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Biomedical subjects

A Fleischer-Peters

Publications and source records attributed to A Fleischer-Peters.

At least 19 recordsLinked to original sources
PubMed1995

[The importance of hand x-rays for the treatment of skeletal dysgnathias].

This study demonstrates the importance of X-rays of the hand in assessing skeletal changes in jaw relationships. The study is based on a follow-up examination of 53 patients with skeletal class II,1-, skeletal class II,2-, class III and skeletal open bite malocclusions who had been treated orthodontically. Statistical analysis of the growth parameters found a significant correlation between chronological age and skeletal age with considerable deviations depending on sex. At the end of the treatment period it was observed that 34% of all patients had not reached the end of puberty and had not achieved a mature level of growth. During the post-therapeutical period, growth was found on average to be 2.4% in the girls and up to 4.7% in the boys. When looking at the influence of growth and therapy, the patient group with skeletal class II,1 malocclusion exhibited at both therapeutical and post-therapeutical examinations a very positive development both in the horizontal and vertical basal relation of the jaw with a significant increase in mandibular length and in anterior lower facial height. On the other hand the class II,2 cases exhibited significantly reduced lower facial height, which can probably be considered to be a causal factor in the 70% relapse rate after completion of orthodontic treatment. In class III malocclusions the horizontal jaw relationship was stabilized throughout the orthodontic treatment period, however, following treatment a progressive alteration became apparent. The results achieved in this study add weight to the importance of taking skeletal maturation factors into consideration in patients with skeletal jaw discrepancies. These factors are useful in prognosticating the therapeutical goal to be achieved, the degree of stability during treatment, and the chances of relapse following treatment.

Adolescent↗
PubMed1994

[The diagnosis and treatment of congenital facial asymmetries in childhood. A clinical study].

Following a brief discussion of etiology, pathogenesis, and diagnosis of congenital facial asymmetries, a new interdisciplinary treatment concept encompassing the disciplines of orthodontics, maxillo-facial surgery, and pedaudiology is set forth. This concept calls for the surgical reconstruction of the mandibular ramus and of the temporo-mandibular joint already in childhood in those cases in which functional jaw orthopedics has already begun at an early age. Thereafter the occlusal plane can be corrected orthodontically. Six patients were treated according to this concept. Two years nine months after surgery favorable results were observed in relation to occlusion and mandibular growth. Because, however, long term results are still outstanding, the results obtained until now and the treatment concept remain the subject of ongoing critical study.

Child↗
PubMed1993

[A critical evaluation of Class-II anomalies treated with functional orthodontic appliances].

In the course of a clinical and radiological follow-up study of 55 patients with class II malocclusions, who had been treated with functional appliances, the dental and skeletal changes were critically studies and statistically analyzed in relation to long term aesthetic, dental, and skeletal changes. Differences between class II, division 1 cases and class II, division 2 cases were also compared. The study revealed that at the end of the treatment period 80% of the functionally treated patients displayed much better nose to upper lip relations than at treatment begin. Aesthetically the best treatment results were in the class II, first group patients with an average 4.2 degree reduction of the soft tissue H-angle in the course of functional therapy. It was shown that both dental and skeletal changes were responsible fo the in most cases good treatment results, whereas the changes in patients in the two subgroups with class II malocclusions showed significant differentiations. This paper describes these changes in detail. Viewed in its entirety this study clearly supports the efficacy of functional therapy in adolescents. In relation to long-term stability the results of functional balanced occlusion and the stability of the maxillo-mandibular relationship should be especially emphasized, whereas the therapeutically induced protrusion of the mandibular incisors and their relapse should be critically viewed.

Adolescent↗
PubMed1992

[The functional treatment of deep bite--the results of a long-term study].

The amount of overbite reduction and the stability of the results three to 14.5 years post-retention were analysed in a follow-up study of 60 patients who had been treated with functional appliances. To establish therapeutic and posttherapeutic changes in dento-facial relationships, plaster casts and lateral cephalograms were evaluated at the beginning, at the end of treatment and at the follow-up examination. Posttherapeutic deepening of the overbite (> 0.8 mm) was found in 54.2% of the cases, while overbite reduction remained stable in 39%. A number of skeletal and dental factors were found to be involved in overbite reduction and posttreatment deepening. In this connection, changes in the ML-NSL angle, the ML-NL angle and the gonion angle were found to be just as important as the therapeutic and posttherapeutic changes in anterior and posterior facial height and changes in the skeletal pattern. It is emphasized that strict application of retention is of the greatest importance to minimize vertical relapse.

Adolescent↗
PubMed1991

[Studies on skull morphology in cleidocranial dysostosis].

Using computerized tomography (5 patients) and lateral cephalograms (17 patients) for analysing craniofacial pathology in patients with cleidocranial dysostosis, a number of specific morphologic disorders could be demonstrated in great detail. Furthermore, new characteristics of cranial base dysplasia and disproportion of the facial skeleton could be clearly demonstrated. These findings also explain the typical concave profile of these patients.

Adolescent↗
PubMed1991

[Single incisor syndrome and growth hormone deficiency].

The syndrome of single incisor belongs to the group of midline malformations and is characterized by a single incisor in the patient's maxilla. A growth hormone deficiency (GHD) can be associated. We report about two of our patients with this syndrome. A GHD was diagnosed at the age of 11.0 and 7.6 years, respectively, although a single incisor had already been present during their first dentition. The first patient was treated with HGH to a chronological age of 18.6 years (final height 168 cm), the second patient is still on therapy. The growth of children with craniofacial dysmorphic features must be controlled closely in order to diagnose a GHD in time.

Child↗
PubMed1990

[Dysmorphophobia in dentistry].

Patients suffering from dysmorphophobia with symptoms involving the masticatory system, i. e. teeth, mouth and jaws, were subjected to comprehensive examinations in close cooperation with the psychiatric profession. In rare cases the problem underlying the urgent desire for treatment in difficult patients is a disease known as dysmorphophobia. The signs of this disease that become evident in the dental office and the specific personality features of the patients affected are described and demonstrated in three typical case reports. Our experience has shown that irreversible and isolated dental manipulations are to be avoided. An interdisciplinary treatment objective (besser: approach?) integrating dental treatment into a greater therapeutic context is proposed.

Adolescent↗
PubMed1989

[The type and frequency of hand skeletal anomalies and their significance for body height growth].

The frequency of minor skeletal anomalies of the hand, such as brachymesophalangia, pseudo- and cone-shaped-epiphyses, as well as shortness of the fourth metacarpal bone were investigated in almost 5000 healthy children, undergoing orthodontic treatment. In addition body length was compared to the percentile curves of Kunze. Surprisingly, only 42% of all hand films demonstrated normal morphology. Certain anomalies could be found more frequently in girls than in boys and these seemed to exert an inhibitory effect on growth potential.

Body Height↗
PubMed1989

[Rieger syndrome as an expression of neural crest dysgenesis].

Malformations of the anterior segment of the eye can be associated with different systemic findings. The regular combination of aplasia of the permanent central and lateral incisors, typical ocular changes, and umbilical dysmorphology is known as the Rieger syndrome. Aplasia of the permanent incisors can serve as a diagnostic symptom. We report on three siblings who had characteristical symptoms of Rieger syndrome. The tissue involved derives from the neural crest cells. Mesenchymal dysgenesis is discussed as the etiology of this disorder.

Abnormalities, Multiple↗