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Biomedical subjects

G Trigonidis

Publications and source records attributed to G Trigonidis.

At least 37 records · Page 2Linked to original sources
PubMed1979

Free transplantation of lyophilized dura for vestibuloplasty: a clinical and histological study.

Covering epithelial defects in the oral cavity is often neccessary in maxillofacial surgery. Special problems arise in preprosthetic surgery because requisites for function and quality of epithelial grafts must be satisfied. Using free heterologous lyophilized dura grafts for vestibular sulcoplasty in 23 patients, we observed a good clinical and histological healing process. Considering the necessity of a second operation for skin or mucosal grafts (and the limited source of mucosa), we believe that the lyophilized dura can be used successfully in preprosthetic surgery.

Adult↗
PubMedDate not supplied

[The effect of the chronic irritation and pregnancy in the development of the pregnancy tumor. Experimental study in rats].

This study was undertaken in purpose to estimate the chronic irritation as an aetiological factor in the development of pregnancy tumor. Wire was attached around the first upper molar of 40 female rats, so that its free ends would irritate the mucosa of the cheek. The rats were divided in groups A, B and C. Group A contained 15 rats which were placed for fertilization 7 days after the irritation started. Group B contained 15 rats which were placed for fertilization immediately after the irritation started. Group C contained 10 rats which remained with the irritation. All rats were sacrificed 50 days after the experiment started and the irritated mucosa of the cheek was removed, fixed in formaline and examined histologically. In 11 rats of group A and in 7 of group B a small size tumor appeared in the irritated region. In the remaining rats, ulceration was present. The histological findings of the tumors were compatible with pregnancy tumors. Our results support that the hormonal changes during the pregnancy consist the primary aetiological factor in the development of pregnancy tumors and that the local chronic irritation acts as a secondary auxiliary factor.

Animals↗
PubMedDate not supplied

[Clinical study of sialolithiasis. Findings from 100 cases].

The present work is based on a study of 100 cases of sialolithiasis referred to the Department of Oral Medicine, Dental School, University of Thessaloniki during the period 1963-1986. Among 100 cases sialolithiasis was distributed as following: Submandibular glands 89 cases, parotids 8 cases and minor salivary glands 3 cases. Sialolithiasis of sublingual glands were not found. In most of the cases the calculus was single while on 16 cases calculi were double or even more. Among the cases of sialolithiasis of minor salivary glands we found single in two cases while in the remaining one the calculi were double. There was a slight but not significant prevalence in the male sex (52 male/48 female) and their age varied from 6 to 70 years. In 72% of the cases the patient's age was under 40 with the most common (34%) in the 3rd decade. Inflammatory swelling of the sublingual plica and wharton's duct appeared in 46.4%. Complication of acute sialadenitis was observed in 23.7% of the cases. The first symptom was swelling of the gland during the meals (88.7%) while pain in the gland was followed after different period of time. The duration of symptoms was ranged between 1 to 30 years in 3% of the cases, and in the remaining 61% it ranged from 1 day to 1 year. The calculi were removed surgically in 40 cases and conservatively in 8 cases. All three cases of minor salivary gland sialolithiasis were treated surgically. The remaining 49 patients didn't return for complete treatment.

Adolescent↗
PubMedDate not supplied

[Oral lichen planus. A clinical study of 228 cases].

Oral lichen planus is a common dermatologic disease of unknown etiology, with characteristic clinical manifestations from the skin and the oral mucosa as well. In our study we analyzed the observations in 228 patients with oral lichen planus. The location and the type of the oral lesions of this disease are discussed as well as the prevalence of age-sex and the incidence of the disease. The results of our findings can be summarized as following 1) The reticular type is the most common clinical form. 2) Buccal mucosa is the most frequent location. 3) Females are affected more frequently. 4) The most frequent age in which the disease appears is the 6th decade. The importance of these conclusions are compared and discussed with the findings of other authors.

Adolescent↗
PubMedDate not supplied

[Oral leukoplakia. A clinicopathologic study of 190 cases].

In this study an attempt was made to correlate the causative factors of leukoplakia. Histologic criteria helped for the classification of our cases in three groups according to widely accepted standards. As final result it is that smoking and excess use of alcoholic drinks could be involved as causative agents. The clinical appearance of the leukoplakia lesions with their histological type is also correlated.

Adolescent↗