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Biomedical subjects

J Delaire

Publications and source records attributed to J Delaire.

At least 55 records · Page 3Linked to original sources
PubMed1987

Balanced facial growth: a schematic interpretation.

Balanced facial growth is a complex process that involves maxillary, mandibular, dental, and cranial growth. Growth of the maxilla is due to special movements of translation, rotation, and elongation as well as to growth of its skeletal units and skeletal structures. Growth of the mandible is the sum of growth of all of its skeletal units. Cranial growth influences both maxillary and mandibular positions, which themselves can vary interdependently, in part because of the mutual influences of the maxillary and mandibular dentitions.

Facial Bones↗
PubMed1987

[Methods for the evaluation of abnormalities of the bony chin with a view toward surgical correction].

The bony chin is not placed in its position by chance. As with the other skeletal pieces of the face, it is controlled by the major laws of craniofacial morphologic and functional equilibrium. Clinical evaluation of anomalies of position of the bony chin in the three spatial planes is not sufficiently precise, and craniofacial structural and architectural analysis is an essential aid for determining origin of the mental dystopia and surgical remedial means. The aim of the latter is to restore the bony chin to its position of craniofacial equilibrium, the only way to obtain a stable functional result.

Cephalometry↗
PubMed1986

Computed axial tomographic assessment of cranioorbital anatomy in unilateral clefts.

Anatomy of the cranioorbital region in the unoperated infant with cleft lip/palate, is not well known. In this study, computed axial tomography was performed in 7 infants with unoperated unilateral cleft lip combined with cleft palate but no recognized craniofacial syndromes, and on 5 age-matched control infants. Significant differences were found between the infants with cleft lip/palate and the normal infants. There was more plagiocephaly in the cleft group, and the flattened forehead on the involved side was associated with less facial projection. The angles of the petrous portions of the temporal bones and midsagittal plane were also significantly more obtuse in the cleft group. In the normal group the lateral orbital walls and petrous portions of the temporal bones formed a large symmetrical X. This X in the cleft groups was distorted and not readily recognizable. There were also trends indicating possible differences in the orbital and ethmoid orientations in the two groups.

Cleft Lip↗
PubMed1986

[Hematic cyst of the masseter. Apropos of 2 cases].

An isolated swelling of the masseter raises an aetiopathogenic problem which may be encountered by any stomatologist. There are a number of diagnostic possibilities, in particular tumours. The authors report two cases with a special clinical picture: hematic cyst of the masseter. Treatment is surgical: excision via an endobuccal approach. Histological examination of the operative specimen reveals vascular dystrophy.

Adult↗
PubMed1986

Influence of the nasal septum on maxillonasal growth in patients with congenital labiomaxillary cleft.

An interpretation of the role of the nasal septum on maxillonasal growth in patients with congenital labiomaxillary clefts is presented. Salient features of the anatomic pathology and resultant dysfunction of the premaxillary-maxillary suture and the position and orientation of the nasolabial muscles relative to the nasal septum are discussed for unilateral and bilateral deformities. The nasal septum plays an important direct role in growth of the premaxilla and an indirect role in growth of the maxilla.

Cleft Lip↗
PubMed1986

[The tongue in facial hemihypertrophy].

As reported by Gorlin, Pindborg and Cohen, hemifacial hypertrophy is not an affection sui generis, but one that presents different aspects and is of varied etiology. The presence of a tumor must be excluded initially. The hemifacial lesion may be congenital, and form part of a diffuse affection involving the whole of one side of body including hard and soft tissues such as the tongue. Because of their role in cephalic organogenesis, an alteration in cells of neural crests appears to be at the origin of this form but the authors consider that the initial lesion develops at a much earlier stage. The lesion may be tissue-orientated: nervous as in the case of Recklinghausen's neurofibromatosis; vascular as in diffuse angiodysplasias such as the Klippel-Trenaunay-Weber syndrome. Here again the tongue participates in the expression of the disease. Finally, hemifacial hypertrophy may be secondary to a bone lesion as found in more or less diffuse fibrous osteopathies or possibly hypercondylar disorders, the absence of a tongue lesion being a diagnostic factor.

Face↗
PubMed1985

Correction of anterior mandibular vertical excess: the functional genioplasty.

The functional genioplasty is an osteotomy-ostectomy of the anterior mandible which reduces excessive lower anterior facial height to 55% of the total anterior facial height. The procedure is indicated particularly when one factor contributing to the long-face syndrome is vertical excess of the anterior mandible. The surgical technique involves creation of a tenon and mortise which not only preserves the insertions of both the labiomental muscles and at least some of the suprahyoid muscles but also improves the stability of transosseous fixation. Superior repositioning and advancement of the chin and myocutaneous structures produce both functional and esthetic benefits for the patient.

Cephalometry↗
PubMed1985

Avoidance of the use of vomerine mucosa in primary surgical management of velopalatine clefts.

A brief review of normal maxillary growth and the dysfunctional pathoanatomy of velopalatine clefts is presented. A plan of management for patients with these deformities is proposed; this is based on the degree to which the deformity departs from normal. The authors stress the importance of early, complete reconstitution of the soft palate and avoidance of the use of vomer flaps in the closure of the hard palate. The influence of the vomer, nasal septum, and labionasal musculature on postnatal facial development is discussed.

Child, Preschool↗
PubMed1985

[Maxillofacial reflection of choanal atresia. Apropos 11 cases].

The authors study the maxillofacial repercussions of choanal imperforation based upon 11 cases (8 unilateral and 3 bilateral). Skeletal abnormalities are defined using teleradiographic and tomographic techniques. The origin of these abnormalities is sought: malformations, deformities or sequelae of surgical treatment.

Adolescent↗
PubMed1985

[Maxillofacial sequelar manifestations of Silverman's syndrome].

The Silverman's syndrome or "child abuse syndrome" consist in several symptomes whose about 50% are maxillo-facial ones. These which are must often unknown at the initial stage, are responsible for an after effect syndrome, involving very significant nasal, oral, labial and buccal lesions. The anomalies of facial growth are the results of chronic lesions of cartilagenous septum and of nose bone area. A better understanding of this syndrome should held to diagnose it as quickly as possible. Indeed children are endangered by a lack of protective measures.

Battered Child Syndrome↗