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R Musil

Publications and source records attributed to R Musil.

At least 55 records · Page 3Linked to original sources

[Polymorphisms of the human chromosome no. 15 (author's transl)].

The short arm of the human chromosome No. 15 is composed of various heterochromatic regions. By using silver staining, mithramycin, Da-DAPI and quinacrine mustard fluorescence staining at least 5 different regions may be differentiated. All these components show independent heteromorphisms allowing easy individual identification of a given chromosome No. 15. These features may be useful for studies on heredity including affiliation cases.

Chromosomes, Human, 13-15

On the structure and polymorphism of the human chromosome no. 15.

Chromosome preparations from 67 randomly selected healthy individuals were consecutively stained with silver, mithramycin, pentamidine-DAPI, and quinacrine mustard. In the short arm of the chromosome 15 up to six regions, which were highly polymorphic, apparently independently of each other, could be detected by the given methods. The frequency of occurrence of each individual polymorphic feature in the population investigated ranges from 70% to 87%. They appear randomly and independently of each other.

Chromosome Banding

Nucleoli visualized by silver staining combined with a new RNA-specific fluorochrome.

A technique for distinguishing nucleolar components by light microscopy is described. Silver staining is used for localizing nuceolar-organizing regions. A new RNA-specific fluorochrome, 4''-6-bis(2'-imidazolinyl-4'-5'H)-2-phenyl-4'-phenoxyindole, visualizes the RNA-containing "partes fibrillares et granulares" of the nucleolus. Both staining procedures can be combined to analyze nucleolar structure and function by light microscopy.

Cell Nucleolus

[Impression taking in the edentulous mouth with special regard to closed mouth impression with simultaneous determination of the jaw relation].

In view of the increase in mean life expectancy and in the need for care in the gerostomatological sphere, more attention must be paid to such methods which optimize the construction of full dentures from the anatomico-pathological viewpoint, exert a rationalizing effect, and are likely to improve the success rate in the treatment of edentulous patients. The method of closed mouth impression and simultaneous determination of the jaw relation refers to well-proved principles of impression making, considers new findings concerning the determination of the jaw relation, incorporates modern materials and instruments, and forms the system character of clinico-technological measures.

Dental Impression Technique

[Foundations and methods of rational crown preparation].

The targeted removal of dental hard tissues for the purposes of crown stump preparation may be designated as rational if the technique used ist atraumatic and implies the deliberate use of driving systems within different speed ranges and the utilization of adapted abrasive tools in a phase-synchronous and segment-oriented manner. Goal of the preparation is to realize a copy of the clinical crown that is reduced in size, presents less details and has a defined line of preparation.

Crowns

[Rational methods of crown preparation].

Today, a rational technique of crown preparation seems to be defined by the following features: 1. Speed-conscious operation 2. Sectionalization into a phase of coarse preparation and a phase of fine preparation 3. Phase-synchronous and segment-oriented coarse preparation in the maximum speed range 4. Fine preparation by means of abrasive tools to achieve a defined preparation limit in the high-speed range 5. Finishing with the aid of properly formed diamond stones or tungsten-carbide finishers in the normal speed range 6. Speed-dependent supply of cooling water according to the principle of double safety (spray and additional cooling).

Crowns

[Tooth preservation and tooth extraction within the framework of prevention-oriented treatment planning].

The improvement in efficiency of prosthodontic therapy is linked to a strategic basic conception, the question of tooth preservation and extraction being of particular importance. The decisive criterion may consists in answering the question whether the step intended might contribute to structure preservation and function securing till old age or might be detrimental to these objective. The stomatologist may play a passive or an active role in the strategy of treatment.

Adolescent