PubMed Health⌕ Search

Biomedical subjects

N Samman

Publications and source records attributed to N Samman.

44 records · Page 3Linked to original sources
PubMed1993

Immediate reconstruction following maxillectomy: a new method.

A new method for immediate reconstruction of the maxilla after resection is described. The ipsilateral pedicled temporalis muscle is tunneled into the defect and sagittaly split into two layers. The inner layer is used to line the nasal side. An individually shaped titanium mesh, tightly filled with free autogenous corticocancellous bone, is fixed by titanium screws to the remnant of the zygoma and contralateral maxilla. The outer layer of the split muscle covers the reconstruction, the temporalis fascia forming the oral side. The method resulted in good cosmetic appearance and permitted the re-creation of a maxillary alveolar ridge suitable for endosseous implants or a simple prosthesis.

Adolescent↗
PubMed1993

Bilateral transverse facial clefts and accessory maxillae--variant or separate entity?

We report an extremely rare case of bilateral transverse facial clefts and accessory maxillae with severe mandibular hypoplasia in a 7-year-old Chinese boy. The transverse facial clefts had been repaired in infancy. The accessory maxillae were excised via a combined temporal and oral approach. Functional orthodontic appliance therapy was not feasible due to restricted protrusive movements of the mandible. Bimaxillary osteotomies were performed one year later due to failure mandibular catch-up growth to occur. The pathogenesis of the accessory maxillae in the presence of lateral facial clefting is postulated to be compensatory mesenchymal growth from the temporal region, and a case is made for this condition to be considered as a possible syndrome rather than a variant of the transverse facial cleft.

Child↗
PubMed1992

Variants of the adenomatoid odontogenic tumor with a note on tumor origin.

Three rare variants of the adenomatoid odontogenic tumor (AOT) are described. A follicular AOT associated with an impacted and displaced 28, an extra-follicular variant mimicking a radicular cyst around the apex of 23 and a peripheral (epulis-like) variant exhibiting a periodontal bone defect palatal to 21. On reappraisal of the origin and pathogenesis of the AOT, it would seem that this tumor or hamartomatous lesion is derived from odontogenic epithelium of the dental lamina complex or its remnants.

Adolescent↗
PubMed1992

Analysis of 300 dentofacial deformities in Hong Kong.

The records of 300 consecutive Chinese patients with a dentofacial deformity were reviewed to determine the spectrum and characteristics of deformities presenting to a university joint orthognathic clinic. Twenty-six percent of the patients had cleft lip and palate with maxillary hypoplasia; within this group, 26% had double jaw deformity and 5% had nasomaxillary hypoplasia. Of the noncleft group, 47% were Class III facial types, of which 59% were due to mandibular hyperplasia. Of the noncleft group, facial asymmetry accounted for 21%, long face for 18%, bimaxillary protrusion for 14%, Class II types for 11%, and short face for 4%. Overall, there was a high incidence of two-jaw deformity, suggesting that severity may be a major factor in the decision by patients to seek treatment. Findings from this study are thought to be generally applicable to overseas Chinese.

Adolescent↗
PubMed1991

Feasibility of osteotomies in fibrous dysplasia of the jaws.

Two examples are presented of osteotomies performed simultaneously with surgical recontouring in cases of fibrous dysplasia of the jaws. Osteotomies are necessary when a coexistent discrepancy in jaw relationship is present. This provides a functional as well as aesthetic result. Rigid miniplate fixation was utilised, and dysplastic bone healing was uneventful, and found clinically not to differ from that of normal bone. Osteotomy is thus feasible in dysplastic bone, and may complement recontouring in achieving a better result.

Adult↗
PubMed1984

Disseminated intravascular coagulation and facial injury.

A severe case of disseminated intravascular coagulation secondary to a road traffic accident in a pregnant woman is presented. The nature of this recognised complication of pregnancy is noted, and the problems encountered when it occurs together with facial trauma, are described. The importance of awareness and recognition of this condition is emphasised.

Abruptio Placentae↗