargement of the superior arcade; functional/postural re-education of the tongue. Surgical management comes in later; it associates modeling resection of the tongue intended to position the tongue against the palate, with Chevron's mandibular resection, suppression of the first premolar, and salvaging the mental nerve. This type of osteotomy is indicated whenever a 6 to 8 mm mandibular retrusion is required. Fixation is monomaxillar, via extemporaneous splinting, associated with low external cortical osteosynthesis. The latter allows for gain of motor activity as early as the second day post-surgery.

Adolescent↗
PubMed1989

[Cauhépé-Fieux syndrome. Interception in the deciduous dentition of mid-face hypoplasia].

Inadequate transverse development of the milk dentition alveolar arcade (Cauhepe-Fieux syndrome) may have important effects on the constitution of facial architecture and in the medium term require orthognathic surgery. The acquisition of dental arcade contact on deglutition is only possible after normalization of the dimensions of the arch of the palate. The recommended suture inducing prosthesis should obligatorily include intercalating molar plates designed to overcome inadequate occlusion during treatment (on average 9 months). Both stimulation of growth at the level of the intermaxillary suture in this age group, and the stability of the results obtained, have been demonstrated after a period of follow up of more than 10 years taking into account the cybernetic aspects of the studies carried out by Professor Petrovic.

Child, Preschool↗
PubMed1988

[Genioplasty in adolescence].

Different possible types of genioplasty in adolescence are envisaged: pure subtraction, conjugated subtraction, apposition, addition and in particular transfer for correction of the facial asymmetry of temporomandibular ankylosis sequelae. It is difficult to predict results and it is necessary to remain within a known framework in which esthetic and psychologic demands must occupy a very important place.

Adolescent↗
PubMed1986

[Capdepont dysplasia and vertical excess of the lower half of the face. Genetic syndrome or fortuitous association?].

The study of an Algerian family revealed that four of the seven children presented dentinogenesis imperfecta associated with an anomaly of the facial skeleton (maxillary hypoplasia, anterior expansion of skeletal origin due to widening of the angle of the gonion). This type of association and its very unusual type of transmission (no doubt recessive) leads to a discussion of genetic mechanisms of these syndromes.

Child↗
PubMed1986

[Mandibular reconstruction following extensive unilateral resection in children].

Follow up 30 months after extensive bone resection of mandible with disarticulation of condyle for widespread tumor of angle in a 9 1/2 year old child showed very satisfactory functional and esthetic bone reconstruction. Favorable elements were: conservation of periosteum made possible from results of histology of fresh specimen (showing eosinophil granuloma); the immediate insertion of a temporary prosthesis in strengthened resin to maintain anatomical relations and spontaneous functions.

Child↗
PubMed1985

[Preoperative potentiation of immune defenses or postoperative antibiotic therapy?].

A clinical study was conducted during the postoperative period in adolescents to compare efficacy of two regimens by objective (temperature, edema) and subjective (pain) criteria. half had received preoperative immunotherapy and the other half conventional postoperative antibiotic treatment. Operations were germectomy of a wisdom tooth and maxillary osteotomy. Results were submitted to statistical analysis and data obtained from the objective and particularly subjective parameters studied led to the routine introduction of preoperative immunotherapy for these operations.

Adolescent↗
PubMed1984

[Reposition osteoplasty of the median process in bilateral labiomaxillary clefts].

Twenty two bilateral cleft lips accompanied by a premaxilla protusion and associated with cleft palates have been operated according to the technic called "Premaxilla Reposition Osteoplasty". This operation must follow the cheiloplasty. It is often preceeded by an orthopedic appliance, used to make place for the premaxilla. The main goals are: to normalize the incisors level in relation with the one of the decidual canines and molars; to obtain a synostosis of premaxilla and lateral parts of the cleft maxilla osteous ridges; to close the residual vestibular and palatal hiatus. The good results observed in twenty cases have made easier the complementary orthodontic or surgical treatments.

Child, Preschool↗
PubMed1982

[Etiological treatment of anterior vertical excess of the lower portion of the face].

Antero-vertical excess of the lower third of the face is associated with dysfunction of the base of the tongue and widening of the goniac angle. This dysfunction forms part of a complex dynamic clinical picture: antero-vertical excess can complicate: -retrognathism -acceptable bone relations as shown by cephalometric measurements after correction of the goniac angle; -a true mandibular prognathism. Contrary to its reputation, we believe sagittal osteotomy of the rami to be the method of choice, because it permits: 1) correction of the goniac angle, 2) completion by an advancement or by a backing of the dental portion of the mandible. This technique is said to have a high relapse rate, no doubt due to disregard for the indispensable rehabilitation of lingual dynamics in the post-operative phase. With a follow-up of between one year and 6 years, we have seen no cases of relapse by following these rules: 1) Routine tongue modelling starting 6 months before the orthopaedic operation. 2) Kinesiorthophony to raise the usual positions of the base of the tongue.

Adolescent↗
PubMed1980

[Analysis of lesions from mandibular fractures in children. Therapeutic methods (author's transl)].

A statistical analysis was conducted in 22 recent cases of fracture and 4 cases of post-fracture ankylosis treated in the "Hôpital Bretonneau" over the last 5 years. The results demonstrated the frequency of often unrecognized associated condylar lesions (19 of 22 cases of recent fracture). They also emphasized the need to avoid conventional bimaxillary blocking, which when required should be conducted with the "open mouth", in cases of high or severe lesions of the mandibular condyles. Reconstruction of the condylar head involves re-insertion of the meniscular cap associated with regain of function, rather than conservation at any price of the condylar head, even recovered with its "fertile" cartilage.

Adolescent↗
PubMed1980

[Unilateral post-fracture ankylosis and facial growth in infants: therapeutic considerations (author's transl)].

Ankylosis of this type should be treated as early as possible. Resection of the ankylosed block should be avoided, and all that is required is reconstruction of a new condyle, subjacent to meniscal remnants that are usually present. As large as possible an inter-fragment space is obtained by forced lowering of the vertical branch, which is maintained in position by a blocking apparatus with a maximal molar gap. The validity of these principles is supported by the results in the case reported, after a lapse of 5 years.

Adolescent↗
PubMed1978

[Recurrent infectious parotiditis in the child (author's transl)].

On the basis of 18 cases of recurrent parotiditis in the child, the authors offer the current review of this condition: clinical features, radiological features, bacteriological features, course. They emphasize the importance of precise technique during sialography, which must include straight and lateral films. The progress of this condition is characterised by recurrences. These may be avoided by prolonged and appropriate antibiotic therapy. The improvement which takes place at puberty is of etiopathogenic significance. Bucco-dental septis, constantly present, is one of the causes favourising infectious parotiditis in child.

Bacterial Infections↗