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PubMed · 9823086

Biological restorations using tooth fragments.

A L Busato·A D Loguercio·A N Barbosa·M do C Sanseverino·R P Macedo·R A Baldissera
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Abstract

A "biological" restoration technique using dental fragments and adhesive materials is described. These fragments were obtained from extracted human teeth which had been previously sterilized and stored in a tooth bank. The advantages are: the use of extracted teeth as restorative material, esthetics, and treatment cost. The positive sensation of having back the missing tooth was the most mentioned comment among patients. The disadvantages are: the difficulty of obtaining teeth with the needed characteristics, problems of making an indirect restoration, matching the original color, and the non-acceptance by some patients who consider it strange to have other people's teeth placed in their mouths.

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BioprosthesisComposite ResinsCuspidDental Restoration, PermanentHumansIncisorTooth FracturesTooth, NonvitalJournal ArticleReview

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A L Busato, A D Loguercio, A N Barbosa, M do C Sanseverino, R P Macedo, R A Baldissera. 1998. Biological restorations using tooth fragments.. https://pubmed.ncbi.nlm.nih.gov/9823086/

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Early outcomes of tricuspid valve replacement in young children.

BACKGROUND: Early outcomes after tricuspid valve replacement in young children are ill defined. The experience of the Pediatric Cardiac Care Consortium (45 centers, 1984 to 2002) was reviewed to evaluate the results of tricuspid valve replacement in children <6 years of age. METHODS AND RESULTS: Ninety-seven patients who underwent initial tricuspid valve replacement are included in the present analysis. The most frequent cardiac diagnoses were Ebstein's anomaly (40%), pulmonary atresia (11%), and tetralogy of Fallot (8%). Age at tricuspid valve replacement was 2.9+/-1.7 years (mean+/-SD). Mean patient weight was 12.7+/-6.1 kg. The major outcome was survival to discharge. Associations among age, diagnosis, valve type/size, and outcome were evaluated through the use of chi2 analysis and logistic regression model fitting approaches. Hospital mortality was 26% and was very high (64%) in patients <1 year of age. A large size-to-weight ratio was the strongest predictor of mortality based on multivariable analysis (P<0.001). Mortality was 54% for patients with a size-to-weight ratio >2.5. Other complications included heart block requiring a pacemaker (13%) and thrombosis (5%). Pacemaker implantation was associated with the use of a mechanical valve (23% versus 6% bioprosthetic valve; P=0.01) CONCLUSIONS: Tricuspid valve replacement in young children is associated with high mortality, especially in infants <1 year of age. Surgical options other than tricuspid valve replacement such as transplantation may need to be considered in infants.

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