Publications by authors named "Lekkas C"

Objective: Previously, a new embryological classification was introduced subdividing oral clefts into fusion and/or differentiation defects. This subdivision was used to classify all subphenotypes of cleft lip with or without alveolus (CL±A). Subsequently, it was investigated whether further morphological grading of incomplete CLs is clinically relevant, and which alveolar part is deficient in fusion/differentiation defects.

View Article and Find Full Text PDF

Purpose: Rupture of the anterior cruciate ligament (ACL) is a common and debilitating injury that impacts significantly on knee function and risks the development of degenerative arthritis. The outcome of ACL surgery is not monitored in Australia. The optimal treatment is unknown.

View Article and Find Full Text PDF

Objectives: To study maxillary arch width in adult patients with bilateral cleft lip and alveolus (BCLA) or with complete bilateral cleft lip and palate (BCLP), who have not had any surgery. SETTING AND SAMPLING POPULATION: Eighteen patients with BCLA, 13 patients with BCLP, and 24 controls from remote areas of Indonesia collected over 10 years.

Materials And Methods: Dental casts were digitized three-dimensionally using an industrial coordinate measuring machine (CCM) (Zeiss Numerex; Carl Zeiss, Stuttgart, Germany).

View Article and Find Full Text PDF

Background: The transversal measurement on the dento-alveolar fragments of the maxilla, in the unoperated adult patients with unilateral cleft lip and alveolus are rare and have not been well documented and archived in the scientific journals. The effect of the congenital malformation is obvious in the Unilateral Cleft Lip and Alveolus (UCLA) patients and is well documented.

Objectives: The aim of this study is to investigate whether there are any influences of the final transversal development of the maxilla based on the location and extent of the defect in patients with UCLA.

View Article and Find Full Text PDF

Post-process contamination of fresh acid-curd cheeses with Escherichia coli O157:H7 may pose a risk considering the low infectious dose and the ability of the pathogen to survive in acidic foods. To evaluate its survival in Galotyri, a traditional Greek acid-curd cheese, portions (0.5 kg) of two commercial fresh products, one artisan (pH 3.

View Article and Find Full Text PDF

The aim of this study was to establish surgical guidelines based on the growth pattern of ameloblastomas in relation to the possible infiltration of the cortical bone, the inferior alveolar nerve, the periosteal layer and the surrounding soft tissues. Five male patients with voluminous mandibular ameloblastomas were treated by means of radical surgery. Ameloblastomas showed an invasive growth pattern in the cancellous bone with small tumour nests at a maximum distance of 5mm away from the bulk of the tumour.

View Article and Find Full Text PDF

Sublethal concentrations of ethanol or isopropanol increased attachment of Listeria monocytogenes at 10, 20, or 30 degrees C; no induction occurred at 37 degrees C. The alcohol induction phenotype was retained in sigB and cesRK mutants; however, the degree of induction was affected. These results suggest that alcohol may contribute to the persistence of L.

View Article and Find Full Text PDF

Objective: The purpose of this study was to investigate the possible absence of teeth in the postcanine region of the upper jaw of the unoperated adult cleft patient.

Method: The study was performed on 266 dental casts of fully unoperated adult cleft patients. The patients were divided into four groups according to the type of the cleft: unilateral cleft lip and alveolus, unilateral cleft lip and palate, bilateral cleft lip and alveolus, and bilateral cleft lip and palate.

View Article and Find Full Text PDF

Objective: In this case report, we present an unusual combination of three congenital malformations: median cleft of the lower lip, lip pits, and unilateral cleft of the lip and palate without familial occurrence.

Conclusions: From an etiological point of view, this combination of malformations could have happened during the late embryogenic period. Why this combination is uncommon is not known.

View Article and Find Full Text PDF

As a possible cause of osteoarthrotic changes of the temporomandibular joint (TMJ), trauma has often been suggested in the literature. Very few authors have tried to test the reliability of this theory by animal experiments. Sixty Wistar albino rats, divided into two main groups, were used in this investigation.

View Article and Find Full Text PDF

In surgically treated patients with clefts of the lip, alveolus, and/or palate, the vertical, transversal, and sagittal development of the maxilla is influenced by intrinsic, functional, and iatrogeneous (surgical) factors. To evaluate the effect of intrinsic and functional factors on dental arch development, we examined and compared unoperated adult individuals with different types of clefts. Dental casts of 37 Indonesian adults with unoperated unilateral clefts were studied: 15 subjects with unilateral cleft lip and alveolus (median age: 24 years) and 22 subjects with complete unilateral cleft of lip, alveolus, and palate (median age: 25 years).

View Article and Find Full Text PDF

An unusual case of a residual cementoblastoma in a 24-yr-old man is described. The final diagnosis has been based on the history and the clinical, radiographic and histologic features. The lesion has been removed in toto.

View Article and Find Full Text PDF

A sample of 16 rats was used as experimental material to evaluate the effect of surgical repositioning of the disc of the temporomandibular joint according to the technique described by McCarty and Farrar (1979) and its variation according to Leopard (1984). The animals were killed 6 weeks postoperatively. Macroscopic and microscopic examination revealed that in all rats treated according to the procedure of McCarty and Farrar (1979) the disc had completely disappeared.

View Article and Find Full Text PDF

Twenty-five edentulous patients with established hyperparathyroidism were evaluated to establish a possible relation between extreme reduction of the height of the mandible and systemic bone loss. As an important parameter of the severity of the systemic bone loss, the level of the intact biologically active molecule of the parathormone was used. In this study no relation between hyperparathyroidism and reduction of the residual alveolar ridge could be established.

View Article and Find Full Text PDF

Triangular defects were made in different locations of the disc in rat temporomandibular joints. After 3 months the following effects were observed. Central defects had become rounded without gross changes in the mandibular head.

View Article and Find Full Text PDF

To compare the clinical results, complications and morbidity of osteotomies, secondary cleft repairs and ridge augmentations in which frozen femoral head homologous bone or autologous bone was used, a series of 61 patients with follow-up periods of 1 to 6 years has been reviewed. Long-term clinical observation shows that, with a correct indication and surgical technique, frozen homologous bone is a good alternative to autologous bone in clinical grafting procedures.

View Article and Find Full Text PDF

Cowden's syndrome or multiple hamartoma and neoplasia syndrome is a hereditary disorder combining multiple hamartomas of many organs. These hamartomas are derived from ectodermal, mesodermal, and endodermal tissues and may undergo spontaneous malignant changes. Small papular cutaneous lesions and papillomatous outgrowth and papular lesions of the oral mucosa are the most predominant features of the syndrome.

View Article and Find Full Text PDF

Fractures of an atrophic edentulous mandible may present a serious problem in oral surgical treatment. A case is described in which a traumatic mandibular fracture, initially treated by means of a Gunning type of splint, and a subsequent spontaneous fracture on the opposite side were treated without mechanical fixation.

View Article and Find Full Text PDF
Lipoma of the tongue.

Oral Surg Oral Med Oral Pathol

September 1979

A case of an enormous lipoma of the tongue is presented. The absence of dentoalveolar changes and the complete adaption of the functions of the tongue are discussed briefly.

View Article and Find Full Text PDF

An improved simplified technique is described for reducing the volume of the tongue by operation. A plastic support has been designed on which the tongue can be spread out symmetrically and fixed in position. Gallbladder forceps are applied to the base of the tongue to avoid hemorrhage.

View Article and Find Full Text PDF