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Biomedical subjects

B Azaz

Publications and source records attributed to B Azaz.

At least 37 records · Page 2Linked to original sources
PubMed1981

Mandibular tumor-induced muscular weakness and osteomalacia.

The case presented is that of a 26-year-old man who suffered from muscular weakness and aching pains 2 years prior to hospitalization. During that period, a tumor in the mandible was diagnosed. During the neurologic work-up to find the cause of the muscular weakness, the possibility of a metabolic bone disease was raised on the basis of oral findings. The giant-cell nature of the mandibular tumor, with destruction of the periodontium, suggested hyperparathyroidism. The giant-cell nature of the mandibular tumor, with destruction of the periodontium, suggested hyperparathyroidism. However, biochemical findings ruled out this diagnosis and led to the final diagnosis of "tumor-induced osteomalacia." Removal of the mandibular tumor caused substantial improvement in the patient's physical condition and in the biochemical picture, which confirmed the diagnosis.

Adult↗
PubMed1980

Fluoride concentrations in fissure and cervical enamel of unerupted human teeth.

Fluoride concentration of fissure enamel from unerupted third molars was higher than that of the cervical-lingual but not cervical-buccal surfaces at a similar depth of the removed enamel. The highest fluoride concentration was found in the fissure enamel due probably to its earlier formation, higher permeability and embedding tissue before eruption.

Dental Enamel↗
PubMed1980

The sequelae of surgical exposure of unerupted teeth.

The late effects of surgical exposure of unerupted teeth were analyzed. Of 121 teeth, 62 had only the crowns exposed; additional traction was applied to 31 teeth and 28 were repositioned. Postoperative observation time ranged from eight months to 13 years. One hundred and eleven teeth assumed their position in the arch and were deemed successfully treated; ten teeth failed to erupt. Of the successfully treated teeth, 23% showed biological aberrations such as obliteration of the pulp, dwarfed roots, and denervation. These pathophysiologic changes, alone or in combination, were commensurate with the amount of trauma inflicted on the teeth. Teeth that wer repositioned showed the most change, whereas teeth that only had crowns exposed showed the least change.

Dentin, Secondary↗
PubMed1978

Modification of the muco-periosteal flap design in anterior maxillary osteotomies.

A modification of the mucoperiosteal flap planning for anterior maxillary osteotomy operations is suggested. This approach involves a total reflection of the labial mucoperiosteal flap, with the advantages of direct vision of the operative field thus providing easy and precise execution of the operative bony cuts, avoiding damage to the adjacent teeth and reduction of operating time. Sufficient blood supply to the mobilised segment is maintained through the palatal blood vessels. Corrective periodontal surgery may also be carried out at the same time.

Adult↗
PubMed1978

Resorption of the crown in impacted maxillary canine. A clinical, radiographic and histologic study.

Thirty-six maxillary impacted canines which showed coronary resorption were selected out of 252 impacted canines. Clinical, radiographic and histologic observations were performed. In the majority of the cases (31) a local inflammatory factor was present and only in five cases was the resorption idiopathic. The incidence of resorption was highest in the later decades of life. In all cases bone replacement was found.

Adult↗
PubMed1978

Cutaneous sinus tracts of dental origin.

The most common etiologic factor responsible for the intermittently suppurating cutaneous sinus tract about the face and neck is the extension of chronic infection of dental origin. Complete healing invariably follows the eradication of this source of infection. The presence of a cutaneous sinus tract about the face and neck should alert members of the profession to the necessity of routine dental examination including roentgenographic surveys of the teeth and jaws.

Adult↗
PubMed1977

Aging of tissues of the roots of nonfunctional human teeth (impacted canines).

In order to examine the aging of dentin and cementum, seventy-two impacted human canines, nonfunctional and not affected by external factors, such as attrition, abrasion, caries, etc., were surgically extracted. Ground sections were prepared and the areas of sclerotic dentin and cementum were measured with the aid of a planimeter and expressed as a percentage of the total root area. It was found that there is a significant increase in sclerotic dentin and apposition of cementum with an increase in age.

Aging↗
PubMed1976

Central hemangioma of the maxilla.

A case of central maxillary hemangioma is reported in which the only clinical symptom was spontaneous, recurrent, gingival papillary bleeding between the maxillary left premolars. The radiographic findings were inconclusive. It is strongly recommended that in cases where this diagnosis is suspected, surgical intervention be carried out under optimal conditions in an operating theater under hypotensive general anesthesia and with an ample supply of whole blood available.

Adolescent↗