[The nutrient canals. Radiographic alterations of the mandibular anterior region in diabetic patients]. / Oi trophophoroi poroi tes prosthias perioches tes kato gnathou, se atoma me sakcharode diabete.

The aim of this investigation was to study the incidence of the appearance of the nutrient canals in the mandibular anterior region of periapical radiographs of patients with diabetes mellitus. A total of 133 patients were examined, 73 patients exhibited diabetes mellitus, where 60 patients did not. The results of this investigation showed that: 1. The incidence of the appearance of the nutrient canals is much greater in the patients with diabetes mellitus (75.34%) than in the patients were used as control (41.66%). 2. In patients with diabetes mellitus, nutrient canals are seen more frequent in males (54.52%) than in females (45.48%). 3. The number of nutrient canals seems to have relation with the duration of disease and the recent value of blood glucose.

[Incidence of xerostomia in patients with drug-controlled diabetes mellitus]. / Euchnoteta emphanises xerostomias se astheneis me sakcharode diabete rythmizomeno pharmaka.

A hundred and fifty patients with drug-controlled diabetes mellitus complaining for xerostomia were examined, in order to evaluate the incidence of xerostomia with sex, duration of the disease and recent value of blood glucose. Xerostomia was recorded in 76% of the patients with a predilection for women (50.87%). Finally, the incidence of xerostomia was not related with duration of the disease and recent value of blood glucose.

[Valuable information from the medical history and intraoral examination of diabetic patients]. / Axiologese tou historikou kai tes klinikes exetases tou stomatos asthenon me sakcharode diabete.

A hundred and eighty patients with drug-controlled diabetes mellitus were examined, in order to find out mainly if there is any correlation between their medical history and their intraoral manifestations. The results of this study showed that: 1. Seventy five per cent of patients with diabetes mellitus control their disease with antidiabetic drugs. 2. Almost half of the patients with controlled diabetes mellitus (49.44%) maintain the recent value of blood glucose in low level (170 mgr%). 3. The duration of the disease was related to the dental and gingival clinical features, while the recent value of blood glucose and the antidiabetic regimen were not.

[Incidence of nutrient canals in hypertensive patients]. / Eychnoteta emphanises trophophoron poron se hypertasikous astheneis.

The purpose of this investigation was to study the incidence of the appearance of the nutrient canals in periapical radiographs of the mandibular anterior region, in hypertensive patients. Of the 120 patients studied, 60 exhibited hypertension where the rest 60 did not. The results of the present study showed that: 1. The incidence of the appearance of the nutrient canals is much greater in the patients with hypertension (55%) than in the patients without (41.66%). 2. In patients with hypertension nutrient canals are seen more frequent in males (68.75%) than in females (39.28%). 3. The number of nutrient canals increases with age in both groups of patients.

[Determination of absorbed doses of radiation in patients during orthopantomography]. / Prosdiorismos ton doseon aktinobolias se astheneis kata te lepse orthopatnomographematos.

The aim of this study was to determine the absorbed doses of radiation in the skin region of temporomandibular joint (T.M.J.) maxillary sinus, parotid gland, body of mandible and thyroid gland during orthopantomographic examination. For this purpose were used a siemens orthopantomograph-OP2, Palomex OY: 75 KVp, 15 mA and 15 sec; 47 male patients about the same age, weighing and height who were selected from the oral Diagnosis Clinic of Athens University, and had indication for orthopantomographic examination. The calculation was performed with thermoluminescent dosimeters (T.L.D.) which were calibrated by a known source of Co60 before use. Dosimetry were calculated in T.L.D. detector Model 2000 A-2000 C Harshaw Chemical Co. and the results of calculations were the following: 1. Dose above 0.35 cGy received the parotid and the thyroid region. 2. Dose below 0.35 cGy received the T.M.J., maxillary sinus and body of mandible region. 3. Doses on the right side were greater than the left side.

[Incidence of nutrient canals in hypertensive patients with alveolar bone loss. A radiographic study]. / Euchnoteta emphanises trophophoron poron se aktinographemata asthenon me ypertase kai phainiolysia.

The purpose of this study was to determine the incidence of the appearance of nutrient canals in periapical radiographs of the mandibular anterior region of hypertensive patients with alveolar bone loss. A total of 220 patients were examined, 120 patients exhibited hypertension and radiographic signs of alveolar bone loss, where 100 patients did not. The results of the present study showed that: 1. The incidence of the appearance of the nutrient canals is much greater in the hypertensive patients with alveolar bone loss (58.33%) than in the nonhypertensive patients without alveolar bone loss (54%). 2. In hypertensive patients with alveolar bone loss, nutrient canals are seen more frequent in females (59.01%) than in males (57.62%). 3. The number of nutrient canals increases with severity of alveolar bone loss.

[Determination of absorbed doses of radiation during lateral cephalometric radiography]. / Prosdiorismos ton doseon aktinobolias kata te lepse plagiou kephalometrikou aktinographematos.

The aim of this study was to determine the absorbed doses of radiation in skin and deeper tissues as well as in critical organs, in vitro. For this purpose were used: a Siemens Orthoceph-10 cephalometric unit; a tissue equivalent Phantom head, type Rando; 43 thermoluminescencent dosimeters (T.L.D.), rare earth screens type, Siemens titan ZHS and Dupont Cronex-4 films 24 x 30 cm. Of the 43 T.L.D. 21 were places on the skin head, face and neck surface and 22 were places in deeper tissues and organs, and the exposure parameters were: 77 Kvp, 12 mA and 0.8 sec. The results of this study showed that: 1. doses on the left side towards focus were greater than the right side. 2. surface skin doses were ranged between 0.10 to 0.21 mGy. 3. Doses in deeper tissues or organs were varied and depended on the location and the consistency of tissue and were greater than the surface skin doses. Comparing our results with the results of other studies we can conclude that dose reduction to patient, can be achieved with use of rare earth screens in combination with fast speed film and the use of low exposure parameters.