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Biomedical subjects

A Alacam

Publications and source records attributed to A Alacam.

7 recordsLinked to original sources
PubMed1998

Superoxide dismutase activity in healthy and inflamed pulp tissues of permanent teeth in children.

The free radicals play an important role in the tissue damage. Oxygen-derived free radicals are controlled by various cellular defense mechanisms consisting of enzymatic such as superoxide dismutase, catalase, glutathion peroxidase and nonenzymatic scavenger components. Superoxide dismutase (SOD) is responsible for the dismutation of the superoxide radicals into hydrogen peroxide and molecular oxygen. In this study, pulp samples extirpated from the teeth of the 27 children between 10-15 ages which diagnosed to be healthy, reversible pulpitis or symptomatic irreversible pulpitis were evaluated for the activity of superoxide dismutase enzyme. There were statistically significant differences between healthy and reversible pulpitis, and between reversible and symptomatic irreversible pulpitis groups. The SOD activity of the reversible pulpitis group were significantly lower than the irreversible pulpitis and healthy pulp groups. The evaluation of the data revealed that the quantity of SOD as a vitality protector enzyme is low at the beginning of the inflammation as a consequence of rapidly depletion and/or destruction of this enzyme, but as the inflammation proceeds the pulp tissue showed adaptation to this situation.

Adolescent↗
PubMed1996

Apical microleakage of primary teeth root canal filling materials by clearing technique.

The purpose of this study was to evaluate apical leakage of primary teeth root canals sealed with four different root canal filling materials by clearing technique. Dye penetration ratios of all groups were measured by light microscopy. The mean dye penetration was determined in the group of ZOE to be 0.57 mm. This ratio was 1.05 mm in the group of ZOE + glutaraldehyde (GA). In the groups of Kri I and Ca(OH)2, dye penetrations were 0.47 mm, 0.56 mm respectively. The highest apical leakage value was evaluated in the glutaraldehyde + ZOE group (p<0.05), whereas, no statistical difference was found between the other groups.

Calcium Hydroxide↗
PubMed1995

Slime production by coagulase-negative staphylococci in the infected pulps.

In this study; slime factor which is produced by coagulase negative Staphylococci was investigated in infected pulps of 145 primary and permanent teeth. Staphylococci were isolated in 27% of the cultures and all of the isolated Staphylococci were coagulase negative (CNS) in permanent teeth whereas 75% of isolated Staphylococci were coagulase negative in primary teeth. Slime production rate was the same for both groups and 22% of CNS were found slime positive. It is thought that slime production is important not only in endodontic microbiology, but also in other fields of dentistry for the explanation of the pathogenesis of infection.

Bacterial Capsules↗
PubMed1990

Relation of ectodermal dysplasia and hypodontia.

Ectodermal dysplasia and hypodontia were diagnosed in three families who referred to Gazi University Pedodontic Department in 1989. From the view point of dentistry, it is intended to point out the genetic transitive character of ectodermal dysplasia and its possible relation with hypodontia. Also; some approaches to satisfy the patients in social and psychological aspects besides replacing the functional and cosmetic demands were carried out.

Adolescent↗
PubMed1989

Pulpal tissue changes following pulpotomies with formocresol, glutaraldehyde-calcium hydroxide, glutaraldehyde-zinc oxide eugenol pastes in primary teeth.

Pulpal tissue changes following pulpotomies with formocresol, glutaraldehyde-calcium hydroxide and glutaraldehyde-zinc oxide eugenol pastes in primary teeth were investigated for a period of 12 months. Compared with the other groups, clinical, radiographic and histologic examinations revealed glutaraldehyde-zinc oxide eugenol combination had a higher success rate.

Aldehydes↗