Masseter function and skeletal malocclusion

The aim of this work is to review the relationship between the function of the masseter muscle and the occurrence of malocclusions. An analysis was made of the masseter muscle samples from subjects who underwent mandibular osteotomies. The size and proportion of type-II fibers (fast) decreases as facial height increases. Patients with mandibular asymmetry have more type-II fibers on the side of their deviation. The insulin-like growth factor and myostatin are expressed differently depending on the sex and fiber diameter. These differences in the distribution of fiber types and gene expression of this growth factor may be involved in long-term postoperative stability and require additional investigations. Muscle strength and bone length are two genetically determined factors in facial growth. Myosin 1H (MYOH1) is associated with prognathia in Caucasians. As future objectives, we propose to characterize genetic variations using "Genome Wide Association Studies" data and their relationships with malocclusions.

[Comprehensive approach to treatment of patients with teeth-jaws anomalies accompanied by nose functional disturbances and esthetic deformations]

Problem of medical rehabilitation of patients with teeth-jaws anomalies accompanied by nose functional disturbances and esthetic deformations was viewed. Method of comprehensive reconstructive intervention on facial cranium was presented allowing to restore correct jaws relationship to cranium base. Correction of nasal and endonasal structures was performed, functions of nasal breathing and esthetic face parameters as a whole were restored. Comprehensive approach to planning and carrying out surgical treatment let to receive high esthetic and functional results.

Prosthodontic treatment of a patient with hemimandibular elongation: a clinical report

This clinical report describes prosthodontic treatment of a patient with hemimandibular elongation that resulted in significant dentofacial asymmetry. A maxillary metal-ceramic fixed dental prosthesis and crowns were fabricated. To eliminate the negative horizontal overlap, 3 mandibular teeth were reduced to the gingival level. The mandibular prosthetic restoration was completed with metal and composite resin using an electroforming technique.

Surgical and prosthodontic treatment alternatives for children and adolescents with ectodermal dysplasia: a clinical report

Ectodermal dysplasia with oligodontia and anodontia is characterized by absence or deficiency of the alveolar ridges. The optimal surgical and prosthetic approach varies in relation to patient age and the amount of bone that is present. This clinical report presents rehabilitation alternatives for ectodermal dysplasia in children and adolescents.

[The psychological rehabilitation of patients following reconstructive operations in congenital deformities of the jaw bones]

Various methods of psychotherapeutic correction, used in patients with congenital deformations of the jaw bones, are described. Individual and group psychotherapy before, immediately and in late periods after surgery was used. Good results were achieved, confirmed by objective psychologic tests.

[Mastication rehabilitation via dysgnathia surgery and simultaneous implantation]

Within the last 2 years 26 endosseous implants have been used in combination with orthognathic surgery in the maxilla and mandible. The results show, that endosseous implants can be used simultaneously with orthognathic surgery. This helps to treat dysfunctions often seen in partially edentulous patients that undergo orthognathic surgery and at the same time reduce the risk of relapse by achieving stable occlusion.

[A global approach to the dental care of children and young adults with trisomy 21. I. The dental and orofacial characteristics of Down's syndrome]

On the basis of a full analysis of recently reported data, it is shown that manifold and quite characteristic problems of dental and orofacial nature requiring global consideration coexist in Down's syndrome. These are addressed one by one in order to stress the need for dental treatment and to provide for correct planning of interventions right from the early months of life in the case of a patient with Down's syndrome.