SVIBOR - Project code: 3-02-279

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

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Project code: 3-02-279


MINERALISATION AND DEMINERALISATION OF HARD DENTAL TISSUES


Main researcher: ŠUTALO, JOZO (12433)



Assistants
Type of research: applied
Duration from: 01/01/91. to 12/31/93.

Papers on project (total): 76
Papers on project quoted in Current Contents: 12
Institution name: Stomatološki fakultet, Zagreb (65)
Department/Institute: School of dentistry, Department of Operative dentistry Zagreb
Address: Gundulićeva 5, 41000 Zagreb, +385 Croatia
Communication
Phone: 385 (0)1 423 666
Phone: 385 (0)1 424 121
E-mail: jsutalo@srcapp.srce.hr
E-mail: Ivica.Anic@public.srce.hr

Summary: Tooth caries is a very complex, dinamic, physical and chemical process which leads to the softening and destruction of hard dental tissues. To analyse the initial occurences at the enamel surface it is necessary to include the formation of pellicula and bacterial colonization, mineral and chemical composition of the enamel, posteruptive maturation, enamel fluoridation, immunological reactions and environmental influences. The basic problem in the restorative dentistry is to ensure optimal mechanical and biological properties of the material and such physical-chemical relations with hard dental tissues which are resistant to the masticatory forces and oral millieau influences and ensure the continous adhesion without marginal leakage. To ensure good adhesion of the composite material to the cavity walls, different materials and techniques have been used.

Keywords: Mineralisation, demineralisation, enamel, dentin, cement, composite resin, caries, laser, immunology

Research goals: 1. To analyse the degree of mineralisation and the composition of health and cariogenic saliva. 2. Determination of the initial manifestation in the chemism of the caries lesion. 3. To perform the epidemiological investigation of the prevalence of the erosions and abrasions and analyse the morphological properties and chemical structure of the surface and the deeper layers of the hard dental tissues affected by erosions. 4. Epidemiological investigation of the caries in the medical risky groups of the patients. 5. To analyse the immunological reactions in the dental tissue affected by the caries. 6. To evaluate the possibility of the usage of CO 2 laser on the hard dental tissues, investigate the temperature changes at the enamel surface and in the pulpe chamber during the CO 2 laser illumination and the clinical usage of the CO 2 laser for the prevention and the therapy of the caries. 7. To evaluate optimal light sources for the composite resins photopolymerization, ensuring as shorter as possible illumination time and improving the monomer conversion and depth of cure. 8. Compensation of the polymerization shrinkage in composite resin fillings and chois of the material with better physical and mechanical properties.


COOPERATION - PROJECTS


  1. Name of project: 302277 Bolesti endodonta i karijes; eksperimentalni i klinički studij
    Name of institution: Stomatološki fakultet Zagreb
    City: 10000 - Zagreb, Croatia


COOPERATION - INSTITUTIONS


  1. Name of institution: Institut Ruđer Bošković
    Type of institution: University/Faculty
    City: 10000 - Zagreb, Croatia

  2. Name of institution: Institut za fiziku PMF
    Type of institution: University/Faculty
    City: 10000 - Zagreb, Croatia

  3. Name of institution: Pliva
    Type of institution: State institute
    City: 10000 - Zagreb, Croatia

  4. Name of institution: Klinička bolnica "Sestre Milosrdnice"
    Type of institution: Economical/Production
    City: 10000 - Zagreb, Croatia

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Last update: 12/15/95
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