Biomedical subjects

E Yücel-Eroğlu

Publications and source records attributed to E Yücel-Eroğlu.

4 recordsLinked to original sources

PubMed1996

Effects of a modified maxillary orthopaedic splint: a cephalometric evaluation.

Taking the presence of an interplay between the vertical and sagittal components of craniofacial development into consideration, the beneficial therapeutic potential impacts of controlling vertical development on the correction of Class II discrepancies has been previously investigated. In the present study, a modified maxillary orthopaedic splint combined with an anterior high-pull headgear was used for early correction of the vertical and consequently sagittal dentoskeletal discrepancy as the initial stage of treatment. The aim was to evaluate its effects on the maxillary and mandibular dentoskeletal development, as well as rotational growth pattern. In order to compare with and distinguish from the uninterrupted growth changes, a control group was formed by matching each one of the control subjects to a subject in the treatment group according to certain criteria. The initial and second standardized lateral cephalograms of each subject was evaluated by means of an adopted and biologically more substantial cephalometric analysis. Evaluation of the changes induced by the splint in comparison with the uninterrupted growth changes revealed that the splint had both orthopaedic and orthodontic effects on the growth pattern of the dentoskeletal structures. There seemed to exist a relationship between the direction of total mandibular and maxillary rotations. In addition, it was believed that in order to cause a forward mandibular rotation, i.e. to change the rotational mandibular growth pattern from a backward into a forward direction, the posterior vertical maxillary development should be restrained, but anterior vertical maxillary development should be relatively more restrained or reversed and, thereby, the rotational growth pattern of the maxilla should be changed from a backward into a forward direction. Moreover, the bite block effect of the splint seemed to cause a favourable change in the condylar growth direction from a backward to an upward direction.

Case-Control Studies↗

PubMed1996

Effects of thalassaemia major on components of the craniofacial complex.

The purpose of this study was to evaluate the craniofacial effects of thalassaemia major and involved a cephalometric analysis of two samples, consisting of 30 thalassaemic patients and 30 control cases. Differences between the groups were tested by Variance analysis (two factors completely randomized design). It was found that thalassaemia major had significant effects on components of the craniofacial complex: The typical thalassaemic patient had a moderate Class 2 skeletal discrepancy with pronounced vertical mandibular growth direction, prominent mandibular incisors, everted lips, and a narrowed nasal cavity.

Analysis of Variance↗

PubMed1994

Short-term consequences of orthognathic surgery on stomatognathic function.

Craniomandibular dysfunction, mandibular range of motion and occlusal contacts subsequent to surgical-orthodontic treatment were studied in 20 adults with Le Fort I impaction and/or advancement, 34 with vertical ramus setback, 12 with sagittal split advancement and 16 with Le Fort I impaction, and/or advancement and bilateral vertical ramus setback. All subjects were examined 1 week before surgery and 6 months post-operatively. The results of the study indicated that 6 months post-operatively: (a) There was a decrease (NS) in dysfunction patients in the maxillary and double-jaw osteotomy groups, and an increase in the mandibular advancement osteotomy sample (P < 0.05). (b) There was a significant decrease in maximal interincisal opening in both mandibular osteotomy groups (P < 0.01) and in laterotrusive movements in the mandibular advancement group (P < 0.05). (c) The number and intensity of occlusal contacts increased significantly in the maxillary and mandibular setback osteotomy groups (P < 0.01 and P < 0.001, respectively).

Adolescent↗

PubMed1994

Delayed calcification and congenitally missing teeth. Case report.

A case of delayed differentiation and/or calcification, that is, development, followed by accelerated growth of the maxillary second premolars is presented. This condition was accompanied by the congenital absence of mandibular second premolars even though maxillary and mandibular third molar germs were present. The case was followed over a five-year period. It seems that agenesis of any tooth might be found in conjunction with delay in development of any other tooth. Moreover, full development of a tooth germ (followed by an accelerated growth) as well as pathological changes may occur, despite an initial marked delay in tooth development.

Anodontia↗